Bài Tập Tiếng Anh 10 Unit 11: National Parks Có Đáp Án – Mai Lan Hương

UNIT 11 NATIONAL PARKS

I. Choose the word with the underlined 'letter pronounced different from the others.

1.  ​​​​ a. nation b. tourist c. study d. return

• a. world b. children c. grandfather​​  d.​​ dangerous

• a. nature b. potential c. option d. pollution

• a. handsome b. Wednesday c. dependent d. grandchild

• a. castle b. fasten​​  c. ballet d. intend

• a. national b. question c. population d. station

II. Complete the sentences with the correct form of the verbs in the box.

 locate  establish orphan  abandon contaminate

 explore  release  defeat  contain  endanger

1 . There is a danger of serious …….. ​​ from radioactive was:

• The giant panda is in danger of becoming extinct. It is an spec. …………

• Cuc Phuong National Park is …….. ​​ 160 km South West of Ha Noi

4. He............... wants how the human brain will function under these circumstances.

5. He has been ​​ ……….. since he was five.

6. The enemy was ​​ ………… ​​ in a decisive battle.

7. His mother ………… him when he was five days old.

8. The board agreed ………… two committees to examine the proposals..

9. Toxic gases from industrial factories were ……….. the atmosphere.

10. Brown rice……….a lot of vitamins and minerals.

III. Complete the sentences with the correct form of the words in bracket.

1. didn't go into business with Sam. If I ……… (go) business With him, I .................(become) a success.

2. We got to the station in time to catch the train. If we....................(miss), it We ................ (be) late for the meeting.

3. Mary and I weren't able to go on a honeymoon We.............. (can/ go) away if my father ……. (not get) sick.

4. I took a taxi to the hotel but the traffic was very bad. It ​​ ...................(walk).​​ (be) quicker​​ if​​ I....................​​ (walk)​​ 

5. It's good that you reminded me about Ann's birthday. I..............(forget) if you ……… (not remind) me.

6. The view was wonderful. If I ​​ ………. ​​ (have) a camera, I …….. ​​ (take) some photographs.

7. Unfortunately, I didn't have my address book with me when I was in New York. If I …… (have) your address, I ……….. (send) you a postcard.

8. We ………… (may/ be) at the airport for hours, if we ……… (not know) that the flight was delayed.

9. The accident was your fault: If you ……… (drive) more carefully, it ………….. (not happen).

10. If you ………. (tell) me you needed money, ………. (can/ lend) you some.

IV. Write a sentence with if for each situation.

1.  ​​​​ He didn't prepare for the interview, so he didn't get the job.

 __________________________________________________________

• We came home from our holiday early because we ran out of money.

 __________________________________________________________

• I can't take much exercise because I don't have enough free time.

 __________________________________________________________

• The house didn't burn down because the fire brigade came immediately.

 __________________________________________________________

• The men were wearing protective clothing, so they were all quite safe.

 __________________________________________________________

• People don't realise how important it is to conserve energy, so they do nothing about it.

 __________________________________________________________

• I took the job because I didn't know how difficult it was.

 __________________________________________________________

8.  ​​ ​​​​ My father didn't earn much money, so life wasn't easy for us.

 __________________________________________________________

9.  ​​​​ Daniel really wanted to buy the book, but he didn't have enough money.

 __________________________________________________________

10. There isn't any truth in her allegations, so I won't resign.

 __________________________________________________________

11. Andrew wanted to ask Frank Sinatra for his autograph, but he Wasn't brave enough

 __________________________________________________________.

12. 1 don't know anything about plumbing, so I can't fix the leak in the sink myself​​ 

 __________________________________________________________

V. Read the following newspaper report and use a suitable form of each verb in brackets.

​​ Several phone cars were involved the pile-up ​​ because no one (1)................(try) to phone the police for help. If some(2).............. ​​ the police immediately, they (3) ………(be able) to send an balance and also direct the traffic, thus (4) …….. ...(prevent) other accidents. A passer-by (5) …….. (tell) police that he (6) ​​ ……… (decide) to free the trapped drivel: before (7) ……… (phone) the police. He said that the trapped driver (8) ………  ​​​​ (beg) him not to leave him. If he (9) ​​ ……… (go oft) to look for a phone or to seek ​​ help, the driver (10) …….. (be) in the car when it (10) ……… (hit) by the second car.

VI. If necessary, correct these sentences.

• If Jack had been honest, he would return the money.

• The video pauses if you press this button.

• If she would have really wanted to see me, she would have come earlier.

• If he doesn't break the window then who is responsible?

• If Claire will continue to work hard, she should pass the exams easily.

• Steve would have been attacked if I hadn't come along.

• I'd be able to visit Jim first thing in the morning if I stay in Manchester overnight

• Speak to Jane if you wanted to book a room.

• If you know what it was going to be like, why did you come?

10. You'd be surprised if I told you how much this cost.

11. If I had suddenly announced that the holiday was cancelled, the children had objected.

12. We Might soon be making a profit if all will go according to plan.

VII. Choose the best answers to complete these conversations.

• 'It's pity the lake wasn't frozen yesterday.' `Yes, it is. if it​​  ​​ froze​​ we …….. skating.

 a. had been/ could have gone b. was/ could go

 c. would be/would have gone d. would have been; had gone

• 'Are you thinking about going to the Bahamas for the holidays?' `No, but I ……… the time, I would definitely..................​​ 

 a. have/ go  b. had/ go

 c. have had/ have gone d. would have/. have gone

• 'There's always something going wrong with this car.' 'If you had any sense, you'd …… it long ago.'

 a. be selling b. have sold c. sell d. sold

• 'Was Pam seriously injured in the accident?' 'She broke her arm. It............... much worse if she hadn't been wearing​​ her seat belt.

 a. will be b. would have been c. was d. were

5 'My boss made me work overtime again.' `If I ............ you. I my job.'

