初中英语语法学习之it用法混淆点.docx
初中英语语法学习之it用法混淆点it用法混淆点1. It is +adj. (+for sb. / sth. ) + to do sth.用于此句型的形容词有：easy, hard , difficult, possible, important, impossible, necessary, good, bad, exciting, interesting, surprising 等。2. It is +n. (+for sb. / sth. ) + to do sth.用于止匕句型的名词有： pity, shame, pleasure, one? s duty, one' s job, fun, joy, good manners, bad manners 等。3. It is +adj. +ofsb. +to do sth.此句型中的形容词主要描述某人的品德、特征。能用于该句型的 形容词有：kind, nice, wise,silly, polite, impolite, friendly, foolish, clever 等。4. It is +adj. (+n. ) +doing sth.此句型中的形容词和名词常见的有：no / little usez no / much good, useless 等。5. It takes sb. + 一段时间+t。do sth.表示“做某事花费某人 多长时间二6. It is +及物动词的过去分词+that从句此句型中常见的及物动词的过去分词有：said, told, known, reported, recorded, thought, believed, considered 等。7. It +不及物动词+that从句此句型中不及物动词常见的有：seem, happen, appear, matter等。8. 强调句型：It is+被强调部分+that / who从句在使用强调句型时要注意，指人时可以用who或that,其它情 况一律用thato9. It is / has been + 一段时间+since 从句。10. It is (high) time that sb. did sth.该句型表示“某人现在该做某事了”，从句常用过去时(虚拟语 气)说明现在应该做的事情。“It”用法及其句型和固定搭配，是英语语法的重点、难点，又 是近几年考试的热点，因此在复习中应给予足够的重视。It的用法：作形式主语或形式宾语的用法1 .作形式主语引导词it在句中充当形式主语，而其随后的不定式短语、动 名词短语或从句则是真正的主语。例如：It is said that Edison made more than one thousand inventions during his life.2 .作形式宾语当复合宾语中的宾语是动词不定式、动名词、宾语从句时, 往往把宾语放在它的补足语的后面，而把it放在谓语动词和宾语补足语中间。不定式：I find it difficult to remember everything.动名词:I think it no use telling them.宾语从句：I think it is very important that we should take part in the discussion.It常用的固定搭配：1. make it(1)在口语当中相当于succeed,表示：成功、做到、说定、赶 上、及时到达例 It's hard to make it to the top in show business.(2)在口语中相当于fix the date for,表示“约定好时间”例 一Shall we meet next week?一OK. We just make it next Saturday.2. as it is(1)相当于in fact, in reality表示“事实上,实际情况是”例 We had planed to finish the task today, but as it is we probably won't finish it until next week.(2)相当于方式状语从句，表示“照原样”例 Leave the table as it is.3. as it were相当于as one might say, that is to say,表示“也就是说，可以说， 换句话说”例 He is, as it were, a modern Sherlock Holmes.4. if it weren't for/if it hadn't been for-用来引导虚拟语气，相当于without, or but for,表示“如果不 是，要不是”例 If it weren't for Tom, I wouldn't be alive today.5. that's it(1)相当于That's all That's so much.表示“至此为止，没有别 的了”彳列 You can have one more sweet, and that's it.(2)相当于That's right.表示“对啦”例 一 I guess the key to the problem is thechoice "A”一That's it.6. catch it在口语中, 相当于 be punished/scolded for doing sth. wrong. 表示 “因做错事而挨骂，受责备，受批评，受惩罚”例 Well really catch it form our teacher if we1 re late for class again.7. have it(1)相当于say, insist表示“说，主张，表明，硬说”彳列 Rumour has it that they are getting divorced.(2)相当于get to know something,表示“ 了解，知道，获悉” 彳列 I had it from John that she was going abroad.8. have what it takes在口语中，相当于be well qualified for,表示“具有成功的条件”例 You can take it from me that your daughter has what it takes to be a star.9. so it seems / appears.10. Keep at it! (Don't give up !)相当于goon,表示“继续做，不放弃”彳列 My teacher asked me to keep at it.11. Go it! (Goon!)拼命干,莽撞12. Now you have done it! (You have done sth. wrong.)13. Nowyoull catch it! (You'll be punished.)14. As it happened, 在口语中，相当于it's a pity that，表示“真不凑巧，真遗憾” 彳列 As it happened, they were out.15. As it turned out, 在口语中，相当于it was found to be in the end,表示“最后被证 明是“例 As it turned out, his statement was false.16. Such as it is (they are)在口语中，相当于 although it may not be worth much, 表示“虽然没有多大价值”例 You can borrow my exam notebook, such as it is.17. Take it/things easy.相当于DorVt worry or doiYt hurry.用来劝告别人，表示“不要慌， 别担心，存住气”例 Take it easy! He will do it well.18. Take it from me.在口语中，相当于believe me what I say.表示“请相信我的话，我 敢担保”例 You can take it from me that he will make it this time.19. For what it is worth-，在口语中，相当于 although l*m not sure it's of value,表示“不管 其价值如何”例 Here is the article I promise you, for what it's worth.20. Worth it在口语中，相当于useful,表示“有好处，值得做”例 Don't hesitate about it! It's worth it.21. Believe it or not.表示“信不信由你”彳列 Believe it or not, Tom is getting married to Mary next Sunday.22. Take it or leave it. v.要么接受要么放弃例 That is my last offer. You can take it or leave it.23. It all depends/that all depends在口语中，相当于it hasn't been decided yet,表示“那得看情况， 还没有定下来”例 一Are you going to the countryside for holiday?It/That all depends.24. It's up to sb.决定，由在口语中，相当于it's decided by sb.表示“由负责，取决于”例 一Shall we go out for dinner?It's up to you.
