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Grade 9 UNIT 7. SAVING ENERGY 
Choose the best option to complete each of the following sentences. 
1. Can you turn ________the light? -It’s too dark. 
A. on B. off C. in D. for 
2. I suggest ________showers instead of taking bath. 
A. take B. taking C. to take D. to taking 
3. - What are you looking ________? - My picture book. I’ve lost it. 
A. on B. off C. in D. for 
4. A new air-conditioner will be ________tomorrow morning. 
A. to intall B. installed C. installing D. install 
5. Scientists are looking for an ________way to reduce energy consumption. 
A. effect B. effection C. effective D. effectively 
6. They are completely short of water now. A number of people have died because of this ________. 
A. shortage B. short C. shorten D. shortly 
7. If you want to save money, you should ________the amount of water your family uses. 
A. increase B. reduce C. adapt D. repair 
8. In order to save electricity, an ordinary 100-watt light bulb can be replaced by a(n) ________. 
A. energy-saving bulbB. energy-save bulb C. saving energy bulb D. save-energy bulb 
9. You should get a (n)________to make sure there are no cracks in the pipes. 
A. plumber B. mechanic C. electrician D. consumer 
10. ________you take the train instead of the bus? It’s faster and cheaper. 
A. Why not B. Why don’t C. How about D. Let’s 
11. If we ________less paper, we ________the number of trees in the forests. 
A. used/ will save B. use/ can save C. can use/ save D. use/ can 
12. She won’t take all the suitcases ________she likes to travel light. 
A. so B. but C. because D. therefore 
13. She is very tired; ________, she has to finish her homework. 
A. moreover B. so C. and D. however 
14. - Is he an actor ________a singer? - An actor 
A. and B. or C. with D. so 
15. He was tired, ________he took a rest before continuing the work. 
A. so B. and C. but D. if 
16.Who looks ________your children when you are away from home? 
A. for B. at C. after D. to 
17.Why doesn’t she go ________with her university study? 
A. in B. at C. to D. on 
18. After coming home, she cleaned the floor ________cooked dinner. 
A. but B. however C. moreober D. and 
19. They didn’t understand the matter ________she didn’t ask for help. 
A. but B. however C. moreover D. and 
20. How about ________posters on energy saving and hanging them around our school? 
A. make B. making C. to make D. to making 
Give the correct formof the verbs in brackets. 
21. I suggest ________________some money. (collect) 
22.What about ________________a shower instead of a bath to save energy. (take) 
23. I think we should ________________off the faucets. (turn) 
24. If we plant more trees along the streets, we ________________more shade and fresh air. (have) 
25. If the pollution _____________on, the world will end up like a second-hand junk-yard. (go) 
Filling each gap with a suitable phrasal verb in the box. 
--turn on – turn off – look for – look after – go on – look forward to – put off-- 
26. Mai can’t go to the movies with us tonight. She will have to ________her little sister. 
27. If we ________wasting water, there will be a shortage of fresh water in a few decades. 
Page 1 THE SECOND SEMESTER
Grade 9 UNIT 7. SAVING ENERGY 
28. “________the TV, will you? I want to watch the weather forecast.” 
29. “ I think I’ve lost my new pen. I’ve ________it eveywhere. 
30. Mrs. Yen forgot to ________the faucets when she letf home for work. 
31. I am ________hearing from you. 
32. Never ________till tomorrow what you can do today. 
Match a word or phrase in column A with a definition in column B. 
A B Keys 
33. plumber 
34. energy 
35. solar 
36. innovation 
37. enormous 
38. turn off 
A. switch off 
B. of or using the sun 
C. a person whose job is to fix and repair water pipes. 
D. the power from electricity, gas, coal,…making things work 
E. a new idea, method 
F. very big or very large. 
33- 
34- 
35- 
36- 
37- 
38- 
Give the correct form of the word in brackets. 
