Section Ⅲ　Grammar--名词性从句(Ⅰ)

语 境 自 主 领 悟 先观察原句 ①At lunch，the radio forecast that the mist would become a thick fog in the afternoon.

②She wondered if the buses would still be running.

③...the truth is that it is too foggy for the bus to run that far.

④...she had a feeling that she was being watched by a tall man in a dark overcoat.

⑤Scientists are interested in whether the sense of smell is related to pain.

⑥However，why pleasant smells do not reduce pain in men remains a puzzle for scientists.

⑦It is added that while our sense of sight is used too much，our senses of touch and smell have been ignored. 后自主感悟 1.上述例句中黑体词引导的从句都是名词性从句。

2.第⑥、⑦两句中黑体词引导的从句是主语从句。

3.第①、②、⑤句中黑体词引导的从句是宾语从句。

4.第③句中的黑体词引导的从句是表语从句。

5.第④句中的黑体词引导的从句是同位语从句。

　　名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位语。因此，名词性从句分为主语从句、表语从句、宾语从句和同位语从句，都不能用逗号与主句分开。

　　When we will start is not clear.(主语从句)

　　我们何时动身还不清楚。

　　Mrs.Black won't believe that her son has become a thief.(宾语从句)

布莱克夫人不相信她的儿子成了一个小偷。