 a. were/ would have quit b. am/ will quit

 c. was/ must quit  d. were/ Would quit

6 'Can I borrow your car for this evening?' 'Sure, but Nora's using it right now. If she ……… it back in time, you ........... welcome to borrow it.'

 a. brought/ will be​​   b. would bring/ were​​ 

 c. will bring/ are  d. brings/ are
7. `Why didn't Bill get the promotion he was expecting?' `He may not be​​ qualified. If he were,' he …….. that promotion last year.'

 a. would have been given b. was given

 c. would be given  d. had been given

8. 'Why are you going mountain climbing next weekend?' 'To be honest with you, I'm lazy. If I ........... , I ………..with you.'

 a. hadn't been/ would have gone b. weren't/ would go

 c. am not/ will go  d. weren't/ go

9. 'Will you see Tom at lunch today? I'd like you to give him a message.' 'I'm not going to lunch, but if I ​​ him later, I ………… him your message.'

 a. should see/ will give b. see/ give

 c. saw/ would give  d. could see/ will give

10. 'John went to the hospital alone.' 'Did he? If he …….. me, I ……… with him.'

 a. told/ would go  b. told/ might have gone

 c. had told/ could go d. had told/ would have gone

11. 'My car broke down when I was leaving Detroit'…………, we'd ……… you up.'

 a. If we had known/ pick b. Had we known/ have picked

 c. If we'd known/ picked d. If we knew/ pick

12. 'I don't know whether to take that job or not.' …….. you, I ……… it.'

 a. If I had been/ would have taken b. Should I be/ will take

 c. if I were/ would  d. Were I/ would take

13. 'You look tired. "Well, if you ...............me up in middle of the night , I ..............so tired.'

 a. didn't wake/ wouldn't have been b. hadn't woken/ wouldn't be​​ 

 c. hadn't woken/ wouldn't have been​​  d. don't wake, won't be

14. 'Alice is moving to her new apartment next Saturday.' `I ……….. glad help her ………..​​ some help.'

 a. will be! should she need b. am/ if she will need

 c. must be/ if she needs d. would be/ had she needed

15. 'Why are you sitting in the dark?' `Let's just say that if I​​  ......... my electricity bill last month, I ……….. in the dark now.'

 a. paid/ wouldn't be  b. paid/ won't be

 c. had paid/ wouldn't have been d. had paid/ wouldn't be

VIII. Choose the correct preposition.

• Tourists go to Cuc Phuong National Park to look​​ at/ for​​ the 1,000-year-old tree

• He left school to take care​​ of/ on​​ his sick mother.

• Do you belong​​ in/ to​​ any campus clubs or organizations?

• Now that she has graduated, Anne is no longer dependent​​ to/ upon​​ ​​ her parents​​ in/​​ for financial support.

• That man is an idiot. He pushed me- down/ into the swimming-pool.

• Were you surprised at/ with the grade you received?

7.  ​​​​ Unfortunately, the excursion turned out/ into to be a disaster.

• Did you hear that news on/ in television or read it on/ in the newspaper':

• Occupational physicians search on/ for the causes of injury and sickness the workplace.

• Due on/ to a computer error, $100,000 was transferred to/ onto Judy's account.

• They have to live in/.​​ on a Social Security check of 5500 a month.

• I'm always interested in/ on how to recognise the different.​​ species of plants..

IX. Choose the correct answers to complete this passage.

Mount Rainer, the heart of Mt. Rainier National Park, is the highest mountain in the state of Washington and in the Cascade (1) ……….. The mountain’s summit is broad and rounded. It is 14,410 feet (2) …….. sea level and has an area of about one square mile. Numerous steam and gas jets occur (3)……… the crater, but the volcano has been sleeping for many centuries.​​ 

Mount Rainer has a permanent ice cap and (4) …….. snow fields, which give rise to more than forty glaciers. These feed swift streams and tumbling waterfalls that race (5) ……….. ​​ the glacial valleys. Forests extend to 4,500 fee. There we alpine meadows between the ,glaciers and the forests, which (6) ………… beautiful wild flowers. The Nisqually Glacier is probably the ice region that most often (7) …………...by visitors. Paradise Valley, (8) ………. hotel accommodate tions are available, perches (9). ……… the mountains slope at 5,400 feet The Wonderland Trail encircles the mountain. (10) ………… 90-mile length can be covered in about a week's time.

• a. Range b. Parkc c. Mount d. Area 

• a. on b. above c. from d. over

• a. on b. in c. through d. around

• a. extend b. extended c. extensive d. extensible

• a. to b. into c. through d.​​ down

• a. contain b. include c. combine d. cover

• a. attracted b. traveled c. established d. explored

• a. which b. where c. whose d. there

• a. on b. at c. in d. along

10. a. It's b. This c. Their d. It

X. Read the passage careful, then choose True, False, or No Information.

The idea of national parks began in the US, which now has 54 of them, covering over 80,000 square-miles (200,000 square kilometers). The great majority are in western states. The National Park Service is responsible for protecting the natural state of the parks for the benefit of the public. America's parks are so popular that they are being harmed by the number of visitors and their cars. To try to stop this, the National Paris Service announced in 1997, that people would only be able to visit some parks using public transport.

The oldest national park in the world is Yellowstone National Park, estab­lished in 1872. The largest US park is Wrangell-St Elias in Alaska with 13,000 square miles (34,000 square kilometers). It has few visitors because it is very remote. The most popular park is the Great Smoky Mountains. Many parks are well known for some special feature, such as the. Grand Canyon. the Ever­glades and the Petrified Forest.

1. ​​ There are 54 national parks in the United States.

 a. True b. False c. No Information

2. The surface area of the US is over 80,000 square miles.

 a. True b. False c. No Information

• In the US, most of the national parks are located in the west.​​ 

 a. True b. False c. No Information

• National parks attract thousands of visitors each year.

 a. True b. False c. No Information

• There are a lot of visitors come to America's national parks.

 a True b. False c. No Information

• People are not allowed to drive in some parks.

 a. True b. False c. No informatics.

