1、Unit 3 Understanding each other-Grammar and usage 课时作业2I. 单项选择 (每题2分，共30分）1. The party is so great! Yes, but Johnson, weve got to go home. _ Thank you. See you later. A. Enjoy yourself! B. See you.C. Im very sorry. D. What about you?2. Do you take _ sugar in your tea? I used to, but now Im on _ diet
2、. Im trying to lose weight. A. the; theB. 不填; a C. 不填; 不填 D. the; a3. Some people believe that robots will take over the world one day. What if that is the _? A. thingB. conditionC. case D. end4. _ was it _ they discovered the entrance to the underground palace? Totally by chance. A. How; that B. Wh
3、at; that C. When; when D. Where; that5. To be on the safe side, we should fill up the tank now, because we _ run out of gas on the way. A. could B. might C. would D. must6. I first met Mr. Smith in America. He _ at Stanford University then. A. studied B. has studied C. is studying D. was studying7.
4、I found _ flowers on my way to the countryside last weekend. A. some beautiful little redB. some little red beautiful C. some red little beautiful D. some little beautiful red 8. Only when the war was over _ to his hometown. A. did the young soldier return B. the young soldier returned C. returned t
5、he young soldier D. the young soldier did return 9. The ground is slippery. Hold on to the rope and dont _. A. put off B. turn up C. let go D. take apart10. I told you that you shouldnt waste your time playing the computer games, _? A. didnt I B. did IC. should you D. shouldnt you11. When caught _,
6、he begged for my pardon and tried _ punishment. A. stealing; escapingB. stealing; to escapeC. to be cheating; escapingD. to be cheating; to escape 12. _ there are only five minutes to go, Ill talk about the project short. A. As if B. Even if C. Because of D. Now that13. How will I _ you at the stati
7、on? Well, Im wearing a hat and Ive got a big black umbrella with me. A. recognize B. notice C. seeD. realize14. John, where are the cookies? Dont tell me you ate them all! _ I couldnt help it. They were so good. A. Yes, I did. B. No, I didnt.C. Yes, I have. D. Why? Sounds strange! 15. Coal is hard,
8、like a rock and yet it burns, while no rocks _. A. do B. does C. are D. isII. 虚拟语气专练（三）（每题1.5分，共30分）1. Hurry up, Michael! Its ten to three. Goodness me! The class _. Ill be late again.A. must begin B. may beginC. should have begun D. must have begun2. John saw a three-year-old child walking alone in
9、 a shopping mall, so he took the child home immediately and called the police. But he _ have waited with the child until the parents returned. A. shouldnt B. couldC. would D. might3. The headmaster suggested the student _ to be given a prize.A. refer B. referredC. referring D. would refer4. How coul
10、d I thank you enough? Dont mention it. Any other man _ that.A. must do B. could doC. would have done D. should have done5. _, but he insisted that he _ to school.A. Though he was ill; wentB. He was ill; go C. Having been ill; should goD. Having been ill; went6. She had a tense expression on her face
11、 _ she were expecting trouble.A. even though B. as thoughC. even as D. now that7. What will you do during the summer holiday?I dont know, but its high time _ something. A. Im deciding B. Ill decide C. I decided D. I decide8. You didnt invite Bill? _ him too? A. Must I inviteB. Must I have invitedC.
12、Should I inviteD. Should I have invited9. Look, Johns fallen asleep. Oh, he _ too late last night.A. might sit upB. should have sat upC. could sit upD. must have sat up10. I posted the letter a week ago. Then they _ the letter by now. It usually takes four days.A. can have receivedB. must receiveC.
13、should receiveD. ought to have received11. Tom insisted what he said _ true and we insisted that he _ and have a look.A. be; should goB. should be; would go C. was; goD. was; would go12. _ he come to see you? Of course, please. And Id rather he_ me the truth. A. Will; informB. Shall; toldC. Should;
14、will sayD. Can; spoke13. It is not like Jack to be unfriendly, so he _ you when you called.A. cant have seenB. should not have seenC. must not have seenD. need not have seen14. I regret not having taken your advice. Otherwise I _ this mistake.A. didnt makeB. would not makeC. hadnt madeD. wouldnt hav
15、e made15. Mary didnt turn up last time, did she? No. She_. We had changed our plan.A. shouldnt have comeB. neednt have to comeC. didnt need to comeD. neednt have come16. You _ this morning if you really wanted to see it yourself.A. ought to come B. may have comeC. ought to have come D. could come17.
