名詞性從句考點(diǎn)（主語(yǔ)，表語(yǔ)，賓語(yǔ)）

1，that 何時(shí)可以省略 1) that 在賓語(yǔ)從句大多數(shù)情況可以省略 (1)We regret (that) you did not find our prouct satisfactory. (2)We told the driver（ that） we were in a hurry.

2）在主語(yǔ)，表語(yǔ)，同位語(yǔ)從句中一般不能省略。

(1) That you want to be independent is only natural. (2)The advantage of DVD is that it gives you much better picture quality. (3)We should make people face the fact that a lot of people die from smoking every year.

2，if和whether 的區(qū)別： 1）在賓語(yǔ)從句中，if 和whether一般都可以使用.

在賓語(yǔ)從句中， 只能使用whether的情況： (1) 介詞之后 Your success or failure depends on whether you work hard.

(2) 緊跟or not 時(shí) She asked me whether or not he would come.

(3)接不定式 Can you tell me whether to go or to stay ?

(4) 主語(yǔ)從句，表語(yǔ)從句， 同位語(yǔ)從句只能用whether. Whether I will come depends on a number of things. The question is wether he will come to help.

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