• Wrangell-St Elias in Alaska has few visitors because it's hard to find.​​ 

 a. True b. False c. No Information

• Yellowstone National Park is the first US national park.

 a. True b. False c. No Information

• Everglades National Park is a subtropical wilderness in the southeast­ern United States.

 a. True b. False c. No Information

10. The natural state of the parks in the United States is protected the National Park Service.

 a. True b. False c. No Information

TEST FOR UNIT 11

I. PRONUNCIATION

A. Choose the word that has the underlined part pronounced differently from the others.

1. ​​ a. nation b. cave c. locate d. park

• a. explore b. tropical c.​​ orphan d. transport

• a.​​ toxic . b.​​ tourist c. feature d. threaten

• a. established b. orphaned c. recognized d. endangered

5. a.​​ threaten b. ethnic c. together d. southeast

B.​​ Choose the word whose main​​ stress​​ is place differently from the others.

6. a. establish  b. butterfly  c. orphanage  d. national

7. a. variety  b. recognize  c. contaminate  d. abandoned

8. a. expensive  b. tropical  c. release  d. survival

9. a. toxic  b. ethnic  c. explore  d. threaten

10. a. polluted  b. dangerous  c. comfortable​​  d. temperate

II. VOCABULARY AND EXPRESSION

Choose the word or phrase – a, b, c, or d - that best completes the sentence or substitutes for the underlined word or phrase.

• Of the six people in the plane when it crashed, only one​​  

 a. existed b. lived c. hurt d. survived

• The cattle drank from a river polluted with​​ toxic​​ chemicals.

 a. waste b. colorless c. odorless d. poisonous

• The charity is totally' dependent ​​ money from the public.

 a. from b. in c. upon d. with

• When the wastes are poured into the atmosphere, the air becomes​​ con­taminated​​ and unpleasant to breathe.

 a. dense b. dirty c. upon d. with

• They were sent to a local …………. Right after their parents death. 

 a. orphanage b. hospital c. park d. prison

• Cuc Phuong National Park is ……… 160 km South West of Ha Noi.

a. lied b. established c. abandoned d. located

7. ​​ Nearly 1,000 of the world's bird species are ​​ with extinction.

 a. threatened b. endangered c. protected d. abandoned

8. Many people come to the national parks to see the work being done to protect​​ endangered species.

• plants or animals that may be dangerous to people

• plants or animals that disappeared from the world

• plants or animals that are about to die

• plants or animals that may soon become extinct

9. Scientists are now researching new measures to prevent levels from rising.

 a. pollute b. polluted c. polluting d. pollution

10. This park is the orphanage where lots of orphaned and abandoned animals are​​ taken care of.

 a. looked after b. involved in c. dealt with d. moved in

III. GRAMMAR AND STRUCTURE

A. Choose the word or phrase - a, b, c, or d - that best completes the sentence.​​ 

1. If the world's​​ tropical forests continue to disappear at their present rate, many animal species​​ ............ extinct.

 a. became​​  b. would have become​​  c. will become​​  d. would become

2……….. resigned, we would have been forced to sack him.

 a. Had he not b. Hadn't he c. He had not d. He not had

• I won't lend you this money ​​ you' ……….. promise to pay it back.

 a. in case b. if c. otherwise d. unless

• If you …….. us about the bad. service, we'd have eaten there.

 a. didn't tell  b. wouldn't have told​​ 

 c. hadn't told  d. had told

• Diana is a wonderful ballet dancer. She...................since she was four.

 a. has been dancing  b. has been danced.​​ 

 c. has danced  d. was danced

• The door was locked ……….​​ 

 a. five minutes ago by Ann b. with Ann five minutes ago

 c. by Ann five minutes ago d. in five minutes ago by Ann

• It would have been a much more serious accident................ fast at the time

 a. was she driving  b. she had driven

 c. had she been driving d. if she drove

• Do you think there would be less conflict in the world if all people …… the same language?

 a. speak b. will speak c. spoke d. had spoken

• The teacher was absent today, so class was canceled. If she ab­sent again tomorrow, class

 tomorrow, too.​​  ​​ 

 a. is/ will cancel  b. is/ will be canceled

 c. was/ would be canceled d. was/ would cancel

• Hundreds of Species of Hawaiian flowers have become extinct or rare……. extensive land development.

 a. now that b. due to c. because d. for

11. Marge's children are used to ……… after school every day. They don i have to walk home.

 a. picking up b. being picked up​​  c. be picked up. d. pick up

12. You'll......................l

 a. be met by my uncle at.​​ the airport.​​  b. meet​​ .at the airport by my uncle​​ 

 c. being met by my uncle at the airport.​​  ​​ d. be met at the airport by my uncle

13. If I wasn't working for an accounting firm, I ………. in a bank:

 a. had worked  b. will work

 c. would have worked d. would be working

14. If you ……..to my advice in the first place, you.............in this mess right now

 a. listen! won't be  b. listened/ wouldn't have been

 c. will listened/ wouldn't be d. had listened/ wouldn't be 15.. 'Have you ever played bridge?

15. Yes, we ……. all the time when I was in college.'

 a. would have played  ​​ b. had played

 c. used to play​​   d. have played

B. Identify the one underlined word or phrase​​ 4​​ A, B. C or D - that must be changed for the sentence to be correct.

1. The dentist​​ said​​ to​​ brush​​ three times a day and​​ don't​​ eat​​ candy.​​ 

  A​​  B C​​  D

• Before the final decision​​ is reached,​​ the various possibilities​​ should​​ probably​​ 

 A B

discussed​​ by​​ the whole team.

  C D

• If we​​ leave​​ now for our trip, we​​ can ​​ drive​​ half the distance​​ before​​ we stop​​ having​​ lunch. 

  A B​​  C D

• I've been studying​​ French​​ since​​ I've​​ started​​ high school.

  A B ​​ C ​​ D

• We could have given you a lift if we'd know you were coming this way.

​​ A

• The car​​ would survive​​ the tornado,​​ had it​​ been parked​​ on the​​ other side​​ of​​ the road.

