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什么是祈使语气？
祈使语气用于命令或要求某人做某事或不要做某事。看看这些例子：
You can go to your room. → Go to your room!
你可以回你的房间。→ 回你的房间！
You need to start. → Start!
你需要开始了。→ 开始吧！
You should respect your mother. → Respect your mother!
你应该尊重你的母亲。→ 尊重你的母亲！
结构
祈使语气是通过将主要动词的原形放在句子的开头来构成的，不带主语。祈使句通常以感叹号结束，但在某些情况下也可以以句号结束。看看下面的例子：
Finish your meal!
吃完你的饭！
Speak to your doctor!
和医生谈谈！
Bring the keys, please.
请把钥匙带来。
注意力！
单个主要动词也可以构成祈使句，但前提是它以动词原形使用且没有主语。看看这些例子：
Go!
走！
Start!
开始！
否定祈使句
要表达否定命令，在祈使句的开头使用 'do not'（或 'don't'）。这是用于告诉某人不要做某事。以下是一些例子：
Don't touch my hair!
别碰我的头发！
Don't show me the cat!
别把那只猫给我看！
Do not drink water in the class!
上课时不要喝水！
Please!
为了使命令或请求更有礼貌，可以在祈使句的末尾使用 'please'。当使用 'please' 时，重要的是在 'please' 前加一个逗号。看看这些例子：
Close the door, please!
请关门！
Shave your beard, please!
请刮掉你的胡子！
Read the text, please!
请读这篇文章！
Quiz:
Which of the following sentences is an example of the imperative mood?
She speaks to her doctor every week.
Speak to your doctor about the problem!
She is speaking to her doctor right now.
She has already spoken to her doctor.
Which of the following sentences is an example of a negative imperative?
Bring the books, please!
Start your homework!
Don't forget your keys!
Speak louder!
Sort the words to form a correct imperative sentence:
Match the descriptions with the correct imperative sentences:
Complete the sentences with the correct word to complete the imperative sentences
the meeting now!
Pass the salt,
!
touch the artwork!
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