賓語從句
考察的三個(gè)要點(diǎn)：語序，時(shí)態(tài)，關(guān)聯(lián)詞。
1.定義：用作賓語的從句叫賓語從句。
2.構(gòu)成：關(guān)聯(lián)詞+簡單句。
3賓語從句的語序一定是陳述句語序。(who 作主語的從句本身就是陳述句語序)
4賓語從句在復(fù)合句中作主句的賓語，連接賓語從句的連詞有that(that在口語中常省略)。 whether，if，和連接代詞what， which， who， whom及連接副詞when， where， how， why。
He knew(that) he should study hard.
他知道他應(yīng)該努力學(xué)習(xí)。
Can you tell me which class you are in?
您能告訴我，您在哪一班嗎?
He asked me if he could come in，
他問我他是否能進(jìn)來。
5.引導(dǎo)賓語從句的關(guān)聯(lián)詞有三類：
(1)從屬連詞that.如：一般那情況下可以省略。
He told us that he felt ill.
I know he has returned.
注： that在引導(dǎo)賓語從句時(shí)也并不是任何情況下都可以省略。在以下情況下，that不能省略。
1.Everybody could see what happened and that Tom was frightened.
(and連接兩個(gè)賓語從句，that賓語從句放在and的后面時(shí)，that不能省略。)
2.I know nothing about him except that he is from the south.
(that引導(dǎo)的賓語從句作介詞賓語時(shí)，that不能省略。)
3.That he ever said such a thing I simply don’t believe.(that從句位于句首時(shí)，that不可省略。)
我簡直不相信他曾說過這樣的話。
(2)從屬連詞if/whether.如：
I doubt whether he will succeed.
I don’t know if you can help me.
(3)連接代詞who，whom，whose，what，which，whoever，whatever，
whichever
連接副詞 where，when，how，why.
Who or what he was，Martin never learned.
I wonder what he’s writing to me about.
I’ll tell you why I asked you to come.
注意
1.如果賓語從句后還有賓語補(bǔ)足語，則用it作形式賓語，而將賓語從句后置。
We thought it strange that Xiao Wang did not come yesterday.
He has made it clear that he will not give in.
2.某些形容詞或過去分詞后常接賓語從句，這類形容詞或過去分詞有sure，glad，certain，pleased，happy，afraid，surprised，satisfied等，連詞that可省略。

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