5. 同位语从句

(1) that引导的同位语从句
We are very excited at the news that our Chinese athletes won many gold medals.
听到我们中国运动员赢得了许多金牌的消息我们非常激动。
A new idea occurred to him that it could be done in a very simple way.
他想出一个新主意：这件事可以用一种很简单的方法完成。
(2) 连接代词和连接副词引导的同位语从句
同位语从句通常由that引导，但随着与其同位的名词的不同，也可由whether, when, which, who, how, what,why等引出。如：
The question , whether we need it , has not yet been considered
我们是否需要它，这个问题还没有被考虑。
I have no idea when she will be back.
我不知道她何时回来。
I have no idea which dictionary is hers.
我不知道哪本词典是她的。
(3) 同位语从句的位置
同位语从句有时不是紧跟在有关的名词后面，而是被其他的词隔开了。如：
We’ve just heard a warming on the radio that a typehoo may be on its way .
我们刚从广播里听到一则气象警报，说有一股台风即将到来。
The question came up at the meeting whether weo had enough meoney for our research.
会上提出了我们的研究经费是否够的问题。

6. 形容词补语从句

 (1) that引导的形容词补语从句
We are certain that he will get over his illness.
我们相信他会康复的。
Ralph was disappointed that he didn?t finish the work on time.
拉尔夫没有按时完成工作，感到很失望。
但要注意：引导形容词补语从句的that可以省略。
(2) 连接代词、连接副词和连接词whether引导的形容词补语从句
I’m not certain whether the train will arrive on time.
我没有把握火车是否会准点到达。
The beggar was too sleepy to be aware how cold it was.
这个乞丐太困了，没意识到天气有多冷。

7. 名词性从句中的省略

1. 以it作形式主语而将that引导的主语从句置于句末时,that通常可以省略。
It is only too true (that) she cannot be relied upon.她不可靠竟是真的。
It is odd (that) the bike has disappeared.奇怪自行车不见了。
2. 当that引导较短的表语从句或宾语从句时,that一般可以省略。
The cause that I left the company is (that) the wage is very low.我离开公司的原因是工资太低了。
The fact is (that) she didn't finish the homework.事实是她没完成家庭作业。
3. 宾语从句前的介词有时可以省略。
Ｙou can have no idea (of) what he said. 你根本想象不到他说了什么。
It all depends (on) how you settle the problem.那要看你如何应付这问题而定。
4. 在某些结构中,that从句前面的介词和it可以省略。
I insist (on it) that you shall be there.我坚持要你在那里。
Please see (to it) that these letters are sent to the post.请注意把这些信付邮。