[祈使句结构]祈使句结构
【shitiku.jxxyjl.com--专业英语词汇】
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.
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