  ​​ A B C D

• Virgin Island National Park features​​ an underwater'​​ preserve with​​ coral​​ reefs and​​ colorfully​​ 

 A ​​ B​​  C​​  

tropical​​ fish.

  D

8. Among​​ other reason, the Humane Society​​ established​​ to shelter​​ animals, educate animal owners,

  A C D

and influence legislation​​ regarding​​ the protection of animals.

  D

9. The​​ oceans​​ contain many​​ forms​​ of life that​​ has​​ not​​ yet​​ been discovered.​​ 

  A B C D

10.​​ If​​ Nick hadn't​​ come along, I​​ don't know​​ what​​ would happen.​​ 

 A B C D

IV. SPEAKING

Choose the appropriate sentence to complete this conversation.,​​ 

Daniel: (1)……................

Rachel: This looks all right. (2) …….. .................

Emma Oh: I've forgotten the sausages. They're in the car.​​ 

Matthew: (3) ……......................​​ 

Emma Oh thanks, Matthew.​​ 

Vicky: (4) …..............It looks nicer over there.

Rachel : ​​ No, it's fine here.

Daniel: Yes, (5) ………...............

Emma: Would you like a sandwich,​​ 

Vicky? Vicky :(6) .....................

Emma: (7) ………....................​​ 

Matthew: And here are the sausages. (8) ……..............​​ 

A. Will you have one, E. Would anyone like one?

B. Shall I get them?​​  F. Let's sit here.​​ 

C. I'd love to, but I'm still full. G. it's better here, I think

D. Where should we have our picnic, then?​​  H. We could sit by those trees.

V. READING COMPREHENSION

A. Choose the words or phrases that best complete this passage.

Cuc Phuong, the first national park in Viet Nam, was (1) ………. opened 1960. It (2) …….. 160 kilometers south west of Ha Noi spanning. Ninh Binh, Hoa Binh and Thanh Hoa (3) ……... Cuc Phuong National Park (4) …….. over 200 square kilometers of rainforest. It attracts (5) …… tourists and scientists. In 2002, nearly 100,000 visitors (6) ……..​​  their way to Cuc Phuong. Tourists come there to study butterflies, visit caves, hike mountains and lo at the (7) ……. tree. Many come to see the work (8) ……. to protect (9) ……… species. According, to scientists, there are about 2,000 different species (10) …… and 450 species of fauna in the park.

• a. recently b. probably c. specially d. officially

• a. locates b. located c. is located d. is locating

• a: provinces b. towns c. districts d. cities

• a. covers b. contains c. abandons d. controls

• a. neither b. either c. both d. every

• a. had b. made c. got d. lost

• a. 1,000-year-old b. 1,000-years-old c. 1,000 year old d. 1,000 years

• a. done b. to be done c. been done d. being done

• a. dangerous b. wild b. flora c. rare d. endangered

• a. trees  c. vegetation d. flowers

B. Read the passage

In the United States and its territories alone, there are more than 40 national parks, varying considerably in landscape and mood. Each park was chosen for its unique features, representative of a particular region of the country. Everglades National Park, for example, at the southern tip of Florida. is a huge subtropical swamp, which provides refuge for such unusual reptiles as the alligator and for thousands of varieties of birds. including the graceful pink flamingo. In sharp contrast to the Everglades are the arid, dusty parks of the West. Mesa Verde National Park in Colorado. for example, preserves the ruins of an Indian civilization​​ which​​ 'flourished​​ in the twelfth and thirteenth centuries. Today, tourists can wander through the awesome cliff dwellings that the Indians carved out of the steep rock.

1. What is the main idea of the passage?

• The large number of nation parks.

• National parks as a wildlife refuge.

• The diversity of the national parks.

• The differences between Mesa Verde National Park and the Everglades.

2. National parks in the US ………

a. are a lost different from each other.

b. change a lot in landscape and mood.

c. are made more interesting.  

d. are completely different from other parks in the world.

3. Everglades National Park is …………

• in the south of the United States.

• home to alligators and many varieties of birds.

• an area of land that is full of water.

• all are correct.

4. The word​​ 'which'​​ in line 9 refers to

a. Mesa Verde National Park.​​  

b. ruins.​​ 

c. Indian 

d. civilization.

5. Which of the following statements is false?

• Every national park in the US has its special features.

• Everglades Park has a cold climate.

• The ruins of an Indian civilization are being, preserved.

• Some of the dwellings in Mesa Verde are accessible only by ladder.

VI. WRITING​​ 

Choose the sentence (a, b, c, or d) which is closest meaning to the sentence above.

1. Were it not for the money, this job wouldn't be worthwhile.

• This job is not rewarding at all.

• This job offers a poor salary.

• Although the salary is poor, the job is worthwhile.

• The only thing that makes this job worthwhile is the money.

2. If we don't protect wildlife now, there will be nothing left for future generate​​ 

• Wildlife is being protected now in case there will be nothing left future generations.

• There will be nothing left for the future generations unless we protect wildlife.

• Only if we protect wildlife, there will be nothing left for the future generations

• It's important to protect wildlife now or there will. be nothing left for the ​​ future generations.

3. If we had left any later, we would have missed the train.

• We left too late to catch the train.

• When we arrived, the train had already left.

• We: missed the train because it was late.

• We almost missed the train.

4. 'Why don't we go to Nam Cat Tien National Park?' he said.

• He asked why we didn't go to Nam Cat Tien National Park.

• He offered to go to Nam Cat Tien National Park.

• He suggested going to Nam Cat Tien National.​​ Park.

• He advised us to go to Nam Cat Tien National Park. .

5. We are planning on spending the weekend in the country as long as weather stays fine.

• We are spending the weekend in the country because of the fine weather

• If the weather is fine, we'll spend our weekend in the country.

• If the weather was fine, we would spend our weekend in the count

• We won't spend the weekend in the country unless the weather is​​ fine

6. I didn't have an umbrella with me, so I got wet.

• If I had had an umbrella, I wouldn't get wet.

