英语单项知识的讲解与练习7.docx

1、英语单项知识的讲解与练习7英语单项知识的讲解与练习（7）31、强调句式 例句：In fact, it is you who have the most important role to play in stopping Yellow River erosion. 本句运用了强调句式。用句型来表示强调： 1）、用It is (was) that (who) 强调主语、宾语、状语和表语，谓语和定语不能强调。另外，强调时不能把一个完整的语法成分分开。有时可用：It might be that / It must have been that 句型。如：It must have been his b

2、rother that you saw. 这一句型可强调原因状语，当原因状语从句是由as, since引导的，应改为由because引导。结果、条件及让步状语从句不能用于这一句型。使用这一句型，要注意否定转移。如：Money cant buy everything. _ It is not everything that money can buy. It was in the lab that was taken charge of by Mr Wang that they did the experiment.（这句是强调句与定语从句的结合）； 2）、对not until这一结构进行强调时

3、，一般使用：It is (was) not until that ；如：He didnt get home until midnight. _ It was not until midnight that he got home. 3）、对一般疑问句中的某一成分进行强调时，要用一般疑问句的语序。如：Does he read this book every day? _ Is it this book that he reads every day? 4）、对特殊疑问句进行强调时，只能对疑问词进行强调，其强调句型是在疑问词后加上疑问式的强调句型。如：Who came to see you thi

4、s morning? _ Who was it that came to see you this morning? 5）、被强调的一般疑问句作宾语从句。如：I wanted to know if/ whether it was you that/ who saw him. 6）、被强调的特殊问句作宾语从句。如：I dont know what its that he wants you to do.练习：It was not _ she took off her dark glasses _ I realized she was a famous film star. A. when; th

5、at B. until; that C. until; when D. when; thenIt was _ that he didnt come. A. because he was ill B. since he was ill C. as he was ill D. for he was illWhat is it _ makes this boy interested in model planes? A. which B. that C. what D. who _ in a small temple _ Dr Bethune saved the wounded soldier. A

6、. It was; which B. It is; where C. It was; that D. It is; that Who was _ you met in the library? A. that B. it that C. it D. whichIt _ we had stayed together for a couple of weeks _ I found we had many differences. A. was until; when B. was until; that C. wasnt until; when D. wasnt until; thatIt is

7、not who will do it but how it will be done _ is of importance. A. which B. it C. that D. thisIt was after he got what he had desired _ he realized it was not so important. A. that B. when C. since D. asIs it the letter that you got yesterday _ makes you so sad? A. which B. what C. that D. when32、as

8、well as的用法 例句：English, as well as Chinese and maths, is of great importance. （1）、as well as 又、也、和一样好，着重在前半部分；A as well as B = not only B but also A 不但B 而且A ，连接主语时，谓语动词和前保持一致。如：He as well as we is active in sports； not only but also 不但而且，着重在后半部分；as well as 与动词连用时，用动名词。如：As well as breaking his leg, h

9、e hurt his arm他不但摔断了腿，而且弄伤了胳膊。 （2）、as well 也、又、同样地，着重在后面，一般不用于否定句，本身不能作连词，须和and, but等词合用。练习：E-mail, as well as phones, _ an important part in daily communication. A. is playing B. have played C. are playing D. play John plays football _, if not better than, David. A. as well B. as well as C. so well

10、 D. so well as _ his parents as well as he gone to Paris for the weekend? A. Are B. Have C. Is D. Has Its much too late. _ , its raining heavily outside. A. Except B. Besides C. As well D. As well as My bike is _ new, even though I have had it a year. A. as well as B. as well C. as good as D. as goo

11、d 33、推测句型 例句：Excuse me, is this the right way to the Summer Palace? Sorry, Im not sure. But it might be. 本句是表示推测的句型。can, could, may, might, should, would, have to都可用来表示推测。must 在肯定句式中表达强烈语气，意为“想必、一定”，是有把握的推测。must do对目前动作的推测；must be doing对目前正在发生的动作的推测；must be +表语，表示“一定是”，对目前状态的推测；must have done表示“一定做过

12、”，对已经发生过的事情，如一般过去时、现在完成时及过去完成时的推测。cant用于否定、疑问句式，表达强烈语气，意为“不可能、可能不会”。1）、can用于否定句和疑问句。2）、 could用于肯定句、否定句和疑问句， could比 can推测的把握更小。3）、 may用于肯定句、否定句，不用于疑问句。4）、 might用于肯定句、否定句和疑问句， might比 may表示推测时的可能性更小。5）、 must只用于肯定句，表达强烈的肯定推测，所说的情况是事实或基本接近事实； must之后的动词原形往往是 be, have, love, like, hate等少数动词，进行式和完成式中的动词类型不受

13、限制。练习：The plant is dead. I _ it too much water. A. must give B. should give C. must have given D. should been givenHe you more help, even though he was very busy.A. might have given B. might give C. may have given D. may giveI searched for my wallet and it wasnt there. I thought I it at home.A. left

14、 B. have left C. might have left D. could have leftI asleep because it took me a long time to realize that the telephone was ringing.A. could have fallen B. should have fallenC. must have fallen D. mustnt have fallenI went to the seaside and spent a whole day on the beach with my friends. Oh, you _

15、yourselves since the season was fit for a trip. A. must enjoy B. must have enjoyed C. should have enjoyed D. need have enjoyed Look! The ground is wet all over. It must _ last night, _ it? A. have rained; didnt B. rain; didnt C. have rained; mustnt D. rained; cant There were already five people in the car but they managed to take me as well. It _ a comfortable journey. A. cant be B. shouldnt be C. mustnt have been D. couldnt have beenWhere is Mary? I saw her in the library a moment ago. She _