7. It takes sb. some time to do sth．此句型表示“干某事花了某人一段时间。”其中的it是形式主语，后面的动词不定式（短语）才是真正的主语. =sb.spend some time on sth. (in) doing sth. It took me half an hour to do the work. =I spent half an hour in doing the work. 8．…think／find + it + adj. + to do sth. 此句型中的it是形式宾语，不可用其它代词替代，形容词作宾语的补足语，后面的动词不定式（短语）才是真正的宾语。 eg.I find it useful to learn English well. (我发觉学好英语是很有用的) find +宾语+名词 eg.I find him a good boy. 我发现他是个好男孩. find +宾语+形容词 eg.I find the door open/closed. 我发现门开/关着 I find our bags filled with/full of presents. 我发现我们的包装满了礼物 9．What’s wrong with…? 此句型相当于What’s the matter/ trouble with…?后跟某物作宾语时，意为“某物出什么毛病了?”后跟某人作宾语时，意为“某人怎么了?” What's wrongwith you? 你怎么啦? What's wrongwith your watch? 你的手表有什么毛病? 10. 祈使句+and (那么)+陈述句 Go straight on and you’ll see a school. =If you go straight on, you’ll see a school. 祈使句+or（否则）+陈述句 Work hard, or you will fall behind the other students.=If you don’t work hard, you’ll fall behind the other. 11．too…to…'太…而不能' '太…以致于不' 经常与so…that…转换。 在so…that…复合句中，that后的句子是否定句时，常与简单句too…to…（太……而不能……）进行句型转换。 This colour TV is so expensive that we can’t afford it.=This colour TV is too expensive for us to buy. The basket is so heavy that I can’t carry it.=The basket is too heavy for me to carry. 在so…that…复合句中，that后的句子是肯定句时，常与简单句…enough to…进行句型转换. He is so clever that he work out the problem.=He is clever enough to work out the problem. 12. She used to be a Chinese teacher. 她过去是一位汉语老师。 [用法] used to + 动词原形，表示过去经常性的动作或存在的状态，含有现在不再如此之意。 [搭配] used to do的否定式可以是usedn’t to do或didn’t use to do. [比较] used to do sth. 过去常做某事；be/ get used to doing sth. 习惯于做某事；be used to do sth. 被用来做某事。 |
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