文档介绍：祈使句
肯定式：Come here, please.
Be patient, please.
Let’s go by bus.
否定式：Don’t touch it.
Don’t be lazy.
Never play with fire!
答语： Yes, I will. / No, I won’t.
反意问句：will you/ shall we
句式： 祈使句or/and +主+will (won’t) /can (can’t)...
第一页，共18页。
祈使句的肯定式
祈使句的肯定句式有三种形式，即
1). Do型( 以行为动词原形开头)
例如: Sit down 坐下! Stand up起立！
2). Be型(以be开头),
例如: Be quiet安静！
3). Let型（以let开头）
例如: Let me help you. 让我来帮助你。
第二页，共18页。
祈使句的否定式
祈使句的否定结构是以“Don't＋动词原形”开头
Don't go there, please． 请别去那儿。
Don't be late． 不要迟到。
Don't let him in． 不要让他进来。
Don't let the water run into the room. 不要让水流进屋里。
第三页，共18页。
注意：
Let's型祈使句，其否定式也可用
Let’s not …
如：
Let's not have rest． 咱们别休息了。
Let's not sit here! 我们不要坐在这儿！
第四页，共18页。
祈使句的答语
Tom: Remember to turn off the light !
John: I will.
Tom: Don’t forget your homework!
John: I won’t.
Tom：Don’t come to school late again!
John: Sorry, I won’t.
第五页，共18页。
祈使句的反意疑问句
反意问句
Open the door, will you?
Let’s go by bus, shall we?
Let us leave at once, will you?
第六页，共18页。
一个重要句型
祈使句， and/then 主can/will do…
祈使句， or 主语 cannot/ won’t do…
Examples:
1) Think hard, and you will come up with an idea.
2) Think hard, or you will have no way out.
转换 1) If you think hard, you will come up
with an idea.
2) If you don’t think hard, you will
have no way out.
第七页，共18页。
祈使句转换为间接引语
1）“Come here, Tom!” John said.
John told Tom to go there.
2) “ Don’t pick flowers,” he said to us.
He told us not to pick flowers.
第八页，共18页。
随堂练****br/>1. He told me _____for school.
A. don’t be late B. don’t late
C. not to be late D. is not late
2. —Please don’t make a noise!
— will be as quiet as a mouse.
A. Yes, I won’t. B. No, I won’t.
C. No, I will. D. Yes, I will.
第九页，共18页。
3. Stop talking and _____ to me. I have some news for you.
A. listening