分析 The experts predicted that it would be at least one century before the human beings defeated computers,but the results showed that nineteen years was enough.
解答 The experts predicted that it would be at least one century before the human beings defeated computers,but the results showed that nineteen years was enough.
根據(jù)句意"專家曾經(jīng)預(yù)測(cè)"以及"但結(jié)果表明"可知,這是對(duì)過(guò)去事實(shí)的敘述,所以用一般過(guò)去時(shí)即可.
本句為一個(gè)復(fù)雜的主從復(fù)合句,并兩次用到了賓語(yǔ)從句,以及before引導(dǎo)的時(shí)間狀語(yǔ)從句的運(yùn)用.a(chǎn)t least至少.
點(diǎn)評(píng) 對(duì)于復(fù)合句的靈活運(yùn)用更能體現(xiàn)出一個(gè)學(xué)生的能力,適當(dāng)?shù)脑谝粋(gè)句子中使用定語(yǔ)從句,賓語(yǔ)從句,介詞短語(yǔ)作狀語(yǔ)或者定語(yǔ)等結(jié)構(gòu).
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