Experience。本期话题是：早起的鸟儿有虫吃。请结合发生.ppt

这是一个由and连接的并列句，经常用来描述动作、状态接续性很强的事情，用的好可以使句子流畅自然；而后面的分句中，it是形式主语，真正的主语是不定式，to handle the boat。在以不定式、动名词、从句作主语的时候，经常使用it作形式主语，而把真正的主语放在后边，使句子结构平衡，避免头重脚轻。 常见到的it的句式： 1．It is/was＋被强调部分＋who/ that ＋句子的其它成分。 It is on this arable land that the farmers produce food for the whole population of China. I have always been honest and straightforward and it doesnt matter who it is that Im talking to.(广东卷) It is we who are to blame for the poverty because we used to ‘produce’child without limit.(广东卷) 2．It be/become＋adj./n.＋(for sb)＋to do.../ that... With so many people communicating in English every day，it will become more and more important to have a good knowledge of English. It is polite to finish eating everything on your plate，so dont take more food than you need. It is hardly any wonder that his friend doesnt like watching television much.(2004·广东卷语法选择题) 3．It took/was/will take/will be＋一段时间＋before...过多久才(就)……此句型中谓语动词多用过去时和将来时。 It didnt take long before the wooden building was swallowed by the fire. It is time ＋ for sth/to do sth/that...该是……的时候了。 后接that从句时谓语动词常用过去式或should＋动词原形。 It is time for me to study hard. It is (high) time that we attended the meeting. 4．It is the first/second...time (that)．..第一/二次…… 由于time前有序数词修饰，从句谓语动词常用完成时态，且和主句时态保持一致。 It was the first time (that) he had been awarded a Grammy. It is the second time that we have been to Hongkong. 5．It looks/seems as if...看起来好像…… It looked as if the creature had moved. 6．It is said/reported/thought/considered/believed/announced/expected...＋to do.../that... 据说/据报道/据认为/据相信/据宣布/据期望…… It is said to be the citys largest ever cultural relics repair project. It is also believed that this culture was different from most other cultures because it was the women，and not the men，that were the leaders. 7．It takes (sb) some time to do sth 做某事花费多少时间 It took a long time to climb out but I finally got out. How long does it take to get to the airport? 8．It is no use/good ＋ doing sth做某事是没用/好处 It is no use crying over the spilt milk. It