预测一：that 引导的名词性从句
名词性 that- 从句在句中能充当主语、宾语、表语、同位语和形容词宾语。例如：
主语：That he is still alive is sheer luck. 他还活着全靠运气。
宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要去伦敦。
表语：The fact is that he has not been seen recently. 事实是近来谁也没有见过他。
同位语：The fact that he has not been seen recently disturbs everyone in his office.
近来谁也没有见过他，这一情况令办公室所有人都不安。
形容词宾语：I am glad that you are satisfied with your job. 你对工作满意，我感到很高兴。
预测二：if，whether 引导的名词性从句
(1)if，whether 在从句中不担任任何成分，表示 “ 是否 ”。选择型疑问从句由关联词 if/
whether...or 或 whether...or not 构成。例如：
I don’t care whether you like the plan or not. 我不在乎你是否喜欢该计划。
(2)whether 引导主语从句时，既可以直接位于句首，也可以位于句末;当 it 作形式主语
时，主语从句放在后面用 whether 和 if 均可。例如：
Whether she comes or not makes no difference. 她来不来都没有关系。
It is a different matter whether (if) we need it. 我们需不需要它是另外一回事。
(3)在表语从句和同位语从句中常用 whether 引导不用 if。例如：
The question is whether it’s worth trying. 问题是值不值得一试。
(4)在宾语从句中，当表示 “ 是否 ” 时，whether 与 if 可以互换，但如果从句中有 or not
时只能用 whether 引导。例如：
I didn’t know whether/if he would attend the concert. 我并不知道他是否会参加音乐会。
I don’t know whether he will come or not. 我不知道他是否会来。
(5)whether 引导的宾语从句可作介词的宾语，而 if 则不能。例如：
It all depends on whether they will support us. 这完全取决于他们是否支持我们。
预测三：特殊疑问词 what 引导名词性从句
what 可引导主语从句、宾语从句和表语从句。它引导的名词性从句有两个意思：一表示 “ 什么 ”，带有疑问意味;二表示 “…… 所的 ……”，what=the thing that。what 引导名词性从句时也可用作限定词，其后修饰名词。例如：I don’t know what you want. 我不知道你想要什么。
预测四：that 引导的同位语从句和 that 引导的定语从句的区别that 引导同位语从句时，应放在某些抽象名词 idea，belief, conclusion，impression，fact，
news，idea，thought 等后，对前面的名词起补充说明的作用，that 在从句中不充当任何成分，
因此 that 引导的同位语从句是完整的，不缺任何成分。例如：
The news that our football team won the match was encouraging.
我们足球队赢得了比赛的消息令人鼓舞。(同位语从句，不缺任何成分)
that引导定语从句时，that一方面起引导定语从句的作用，另一方面在定语从句中充当主语、
宾语或表语。因此，that 引导的定语从句的成分是残缺的。例如：The news that we heard on the radio was not true.
我们在收音机里听到的那则消息不是真的。(定语从句，缺少宾语)
1. I am impressed with China’s commitment to its climate goals, evidenced by the fact we are
sure of ______ China has met its 2020 targets three years ahead of schedule.
A. that
B. which
C. what
D. where
2. In the past, ______ didn’t make much of a difference to your success ______ you had a good
family background.
A. that; if
B. it; whether
C. that; whether
D. it; if
3. Their request will be discussed at tomorrow’s meeting ______ the pay should be raised.
A. which
B. when
C. where
D. that
4. You can only be sure of ______ you have at present; you cannot be sure of something ______
you might get in the future.
A. that; what
B. what; /
C. which; that
D. /; that
5. With your help, there is no doubt ______ our plan is meant for ______ will work out
successfully.
A. what; that
B. whether; that
C. that; whether
D. that; what
