名詞性從句指充當(dāng)名詞成分的從句,下分很多類型,是英語(yǔ)學(xué)習(xí)的重點(diǎn),可以說(shuō)搞懂了名詞性從句,你的英語(yǔ)水平就極大的提升了一個(gè)level,而主語(yǔ)從句則是名詞性從句非常重要的一種類別,所以這次小編就為大家?guī)?lái)關(guān)于主語(yǔ)從句的講解,快點(diǎn)來(lái)看看吧!

一. 概念:在句子中擔(dān)當(dāng)主語(yǔ)的從句就叫做主語(yǔ)從句,通常放在主句謂語(yǔ)動(dòng)詞之前或由形式主語(yǔ)it代替,而本身放在句子末尾。

主語(yǔ)從句使用陳述語(yǔ)序,其通常結(jié)構(gòu)為“引導(dǎo)詞 + 主語(yǔ) + 謂語(yǔ) + 其他成分", 但當(dāng)連接代詞同時(shí)充當(dāng)從句主語(yǔ)時(shí),其結(jié)構(gòu)為“連接代詞 + 謂語(yǔ) + 其他成分”。

二. 引導(dǎo)詞:

1. that引導(dǎo)

eg. That you are coming to London is the best news I have heard this long time.

2. whether引導(dǎo)

eg. Whether they would come to conference was a question.

3. 連接代詞引導(dǎo): who,whom, whose, what, which, whoever, whomever, whichever, whatever

eg. Whoever is top from wins the game when two matched players meet.

4. 連接副詞引導(dǎo): therefore, besides, otherwise, however, moreover, still, thus, meanwhile

eg. How this happended is not clear to anyone.

5. 關(guān)系代詞型what引導(dǎo)

eg. What shoked me was that she never wash her own clothes.

三. 形式主語(yǔ)it:

1. 對(duì)關(guān)系代詞型what引導(dǎo)的主語(yǔ)從句,可以使用形式主語(yǔ)。

eg. It is clear enough what he meant.

2. 如果句子是疑問(wèn)句,則必須用帶形式主語(yǔ)it的結(jié)構(gòu).

eg. Is it true that all of us need to to conference?

好了以上就是這次為大家?guī)?lái)的關(guān)于主語(yǔ)從句的知識(shí)點(diǎn)講解,大家都學(xué)得怎么樣呢?千萬(wàn)不要忘記之后的復(fù)習(xí)哦!