• If I had an umbrella, I wouldn't get wet.

• If I had had an umbrella, I wouldn't have got wet.

• If I have an umbrella, I won't get wet.

TEST YOURSELF

I. Choose the words that best answer the following questions.

1. Which of the following words is.​​ stressed on the first syllable?

 a. conserve b. organism c. interact d. erosion

2. Which of the following words is stressed on the second syllable?​​ 

 a. biodiversity b. national c. orphanage d. survival

3. Which of the following words has the final pronounced lid!?

 a. eliminated b. established​​  c. conserved ​​ d. threatened

4. Which of the following words has the underlined part pronounced differ­ently from that of the others?

 a. pair b. rain c. afraid d. straight

5. Which of the following words has the letter​​ p​​ is silent?

 a. protect b. camping c. cupboard d. people

II. Choose the word or phrase - a, b, c, or d - that best completes each sentence or substitutes for the underlined word or phrase.

6. New laws have been passed to ………. wildlife in this area.,

 a. establish b. conserve c. produce d. endanger

7. They were seeking a solution to. the ……… of the rain forests.

 a. destroy b. destroying c. destroyer d.. destruction

8. Although he didn't have a ticket, Ken ………. come in.

 a. could b. can​​  c. might d. was allowed to

9. Nearly 1,000 of the world's bird species are threatened with ...................... 

 a. appearance b. protection c. extinction d. destruction

10. We really ought to make a start on campaigns to ……… our polluted rivers and seas.

 a. clean up b. clear away c. wipe out d. tidy up

11. He came running …….. the room and threw his books …….. the floor.

 a. into/ at b. in/ to c. to/ on d. into/ onto

12. Rare species of plants or ………. can be found in this region.

 a. fauna​​  b. flora c. flowers​​  d. vegetation

13. The​​ hydroelectric​​ plant provides electricity for half the island's population.

• using hydrogen to produce electricity

• using radiating energy to produce electricity

c.  ​​​​ using water power to produce electricity

d.  ​​​​ using tidal power to produce electricity

14. Thy water is so​​ contaminated​​ that it is not suitable for drinking.

 a. toxic b. salty c. dangerous d. polluted

15. Without plants, mast water would ………. as soon as it falls.

 a. run out b. run off e. run of d. run away

III. Choose the correct answer - a, b, c, or d that best completes each sentence.

16. if Al had come sooner, he ……. dinner with us.

 a. could have eaten​​  b. would being eaten​​  c. was eating​​  d. could eat

• 'Are you still employed at the bank?' 'Yes, I ……… there since 19S:

 a. have working  b. worked

 c. have been working  d. had been working

• Orlando, a city in Florida, ……… for its main attraction - Disney

 a. which is well-known b. well-known

 c. which well-known  d. is well-known

• 'What's wrong with your stereo?' `The needle needs ……….. 

 a. to replace b. replacing c. to be replace d. replace

20. All the students ……….​​ do well in writing.

 a. whom Mr. Davis teaches them b. which Mr. Davis teaches

 c. that Mr. David teaches them d. Mr. Davis teaches

21. The world ​​ ………….a better place if we had known a hundred years what we know today about the earth's environment.

 a. will be b. was c. should be d. might be

22. If water is heated to 212 degrees F ……….. as steam.

 a. it can boil and escape b. it is boiled and escaped

 c. it boils and escapes d. it would boil and escape

23. ……… ​​ resigned, we would have been forced to sack him.

 a. Had he not b. Hadn't he c. He had not d. If he had

24. ​​ television to the exclusion of all other activities is not a heal ……….. ​​ habit for a growing child.

 a. To be watched​​  b. Being watched ​​ c. Watching d. Watch

25. It's against the law to kill the black rhinoceros. They …….. extinct.

 a. became b. have become c. become d. are becoming.

IV. Identify the one underlined word or phrase - A, B, C or D - that be changed for the sentence to be correct.

26. Scientists​​ suggest​​ that only one​​ percent of​​ the world’s​​ extinct​​ animals​​ and plants​​ has identified.

  ​​ A​​  B C D

27.​​ Some​​ underground water is​​ enough safe​​ to drink,​​ but​​ all surface water​​ must​​ treated.

 A​​   B C D​​ 

28. ​​ Because​​ the expense of​​ traditional​​ fuels and the concern that they​​ might run out​​ many countries​​ 

  A B C 

have been investigating​​ alternative sources of power.

  D

29.​​ Would​​ you mind​​ bringing​​ your camera​​ in​​ the graduation party​​ tomorrow?

  A B C D

30. Biochemists​​ have solved​​ many of the​​ mysteries​​ about photosynthesis, the​​ process which​​ plants​​ 

  A B C 

make​​ food.

 D

31. Many people who live near the ocean​​ depend​​ on it as a source of​​ food, ​​ recreation,​​ and​​ to have​​ 

  A B C D

economic​​ opportunities.

32. Geothermal​​ energy​​ is enemy​​ to obtain​​ by​​ using​​ heat from​​ the Earth's​​ interior. .

  ​​ A B C D

33.​​ Most​​ types of dolphins​​ will live​​ at least twenty-five years, and some​​ species may reach 50​​ years​​ 

  A B C D

.of

34. Isle Royale National Park​​ in​​ Lake Superior​​ can​​ only be​​ reached​​ by​​ their​​ preys.

  A B C D

35. Sharks​​ can detect​​ minute​​ electrical discharges​​ come​​ from their​​ preys.​​ 

  A B C​​  D

V. Choose the one option - a, 6, c or d - that best completes the passage,​​ 

Yellowstone National Park, the first US national park, was (36) …….. in 1872. It is one of the largest parks. It (37) ………… about 3, 500 square (38) ………. or 9, 063 square kilometers (39) …….. north-west Wyoming and parts of Idaho and Montana. It has many wild animals, (40) ……… bears, buffalo, elk, deer, antelope, coyotes, and lynxes, and is famous​​ (41)..................its tine scenery, hot springs and (42) …………. (underground hot spring that shoot hot water or steam up into the air). There are about seventy geysers in the park. The famous is old Faithful.

