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46..a. much b. more c. little d. less
47.a. energy b. electricity c. water d. time
48.a. when b. what c. how d. while
49.a. ways b. sides c. parts d. points
50.a. Reusing b. Reducing c. Recycling d. Reacting
The environment is senously polluted today. To protect the environment, we should reduce the plastic bags, bottles and cans. We should put the garbage in a certain place or in the recycling bins. Remember save and recycle paper so that we can avoid cutting a lot of trees in the forest. That means we can reduce the soil pollution. It would be better if we go to work or school by bike or walk, we can save energy and keep the air cleaner. Or we can reuse and recycle things. And we should not throw trash into the rivers and lakes to keep the water not polluted. Do these things we will protect the environment and we will live healthier life.
1. How is the environment today? The environment is senously polluted today.
2. Where should we put the garbage? We should put the garbage in a certain place or in the recycling bins.
3. Why must we save and recycle paper? We must save and recycle paper so that we can avoid cutting a lot of trees in the forest.
4. Will we live healthier life if we keep the environment clean? Yes, we will.
Read the passage and answer the questions.
The environment is senously polluted today. To protect the environment, we should reduce the plastic bags, bottles and cans. We should put the garbage in a certain place or in the recycling bins. Remember save and recycle paper so that we can avoid cutting a lot of trees in the forest. That means we can reduce the soil pollution. It would be better if we go to work or school by bike or walk, we can save energy and keep the air cleaner. Or we can reuse and recycle things. And we should not throw trash into the rivers and lakes to keep the water not polluted. Do these things we will protect the environment and we will live healthier life.
1. How is the environment today?
=> The environment is senously polluted today
2. Where should we put the garbage?
=> We should put the garbage in a certain place or in the recycling bins.
3. Why must we save and recycle paper?
=> Remember save and recycle paper so that we can avoid cutting a lot of trees in the forest.
4. Will we live healthier life if we keep the environment clean?
=> Yes , we will
1, Yes, it is
2, We shouldn't throw trash into the rivers and lake to keep the water unpolluted
END. 
1. Yes, it is.
2. We shouldn't throw trash into the the rivers and the lake to keep the water unnpolluted.
GOOD LUCK !
IV, Write a suitable word in each blank to complete the passage.
Three ways everyone can help make the Earth a greener place is to reduce, reuse, and recycle! When people reduce it means they are using (1)……less………. of something. This allows us to create less waste. Turning off the (2)……faucet…………. when we brush our teeth is a simple way to reduce. This is a small action that prevents us from wasting water. Another small action people can take is to reuse things we already have. Taking bags to the store when we shop for food is one way to reuse them. Using both (3)………sides…….. of piece of paper before getting a new one is another way to reuse. (4)………Recycling………. is when new materials are created from old ones. Paper, plas, and metalare all materials that can be recycled. Things newspapers, soda cans, and plas bags can all be turned into new objects if we take the time to recycle them!
IV, Write a suitable word in each blank to complete the passage.
Three ways everyone can help make the Earth a greener place is to reduce, reuse, and recycle! When people reduce it means they are using (1) little of something. This allows us to create less waste. Turning off the (2) water when we brush our teeth is a simple way to reduce. This is a small action that prevents us from wasting water. Another small action people can take is to reuse things we already have. Taking bags to the store when we shop for food is one way to reuse them. Using both (3) when of piece of paper before getting a new one is another way to reuse. (4) recycling is when new materials are created from old ones. Paper, plas, and metalare all materials that can be recycled. Things newspapers, soda cans, and plas bags can all be turned into new objects if we take the time to recycle them!
12. Don't throw that old____________ away. We can decorate it to make a flower vase.
A. can B. glass C. bottle D. paper
13. I think you should____________ to save water.
A. have a bath B. go swimming C. heat water D. have a shower
14. We should____________ to prevent pollution.
A. use reusable bags B. plant more trees C. turn off the lights D. save electricity
15. We will buy____________ for our class
A. water bottles B. recycling bins C. energy-saving lights D. refillable pencils
16. If we plant more trees in the schoolyard, the school will become a ____________ place.
A. darker B. dirtier C. greener D. more polluted
17. If we all use ____________ bags, we will help the environment.
A. new B. cheap C. reusable D. reduced
18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.
