分析 本文講述的是環(huán)境污染的問題.
科學家們到鄉(xiāng)村看到嚴重的污染,從空氣到河流都被嚴重的污染了.他們說服政府通過了保護環(huán)境的法律,保持大自然的平衡.現(xiàn)在一切都改變了,鳥兒在歌詞,樹木和花草在生長.
解答 A group of scientists were planning to go to∧countryside to do a scientific research in order to find out that whether the environment of the country had∧polluted.On arrival,they started to check the air and water.To our surprise,they found how terribly the situation was.They couldn't see the serious pollution.Look into the cause,they persuade the government to pass the law to protect environment and kept the balance of nature.Now everything has changed.Birds are singing while tree and grass are waving.
解析:
1.countryside 前加the.考查冠詞.表示"鄉(xiāng)下"用the countryside.
2.去掉that.考查賓語從句的引導詞.whether 引導賓語從句the environment of the country had polluted
表示"是否環(huán)境已經(jīng)被污染",所以去掉that.
3.polluted前加been.考查被動.主語the environment of the country 和謂語動詞polluted 之間是被動關系,所以polluted前加been.
4.our改為their.考查代詞. 和上句的主語they呼應用their.
5.terribly改為terrible.考查形容詞.做the situation was的表語用形容詞terrible,表示"他們知道情況使多么惡劣".
6.couldn't 改為could.考查邏輯關系.根據(jù)上句表示"他們知道情況使多么惡劣",可知本句表示"他們能夠看到嚴重的污染",所以應該是肯定句,couldn't 改為could.
7. Look改為 Looking.考查非謂語動詞.Look into the cause做伴隨狀語,和主語they 之間是主動關系,所以用現(xiàn)在分詞 Looking.
8. persuade 改為persuaded.考查謂語動詞的時態(tài).本句講述的是過去的事,所以謂語動詞用過去式persuaded.
9.kept改為keep. 考查并列一致關系.和to pass the law to protect environment 并列,做目的狀語,因詞用kept 的原形keep.
10.tree改為trees.考查名詞.tree是可數(shù)名詞,本句表示"樹木"所以用復數(shù)trees.
點評 考查短文改錯.
被動語態(tài)的基本時態(tài)變化
被動語態(tài)由"be+及物動詞的過去分詞"構成,be隨時態(tài)的變化而變化.以do為例,各種時態(tài)的被動語態(tài)形式為:
1)am/is/are+done (過去分詞) 一般現(xiàn)在時
Visitors are requested not to touch the exhibits.
2)was/were done 一般過去時
I was given ten minutes to decide whether I should reject the offer.
進行時態(tài)的被動語態(tài)加being
3)am/is/are being done 現(xiàn)在進行時
A new cinema is being built here.
4)was/were being done 過去進行時
A meeting was being held when I was there.
完成時的被動語態(tài)加been
5)has/have been done 現(xiàn)在完成時
All the preparations for the task have been completed,and we're ready to start.
6)had been done 過去完成時
By the end of last year,another new gymnasium had been completed in Beijing.
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