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1、学习必备欢迎下载it 的用法一、 it 作指示代词【完成句子】用 one，ones，it，that，those 填空(1) I cant find my watch. You havent found _？ If you want to buy a ne w _， I suggest you buy _ made in China. (2) Weve got a big cup and two small _ _. (3) The weight of an elephant is much greater than _ of a tiger. (4) The books on the firs
2、t shelf are easier than _ on the second shelf. (5) The boy told his story and _ of the girl upstairs. 【答案】(1) it; one; one(2) ones(3) that (4) those / the ones (5) that / the one 【结论 1】指代上文提过的事物时，it 指的是同名同物，相当于the名词；one 指的是同名异物，表示单数可数名词相当于a 名词； a / an形容词 one等于a / an形容词名词；复数形式用ones；that 后面常有后置定语，有特指意
3、义，代替不可数名词或单数可数名词，相当于the名词；复数名词用those，相当于 the ones。【例句观察】 Someone is knocking at the door. Who is it? It must be Leo. He said hed come to see me. 【结论 2】it 指代人时，常指小孩或身份不明的人。【例句观察】Its too quiet in the room. Everyone just keeps silent. 【结论 2】it 可用以指代环境或情况。【完成例句】根据语境补全句子(6) What time is it now? Its half
4、past seven. (7) It is spring now and its warm these days. 【结论 4】 it 可用以指代时间、季节、天气或距离。【注意】it 指代时间时，有如下一些句型：(1) It is time for sth. (for sb.)to do sth. / that从句 (should do / did, 必须用虚拟语气) 例： Its time for lunch. Its time for us to clean the house. Its time that we should clean the house. Its time that
5、we cleaned the house. (2) It is / has been some time since从句(从句用一般过去时) (3) It / This is the first / second time that从句 (必须使用现在完成时) 这是某人第 次做了某事。It / That was the first / second time that从句 (必须使用过去完成时) 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 4 页学习必备欢迎下载例： It is the second time that she ha
6、s visited the Great Wall. This was the first time that I had come late to school. (4) It was 时间点 when 从句例：It was evening when we got home. It was evening in which we got home. (5) It was / will be some time before 从句例：过了5 年他们才从北大毕业。It was five years before they finally graduated from Beijing Univers
7、ity. 不久，我们就要从我们学校毕业了。It wont be long before we graduate from our sc hool. 二、 it 作形式主语【完成例句】根据语境补全句子(8) It is possible for me to make a tour around the world. 【结论】代替由不定式、动名词或从句所表示的真正主语。为平衡句子，通常把不定式作主语改为 it 作形式主语。三、 it 作形式宾语【例句观察】 How did it come about that so many people were attacked? She feels it h
8、ard to get in to uch with her old friend. Mobile phones make it possible for us to keep in touch anywhere. I have made it a rule to get up early. 【结论 1】it 可以用在某些固定句型中，例如：How did it come about that 从句意为 “ 怎么发生的？”it 作形式宾语常用结构有：代替由不定式、动名词或从句所表示的真正宾语。常见结构有：主语think / consider / find / feel / make / belie
9、ve / regard itadj. / n. (for sb.)to do. 【例句观察】I consider it no good chatting with strangers through the Internet. 【结论 2】主语think / consider / find / feel it no good / use doing sth. 【例句观察】I hate it when people speak with their mouths full. 【结论 3】主语 hate / dislike / love / like it when从句， 表示对某一情况的喜好或厌
10、恶。【例句观察】I really appreciate it if you could help me with my math. 【结论 4】主语 appreciate it if从句【例句 观察】You must see to it that the doors are locked before you leave the lab. You can depend upon it that we wont give up. I answer for it that she is an honest girl. 【结论 5】主语 see to / answer for it that从句 (
11、确保 )主语 depend on it that从句 (指望，确信 )精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页，共 4 页学习必备欢迎下载四、带 it 的一些固定词组1(Youve / Ive) got it. 懂了，明白了2. Forget it. 算了吧，别在意，没关系。3. take it easy 别着急，慢慢来；别过于紧张4. make it 办得到，做成功5. make it 时间把定在 (某时) 6. It / That (all) depends. 那要看情况而定。7. It cant be helped. 没有办法。
12、/ 这是不可避免的。8. It is hard to say. 情况很难说。9. It comes to nothing. 没有什么结果。10. Dont mention it. 不用谢。11. Thats it. 对了；正是。12. catch it(口语)被责骂；受处罚13. Believe it or not. 信不信由你。14. It doesnt matter. 没有关系；不要紧；15. When it comes to 当谈到 ； 当涉及 16. Keep it up. 再接再厉。强调句型一、强调句型的基本用法1强调句结构：It is / was 被强调部分 that 句子的其余部
13、分。2句型解读：(1) it 是引导词， 强调的内容可以是句子的主语、宾语、 状语。 如果被强调的部分是人，that 可用 who 代替，其他情况一律用that。(2) 验证强调句的方法：去掉 It is / was that 结构后， 可以把 被强调的部分与句子其余部分还原为一个完整的句子。二、强调句型的考点【例句观察】(1) It was Edison who invented thelamp. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页，共 4 页学习必备欢迎下载(2) It is Edison who invents the l
14、amp. 【结论 1】注意时态的一致性。原句中用的是过去的某种时态，用 it wasthat ；原句中用的是现在或将来的某种时态，用it isthat 【例句观察】It is I that am your English teacher. 【结论 2】当被强调的部分是主语时，注意保持主谓一致。【例句观察】He didnt go to bed until he finished his homework. (对画线部分进行强调) It wasnt until he finished his homework that he went to bed. (强调句 ) 【结论 3】not until
15、结构用于强调句中，not 要提前到until 之前，放在be动词后。即：It wasnt until that 句子的其余部分。【例句观察】Was it not until he finished his homework that he went to bed? 【结论 4】强调句的一般疑问句形式：Is / Was it 被强调部分that句子的其余部分。【完成句子】When was it that he went to bed? 【结论 5】强调句的特殊疑问句形式：特殊疑问词is / was it that 句子的其余部分。【例句观察】I really dont know when it was that he went to bed. 【结论 6】含有强调句型的特殊疑问句作宾语从句时，注意用陈述语序。【疑难】 It is in the city where he was born that he works. 他工作的地方是他出生的那个城市。【疑难剖析】强调句中的被强调部分含有一个定语从句，要注意区别、分析。It is / was 被强调部分定语从句that (who) 句子的其余部分精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 4 页