高中英語名詞性從句的知識點(diǎn)詳解
高中英語名詞性從句的知識點(diǎn)詳解
名詞性從句的功能相當(dāng)于名詞詞組，是學(xué)生需要掌握的知識點(diǎn)，下面學(xué)習(xí)啦的小編將為大家?guī)砀咧杏⒄Z的名詞性從句的知識點(diǎn)介紹，希望能夠幫助到大家。
高中英語名詞性從句的知識點(diǎn)
一. 主語從句
主語從句是在復(fù)合句中充當(dāng)主語的從句，通常放在主句謂語動(dòng)詞之前或由形式主語it代替，而本身放在句子末尾。
1. It 作形式主語和it引導(dǎo)強(qiáng)調(diào)句的比較
It 作形式主語代替主語從句，主要是為了平衡句子結(jié)構(gòu)，主語從句的連接詞沒有變化。而it引導(dǎo)的強(qiáng)調(diào)句則是對句子某一部分進(jìn)行強(qiáng)調(diào)，無論強(qiáng)調(diào)的是什么成分，都可用連詞that。被強(qiáng)調(diào)部分指人時(shí)也可用who/whom。例如：
a) It is a pity that you didn’t go to see the film. 你不去看那場電影真可惜。
b) It doesn’t interest me whether you succeed or not. 我對你成功與否不感興趣。
c) It is in the morning that the murder took place. 謀殺案是在早上發(fā)生的。(強(qiáng)調(diào)句型)
d) It is John that broke the window. 是John打碎的窗戶。(強(qiáng)調(diào)句型)
2. 用it 作形式主語的結(jié)構(gòu)
(1) It is + 名詞 + 從句
It is a fact that … 事實(shí)是…
It is an honor that …非常榮幸
It is common knowledge that …是常識
(2) It is + 形容詞 + 從句
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3) It is + 不及物動(dòng)詞 + 從句
It seems that… 似乎…
It happened that… 碰巧…
It appears that… 似乎…
(4) It + 過去分詞 + 從句
It is reported that… 據(jù)報(bào)道…
It has been proved that… 已證實(shí)…
It is said that… 據(jù)說…
3. 主語從句不可位于句首的五種情況：
(1)if 引導(dǎo)的主語從句不可居于復(fù)合句句首。
(2)It is said /reported…結(jié)構(gòu)中的主語從句不可提前。例如：
正確表達(dá)：It is said that President Jiang will visit our school next week.
錯(cuò)誤表達(dá)：That President Jiang will visit our school next week is said.
(3)It happens/occurs…結(jié)構(gòu)中的主語從句不可提前。例如：
正確表達(dá)：It occurred to him that he failed in the examination.
錯(cuò)誤表達(dá)：That he failed in the examination occurred to him.
(4)It doesn’t matter how/whether …結(jié)構(gòu)中的主語從句不可提前。例如：
正確表達(dá)：It doesn’t matter whether he is wrong or not.
錯(cuò)誤表達(dá)：Whether he is wrong or not doesn’t matter.
(5)含主語從句的復(fù)合句是疑問句時(shí)，主語從句不可提前。例如：
正確表達(dá)：Is it likely that it will rain in the evening?
錯(cuò)誤表達(dá)：Is that will rain in the evening likely?
4. what 與that 在引導(dǎo)主語從句時(shí)的區(qū)別
what 引導(dǎo)主語從句時(shí)在句時(shí)在從句中充當(dāng)句子成分，如主語.賓語.表語，而that 則不然。例如：
a) What you said yesterday is right.
