说明：本课程期末复习内容包括三局部:1.教材Unit 6，Unit 12，Unit 18三个复习单元；2.中央电大印发的?开放英语〔3〕期末复习指导?〔2021.4印刷版〕内一套样题和两套模拟题；3.英语II (1)期末复习提纲2021-6〔如下〕英语II〔1〕期末复习提纲2021-6一、交际用语1．－Excuse me, how can I get to the nearest supermarket? D－_______________.A. It’s not very far from hereB. The supermarket is very largeC. The goods there are very expensiveD. Sorry, sir. I’m a stranger here myself.2．I have an appointment with Dr. Johnson. C— ____________________.A. The appointment is put offB. You look sick and weakC. Please wait for minute. He is busy nowD. Tell me your ID number3．Afternoon, sir. Where to? A— ___________________.A. Please get me to the airportB. please pick me up next timeC. I’ve been to t he airportD. The plane will take off in an hour4．— Can I help you to get it down? C— .A. No problemB. Yes. Let’s get itC. Thanks. It’s so nice of youD. It’s no trouble at all5．—I’m trying to call Marie, but there’s no answer.D— .A. I didn’t realize thatB. Here is a message for herC. I’m really sorry about itD. Really? May be she’s out6．— Are you sure about that? D— .A. You needn’t worry about thatB. I like the idea.C. Oh, no. I’m afraid of thatD. Oh, yes. I’m absolutely positive7．— Would you like to see the menu? A— .A. No, thanks. I already know what to orderB. Your menu is very clearC. I hear the food here is tastyD. The setting is very comfortable8．— What if my computer doe sn’t work? B— .A. I’m not good at computerB. Ask Anne for helpC. I’ve called the repair shopD. There must be something wrong 9．—How’s the movie? Interesting? C— .A. It was shown late until midnightB. It was starred by a few famous peopleC. Far from. I should have stayed home watching TVD. I was seated far away in the corner10．— Is this the motel you mentioned? B— .A. It looks comfortableB. Yes, it’s as quiet as we expectedC. You’re so considerateD. No, the price’s reasonable11. —Hello, Sally. How’s everything? D— .A. Good for youB. Oh, I agreeC. That’s rightD. Just so-so12. — Excuse me, would you lend me your calculator? A— .A. Certainly. Here you areB. Please don’t mention itC. It’s nothingD. Yes, I have a hand13. —I don’t like the spo rts programs on Sundays. B— .A. So do IB. Neither do IC. So am ID. Neither am I14. —What’s the problem, H arry? D— .A. No problemB. No trouble at allC. Thank you for asking me about itD. I can’t remember where I left my glasses15. －Will you go on a picnic with us tomorrow? B－_______________.A. Yes, but I’ll have English classesB. Sorry, I have an appointment with Dr. BrownC. I’m afraid I have no ideaD. Neither am I16．－Would you like to have dinner with us this evening? B－_________________.A. I don’t knowB. Sorry, but this evening I have to go to the airport to meet my parentsC. No, I can’t17. — May I help you, madam? D— ______________.A. Sorry, I have no ideaB. Yes, I know what to buyC. You’d better give me a han dD. Yes, I’d like 2 kilos of oranges18．－May I know your address? A－_______________.A. Sure. Here you areB. I have no ideaC. It’s far from here19．－Can you turn down the radio, please? A－_________________.A. I’m sorry, I didn’t realize it was that loudB. Please forgive meC. I’ll keep it down next time20. —What about going for a walk? A—_______________.A. Why not? A good ideaB. That’s all rightC. So, do ID. Walking is good to you21. —Nice weather, isn’t it? C— .A. I’m not sureB. You know it wellC. Yes, it isD. Yes, it isn’t22. — Would you mind if I open the window for a better view? D— .A. That’s fine, tha nk youB. Yes, please.C. Take a seatD. Of course not23.－Hello, may I talk to the headmaster now? C－_________________.A. Sorry, you can’tB. No, you can’tC. sorry, he is busy at the moment24．