A. to B. of C. in D. at
19. These three Rs ____________ reduce, reuse, and recycle.
A. stand up B. stand for C. ask for D. means
20. Because plastics bags are very hard to ____________, they will cause pollution.
A. dissolve B. wrap C. tear D. collect
21. If there is a rubbish bin in every class, the classroom will become ____________.
A. harmful B. dirtier C. cleaner D. lighter
12. Don't throw that old____________ away. We can decorate it to make a flower vase.
A. can B. glass C. bottle D. paper
13. I think you should____________ to save water.
A. have a bath B. go swimming C. heat water D. have a shower
14. We should____________ to prevent pollution.
A. use reusable bags B. plant more trees C. turn off the lights D. save electricity
15. We will buy____________ for our class
A. water bottles B. recycling bins C. energy-saving lights D. refillable pencils
16. If we plant more trees in the schoolyard, the school will become a ____________ place.
A. darker B. dirtier C. greener D. more polluted
17. If we all use ____________ bags, we will help the environment.
A. new B. cheap C. reusable D. reduced
18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.
A. to B. of C. in D. at
19. These three Rs ____________ reduce, reuse, and recycle.
A. stand up B. stand for C. ask for D. means
20. Because plastics bags are very hard to ____________, they will cause pollution.
A. dissolve B. wrap C. tear D. collect
21. If there is a rubbish bin in every class, the classroom will become ____________.
A. harmful B. dirtier C. cleaner D. lighter\
Điền câu thích hợp vào ô trống
A . I want to recycle it
B. It saves water
C. What for
D. I'll throw it out
E. we'll take it to the recycling center
F. you save fifteen to twenty percent of the water
G. You can reuse it
H.just put it in the closet
I. You put the bottle in the bathroom
J.fill it with water
Conversation A:
A:If you've finished reading the newspaper, ....D....
B: No,wait. .....A....
A: recycle the newspaper? That's a good idea
B: yeah, um, ...H.. . When we get a big pile, ....E....
A:ok
Conversation B:
A: uh, don't throw away that plastic bottle. ....G....
B: An old plastic bottle? ...C... ?
A:To save water. You put some rocks in the bottle and ...J.... . The rocks and water make the bottle heavy. ....I.... ...ah, in the toilet tank
B: you put it in the toilet tank?
A: Yeah, ..B... . Every time you plush the tank ....F....
B:It saves that much water? wow!
* Chào em, em tham khảo nhé!
( Dữ kiện khá mờ nên làm bài hơi khó khăn )
4.many products are now helping you with your energy bills.
a. reduce b. reuse c. recycle d. cut down
5. it takes a lot of energy to keep food cool, so don't ..... the fridge door open or putting hot things inside.
a. make b. have c. left. stop
6. future houses will have hi-tech rooms for ............... all of the family members.
a. read b. to read c. reading d. to reading
7. our houses will use the sun or the wind electricity.
a. to have b. to do c. to make d. to give
8. in the future, cars might use energy from.
a. gas b. water c. oil d. power
9. our dream house will be located in the sea.
a. on b. at c. in d. between
10. don't old things because perhaps you will need them later.
a. throw b. throw away c. throwing d. throwing away
11. causes many breathing problems.
a. fresh air b. fresher air is. polluted air d. polluted air
12. we won't use cd players because we will have smartwatches that _____ music.
a. play b. plays c. hear d. listen to
13. if you eat fast food...., you will be fatter easily.
a. very b. very much c. too much d. most
I. Choose the best answer to complete each of the following sentences.
1. We can reuse things like_______.
A. envelopes
B. plastic bottles
C. cloth bags
D. glasses
2. People throw away millions of_________every year.
A. old car tires
B. drink cans
C. old newspapers
D. household wastes
3. Will you_________, please?
A. open the garbage can
B. hang the clothes
C. empty the dustbin
D. collect the bottles
4. Billions of_________are throw away every year all over the world.
A. cans
B. bottles
C. cups
D. glasses
5. Things like___________can be reused.
A. plastic bags
B. fabrics
C. paper toys
D. envelopes
6. We can recycle old clothes and make them into_________.
A. compost
B. leather
C. shopping
D. jogging shoes
7. Don't throw that old___________away. We can decorate it to make a flower vase.
A. can
B. glass
C. bottle
D. paper
8. I think you should_________to save water.
A. have a bath
B. go swimming
C. heat water
D. have a shower
9. We should__________to prevent pollution.
A. use reusable bags
B. plant more trees
C. turn off the lights
D. save electricity
10. We will buy_________for our class.
A. water bottles
B. recycling bins
C. energy-saving lights
D. refillable pencils
theo mk thì :
1-b
2-d
3-d
4-a
5-a
6-c
7-c
8-c
9-a
10-c
đây là theo mk nghĩ thôi nha