宾语从句中that什么时候可以省略？

Answer 1

1.that引导宾语从句无（精）意义,不充当句子成分常（锐）省略.但下列情况除外：（1）介词宾语从句的that不省略
（2） and连接的几个从句,第二个从句以后的从句的that不省略.He told me that he had two sons and that they both had gone to college.（3）在动词+it+宾语补足语+宾语从句结构中,that不省略.I heard it said that he had gone abroad We found it impossible that he could finish it in such a short time
2.Whether ,if 引导宾语从句：两词可互换,但是下列情形除外：
（1）whether从句中有or not
（2）whether从句做介词宾语 Everything depends on whether you agree with us
3.许多带复合宾语的句子,宾语从句经常移到句子后部,而用it做形式宾语.结构常是：主语+动词+it+形容词/名词等宾语补足语+宾语从句 We think it wrong that he told a lie to everyone
4.宾语从句的语序要用陈述句语序
False:He is wondering when can he finish this difficult job.Right:He is wondering when he can finish this difficult job.
B 有时候可以用it 作形式宾语,而把真正的宾语从句放在后面.
Bad:I thought that he could finish this job in just two hours impossible.
Good:I thought it impossible that he could finish this job in just two hours.
Bad:He left whether we should continue this project to my judgment.Good:He left it to my judgment whether we should continue this project.
C 带有宾语从句的复合句的否定形式一般是否定主句.
Bad:I think he doesn’t like the English teacher.
Good:I don’t think he likes the English teacher.
D 主句一般过去时态,从句也要用过去时态；具体细节请看第一部分.False:He wanted to know why he is crying in the corner.
Right:He wanted to know why he was crying in the corner.bu
哪些宾语从句不可以省略引导词that
1当that做learn,suggest,explain,agree,wonder,prove,mean,state,feel,hold等动词的宾语时;
2当宾语从句较长时;
3当主语状语置于主句尾,宾语从句之前时;
4当主语谓语动词(包括非谓语动词)与宾语从句之间有插入语时;
5当一个动词带有两个或两个以上宾语从句时,此时第一个that可以省略,第二个that不可以省略;
6当宾语从句中的主语是this,that或this,that做主语的定语时;
7当宾语从句是双宾语中的直接宾语时;
8当宾语从句的主语是非谓语动词或主语从句时;
9当主语中的谓语动词是固定词组时;
10当宾语从句有it做其先行词时;
11在直接引语中,转述分句把宾语从句隔开时.

Answer 2

解释如下
一般在非正式文体,宾语从句中that都可以省略。
例如，
I think (that)he’ll be all right in a few days.
Current trends indicate (that)transportation is becoming cleaner,faster and safer.
但是有些情况则不能省略。
and连接两个宾语从句，that宾语从句放在and的后面时，that不能省略。
例如1． Everybody could see what happened and that Tom was frightened.

大家都会看出所发生的事情并知道Tom非常害怕。

2．that引导的宾语从句作介词宾语时，that不能省略。
例如I know nothing about him except that he is from the south.

对他我一无所知，只知道他是南方人。

3．that从句位于句首时，that不可省略。
That he ever said such a thing I simply don’t believe.

我简直不相信他曾说过这样的话。

4． We decided, in view of his special circumstances, that we would admit him for a probationary period. (主句谓语动词与that从句之间有插入语，that不可省略。)

Answer 3

that引导宾语从句无意义,不充当句子成分常省略.但下列情况除外：
（1）介词宾语从句的that不省略
（2） and连接的几个从句,第二个从句以后的从句的that不省略.He told me that he had two sons and that they both had gone to college.
（3）在动词+it+宾语补足语+宾语从句结构中,that不省略.I heard it said that he had gone abroad We found it impossible that he could finish it in such a short time