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13.1 祈使句结构

来源: 英语作文网 日期:2019-08-19 16:12:18 分类:英语学习 阅读: 次

祈使句用以表达命令,要求,请求,劝告等。

1) 祈使句有两种类型,壹种是以动词原形开头,在动词原形之前加do (但只限于省略第二人称主语的句子)。
Take this seat.
Do be careful.
否定结构:
Don't move.
Don't be late.

2) 第二种祈使句以let开头。
Let 的反意疑问句
a. Let's 包括说话者
Let's have another try,shall we / shan't we?
= Shall we have another try?

b. Let us 不包括说话者
Let us have another try,will you / won't you?
= Will you please let us have another try?

否定结构:
Let's not talk of that matter.
Let us not talk of that matter.
X

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