The park is a (43) ……….. tourist attraction. It has about three million​​ (44) ……….. a year. It was (15) …………a World Heritage Site in 1978.

36. a. started b. established​​  c. constructed d. introduced

37. a. contains b. involves c. covers d. spreads

38. lands b. feet c. distances​​  d. miles

39. a. in b. of c. from d. at

40. a. containing b. including c. adding d. consisting

41. a. to b. as c. with d. for

42. ​​ a. waterfalls b. torrents c. geysers d. chutes

43. a. interesting b. favorite c. fashionable d. popular

44. a. visitors b. foreigners c. migrants d. trippers

45. a. called b. opened c. made d. formed

VI. Choose the best answers.

Rainforests circle the globe for twenty degrees of latitude on both sides the equator. In that relatively narrow band of the planet, more than half of all the species of plants and animals in the​​ world make their home. ​​ Sever hundred different varieties of trees may grow in a single acre, and just one of those trees may be the habitat for more than ten thousands kinds of spiders ants, and other insects. More species of amphibians, birds, insects, mammals and reptiles live in rainforests than anywhere else on earth.

Unfortunately, half of the world's rainforests have already been destroyed and at the current rate, another 25 percent will be lost by the year 200. Scientists estimate that as many as fifty million acres are destroyed annually. In other words, every sixty seconds, one hundred acres of rainforest is cleared. When this happens, constant rains- erode the former forest floor, ​​ thin layer of soil no longer supports plant life, and the ecology of the region is altered forever. Thousands of species of plants and animals are condemned to ​​ extinction and since we aren't able to predict the ramifications of this loss o a ​​ delicate global ecology, we don't know what we may be doing to the future the human species as well.

46. 'What is the point of view that the author expresses in this passage?

• The author believes that the rainforest will survive.

• The author believes that preserving the rainforest is important to global ecology.

• The author believes that he can predict the future of global ecology.

• The author believes that the extinction of species is a natural process.

47. According to the passage, more than half of all the species of​​ plants​​ and animals​​  

• live in twenty rainforests.

• live in several hundred different varieties of trees.

• live in a forty-degree band of latitude.

• live​​ in​​ areas where the rainforest has been cleared.

• How many of the worlds rainforests are projected to be destroyed by the year 2000 if the current rate continues?

  a. All of them will be gone. b. Three-quarters of them will be gone.

  c. Half of them will be gone. d. One-quarter of them will be gone.

49. The word​​ 'this.'​​ in line 12 refers to …………….

  a. the destruction of the acres. b. the reading of the passage.

  c. the erosion of the forest floor. d. the constant rains.

50. What will not happen if the rainforest continues to be cleared?

• The land will be eroded by the rains.

• Many species of plants and animals that depend on the rainforest will become extinct.

• The future of the human species may be changed.

• The rainforest will glow, but at a much slower rate.

ĐÁP ÁN

UNIT 11.

I. 1. a  ​​ ​​ ​​ ​​ ​​​​ 2. c  ​​ ​​ ​​ ​​ ​​ ​​​​ 3. a  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 4. c  ​​ ​​ ​​ ​​ ​​ ​​​​ 5. d  ​​ ​​ ​​ ​​ ​​ ​​​​ 6. b

II. 1. Contamination  ​​ ​​​​ 3. located  ​​ ​​ ​​ ​​ ​​​​ 5. orphaned  ​​ ​​ ​​ ​​​​ 7. abandoned  ​​ ​​ ​​ ​​​​ 9. released 

 ​​ ​​ ​​​​ 2. endangered  ​​ ​​ ​​ ​​ ​​ ​​​​ 4. to explore  ​​​​ 6. defeated  ​​ ​​ ​​ ​​ ​​​​ 8. to establish  ​​ ​​ ​​​​ 10. Contains

III. 1. had gone - would/ could have become  ​​ ​​ ​​ ​​ ​​ ​​​​ 6. had had - would have taken 

 ​​ ​​ ​​ ​​​​ 2. had missed - would have been  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 7. had bad - would have sent​​ 

 ​​ ​​ ​​ ​​​​ 3. could have gone - hadn’t gotten  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 8. might have been - hadn’t known​​ 

 ​​ ​​ ​​ ​​​​ 4. would have been - had walked  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 9. had driven - wouldn’t have hapjtened​​ 

 ​​ ​​ ​​ ​​​​ 5. would have forgotten - hadn’t reminded  ​​ ​​ ​​ ​​​​ 10. had told - could have lent​​ 

IV. 1. If he had prepared for the interview, he would have gotten the job. 

 ​​ ​​ ​​ ​​ ​​​​ 2. If we hadn’t run out of money, we wouldn’t have come home fron our 

holiday early.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 3. If I had more free time, I would take more exercise.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 4. If the fire brigade hadn't come immediately, the house would have burnt lown.  ​​ ​​ ​​​​ 5. If the men hadn’t worn protective clothing, they wouldn’t have been all 

quite safe.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 6. If people realised how important it is to conserve energy, they would/ 

might do something about it

 ​​ ​​ ​​ ​​ ​​​​ 7. If I had known how difficult the job was, I wouldn’t have taken it.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 8. Life would have been easy for us if my father had earned more money.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 9.​​ If Daniel had had enough money, he would have bought the book.​​ 

 ​​ ​​ ​​​​ 10. If there was/ were​​ any​​ truth in her allegations, I would resign.​​ 

 ​​ ​​ ​​​​ 11. If Andrew had been brave enough, he would have asked Frank Sinatra for 

. his autograph.​​ 

 ​​ ​​ ​​​​ 12.​​ If I knew something about plumbing, I could fix the leak in the sink myself.​​ 

 ​​ ​​ ​​​​ 13. Rita wouldn’t be exhausted today if she had gotten some sleep last night.​​ 

 ​​ ​​ ​​​​ 14. If the doctor really cared about his patients, he would have explained the 

medical procedure to me before surgery. 