－Oh, sorry to bother you. C－_________________.A. Oh, I don’t knowB. No, you can’tC. That’s okay二、词汇与结构1. --- What’s happened to Tom?D---__________to hospital.A. He’s takenB. He’ll be takenC. He’ll takeD. He’s been taken2. ---Which do you like better, real movies _______ cartoons? D--- I prefer cartoons ______ real movies.A. and, thanB. or, thanC. and, andD. or, to3. What a fool I have been! Why ______I think of that before? BA. don’tB. didn’tC. notD. do4. We must make a difference between ______ language and ______language. AA. spoken, writtenB. speaking, writtenC. speaking, writingD. speak, write5. We __________ every day when we were children. AA. used to swimB. used to swimmingC. use to swimD. use to swimming6. You must explain ______how they succeeded ________ the experiment. CA. of us, forB. at us, atC. to us, inD. for us, to7. You look _______. What ______ you ________? DA. tire, did…doB. tiring, have…doneC. tired, do…doD. tired, have…been doing8. Of all the stories here, I like this one ________. It’s not interesting at all. DA. mostB. bestC. worstD. least9. Before she left on the trip, she __________ hard. DA. trainedB. has trainedC. would trainedD. had trained10. He keeps _________ at himself in the mirror. BA. to lookB. lookingC. lookD. looked11. The sun heats the earth, _________ is very important to living things. CA. thatB. whatC. whichD. where12. If the man ________ succeed, he must work as hard as he can. BA. willB. is toC. is going toD. should13. Ancient Greece is the _________ of western civilization. AA. originB. sourceC. placeD. sources14. Please stop __________. It cannot help the situation. BA. to shoutB. shoutingC. to speakD. speaking15. The big man has always been eating on the go, _______ he has got stomachache. AA. soB. howeverC. asD. because16. Let me ___________ the case carefully before I draw a conclusion. BA. look upB. look intoC. look afterD. look out17. He, as well as I, __________ a student. DA. beB. amC. areD. is18. She _______ her success to hard work and strong will. CA. ownsB. givesC. owesD. regards19. Mr. Smith ________ a most important part in the development of our city. CA. tookB. hadC. playedD. made20. I’d rather stay at home than ________ a walk. CA. takingB. to takeC. takeD. to be taking21. Mother was busy. Although she was not watching the basketball on TV, she ______ it on the radio. AA. was listening toB. was hearingC. was listeningD. was seeing22. Hardly _________ home when it began to rain. AA. had I gotB. I had gotC. had I arrived inD. I had arrived at23. I prefer classic music __________ pop music. DA. thanB. onC. withD. to24. All the team members tried their best. We lost the game, _________. AA. howeverB. thereforeC. sinceD. as25. When we were having a meeting, the director _________ the bad news by telephone. BA. was tellingB. was toldC. could tellD. would tell26. Silk __________ by Chinese for thousands of years now. BA. has usedB. has been usedC. was usedD. is used27. You _______ to lock the door at night. BA. shouldB. oughtC. mustD. shall28. Before I got to the cinema, the film _________. AA. had begunB. has begunC. is begunD. was beginning29. The patient acted on the doctor’s _________ and finally r ecovered. BA. advicesB. adviceC. adviseD. advises30. A lecture hall is _________ where students attend lectures. CA. thereB. whichC. oneD. that31. Don’t worry, your watch _________ and you can have it in no time. DA. is repairedB. has been repairedC. was repairedD. is being repaired32. The definition leaves ______ for disagreement. BA. a small roomB. much roomC. great deal roomD. not so big a room33. Not always _________ they want (to). BA. people can do whatB. can people do whatC. people cannot do whatD. can’t people do what34. Sadam ________ for 25 years. BA. got marriedB. was marriedC. marriedD. were married35. I don’t want you to make any trouble, _________, I urge you to solve the problem. CA. thusB. consequentlyC. on the contraryD. just as36. Why ________ the old block of flats _________ demolished next month? BA. are…beingB. is…beingC. has…beenD. have…been37. In the fifties last century many new cities ________ in the desert. CA. bring upB. make upC. grew upD. build up38. More and more people in China now __________ to work regularly. AA. driveB. drivesC. droveD. have driven39. At present, the most important thing is that Britain needs _____ more to improve the relationship withthe USA. AA. to doB. doingC. to be doneD. do40. That’s all settled. It _____ talked about. DA. shouldn’tB. mustn’t beC. can’tD. needn’t be41. After ______ the shopping list, I found that I forgot to buy salt. CA. examiningB. testingC. checkingD. seeing42. Ann is studying ______ at university. BA. politicB. politicsC. politicianD. political43. After __________the bid, major construction began in Beijing. CA. winB. winingC. winningD. won44. Be