lisa,you can't eat food in the classroom.改为祈使句怎么改

you can't eat food in class改为祈使句~

1.Don't eat food in class.2.Walk to school today.3.Don't be late for class next time.4.Be quiet now.5.Take her to the hospital.6.Don't play soccer in the park.

Don't eat candy in class
.
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点拨：祈使句是没有主语的句子。
可以改为：Don't eat food in the class.
不要在教室里吃东西
扩展：祈使句有三种形式：Do型、.Be型和Let型。

一、肯定结构:

1.Do型(即:动词原形(+宾语)+其它成分).如:Please have a seat here.请这边坐.

有的祈使句在意思明确的情况下,动词可省略.如:This way,please.= Go this way,please.请这边走.

2.Be型(即:Be + 表语(名词或形容词)+其它成分).如:Be a good boy!要做一个好孩子!

3.Let型(即:Let + 宾语 + 动词原形 + 其它成分).如:Let me help you.让我来帮你.

二、否定结构:

1.Do型和Be型的否定式都是在句首加don't构成.如:Don't forget me!不要忘记我!

Don't be late for school!上学不要迟到!

2.Let型的否定式有两种:“Don't + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语 + not + 动词原形 + 其它成分”.如:Don't let him go./ Let him not go.别让他走.

3.有些可用no开头,用来表示禁止性的祈使句.如:No smoking!禁止吸烟!No fishing!禁止钓鱼!

Lisa, you can't eat food in the classroom 的祈使句为：Don't eat food in the classroom ！

祈使句就是没有主语的句子。这里我们可以有两种表达方式。第1种 don't eat food in the classroom.第二种no eat food in the classroom。

祈使句改为：
Don't eat food in the classroom.

祈使句的意思就是没有主语

这句话可以改成：Don't eat food in the classroom

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