2. Pollution is our great e         . We should fight against it.

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1. 在(學(xué)完) 關(guān)于環(huán)境的課程后，我在擔(dān)心我們的將來(lái)。

After our lesson        the        ，I'm      the future.

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2. 你將廢棄物分成要回收的和需要丟棄的嗎？ 

Do you       the waste       things      and things       ?

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 It's very important that we all recycle. In na?ture,everything 1        again. For example,when an animal dies,it becomes 2        animal's food. Nothing is wasted. But humans have created things like plastic bags which can't be 3        down by nature. Our 4        kills animals and pollutes water and soil.5 we continue making too much rub?bish,the problem will only get worse. If nature can't reuse the rubbish,we must recycle 6        We should clean up the rubbish we've made because na?ture can't.

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(   ) 1. A. use   B. is used

   C. used   D. to use

(   ) 2. A. another   B. others

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(   ) 3. A. lain   B. broken

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(   ) 4. A. rubbish   B. nature

   C. material   D. pollute

(   ) 5. A. When   B. Why

   C. If   D. Unless

(   ) 6. A. them   B. it

   C. itself   D. themselves

(   ) 7. A. but   B. so

   C. and   D. although

(   ) 8. A. very   B. more

   C. much   D. many

(   ) 9. A. out   B. down

   C. up   D. off

(   ) 10. A. grows   B. growing   C. to grow   D. grown

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5. ―Who is your favourite s     ？ ―Liu Huan.

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(   ) 8. I still remember the time       we spent together at Xisai Mountain last year.

   A. when   B. what

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(   ) 3.―Do you think our team will win the final game?

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