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1、Unit4 Global warming-语法篇_1. 掌握it在强调句中的用法；2. 能够利用这个语法点进行遣词造句并运用到写作中；it的用法强调句型一、强调句型的基本用法英语中常用的强调句型是：It is / was + 被强调部分(主语、宾语、状语) + that / who / whom + 其他部分。一般来说，被强调部分指人时，用who或whom，其他情况用that，但that也可指人。现在用强调句型强调下面这个句子的主语、宾语和状语。She met John at Marys birthday party last Sunday.It was she who / that met
2、John at Marys birthday party last Sunday. (强调主语)It was John Whom / that she met at Marys birthday party last Sunday. (强调宾语)It was at Marys birthday party that she met John last Sunday. (强调地点状语)It was last Sunday that she met John at Marys birthday party. (强调时间状语)温馨提示：1.it为引导词，本身没有词义，仅起引导强调句式的作用；2.若强
3、调的主语是人时，常用who，间或用that，若强调的宾语是人时，多用whom / that；3.在强调状语时，用that；4.在强调结构时，无论被强调的是人还是物，是单数还是复数，be动词一律用单数形式is / was, 如果原句中的谓语动词是过去时态，就用was，若是现在时态或将来时态，就用is，也可用情态动词 + be形式；5. 判断一个句子是否是强调句型的方法：如果将句中的It is / was that / who / whom去掉，仍能还原为一个完整的句子，那么此句就是强调句。否则，就是其他句型结构。请比较： It was 1999 when he came back from th
4、e United States. (定语从句) It was in 1999 that he came back from the United States. (强调句型)6. 被强调部分若是句子的主语，that / who之后的谓语动词在人称和数上应与句子的主语保持一致。eg：It is I that / who am your friend that will come to help you.二、强调句型的几种较为复杂的结构形式1. 被强调部分为状语从句。 Eg: It was when Tom was eleven years old that his talent for writ
5、ing became obvious.2. 被强调部分含有定语从句。 Eg: It was on July 4 th, 1975 when he was born that his father died.3. notuntil结构用于强调句型。 notuntil作为被强调部分，起结构是：It is / was + not until+ that + 其他部分。 Eg: It was not until his father came back that he went to bed.4. 强调句型的一般疑问句结构：Is / Was it + 被强调部分+ that + 其他部分。 Eg: W
6、as it last year that his cousin joined the army?5. 强调句型的特殊疑问句结构：疑问词（被强调部分）+ is / was + it + that + 其他部分。 Eg: When was it that the accident happened? Where was it that you lost your wallet?1. (2014南通二调)Do you know in what circumstances it was _Jack achieved his goal?A. thatB. howC. whereD. when2. (20
7、14厦门质检)She realized that it was not the words but the way she spoke to Bruce _hurt him.A. who B. whom C. which D. that3. (2014安徽师大附中模拟)The police were seeking more information to find out _ the rich merchant.A. who it was that killedB. who was it that killedC. it was who killedD. who was it killed4.
8、 (2014长沙四县一市3月联考)I have always been honest and straightforward, and it doesnt matter _Im talking to.A. who is it thatB. who it is thatC. it is who thatD. it is whom that5. (2014银川、吴忠部分中学高三年级联考)From mothers love, patience and understanding, I have learned what a huge responsibility _is to raise a chi
9、ld.A. it B. which C. thatD. this基础演练一、单项填空1. It was from only a few supplies that she had bought in the village _the hostess cooked such a nice dinner.A. where B. that C. when D. which2. Johns success has nothing to do with good luck. It is years of hard work _has made him what he is today.A. why B.
10、 when C. which D. that3. Ive read another book this week.Well，maybe _ is not how much you read but what you read that counts.A. this B. that C. there D. it4. It was _ he came back from Africa that year _ he met the girl he would like to marry.A. when; then B. not; until C. not until; that D. only; w
11、hen5. It was after he got what he had desired_ he realized it was not so important.A. that B. when C. since D. as6. He was told that it would be at least three more months_ he could recover and return to work.A. when B. before C. since D. that7. It was for this reason_ her uncle moved out of New Yor
12、k and settled down in a small village.A. which B. why C. that D. how8. It was on the farm _ he spent his childhood _ he learned how to grow vegetables.A. where; that B. which; when C. that; that D. which; which9. As is reported in the newspaper，it was_ that resulted in the terrible accident.A. becau
13、se of her carelessnessB. her being carelessC. because she was carelessD. she was so careless10. When asked to explain_ he does to make his students so fascinated with his lessons，the teacher paused and thought deeply.A. what it is that B. that what it isC. what is it that D. that what is it11. Is it Professor Li_ teaches you English?A. which B. whom C. who D. whether12. It is I who_ going to Zhangjiajie.A. is B. was C. am D. are13. Was it six years ago，when he came to China for the first time, _ he began to learn Chinese?A. where B. how C. which D.
