新概念英語第二冊語法總結：賓語從句
何爲賓語從句?它是名詞性從句的一種。在主從複合句中充當賓語，位於及物動詞、介詞或複合謂語之後的從句。其實這是英語學習中一個不可或缺的語法知識點，它有哪些核心需要我們瞭解和學習的?來看看新概念英語第二冊是怎麼爲我們解答的。
1. that引導賓語從句時無含義，不充當成分，常省略。
that不引導介詞的賓語從句，至於except that, in that, save that, but that等是複合從屬連詞。
I know (that) you have met him.
Let's suppose that one day this happens to you.
在及物動詞和賓語從句之間常有間接賓語(指人)。例如：
I told him (that) he was wrong.
在少數動詞如：think, believe, suppose, expect, imagine, calculate, fancy, reckon, be supposed , seem, appear, feel as if, look as if, look like等後面的從句中的否定詞經常轉移到主句謂語動詞上，這叫否定前置/否定轉移。(hope“希望”, guess“認爲”後的賓語從句否定不前置。I hope not.“我希望不是那樣的”，是I hope so.的否定式。I don't hope so.是對hope的否定：“我不希望如此”。)如：
I don't think it will be very cold today.
I don't think you are right.
I don't believe he has finished his work.
注意：
①非必須否定轉移。若需要強調從句的否定時就不作轉移。
②不可把所有可否定轉移動詞的否定句都理解爲否定賓語從句，要根據句意或語境而定。
I don't think diplomacy is a field for private enterprise.
We didn't think we'd be this late.
③當think用在疑問句中，或主句中的謂語動詞與狀語連用，或主句中的謂語動詞被do強調時，不能否定轉移。
Why do you think we can't change your note?
I do believe Tom never tells a lie.
They still didn't believe that the food would come.
I can't believe that they are married.
④否定轉移多用在主句動詞爲一般現在時的情況。
主句動詞爲一般過去時、過去完成時、過去進行時、現在完成時、現在完成進行時，或主句動詞與情態動詞連用，就不能否定轉移。此時若主句動詞爲否定，應考慮是否是對主句動詞的否定。
I had thought that he would not come.
我已經想到了他不能來了。
⑤當賓語從句中有no, never, hardly, not at all, not a bit, gh, can't help doing等時不能否定轉移。
I think I can't help laughing if I see it.
I believe he never tells a lie.
許多帶賓語補足語的句子要用it作形式賓語，而把賓語從句置於句尾。
We think it wrong that he told a lie to everyone.
We thought it a pity that she should have missed the chance.
2. whether, if引導賓語從句：表示“是否”可互換，口語中常用if。
He asked if she would come.
注意下列情況下whether不可用if換：
1)引導主語從句置於句首時。
2)whether後沒有單詞間隔而直接跟or not時。
I don't know whether or not he will come.
3) whether從句作介詞賓語時。
They are talking about whether he will win the game.
Everything depends on whether you agree with us.
4)whether後接不定式時。
I don't know whether to attend the meeting.
5)動詞discuss, decide的賓語從句時。
3. 連接代詞what, who, whose等引導的賓語從句。
Tell me what you want.
Do you know who will come at the meeting?
注意：who, whom按照傳統語法，從句中who所取代的名詞如果是賓語應用賓格whom，但在口語中常用who，如：
Do you know whom (who) he will invite?
①whose, which, what三個詞都帶有形容詞性質。whose表示所有，意爲“誰的”;which意爲“哪一個”，what意爲“什麼”。如：
Whose book it is not important.
Please tell me which school you want to go.
He didn't know what time it was.
②一般說來，which指的是在一個具體的、較明確的、有限的、較小範圍;而what則指較廣的或不明確的範圍。如：which food，說話人一般指眼前的或明確範圍的幾種food;what food則指許多food，而且說話人心中沒有數。
I don't know which / what food you want.
如果範圍較大或者沒有什麼範圍，最好用what food。
4. 連接副詞when, where, why, how引導的賓語從句。
I don't know when the meeting will be held.
Please tell me where I can find Tom.
He explained to me why he was absent from the meeting.
Can you tell me how I can get to the post office?
5. 可用whatever, whoever, whomever, whenever, wherever等引導賓語從句。
Please write down whatever he is saying.
I don't know whoever will come.
I'll do whatever you ask me to.
6. 表示愛憎情感的動詞，如：enjoy, hate, love, like, dislike, don't mind, resent, appreciate(感激)等以及某些介詞結尾的短語動詞如：count on, depend on, rely on, see to, look forward to, be fond of, feel like, see to等後，即使沒有賓補也要先接形式賓語it，再接賓語從句。
I like it when she smiles at me.
I love it when you sing.
I hate it if I am spoken to loudly in public.
除了but, besides, except, in, save, beyond六個介詞後跟that引導的賓語從句外，其他介詞都不能。in that是“因爲”的意思，其餘五個與that搭配都是“除了……”。
賓語從句的內容就介紹這麼多，如果你想系統學習新概念英語這套教材，歡迎來網校，選擇新概念相關課程，相信老師們的精彩講授會幫助到大家的英語學習。希望大家都能明白，學習是一場持久的戰役，只有堅持不懈的人才能到達勝利的彼岸。