 ​​ ​​ ​​​​ 15. If Bob hadn’t left his wallet at home this morning, he would have some 

money for lunch.

​​ V. 1. tried/ had tried  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​​​ 7. phoning​​ 

 ​​ ​​ ​​ ​​ ​​​​ 2.​​ had called   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 8. had begged/begged 

 ​​ ​​ ​​ ​​ ​​​​ 3.​​ wouid have been able   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​ 9. had gone off

 ​​ ​​ ​​ ​​ ​​​​ 4. preventing   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 10. would have been​​ 

 ​​ ​​ ​​ ​​ ​​​​ 5. told   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 11. was hit

 ​​ ​​ ​​ ​​ ​​​​ 6. decided/ had decided​​ 

VI. 1. he would have returned...   ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 7. ..if I stay…/I’ll be able to visit Jim…

 ​​ ​​ ​​ ​​ ​​​​ 2.​​ ۷ ​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 8.​​ ..if you want...

 ​​ ​​ ​​ ​​ ​​​​ 3. If she had really wanted to see me...  ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​ ​​ 9. If you knew...

 ​​ ​​ ​​ ​​ ​​​​ 4. If he didn’t break...  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​​​ ​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​  ​​​​ 10.​​ ۷

 ​​ ​​ ​​ ​​ ​​​​ 5. If Claire continues...  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​ ​​ 11. ..the children would have objected

 ​​ ​​ ​​ ​​ ​​​​ 6.​​ ۷  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 12. ...if all goes according to plan

VII. 1. a  ​​ ​​ ​​ ​​ ​​​​ 2. b  ​​ ​​ ​​ ​​ ​​​​ 3. b  ​​ ​​ ​​ ​​ ​​​​ 4. b  ​​ ​​ ​​ ​​ ​​​​ 5. d   ​​ ​​ ​​​​ 6. d  ​​ ​​ ​​ ​​ ​​​​ 7. a  ​​ ​​ ​​ ​​ ​​​​ 8. b  ​​ ​​ ​​​​ 9. a  ​​ ​​​​ 10. d  ​​ ​​ ​​​​ 11. b

 ​​ ​​ ​​ ​​ ​​​​ 12.​​ d ​​ ​​ ​​ ​​​​ 13. b  ​​ ​​ ​​ ​​​​ 14. a  ​​ ​​ ​​ ​​​​ 15. d​​ 

VIII. 1. at  ​​ ​​ ​​​​ 2. of  ​​ ​​ ​​​​ 3. to  ​​ ​​ ​​​​ 4. upon - for   ​​ ​​ ​​ ​​​​ 5. into  ​​ ​​ ​​ ​​ ​​​​ 6. at  ​​ ​​ ​​ ​​ ​​​​ 7. out  ​​ ​​ ​​ ​​​​ 8. on - in 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 9. for  ​​ ​​ ​​ ​​ ​​​​ 10. to - to  ​​ ​​ ​​ ​​ ​​ ​​​​ 11. on  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 12. in 

IX. 1. a  ​​ ​​ ​​ ​​ ​​ ​​​​ 2. b  ​​ ​​ ​​ ​​ ​​ ​​​​ 3. d  ​​ ​​ ​​ ​​ ​​​​ 4. c  ​​ ​​ ​​ ​​​​ 5. c  ​​ ​​ ​​ ​​ ​​​​ 6. a  ​​ ​​ ​​ ​​​​ 7. d  ​​ ​​ ​​ ​​ ​​​​ 8. b  ​​ ​​ ​​​​ 9. a  ​​ ​​ ​​​​ 10. d​​ 

X. 1. T  ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 2. T  ​​ ​​ ​​ ​​ ​​ ​​​​ 3. NI  ​​ ​​ ​​​​ 4. T  ​​ ​​ ​​ ​​​​ 5. F  ​​ ​​ ​​ ​​​​ 6. T​​ 

XI. 1. The national park is a large piece of land in which animals are free to come 

 ​​ ​​​​ and go.

 ​​ ​​ ​​ ​​ ​​​​ 2. Yellowstone became the world’s first national park in 1872.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 3. Plans have been made to retore the parks to their natural condition as much as  ​​ ​​ ​​​​ possible since then.

 ​​ ​​ ​​ ​​ ​​​​ 4. Cuc Phuong, (which was) the first national park in Vietnam, was officially opened  ​​ ​​​​ in 1960.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 5. According to scientists, there are about 2,000 different species of flora in the park.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 6. Many visitors come to see the work be/ being done to protect endangered species.  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 

 ​​ ​​ ​​ ​​ ​​​​ 7. The best time to visit thft park is from October to April, when the rainy season​​ is over.​​ 

 ​​ ​​ ​​ ​​ ​​​​ 8. Cuc Phuong is also home to the Muong ethnic minority, who live mainly on bee keeping and farming. 

TEST FOR UNIT 11

l.​​ A. 1. d  ​​ ​​ ​​​​ 2. b   ​​ ​​ ​​​​ 3. c  ​​ ​​ ​​​​ 4. a  ​​ ​​ ​​​​ 5. c

 ​​ ​​​​ B. 1. b  ​​ ​​ ​​​​ 2. b  ​​ ​​ ​​ ​​​​ 3. b  ​​ ​​ ​​​​ 4. c  ​​ ​​ ​​​​ 5.​​ a​​ 

II.  ​​ ​​​​ 1. c  ​​ ​​ ​​ ​​​​ 2. c   ​​ ​​ ​​​​ 3. a  ​​ ​​ ​​​​ 4. b  ​​ ​​ ​​​​ 5. b  ​​ ​​ ​​ ​​ ​​​​ 6. d  ​​ ​​ ​​ ​​​​ 7. d  ​​ ​​ ​​ ​​ ​​​​ 8. a  ​​ ​​ ​​ ​​​​ 9. b  ​​ ​​ ​​ ​​​​ 10. a 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 11. d  ​​ ​​ ​​ ​​​​ 12. a  ​​ ​​ ​​ ​​​​ 13. d  ​​ ​​ ​​ ​​​​ 14. d  ​​ ​​ ​​ ​​​​ 15. a 

