2016-06-23
xredued04
一、祈使句
1、祈使句表示请求、命令、叮嘱、号召等，谓语动词用原形。
例如：come in Be careful!
2、祈使句的否定形式以do not(缩写为don′t)或never引起。
例如：Don′t be careless. Never do that again.
3、“do +祈使句”表示一种强烈的感情或请示。
例如：Do come on time(务必)准时来。
4、在直接引语变间接引语中，祈使句的肯定形式为to do…，否定形式为not to do….
例：(1)The teacher said to the student,“come in, please”.
The teacher asked the student to come in.
(2)Mom told the child, don′t play with fire.
Mom asked the child not to play with fire.
5、let+宾语+宾补，构成祈使句
例如：Let me help you.
二、感叹句
1、what作定语，用来修饰名词，结构如下：
(1)当被修饰的词是可数名词的单数形式时，用下面的结构。
What +a(n)+形容词+单数可数名词+主语+谓语
例如：What a useful dictionary it is!
What an interesting film this is.