Class 10 UNIT 10: CONSERVATION
Choose the word that has the underlined part pronounced differently from the others.
1. A. eliminate B. elephant C. endanger D. erosion
2. A. pollute B. species C. accept D. receipt
3. A. environment B. hydroelectric C. circulation D. wild
4. A. club B. lamb C. doubt D. bomber
5. A. disease B. spread C. breed D. treat
Key: 1. B 2. D 3. C 4. A 5. D
VOCABULARY AND EXPRESSION:Choose the best answers.
1. Half the world′s rain forests have already been ___________.
A. endangered B. eroded C. found D. destroyed
2. Try to eliminate fatty foods from your diet.
A. limit B. get rid of C. move D. add
3. Endangered animals should be bred in _______ areas.
A. conservative B. conservable C. conservation D. conservate
4. Acid rain has caused severe _______ on the hillside.
A. erosion B. pollution C. destruction D. floods
5. This channel allows rainwater to run off.
A. keep inside B. move around C. flow into D. flow out of
6. A large Hydroelectric __________was built on the River Danube.
A. power B. dam C. bank D. wall
7. Water can be held on the land by vegetation.
A. plants used as food B. grown trees
C. the growth of plants D. plants and trees
8._________ take the train instead of the bus? It′s faster.
A. How about B. Let′s C. Why don′t D. Why not
9. _________air makes people unpleasant to breathe.
A. Pollute . B. Pollution. C. Polluted D. Polluting
10. We are now facing the possible________ of several rare species.
A. danger B. variety C. existence D. disappearance
Key: 1. D 2. B 3.C 4.A 5.D
6. D 7. B 8. C 9. A 10. D
GRAMMAR AND STRUTURE: Choose the best answers.
1. Would you like ……….. lunch with us? Yes, I′d love to.
A. have B. to have C. having D. had
2. Are you interested in scuba diving? ………..`Very. Undersea life is
A. fascinated B. fascinating C. being fascinating D. being fascinate
3. Ms. Jones, please type those letters before noon.
They′ve already ……….. sir. They′re on your desk.
A. typed B. been typed C. being typed D. been being typed
4. Both domestic and imported automobiles must ……… anti-pollution devices.
A. equip with B. be equipped with C. equip by D. be equipped
5. Has the committee made its decision yet? Not yet. They ………. the proposal.
A. are still considering B. are still being considered
C. are still considered D. have been considered
6. What a beautiful dress you′re wearing!
Thank .you. It ……….. especially for me by a French tailor.
A. is made B. has made C. made D. was made
7. Last night a tornado swept through Rockville. It ………. everything in its path.
A. was destroy B. was being destroyed
C. destroyed D. had been destroyed
8. In some areas, water ……….. from the ground faster than nature can replenish the supply.
A. is being taken B. has been taking
C. is taking D. has taken
9. An announcement about the eight o′clock flight to Chicago ........................
A. has been already made B. has already made
C. has already been mad D. already made
10. ……… during the storm.
A. They were collapsed the fence
B. The fence was collapsed
C. They collapsed the fence
D. The fence collapsed
11. The new computer system ………. next month.
A. is being installed by people B. is be installed
C. is being installed D. is been installed
12. The man ……….. because medical help was not summoned. A doctor ................... immediately.
A. was died/ should have been called
B. died/ should have called
C. is died/ should been called
D. died/ should have been
13. Today, many serious childhood diseases ……….by early immunization.
A. are preventing B. can prevent
C. prevent D. can be prevented
14. Why did Tom keep making jokes, about me? I don′t enjoy
A. be laughed at B. to be laughed at
C. laughing at D. being laughed at
15. Many reliable methods of storing information ...................... when computers arrived.
A. tend forgotten . B. tend to forget
C. tend to be forgotten D. tend being forgotten
Key: 1. B 2. B 3. B 4. B 5. A
6. D 7. C 8. A 9. C 10. D
11. C 12. D 13. D 14. D 15. C
READING COMPREHENSIONS
Read the passage carefully, then choose the correct answers.
We know that every year less than 100 people are attacked by sharks and about 5 to 10 of these people die. But, let’s look at he other side of the story – How many sharks do people kill? Well I think you already know this: People kill many more sharks. Every year, people hunt and kill thousands of sharks. One reason people kill sharks is for sport; they hunt them just for fun. Some people started to have contests to see who kill the most sharks or he bigger sharks. Another reason that people kill sharks is for food. In some countries, such as the United States and Great Britain, shark meat is a popular food. In other countries, such as China, people use shark fins to make soup. Because so many people like to eat shark, fishing boats catch a lot of sharks to sell for food.
So, for both of these reasons, people are killing many sharks. Some biologists are getting worried that the number of sharks is getting too small. That’s why many biologists think we should stop killing so many sharks, and instead try to protect them – or else some day they may all be gone. Some countries have already passed some laws to help protect sharks. The United States, for example, has passed laws that limit the number of sharks that people can kill or food or for sport. So even though some people like to hunt sharks, we do need t protect them.
1. How many sharks are hunted and killed every year?
A. one hundred B. many
C. five to ten D. thousands
2. People want to kill sharks because....................
A. they are afraid of sharks
B. shark meat is a popular food
C. they get their enjoyment from killing sharks.
D. both B and C are correct.
3. The number of sharks in the world is........................
A. getting worried by some biologists. B. being killed
C. getting bigger D. getting smaller.
4. Why do billowing wants to protect sharks?
A. Because they want to learn more about sharks.
B. Because they are afraid some day sharks may no longer exist.
C. Because of the number of sharks that were killed
D. Because sharks fins can be used in medicine.
5. Which of the following is not mentioned in the passage?
A. People like to hunt sharks.
B. Laws have been passed in sharks’ defence.
C. The governments prohibited people from killing sharks.
D. People are killing many sharks for some reasons.
Key: 1. D 2. D 3. D 4. B 5. C
WRITING: Write the sentences using the cues.
1. we/ now/ faced/ problems/ environment.
à ……………………………………………………………………………………..
2. erosion/ soil/ result/ when / forests/ cut/ carelessly.
à ……………………………………………………………………………………..
3. rivers/ streams/ seas/ dirtied/ activities/ land.
à ……………………………………………………………………………………..
4. polluted/ air/ be/ chiefly/ city problem.
à ……………………………………………………………………………………..
5. plants/ species/ many/ animals/ be/ danger/ extinction.
à ……………………………………………………………………………………..
6. laws/ must/ some/ pass/ help/ protect/ environment.
à ……………………………………………………………………………………..
Key:
1. à We are now faced with the problems of the environment.
2. à Soil erosion results when forests are cut down carelessly.
3. à Rivers, streams, and seas are being dirtied by activities on land.
4. à Polluted air is chiefly a city problem.
5. à Many species of plants and animals are in danger of extinction.
6. à Some laws must be passed to help protect our environment.
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