it的用法高考English

1、第一，it作形式主语的常见句型(1)it替代动词不定式的常见句型为: It+ be+ adj+ (for sb.) to do sth.此处的形容词通常为描述事件的形容词：easy, difficult, hard, necessary, unn ecessary, possible 等。如:It is illegal for a tee nager to drive a car without a lice nse. It +be+ adj.+of sb. to do sth.此处的形容词通常为描述人的形容词：kind, un ki nd, nice, rude, cruel等。如:It s

2、 kind of you to help me with the problem.it替代动词-ing的常见句型：It s no good/use doing.It s (well) worth doing.如: It s no use crying over spilt milk.(3)it替代从句的常见句型：It +be+n.+that从句 正如：It is no secret that the preside nt wants to have a sec ond term in office.从句 It +be+adj.(important, necessary, surprising.

3、)+that从句中的谓语动词用 should+ 动词原形 形式，且 should 可省略。如：It s important that you should apologize to her for your rudeness. It +v.+sb.+that从句 = It +be+ v-ing +that从句如：It worried me that she drove so fast.(= It was worrying that she drove so fast.) It+v.(+to sb.)+ that从句常用动词或短语有 appear, seem, come about, emerg

4、e, follow, chance, happen, occur, transpire, turn out, work out等。如：It (so) happened/chanced that they were out.(= They happened/chanced to be out.) It +be+ v-ed +that从句常用动词有 say, report, think, believe, hope, expect, agree, accept, decide, determine, intend, plan, understand, know 等。如：It is said tha

5、t the couple have gotten divorced.(=The couple are said to have gottendivorced.) It +be +v-ed + that.(should).常用动词有 demand, request, require, order, suggest, advise, recommend 等。如：It is suggested that they should begin with the third question.第二， it 除了作形式主语外，也可以 作形式宾语，如动词 find, think, consider, feel

6、, make等，这些词后常用 it 作形式宾语，替代其后的动词不定式或从句。此外，英语中动词 appreciate, enjoy, like, dislike, love, hate, prefer等之后，常用 it 作形式宾语，替代其后的 when/if 从句。如：I find it interesting to talk with her. 我觉得与她聊天很有趣。I think it possible that she would like to help you.我认为她帮助你是有可能的。【典例 1】_is the sun that gives off light and heat, w

7、hich makes _possible for plants to grow.A. It; it B. That; thoseC. This; it D. This; them 错因分析 如果考生对 it 作形式宾语及含 it 的强调句型掌握得不牢固，就会造成误选。 解析 分析句子结构可知，第一空考查强调句型的根本结构： it is/was+ 被强调局部 +that+ 句子的其他局部，故用it;第二空用it作形式宾语，其真正的宾语是后面的动词不定式。答案为A项。【典例 2】To her joy, Della earned first the trust of her students and

8、 then _of her colleagues.A. that B. oneC. ones D. those错因分析很多考生看到横线后的 of就错误地选择了 B、C项，没有弄清句子要表达的意思解析 句意：使她快乐的是， Della 首先赢得了她的学生的信任 , 然后又获得了同事的信任。空 后面的 of her colleagues 与前面的 of her students 是同样的结构，因此此空应该选择 that 来 替代 the trust ，以防止重复。答案为 A 项。【典例 3】I d appreciate _if you could let meknowin advanee whet

9、her or not you will come.2021 陕 西A. it B. youC. one D. this错因分析 考生如果没有掌握这个知识点 英语中动词 appreciate, enjoy, like, dislike, love, hate, prefer 等之后，常用 it+when/if 从句 ，在做此题时就很容易误选选项。 解析 句意：如果你能够让我提前知道你是否要来，我会非常感谢。根据句子的结构，此空在 句中作形式宾语，而真正的宾语为 if 所引导的从句，故要用 it 。故答案为 A。第三，含 it 的固定用法forget it 没关系，休想，不必在意get it 明白了，理解了，知道了I can t help it 我没方法make it 获得成功，幸免于难as it is 照现状It depends. 看情况而定。Don t mention it.不客气。Take it easy. 别着急。believe it or not信不信由你see to it that .确保depe nd upon it . 请相信take it for gran ted that.认为是理所当然的It makes no difference at all.一点关系也没有。It s ha