16、 He paid for a seat when he _ have entered free.A. couldB. wouldC. mustD. need18. You cant imagine that a well-behaved gentlemen _ be so rude to a lady.A. mightB. shouldC. needD. would19. The weather turned out to be fine yesterday. I _ the trouble to carry my umbrella with me. A. should have takenB
17、. could have takenC. neednt have takenD. mustnt have taken20. The workers will go on strike if the demands they _ put forward are turned down. A. couldB. would C. /D. hadIII. 完形填空（每题2分，共40分） I was 11, and my family was preparing to leave the beautiful island, where we had lived for four years: my fa
18、ther was being transferred again. But I had constructed a mental wall against this unsettledness. My fascination with 1 provided me 2 an endless source of amazement. When I arrived on this little island, I discovered a variety of butterflies, and I began to 3 them. Catching butterflies isnt 4 , so I
19、 was proud of my collection. 5 there was one that I had yet to orange tip capture the great orange tip. The problem was its 6 habitat; I could only watch these lovely insects 7 gracefully. No matter how high I climbed, these creatures were always just. 8 my reach .With only a couple of days before w
20、e were to leave. I began to 9 hope of finding my great orange tip. One morning I was at leave to wander the bush keeping a 10 eye cut for my beauty. In the heat, butterflies of all sorts floated above the wildflowers on the hillsides. 11 , the great orange tips remained high above the treetops. But
21、then, I caught a flash of brilliant white out of the 12 of my eye. I looked up and there it was, about a meter away, 13 on a big red flower. I 14 in my tracks. After a long moment, I began to raise my net, little by little, 15 beating fast. I could scarcely believe my eyes. 16 I reached in and grabb
22、ed it, with every intention of moving it into the killing jar. But my hand 17 as I reached for the jar. There was the brilliant bloom of orange on the tips of its glowing white wings, and I could feel the creatures 18 between my fingers. And then , on an impulse (冲动), I tossed it into the clear, bri
23、ght air and watched it float away. High above the nearby trees it 19 and then disappeared from sight. 20 is like that.1 Atravel Bnature Cislands Dflowers2 Awith Bon Cof Dfor3 Anotice Braise Cdisplay Dcollect4 Ausual Bhard Ceasy Dfunny5 AAnd BBut CTherefore DBesides6 Ahigh Blong Cfast Doften7 Aflowin
24、g Bfloating Cjumping Drunning8 AbyBfor Cagainst Dbeyond9 Ahold up Bput up Cgive up Dkeep up10 Acareful Btearful Cgreedy Dsleepy11 AIn turn BIn common CAs well DAs usual12 Aedge Btouch Ccorner Dsight13 Agathered Bsettled Cperformed Dploughed14 Afroze Bpuzzled Cstared Drushed15 Athe tree Bthe net Cmy
25、heart Dmy hand 16 AGently BSeriously CLuckily DActively17 Arose Bfell Cstopped Dstretched18 Amovement Bexistence Cjoy Dfear19 Ahung Bstarted Cparked Dsailed20 AHelp BLove CInterest DSuccess参考答案I. 1-5 ABCAB 6-10 DAACA 11-15 BDAAA1. Enjoy yourself !是与仍在娱乐活动中的朋友分手道别时的用语，可译为“你好好玩吧！”2. 物质名词前一般不用冠词；be/go
26、on a diet为固定短语，意为“控制饮食，节食”。Do you take sugar in your tea?你喝茶加糖吗？3. What if that is the case?要是情况真是那样该怎么办呢？4. 题干为强调句型的特殊疑问句。5. to be on the safe side为慎重起见。might表示可能性推测。9. slippery(地面)滑的；hold on to抓住不放；let go放开，松手。11. when caught stealing相当于when he was caught stealing；try to escape punishment试图想逃脱惩罚。12. now that表示“既然”，引导原因状语从句。14. 此处couldnt help it意为“控制不了，没有办法”。15. do替代burn。II. DBBCB BCDDD CBADC CABCCIII. BADCB ABDCA DCBAC ACDDB