奥数郑州站 > 小升初 > 小升初知识 > 英语知识点 > 正文
来源:郑州奥数网整理 2011-08-17 16:04:53
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,一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.
关注奥数网官方微信 数学资料、数学真题、更有全国教育资讯 微信搜索“奥数网”或扫描二维码即可添加
欢迎扫描二维码
关注奥数网微信
ID:aoshu_2003
欢迎扫描二维码
关注中考网微信
ID:zhongkao_com