1、Unit 4 Global warming-Grammar 组稿人 李坤 张芳考点 1it指代前面所提到过的事情、事物；身份不明的人或婴儿，未指明但谈话双方都明白的事情或情况。The Parkers bought a new house but it will need a lot of work before they can move in.(指双方都明白的事情) 帕克一家买了一套新房子，但是在入住之前有大量的工作需要去做。2it用作形式主语或形式宾语，而把真正的主语或宾语放在后面，真正的主语或宾语往往由从句、动名词、不定式充当。New technologies have made it
2、possible to turn out new products faster and at a lower cost.新的科技使得在高效率低成本的前提下生产出新的产品变为可能。As far as Im concerned，its no use arguing with him；he wont change his mind.就我个人而言，同他争论没用，他不会改变主意。3表示“喜欢、恨”等心理方面的动词后面接it（再接从句），构成固定结构，这类动词有enjoy，prefer，love，like，hate，dislike，appreciate等。They would appreciate it
3、，to be frank，if the goods could be delivered as soon as possible.坦率地说，如果货物尽快被送到，他们会感激不尽。Laughter is the best medicineat least when it comes to protecting your heart.笑是最好的药，至少当涉及保护心脏的时候(是这样)。考点表示强调,其结构是: It is / was+强调部分+ that+原句剩余部分。此结构只限于强调状语、主语和宾语。 注意：如果强调的是人, 其后用that或who 均可; 如果强调的是物、时间或地点等状语, 其后只
4、能用that不用where、when、why。I saw Tom here yesterday. It was I that / who saw Tom here yesterday. It was Tom that / who I saw here yesterday. It was yesterday that I saw Tom here. It was in the street that I saw Tom yesterday.注意: 1 若原句是notuntil句型, 在强调until 部分时,要把否定形式放入被强调部分。例如: He didnt leave until l ret
5、urned. = It wasnt until I returned that he left2 强调句型中前后时态应一致;3被强调的部分为主语、宾语和状语,4若把it iswas和thatwho去掉,剩下的词语能重新组成正确的句子,而且不缺成分,否则就是其它从句。 It was in 1945 that World War II ended. (强调句)It was 1945 when World War II ended.(状语从句)It is a long time since I met you last. (时间状语) It is time that you went to bed.
6、 (定语从句) 根据划线部分把下列句子变成强调句1. Peter lent us the money.2. They want money. 3. All this happened on Monday4. I didnt hear from her until last summer.5. Why does everyone think I am narrow-minded? 1. It is two years _ I joined the army. A. before B. since C. that D. after2. It was two years _ I joined the
7、 army. A. before B. since C. that D. after3. It was not until 1920 _ regular radio broadcast began. A. while B. which C. that D. since4. _ is a fact that English is being accepted as an international language. A. There B. This C. That D. It5. It was about 600 years ago _ the first clock with a face
8、and an hour hand was made.A. that B. until C. before D. when6. I hate _ when people talk with their mouths full. A. it B. that C. these D. them 7. The Parkers bought a new house but _ will need a lot of work before they can move in. A. they B. it C. one D. which8. _ no need for us to discuss the pro
9、blem again since it has already been settled. A. It has B. There has C. It is D. There is9. _ was in 1979 _ I graduated from the university.A. That; that B. It; that C. That; when D. It; when10. What a pity my new computer doesnt work! _ must be something wrong with it. A. It B. There C. This D. That