sure to ______ your wife when you come here this evening. AA. bringB. takeC. getD. carry45. ---Can I get you a cup of tea? A---_________________________.A. That’s very nice of youB. With pleasureC. You can, pleaseD. Thank you for the tea46. Don’t worry. There is ______ room for all your books here. CA. moreB. muchC. enoughD. some47. ________fine weather it is! AA. WhatB. What aC. HowD. How a48. __________ for the Olympic Games begin about ten years in advance. CA. BidB. To bidC. BiddingD. To be bidden49. Everything ____________ if Albert hadn’t called the fire brigade. DA. will be destroyedB. will have been destroyedC. would be destroyedD. would have been destroyed50. Her parents died when she was very young, so she was ______by her aunt. AA. brought upB. brought outC. grown upD. grown51. ________ he said is quite right. BA. ThatB. WhatC. HowD. Why52. He kept the light in his room _______ the whole night. BA. burntB. burningC. burnD. to burn53. Time is money! We should ______ our time. BA. be fit forB. make good use ofC. play a part ofD. take the place of54. He has been _______ in hospital for a month. BA. dangerB. in dangerC. dangerousD. a danger55. He spends a quarter of the day ___________. BA. to sleepB. sleepingC. sleepsD. to sleeping56. It happened ________ a winter night. DA. atB. inC. byD. on57. If you _____ stop smoking, you can only expect to have a bad cough. CA. won’tB. wouldn’tC. don’tD. can’t58. It’s not safe ______ in the street. CA. to playB. play C, playing D. plays59. ______ it with me and I’ll see what I can do. DA. When leftB. LeavingC. If you leaveD. Leave60. I don’t suppose he will attend the meeting, ______? BA. won’t heB. will heC. do ID. don’t I61. I think all these are main points _______ much attention. BA. being worthy ofB. worthy ofC. which worthD. which worthy of62. They ______ the train until it disappeared in the distance. BA. sawB. watchedC. noticedD. observed63. I know it isn’t important but I can’t help ______ about it. BA. but to thinkB. thinkingC. toD. think64. Linda offered him her congratulations _______ his passing the college entrance exams. DA. atB. forC. ofD. on65. Mr. White has a wife and three children to _________. AA. raiseB. keepC. growD. take66. Mary forgot ______ a letter to her mother, so she wrote to her just now. BA. writingB. to writeC. having wroteD. to have written67. Not only I but also Jane and Mary _______ tired of having one examination after another. BA. isB. areC. amD. be68. Our plane _____ from London at 7:00 yesterday evening. AA. took offB. put offC. flew offD. left off69. On his first sea _________, he was still quite young but showed great courage to face the storm. DA. tripB. travelC. tourD. voyage70. She’s unlucky, and she’s always suffering ______ luck one after another.DA. a sickB. an illC. sickD. ill三、完型填空(1) 〔课本unit5〕Molly Wilson (16) a dancer and a mother for many years when she (17) to sail round the world to raise money for charity.As a child she (18) as a ballet dancer, but at 15 she had grown too tall for classical ballet, so she (19) a member of a pop dance team.She (20) , and (21) she had children she retired from show business to bring them (22) . They grew up, and when they were 18 they left home.She says, “When I decided to do the round-the-world race, my husband thought I was bored because the children had left home. He was also worried (23) I had never sailed (24) . I was not bored, but I (25) some people who told me about the race.They had taken part in it, but they had only done one section, say, from New Zealand to Australia. I wanted to do the whole ten-month journey.