英語從句可以分為名詞性從句、定語從句和狀語從句三大類,今天,小編為同學(xué)們帶來了相當(dāng)豐富的與英語從句相關(guān)的語法,一起來看看吧!

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名詞性從句(主語從句、表語從句、賓語從句、同位語從句)

主語從句、表語從句、賓語從句和同位語從句在復(fù)合句中的充當(dāng)?shù)某煞趾推涿Q相同,分別作主句的主語、表語、賓語和同位語。上述這四種從句均被稱為名詞性從句。所有的名詞性從句均不能用逗號分開,并且它們都用相同的關(guān)聯(lián)詞,關(guān)聯(lián)詞如下:

① 主從連詞:that (無意義), whether (是否), if (是否)(在句子中不充當(dāng)任何成分)

② 連接代詞:who (誰), whom (誰), whose (誰的), what (什么), which (哪一個)

③ 連接副詞:when (什么時候), where (什么地方), how (怎樣), why (為什么)

主從連詞只起連接作用,連接代詞和連接副詞除了起連接作用外,還充當(dāng)從句某一個成分。另外,可以用whatever, whichever, whoever, who(m)ever等連接代詞引導(dǎo)名詞性從句,來加強(qiáng)語氣。

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(一)主語從句(subject clause)

在主句中用作主語的主謂結(jié)構(gòu)稱之為主語從句。

例如:

That he will come to the discussion is certain.他來參加討論是確定的。

That the moon moves round the earth is well known to all of us.月球繞地球轉(zhuǎn)動,這是我們大家都熟知的。

When the meeting is to be held has not yet been decide. ?會議什么時候召開還沒有決定。

主語從句放在句首,句子常常顯得比較笨重,因此通??梢园裪t放在句首,作形式主語,而將主語從句放在后面。例如上面的句子可以分別改寫為:

It is certain that he will come to the discussion.

It is well known to all of us that the moon moves round the earth.

It has not yet been decide when the meeting is to be held.

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下面再舉一些例句:

What they are after is profit.他們追求的是利潤。

That he is still alive is sheer luck.他還活著全靠運(yùn)氣。

Who did the work is unknown.誰干了這工作無人知道。

Whether she will join us won’t make too much difference.

It won’t make too much difference whether she will join us. 她是否參與我們的活動無關(guān)緊要。

Which way is more effective is still a question.

It is still a question which way is more effective. ??哪種辦法效率更高還是個問題。

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(二)表語從句(predicative clause)

在主句中擔(dān)當(dāng)表語的主謂結(jié)構(gòu)稱之為表語從句。

One idea is that fish is the best brain food.有一種看法認(rèn)為魚是最好的補(bǔ)腦食品。

The problem is where we can hold our meeting.問題是我們可以在哪兒舉行會議。

My question is how information is stored in the long-term memory.我的問題是信息是怎樣儲存在長期記憶中的。

That is what he really wants.那就是他真想要的東西。

It seems that everything goes smoothly.似乎一切都進(jìn)行得很順利。

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