39. There is a ________________faucet in your kitchen. (drip) 
40.We can protect the environment by ________________air pollution. (reduce) 
41. I am very ________________because they use electricity to catch fish. (worry) 
42. I want to see the ________________of environment from the local authority. (protect) 
43. Scientists are looking for an effective way to reduce energy _______________. (consume) 
Complete the second sentences 
44. It was raining, so we decided to postpone our camping. 
 Since ___________________________________________________________________________ 
45. She wants them to sing a song. 
 She suggests they _________________________________________________________________ 
46. She couldn’t join us because she was busy. 
 She was busy, so ________________________________________________________________ . 
47. Shall we go to the cinema tonight? 
 What about ______________________________________________________________________ 
48.Why don’t we use energy-saving bulbs? 
 I suggest ________________________________________________________________________ 
49. Although she was not beautiful, she took part in a beauty contest. 
 She wasn’t beautiful but ____________________________________________________________ 
50.Work hard and you will pass the exam. 
 If you ___________________________________________________________________________ 
51. If you don’t start working hard now, you won’t be able to pass the final exam. 
 Unless __________________________________________________________________________ 
52.We are delighted. You passed your English exam. 
 We are delighted ________________________________________________________________ . 
53. She was tired and therefore she wanted to go home. 
 She wanted to go home because _____________________________________________________ 
Fill in each gap with a suitable word in the box. 
--energy – money – electricity – machines – by – save – how much – in-- 
For most North American households, lighting accounts for 10 percent to 15 percent of the 
_______(54) bill. However, this amount can be reduced_______(55) replacing an ordinary 110-watt 
light bulb with an _______(56) saving bulb. These bulbs use a quarter of the electricity of standard 
bulbs and last eight times longer. Therefore, consumers can _______(57) about US$ 7 to $21 per bulb. 
In Europe, there is a labeling scheme for refrigerators, freezers, washing _______(58) and tumble 
dryers. The label tells the consumers _______(59) energy efficicent each model is, compared with other 
appliances _______(60) the same category. 
Ultimately, these innovations will save _______(61) as well as conserving the Earth’s sources. 
Page 2 THE SECOND SEMESTER
Grade 9 UNIT 7. SAVING ENERGY 
------THE END------ 
Page 3 THE SECOND SEMESTER

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E9 bai tap theo unitunit 7 saving energy

  • 1. Grade 9 UNIT 7. SAVING ENERGY Choose the best option to complete each of the following sentences. 1. Can you turn ________the light? -It’s too dark. A. on B. off C. in D. for 2. I suggest ________showers instead of taking bath. A. take B. taking C. to take D. to taking 3. - What are you looking ________? - My picture book. I’ve lost it. A. on B. off C. in D. for 4. A new air-conditioner will be ________tomorrow morning. A. to intall B. installed C. installing D. install 5. Scientists are looking for an ________way to reduce energy consumption. A. effect B. effection C. effective D. effectively 6. They are completely short of water now. A number of people have died because of this ________. A. shortage B. short C. shorten D. shortly 7. If you want to save money, you should ________the amount of water your family uses. A. increase B. reduce C. adapt D. repair 8. In order to save electricity, an ordinary 100-watt light bulb can be replaced by a(n) ________. A. energy-saving bulbB. energy-save bulb C. saving energy bulb D. save-energy bulb 9. You should get a (n)________to make sure there are no cracks in the pipes. A. plumber B. mechanic C. electrician D. consumer 10. ________you take the train instead of the bus? It’s faster and cheaper. A. Why not B. Why don’t C. How about D. Let’s 11. If we ________less paper, we ________the number of trees in the forests. A. used/ will save B. use/ can save C. can use/ save D. use/ can 12. She won’t take all the suitcases ________she likes to travel light. A. so B. but C. because D. therefore 13. She is very tired; ________, she has to finish her homework. A. moreover B. so C. and D. however 14. - Is he an actor ________a singer? - An actor A. and B. or C. with D. so 15. He was tired, ________he took a rest before continuing the work. A. so B. and C. but D. if 16.Who looks ________your children when you are away from home? A. for B. at C. after D. to 17.Why doesn’t she go ________with her university study? A. in B. at C. to D. on 18. After coming home, she cleaned the floor ________cooked dinner. A. but B. however C. moreober D. and 19. They didn’t understand the matter ________she didn’t ask for help. A. but B. however C. moreover D. and 20. How about ________posters on energy saving and hanging them around our school? A. make B. making C. to make D. to making Give the correct formof the verbs in brackets. 