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當(dāng)狀語(yǔ)從句的主語(yǔ)和主句的主語(yǔ)一致時(shí),從句可以將主語(yǔ)和be動(dòng)詞簡(jiǎn)化掉。常用于以下幾種情形:

1. 連詞+形容詞

As (he was) young, he learned how to ride a bike.他小時(shí)候就學(xué)會(huì)了騎自行車。

Whenever (she is) free, she often goes shopping.她有空就去逛商店。

Work hard when (you are) young, or you'll regret.少壯不努力,老大徒傷悲。

2. 連詞+現(xiàn)在分詞

As (she was) walking along the river bank, she was singing a pop song.她沿著河堤邊走邊唱著流行歌曲。

Although (he is) doing his best in maths these days, he has still got no good marks.盡管近來(lái)他一直在學(xué)數(shù)學(xué),但他仍然沒(méi)有取得好成績(jī)。

3. 連詞+名詞

While (he was) a young boy, he was always ready to help others.他在孩子時(shí)代就樂(lè)于助人。

Although (he was) a farmer, now he is a famous director.盡管他曾是個(gè)農(nóng)民,但現(xiàn)在他是位著名的導(dǎo)演了。

4. 連詞+介詞短語(yǔ)

She looked anxious as though (she was) in trouble.她看上去很焦急,好像遇到了麻煩。

He had mastered the English language before (he was) in the USA.他到美國(guó)之前就懂英語(yǔ)了。

注意:當(dāng)從句主語(yǔ)和主句主語(yǔ)不一致時(shí),從句部分要么用完全形式,要么用獨(dú)立主格結(jié)構(gòu)來(lái)表達(dá)。例如:

When the meeting was over, all the people went out of the meeting-room.當(dāng)會(huì)議結(jié)束時(shí),人們都走出了會(huì)議室。(=The meeting over, all the people went out of the meeting-room.)

5. 連詞+過(guò)去分詞

He won't go there with us unless (he is) invited.除非受到邀請(qǐng),否則他不會(huì)和我們一道去那里。

The concert was a great success than (it was) expected.這場(chǎng)音樂(lè)會(huì)出乎意料地取得了巨大成功。

6.?連詞+不定式

He stood up as if (he were) to say something.當(dāng)時(shí)他站起來(lái)好像要說(shuō)什么。

He wouldn't solve the problem even if (he were) to take charge.即使他來(lái)負(fù)責(zé),他也解決不了這個(gè)問(wèn)題。