必背的60个英语句型,初中三年高频考点,太重要了!(三) 16. had better (not) do sth. 最好(别)做某事 had better为情态动词,其后需用动词原形。had better常用缩写,变成’d better,其否定形式是在其后直接加not。例如: We had better go now. = We d better go now. 我们最好现在走吧。 You d better not go out because it is windy. 今天刮风,你最好别出去了。 17. have sth. done 使(某事)完成 (动作由别人完成) sth.为宾语,done为过去分词作补语。例如: We had the machine repaired. 我们请人把机器修好了。 注意区分: We have repaired the machine. 我们(自己)已经修好了机器。 18. help sb. (to) do sth./with sth. 帮助某人(做)某事,其中的to可以省略。例如: I often help my mother with housework. 我常常帮助妈妈做家务。 Would you please help me (to) look up these words? 请你帮助我查查这些词好吗? 19. How do you like……? 你认为……怎么样?与what do you think of …?同义。 例如: How do you like the weather in Beijing? 你认为北京的天气怎么样? 20. I don t think/believe that… 我认我/相信……不…… 其中的not是对宾语从句进行否定而不是对主句否定(否定前移)。that可省略。例如: I don t think it will rain. 我认为天不会下雨。 I don t believe the girl will come. 我相信那女孩不会来了。 21. It happens that… 碰巧…… 相当于happen to do,例如: It happened that I heard their secret. 可改写为: I happened to hear their secret. 我碰巧听到了他们的秘密。 22. It s/has been +一段时间+since从句 自从某时起做某件事情已经一段时间了 该句型中since引导的时间状语从句常用一般过去时。例如: It s twenty years since he came here. 他来这里已经20年了。 It has been six years since he married Mary. 他和玛丽结婚已经六年了。 23. It is +adj./n. + for sb. to do sth. 做某事对某人来说…… It是形式主语,真正的主语是不定式to do sth。例如: It s not easy for us to study English well. 对我们来说学好英语并不容易。 It s a good idea for us to travel to the south. 去南方旅行对我们来说是个好主意。 24. It s + adj. + of sb. to do sth. It是形式主语,to do sth.是真正的主语, 当表语(即形容词)能对逻辑主语描述时,常用介词of,而不用for。例如: It s very polite of you to give your seat to old people. 你给老人让座,非常有礼貌。 25. It seems/appears (to sb) that… (在某人看来)好像…… 此句中的it是主语,that引导的是表语从句。例如: It seems that he is lying. 看样子他好像是在撒谎。 It appears to me that he never smiles. 在我看来,他从来没有笑过。 |
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