二、表语从句 Predicative Clause
Reason 的用法：
如：The reason why／that he is late is that he met an accident.
Reason 作主语的表语从句后面连接词只能用 that．
练习：
The reason _________ I’m writing is to tell you about my examination results.
A. because B. as C. why D. for
三、宾语从句 Object Clause
（1）介宾
1．that 常只作如下介词宾语
in that 表原因，意为“在于”
如：Men differ from brutes in that they can speak and think．
练习：
Advertising is distinguished from other forms of communication _________ the advertiser pays for the message to be delivered.
A. in that B. in which
C. in order that D. on the way
except／save／besides／beyond that，意为“除了”
but that 要用虚拟，意为“要不是”。
2．V+prep+it+that 句型
如：I’ll see to it that everything is ready on time．
See to it that=make sure that
You may depend on it that they will support you．
（2）形式宾语 Form Object it
1．V+it+adj／Ved／noun+that 句型
如：I consider it true that the sun rises in the east．
We heard it said that she had gone abroad．
2．惯用型
①owe it to sb．that
如：We owe it to Chairman Mao that we are leading a happy life now．
②take it for granted that=assume sth．to be true
如：I take it for granted that you have read this book．
③make it clear that
如：Mary made it clear that she was unwilling to marry Tom．
（3）否定转移
如：I don’t think she is a good student．

五、引导词
（1）从属连词 Subordinate Conjunction
Doubt 后宾从的引导词
肯定句：由whether／if引导、
如：I doubt if／whether it is true．
否定句／疑问句：由that引导、
如：I do not doubt that our team will win．
（2）连接代词 Conjunctive Pronoun
what，which，who，whom、whose，whatever、
（3）连接副词 Conjunctive Adverb
why、where、when、how
练习：
I don’t care __________.
A. if or not he will win B. whether or if he will win
C. whether he will not win D. whether he will win or lose