2. Biogas is not a new energy, but it is (new).
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A:Hi,Eric!Great news!
B:1
A;Plastic bags thinner than 0. 025 mm will not be used in the supermarket.
B: 2
A:It is good news because plastic bags are bad for the environment.
B: Oh,I didn't know that. 3
A:We can use cloth(布)bags instead of plastic ones.
B:4 A cloth bag can be used for a long time. 5
A;You can buy one in the supermarket. But I can give you one.
B:Thanks a lot.
1.
2.
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5.
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( ) 1.1 think people should stop trees, or the environment will become worse.
A. cut down
B. to cut down
C. cutting down
D. are cutting down
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從方框中選出合適的短語(yǔ)并用其適當(dāng)形式填空。
cut down,come into being,die out, blow away, wash away
1. People destroyed the living conditions of animals. So some animals on the earth are completely.
2. Trees can stop the wind from the earth.
3. Heavy rain will the soil soon if there are no trees.
4. A new rule will soon to solve the problem.
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5. There are more than 3 ,000 languages spoken in the world.(對(duì)畫線部分提問)
______ ________ languages are there in the world?
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1. 當(dāng)我們不用電燈的時(shí)候我們應(yīng)該關(guān)閉 它們。
We the lights when we aren't using them.
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2. It is very expensive. We can't buy it.(合并為一句)
It is expensive for us buy.
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5. Wuhan is very hot,and the temperature can reach n________ 40in summer.
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