知識(shí)點(diǎn)一 pollution 污染;污染物 pollute認(rèn)污染相關(guān)短語(yǔ)：water pollution水污染;air pollution空氣污染;noise pollution嗓音污染。

1. (詞形填空) our government is taking some action to stop the water (pollute) .

知識(shí)點(diǎn)二much cleaner干凈得多

much作程度副詞，修飾形容詞或副詞比較級(jí)，意為“ 得多”。

2. (翻譯) 汽車比馬快得多。

The car runs  the horse.

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