名词性从句考点（主语，表语，宾语）1，that 何时可以省略 1) that 在宾语从句大多数情况可以省略 (1)We regret (that) you did not find our prouct satisfactory. (2)We told the driver（ that） we were in a hurry.
2）在主语，表语，同位语从句中一般不能省略。
(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 的区别： 1）在宾语从句中，if 和whether一般都可以使用.
在宾语从句中， 只能使用whether的情况：(1) 介词之后 Your success or failure depends on whether you work hard.
(2) 紧跟or not 时 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) 主语从句，表语从句， 同位语从句只能用whether. Whether I will come depends on a number of things. The question is wether he will come to help.
名词性从句考点（主语，表语，宾语）1，that 何时可以省略 1) that 在宾语从句大多数情况可以省略 (1)We regret (that) you did not find our prouct satisfactory. (2)We told the driver（ that） we were in a hurry.
2）在主语，表语，同位语从句中一般不能省略。
(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 的区别： 1）在宾语从句中，if 和whether一般都可以使用.
在宾语从句中， 只能使用whether的情况：(1) 介词之后 Your success or failure depends on whether you work hard.
(2) 紧跟or not 时 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) 主语从句，表语从句， 同位语从句只能用whether. Whether I will come depends on a number of things. The question is wether he will come to help.
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