英语否定祈使句 主语放哪里
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英语否定祈使句主语放开头。
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?
1、no+名词或动名词
e.g.No smoking.不许吸烟。
2、have done
e.g.Have done scolding him!不要再责备他了。
3、be+形容词或名词
e.g.Be careful!小心
4、be+过去分词
e.g.Be seated,please!请坐。
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