〞16. A. is B. was C. had been D. has been17. A. decides B. decided C. had decided D. has decided18. A. had trained B. had been trained C. was trained D. trained19. A. become B. had become C. has become D. became20. A. gets married B. got married C. was marrying D. had married21. A. before B. when C. after D. ----22. A. down B. in C. out D. up23. A. although B. however C. so D. because24. A. before B. ago C. since D. after25. A. met B. had met C. meet D. has meetKey:16. C 17. B 18. A 19. D 20. B 21. C 22. D 23. D 24. A 25. B(2) 〔课本unit 10〕A study (21) _____________ that fitness is the key (22) ______ long life, irrespective of body shape or even smoking habits. Researchers discovered that people (23) _________ exercise live longer than those who do not, (24) __________ they are overweight and smoke.The study found that the least fit of the 6,000 middle-aged men in the study were five times (25) _____________ to die within six years of the start of the research than the fittest. This was true whether or not the men had heart problems, smoked or (26) ______ overweight. Scientists concluded that it was better to be fat and active than skinny and sedentary. Dr Ken Cooper, a fitness expert, said, "You are better off smoking a packet of cigarettes a day and (27) __________ regularly than being a non-smoker and sedentary." Although he adds, " But don't misunderstand me. I am not endorsing smoking. I am trying to tell you how dangerous it is to be sedentary."(28) ________, the study appears to fly in the face of research last year which concluded that more than 30,000 people die prematurely every year in Britain from illnesses caused by being overweight.The British Government is putting pressure on manufacturers (29) ____________ high levels of sugar in food and to restrict the hard-sell of junk food to children in order to improve the nation's health. But the new study suggests the Government (30) __________ more people to exercise.21. A. showing B. show C. has shown D. had shown22. A. to B. for C. of D. in23. A. –(不填) B. which C. whom D. who24. A. if B. unless C. even if D. because25. A. like B. likely D. less likely D. more likely26. A. was B. were C. is D. are27. A. to exercise B. exercising C. exercise D. exercised28. A. However B. So C. Although D. Furthermore29. A. reduce B. reducing C. to reduce D. reduced30. A. encouraged B. encouraging C. to encourage D. encourageKey: 21. C 22. A 23. D 24. C 25. D 26. B 27. B 28. A 29. C 30. D( 3 ) 〔课本unit10，形考第二次作业，空格与前篇不同〕A study has shown that fitness is the key (21) _____ long life, irrespective of body shape (22) _____ even smoking habits. Researchers discovered that people who exercise live longer than (23)______, even if they are overweight and smoke.The study found that (24) ______ fit of the 6,000 middle-aged men in the study were five times more likely to die within six years of the start of the research than the fittest. This was true (25)_______the men had heart problems, smoked or were overweight. Scientists concluded that it was better (26)_______and active than skinny and sedentary. Dr Ken cooper, a fitness expert, said, “ You are better off smoking a packet of cigarettes a day and exercising regularly than (27)_______ a non –smoker and sedentary.〞Although he adds, “But don’t misunderstand me. I am not endorsing (28)_____, I am trying to tell you how dangerous it is to be sedentary.〞The British Government is putting pressure (29)_____ manufacturers to reduce high levels of sugar in food and to restrict the hard-sell of junk food to children in order to improve the nation’s health. But the new study suggests the Government should encourage more people (30)_____.21. A. for B. of C. to D. in22. A. or B. and C. but D. either23. A. those who does not B. these who do not C. these that do not D. those who do not24. A. the little B. less C. least D. the least25. A. that B. whether or not C. if or not D. when26. A. being fat B. to be fat C. to do D. doing27. A. being B. be C. to be D. is28. A. smoke B. to smoke C. smoking D. smoked29. A. on B. in C. to D. for30. A. exercise B. exercising C. to exercise D. exercisedKey:21. C 22. A 23. D 24. D 25. B 26. B 27. A 28. C 29. A 30. C(4) 〔课本unit 11，形考第三次作业〕Although international travel is usually an (21) __________ and pleasant experience, travellers should take steps to ensure that their health does not suffer either (22) ______ their time _____ the air or ______ their time abroad.Before you go, check with your doctor or local travel clinic (23) ______ injections are necessary for the areas you are traveling (24) _____. Allow sufficient time to have these injections before you (25) _______ because they may take time to become effective. Be sure that the information on health is up-to-date. Check on the Internet if you are not sure.Don’t go to bed late the day (26) _______ you