III.​​ A. 1. c  ​​ ​​ ​​ ​​​​ 2. b  ​​ ​​ ​​​​ 3. d  ​​ ​​ ​​ ​​​​ 4. c  ​​ ​​ ​​​​ 5. a  ​​ ​​ ​​ ​​​​ 6. c  ​​ ​​ ​​ ​​​​ 7. c  ​​ ​​ ​​ ​​ ​​​​ 8. c   ​​ ​​​​ 9. d ​​ ​​ ​​ ​​​​ 10. b

 ​​ ​​ ​​ ​​ ​​ ​​​​ 11. b  ​​ ​​ ​​​​ 12. d  ​​ ​​ ​​ ​​​​ 13. d  ​​ ​​ ​​ ​​​​ 14. d  ​​ ​​ ​​ ​​ ​​​​ 15. c​​ 

 ​​ ​​​​ B. 1.c (not to)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 5. c (’d known)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 9. c (have)

 ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 2. c (be discussed)  ​​ ​​ ​​ ​​ ​​​​ 6. a (would have survived)  ​​ ​​ ​​ ​​ ​​​​ 10. d (would have happened)​​ 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 3. d (to have)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 7. c (colorful)​​ 

 ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 4. c (I)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 8. b (was established)​​ 

IV. 1. d  ​​ ​​ ​​ ​​ ​​​​ 2. f  ​​ ​​ ​​ ​​ ​​​​ 3. b  ​​ ​​ ​​ ​​ ​​​​ 4. h  ​​ ​​ ​​ ​​ ​​ ​​​​ 5. g  ​​ ​​ ​​ ​​ ​​​​ 6. c  ​​ ​​ ​​ ​​ ​​​​ 7. a  ​​ ​​ ​​ ​​ ​​ ​​​​ 8. e 

V.​​ A. 1 d  ​​ ​​ ​​​​ 2. c  ​​ ​​ ​​ ​​​​ 3. a  ​​ ​​ ​​ ​​ ​​​​ 4. b  ​​ ​​ ​​ ​​ ​​ ​​​​ 5. c  ​​ ​​ ​​ ​​ ​​​​ 6. b  ​​ ​​ ​​ ​​ ​​​​ 7. a  ​​ ​​ ​​ ​​ ​​ ​​​​ 8.​​ d  ​​ ​​ ​​ ​​ ​​​​ 9. d  ​​ ​​ ​​​​ 10. b 

 ​​ ​​ ​​​​ B.​​ 1. c  ​​ ​​ ​​​​ 2. a  ​​ ​​ ​​ ​​​​ 3. d  ​​ ​​ ​​ ​​​​ 4. d  ​​ ​​ ​​ ​​ ​​ ​​​​ 5. b​​ 

VI. 1. d  ​​ ​​ ​​ ​​ ​​​​ 2. d  ​​ ​​ ​​ ​​ ​​​​ 3. d  ​​ ​​ ​​ ​​​​ 4. c  ​​ ​​ ​​ ​​ ​​ ​​​​ 5. b  ​​ ​​ ​​ ​​ ​​ ​​​​ 6. c 

TEST YOURSELF

​​ I. 1. b  ​​ ​​ ​​ ​​ ​​​​ 2. d  ​​ ​​ ​​ ​​ ​​ ​​​​ 3. a  ​​ ​​ ​​ ​​​​ 4. a  ​​ ​​ ​​ ​​ ​​​​ 5. c  ​​ ​​ ​​ ​​ ​​​​ 

​​ II. 6. b  ​​ ​​ ​​ ​​​​ 7. d  ​​ ​​ ​​ ​​ ​​ ​​​​ 8. d  ​​ ​​ ​​ ​​ ​​​​ 9. c  ​​ ​​ ​​ ​​​​ 10. a  ​​ ​​ ​​ ​​​​ 11. d  ​​ ​​ ​​ ​​​​ 12. b  ​​ ​​ ​​ ​​​​ 13. c  ​​ ​​ ​​​​ 14. d  ​​ ​​ ​​​​ 15. b

IIl. 16. a  ​​ ​​​​ 17. c  ​​ ​​ ​​ ​​​​ 18. d  ​​ ​​ ​​​​ 19. b  ​​ ​​ ​​​​ 20. d  ​​ ​​ ​​ ​​​​ 21. d  ​​ ​​ ​​ ​​​​ 22. c  ​​ ​​ ​​ ​​​​ 23. b  ​​ ​​ ​​​​ 24. c  ​​ ​​ ​​​​ 25. d

IV. 26. d (has been identified)  ​​ ​​ ​​ ​​ ​​ ​​​​ 30. c (process by which).  ​​ ​​ ​​​​ 34. d (boat). 

 ​​ ​​ ​​ ​​ ​​​​ 27. b (safe enough)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 31. d (economic)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 35. c (coming)​​ 

 ​​ ​​ ​​ ​​ ​​​​ 28. a (Because of)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 32. b (obtained)

 ​​ ​​ ​​ ​​ ​​​​ 29. c (to)  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ 33. b (live)​​ 

V. 36 b  ​​ ​​ ​​ ​​​​ 37. c  ​​ ​​ ​​ ​​​​ 38. d  ​​ ​​ ​​ ​​​​ 39. a  ​​ ​​​​ 40. b  ​​ ​​ ​​ ​​​​ 41. d  ​​ ​​ ​​​​ 42. c  ​​ ​​ ​​ ​​​​ 43. d  ​​ ​​ ​​​​ 44. a  ​​ ​​ ​​​​ 45. C

VI. 46. b  ​​ ​​​​ 47. c  ​​ ​​ ​​ ​​​​ 48. b  ​​ ​​ ​​ ​​​​ 49. a  ​​ ​​​​ 50. d