b) That she is still alive is a consolation
二.賓語從句
賓語從句就是在復(fù)合句中作賓語的名詞性從句，通常放在主句謂語動(dòng)詞 (及物動(dòng)詞) 或介詞之后。
1. 作動(dòng)詞的賓語
(1) 由that引導(dǎo)的賓語從句(that通常可以省略), 例如：
I heard that be joined the army. 我聽說他參軍了。
(2) 由what, whether (if) 引導(dǎo)的賓語從句，例如：
a) She did not know what had happened.她不知道發(fā)生了什么。
b) I wonder whether you can change this note for me. 我想知道你是否能幫我改一下筆記。
(3) 動(dòng)詞+間接賓語+賓語從句。例如：
She told me that she would accept my invitation. 她對我說她會接受我的邀請。
2. 作介詞的賓語，例如：
Our success depends upon how well we can cooperate with one another. 我們的成功取決于我們之間的合作。
3. 作形容詞的賓語，例如：
I am afraid (that) I’ve made a mistake. 我恐怕我已經(jīng)犯了一個(gè)錯(cuò)誤。
注意：that 引導(dǎo)的從句常跟在下列形容詞后作賓語：anxious, aware,
certain, confident, convinced, determined, glad, proud, surprised, worried,
sorry, thankful, ashamed, disappointed, annoyed, pleased, hurt, satisfied,
高中英語主語從句的知識點(diǎn)
主語從句是在復(fù)合句中充當(dāng)主語的從句，通常放在主句謂語動(dòng)詞之前或由形式主語it代替，而本身放在句子末尾。
1. It 作形式主語和it引導(dǎo)強(qiáng)調(diào)句的比較。
It 作形式主語代替主語從句，主要是為了平衡句子結(jié)構(gòu)，主語從句的連接詞沒有變化。而it引導(dǎo)的強(qiáng)調(diào)句則是對句子某一部分進(jìn)行強(qiáng)調(diào)，無論強(qiáng)調(diào)的是什么成分，都可用連詞that。被強(qiáng)調(diào)部分指人是也可用who/whom。
例如：
It is a pity that you didn’t go to see the film.
It doesn’t interest me whether you succeed or not.
It is in the morning that the murder took place.
It is John that broke the window.
2. 用it 作形式主語的結(jié)構(gòu)。
(1) It is +名詞+從句
It is a fact that … 事實(shí)是…
It is an honor that …非常榮幸
It is common knowledge that …是常識
(2) it is +形容詞+從句
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3) it is +不及物動(dòng)詞+從句
It seems that… 似乎…
It happened that… 碰巧…
(4) it +過去分詞+從句
It is reported that… 據(jù)報(bào)道…
It has been proved that… 已證實(shí)…
3. 主語從句不可位于句首的五種情況。
(1) if 引導(dǎo)的主語從句不可居于復(fù)合句句首。
(2) It is said ， (reported) …結(jié)構(gòu)中的主語從句不可提前。
例如：
It is said that President Jingo will visit our school next week. (right)
That President Jiang will visit our school next week is said. (wrong)
(3) It happens…， It occurs… 結(jié)構(gòu)中的主語從句不可提前。
例如：
It occurred to him that he failed in the examination. (right)
That he failed in the examination occurred to him. (wrong)
(4) It doesn’t matter how/whether …結(jié)構(gòu)中的主語從句不可提前。
例如：
It doesn’t matter whether he is wrong or not. (right)
Whether he is wrong or not doesn’t matter. (wrong)
(5) 含主語從句的復(fù)合句是疑問句時(shí)，主語從句不可提前。
例如：
Is it likely that it will rain in the evening? (right)
Is that will rain in the evening likely? (wrong)
4. What 與that 在引導(dǎo)主語從句時(shí)的區(qū)別。
What 引導(dǎo)主語從句時(shí)在句時(shí)在從句中充當(dāng)句子成分，如主語.賓語.表語，而that 則不然。
例如：
1) What you said yesterday is right.
2) That she is still alive is a consolation.
賓語從句
賓語從句就是在復(fù)合句中作賓語的名詞性從句，通常放在主句謂語動(dòng)詞(及物動(dòng)詞)或介詞之后。
1. 作動(dòng)詞的賓語。
(1) 由that引導(dǎo)的賓語從句(that 通常可以省略)
例如：
I heard that be joined the army.
(2) 由what， whether (if) 引導(dǎo)的賓語從句
例如：
1) She did not know what had happened.
2) I wonder whether you can change this note for me.
(3) 動(dòng)詞+間接賓語+賓語從句
例如：
She told me that she would accept my invitation.
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