21. I suggest ________________some money. (collect) 22.What about ________________a shower instead of a bath to save energy. (take) 23. I think we should ________________off the faucets. (turn) 24. If we plant more trees along the streets, we ________________more shade and fresh air. (have) 25. If the pollution _____________on, the world will end up like a second-hand junk-yard. (go) Filling each gap with a suitable phrasal verb in the box. --turn on – turn off – look for – look after – go on – look forward to – put off-- 26. Mai can’t go to the movies with us tonight. She will have to ________her little sister. 27. If we ________wasting water, there will be a shortage of fresh water in a few decades. Page 1 THE SECOND SEMESTER
  • 2. Grade 9 UNIT 7. SAVING ENERGY 28. “________the TV, will you? I want to watch the weather forecast.” 29. “ I think I’ve lost my new pen. I’ve ________it eveywhere. 30. Mrs. Yen forgot to ________the faucets when she letf home for work. 31. I am ________hearing from you. 32. Never ________till tomorrow what you can do today. Match a word or phrase in column A with a definition in column B. A B Keys 33. plumber 34. energy 35. solar 36. innovation 37. enormous 38. turn off A. switch off B. of or using the sun C. a person whose job is to fix and repair water pipes. D. the power from electricity, gas, coal,…making things work E. a new idea, method F. very big or very large. 33- 34- 35- 36- 37- 38- Give the correct form of the word in brackets. 39. There is a ________________faucet in your kitchen. (drip) 40.We can protect the environment by ________________air pollution. (reduce) 41. I am very ________________because they use electricity to catch fish. (worry) 42. I want to see the ________________of environment from the local authority. (protect) 43. Scientists are looking for an effective way to reduce energy _______________. (consume) Complete the second sentences 44. It was raining, so we decided to postpone our camping.  Since ___________________________________________________________________________ 45. She wants them to sing a song.  She suggests they _________________________________________________________________ 46. She couldn’t join us because she was busy.  She was busy, so ________________________________________________________________ . 47. Shall we go to the cinema tonight?  What about ______________________________________________________________________ 48.Why don’t we use energy-saving bulbs?  I suggest ________________________________________________________________________ 49. Although she was not beautiful, she took part in a beauty contest.  She wasn’t beautiful but ____________________________________________________________ 50.Work hard and you will pass the exam.  If you ___________________________________________________________________________ 51. If you don’t start working hard now, you won’t be able to pass the final exam.  Unless __________________________________________________________________________ 52.We are delighted. You passed your English exam.  We are delighted ________________________________________________________________ . 53. She was tired and therefore she wanted to go home.  She wanted to go home because _____________________________________________________ Fill in each gap with a suitable word in the box. --energy – money – electricity – machines – by – save – how much – in-- For most North American households, lighting accounts for 10 percent to 15 percent of the _______(54) bill. However, this amount can be reduced_______(55) replacing an ordinary 110-watt light bulb with an _______(56) saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times longer. Therefore, consumers can _______(57) about US$ 7 to $21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing _______(58) and tumble dryers. The label tells the consumers _______(59) energy efficicent each model is, compared with other appliances _______(60) the same category. Ultimately, these innovations will save _______(61) as well as conserving the Earth’s sources. Page 2 THE SECOND SEMESTER
  • 3. Grade 9 UNIT 7. SAVING ENERGY ------THE END------ Page 3 THE SECOND SEMESTER