專升本英語名詞性從句是經(jīng)??嫉降闹R點之一,名詞性從句有主語從句、表語從句、同位語從句等,接下來庫課小編要給大家分享的是專升本英語主語從句講解,僅供考生參考。
主語從句
做句子主語的從句叫主語從句。主語從句通常由從屬連詞that,whether,if和連接代詞what,who,which,whatever,whoever以及連接副詞how,when,where,why等詞引導。that在句中無詞義,只起連接作用;連接代詞和連接副詞在句中既保留自己的疑問含義、又起連接作用,在從句中充當從句的成分。
1. that引導
That he is still alive is a wonder. 他還活著,真是奇跡。
That we shall be late is certain. 我們要晚了,這是確定無疑的。
That he should have ignored the working class was natural. 他忽視工人階級是很自然的。
That she is still alive is a consolation. 她還活著是使人感到寬慰的。
That she became an artist may have been due to her father’s influence. 她成為畫家可能是受她父親的影響。
That you are coming to London is the best news I have heard this long time. 你將來倫敦是好久以來我聽到的最好消息。
That she was chosen made a tremendous stir in her village. 她被挑選上,在她村子里引起很大轟動。
2. whether引導
Whether it will do us harm remains to be seen. 是否對我們有害還要看一看。
Whether they would support us was a problem. 他們是否會支持我們還是一個問題。
3. 連接代詞引導
Whoever is top from wins the game when two matched players meet. 兩強相爭勇者勝。
Whichever (of you) comes in first will receive a prize. 無論(你們)誰先到都可以得獎。
Whichever you want is yours. 你要哪個,哪個就是你的。
4. 連接副詞引導
When we arrive doesn’t matter. 什么時候到?jīng)]有關系。
How this happended is not clear to anyone. 這件事怎樣發(fā)生的,誰也不清楚。
How many people we are to invite is still a question. 邀請多少人還是一個問題。
5. 關系代詞型what引導
What I want to know is this. 我想知道的就是這一點。
What’s done is done. 事已成定局。
What he says is not important. 他說的話并不重要。
What I am telling you is mere impressions. 我和你說的都不過是一些印象而已。
What you need is a good-sized canvas bag. 你需要的是一個比較大的帆布袋。
6.主語從句與形式主語it
有時為了考慮句子平衡,通常在主語從句處使用形式主語it,而將真正的主語從句移至句末。這分三種情況:
(1) 對于以連詞that引導的主語從句,通常用形式主語代主語從句:
It’s a pity that he didn’t come. 很遺憾他沒來。
It is important that he should know about this. 他必須知道此事。
It’s vital that we be present. 我們出席是至關重要的。
It was intended that you be the candidate. 大家的意圖是讓你當候選人。
It is appropriate that this tax be abolished. 廢除這個稅是恰當?shù)摹?/span>
It’s unfair that so many people should lose their jobs. 竟有這么多人失業(yè)這是不公平的。
It’s amazing that she should have said nothing about it. 她竟未談及此事令人驚訝。
It’s unthinkable that they should deny my request. 他們竟然拒絕我的請求,這是不可思議的。
That they should refuse to sign the petition required great courage. 他們拒絕在請愿書上簽字這是需要很大勇氣的。
(2) 對于以連接代詞(副詞)引導的主語從句,可以使用形式主語代主語從句,也可直接在句首使用主語從句:
Whether they would support us was a problem. 他們是否會支持我們還是一個問題。
It was a problem whether they would support us. 他們是否會支持我們還是一個問題。
It remains to be seen whether it will do us harm or good. 它對我們是利是害,還得看看再說。
(3) 對關系代詞型what引導的主語從句,通常直接將主語從句放在句首。如:
What we need is money. 我們需要的是錢。
What I want to know is this. 我想知道的就是這一點。
如果句子是疑問句,則必須用帶形式主語it的結構:
Is it true that he is the girl’s father? 他是那女孩的父親,是真的嗎?
How is it that you are late again? 你怎么又遲到了?
7.連詞that的省略問題
引導主語從句的連詞that 有時可省,有時不能省,其原則是:
若that引導的主語從句直接位于句首,則that不能省略;若that引導的主語從句位于句末,而在句首使用了形式主語it,則that可以省略。
如:That you didn’t go to the talk was a pity. 很遺憾你沒去聽報告。(that不可省)
It was a pity (that) you didn’t go to the talk. 很遺憾你沒去聽報告。(that可省)
8. 另外注意
在主語從句中用來表示必須、理應如此、建議、要求等語氣時,謂語動詞要用虛擬語氣“(should) +do”。
常用的句型有:
It is necessary (important, natural, strange, etc.) that …
It is suggested (requested, proposed, desired, etc.) that…
以上就是庫課小編整理的全部資訊,更多2023年專升本考試政策及信息考生可以到庫課網(wǎng)校APP了解,也可以在庫課網(wǎng)校APP或官網(wǎng)免費試聽2023年的專升本網(wǎng)課。