句型是please do吗?
句型是please do吗?
我猜你是想说祈使句的用法吧? 祈使句前面加please表示礼貌,也可不加。 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。 。
说清楚点什么意思?
答:详情>>