【正文】 名詞性從句講解 思維導圖（附練習題）定義：在句子中起名詞作用的句子叫名詞從句 (Noun Clauses). 名詞性從句包括主語,賓語,表語,同位語從句. ★ 名詞性從句中使用陳述句語序。 ① 從屬連詞that。 whether。 if (只起引導從句的作用，在從句中不做句子成分）② 連接代詞 what, whatever, who, whoever, whom, whomever, whose, which,等. 在從句 中做主語，賓語，表語，定語等句子成分。③ 連接副詞when, where, how, why, whenever, however, wherever等 在從句中做狀語成分。 引導名詞性從句的連接詞 2. 名詞性從句的連接詞選用原則：“缺什么就補什么” I know what he is talking about. (從句中缺賓語,指物) Do you know who he is? (從句中缺表語,指人) Where he will go is unknown. (從句中缺地點狀語) I’m sure that they will e tomorrow. (從句中什么都不缺) I don’t know which book I should choose. (從句中缺定語) 定義：充當主語功能的句子叫主語從句That she was chosen made a great stir (轟動) in her school. 注意: ①it作形式主語的that從句有以下四種不同的搭配關(guān)系：It + be +形容詞+ that從句 It is necessary / important that…. It + be + ed 分詞+ that從句 It is universally acknowledged that../ It is known that…It + be +名詞+ that從句 It is mon knowledge/ a fact that…　 ……是常識/事實It +不及物動詞+ that分句 It happens that…碰巧.. / It occurs to … 突然想起…… 主語從句 ②It 作形式主語和it引導強調(diào)句的比較 強調(diào)句： It is in the morning that the murder took place. (去掉該結(jié)構(gòu)后,句子成分完整) 主語從句：It was a pity that you shouldn’t go to see the film. （在句子中作主語成分）③whatever /whichever/ whoever引導主語從句的區(qū)別 Ⅰ Whatever 是what的強調(diào)形式表示“無論什么”相當于 anything that… Whatever / Anything that she does is wrong.~ever Ⅱ whoever 是who的強調(diào)形式，表示‘無論誰’ 相當于anyone who…. Whoever / Anyone who walks around in such a heavy rain will catch a cold. Ⅲ whichever ‘無論哪個。無論哪些’,既指人,又指物. 可修飾名詞與of 連用 Whichever book you borrow doesn’t matter to us. Whichever of us fulfills his task will lend a hand to others. 定義：在復(fù)合句中充當賓語功能的句子叫賓語從句We can learn what we didn’t know.We find it necessary that we (should) practice English every day. ★某些作表語的形容詞，如sure, happy, glad, certain等之后可帶賓語 從句 I am glad that you can e and help me. 注意：① wish/would rather后的賓語從句中要用虛擬語氣。 I wish I had finished my homework yesterday. I’d rather you had been there yesterday ② 在表示建議,命令, 請求的詞后面的賓語從句當中用should + V, should可以省略 His pale face suggested that he was ill so I suggested that he should go to see the doctor. He insisted that he was innocent and insisted that he should be set free. 賓語從句 ③ 注意it作形式賓語的結(jié)構(gòu) We all thought it a pity that we had missed the lesson. I took it for granted that they were not ing. ④ that一般不接介詞賓語，偶爾可作except, in的賓語；其它介 詞后面需用it作形式賓語 He differs from his roommates in that he devoted his spare time to reading. He knows nothing about Jim except that he is from London. You can depend on it that he will help you in time