fly.Your body has a natural daily sleep pattern. It takes time to adjust to a new time zone. There are many different (27) __________ of jet lag: you may not be able to sleep, you may not want to eat or you may feel sick and tired. You may not be able to concentrate for some days after you arrive.There are several things you can do to (28) ________ the effects of jet lag:－Do your (29) ______ to relax during the flight;－Sleep as much as you can on the flight. Use a mild sleeping pill if necessary;－Drink as much water as you can;－Don’t drink alcohol and caffeine;－Take mild sleeping pills (30) ______ the first few days in the new time zone if you need them.21. A. excited B. exciting C. excitted D. excitting22. A. of…on…of B. of…in…ofC. from…on…fromD. from…in…from23. A. where B. - 〔不填〕 C. which D. that24. A. - 〔不填〕 B. in C. to D. at25. A. will leave B. is leaving C. leave D. have left26. A. after B. in C. on D. before27. A. effects B. effect C. affect D. affects28. A. short B. shorten C. less D. lessen29. A. good B. better C. best D. most30. A. at B. for C. of D. onKey:21.B 22. D 23. C 24. C 25. C 26. D 27. A 28. D 29. C 30. B〔5〕〔课本unit 15〕Traffic in India means a mixture of all kinds of vehicles on the road. About 700,000 new cars (31) in India in the last twelve months, and about twice that many used cars have been traded.The country's 35 million motorcycles and scooters make it the world's largest two-wheel market. But because there are still big differences (32)___ people's incomes, the roads are full of a whole variety of(33) , lots of them not motorised.A ride (34) a taxi driver in New Delhi gives a flavour of a typical Indian-style traffic with all kinds of vehicle held up in city streets or in long lines (35)____ narrow country lanes. Cars, lorries and buses back up behind a cart (36) by one animal or another. "India has everything on the roads," the taxi driver says. "You have to (37) for pedestrians, bicycles, carts, cows, donkeys and even elephants. Three things (38) to drive here, a horn, brakes and good luck." Just then we were stopped (39) a young boy and his cow.Given the hazards, it's not surprising (40) special ceremonies are held for new car owners in which the steering wheel and the driver are both blessed.31. A. have been sold B. have soldC. have been sellingD. had been sold32. A. of B. over C. between D. in33. A. cars B. vehicles C. bikes D. motorcycles34. A. within B. after C. with D. in35. A. in B. on C. at D. above36. A. pulled B. pulling C. to pull D. pull37. A. wait B. search C. watch out D. listen out38. A. were recommended B. to be recommendedC. to recommendD. are recommended39. A. with B. by C. to D. after40. A. what B. why C. when D. thatKey：31. A 32. D 33. B 34. C 35. B 36. A 37. C 38. D 39. B 40. D四、阅读理解1．选择题(1) 〔课本unit 3，听力第二篇〕There have been changes in all sorts of different areas of British society. In recent years in the UK we have had a very large increase in the number of couples who get divorced.After 1969 and the Divorce Law Reform Act we had a very rapid increase in the number of divorces. The rate increased steadily and in recent years has increased much more rapidly. But there are also quite a lot of people who do actually get married. At present the marriage rate in the UK is about 70 per cent, which has gone down since the number of people who marry has gone down quite a lot in the last 20 years, but more significantly in the last 10 years. Quite high proportions of people now live together without marrying, and, for example, 40 per cent of children born in the UK are born to couples who aren't married or are born to lone parents. There are quite a large number of lone parent families, 90 per cent of these are headed by a woman rather than a man.The average family size now in the UK is 1.8 children per couple, which means that there's been quite a decline in the birth rate in the UK along with other European countries.1. What does the passage mainly discuss?A. The declining divorce rate in the UK.B. The declining marriage rate in the UK.C. The increasing divorce rate in the UK.D. Trends in marriage and divorce in the UK.2. During the last ten years, __________.A. the marriage rate has gone down more rapidly in the UKB. the marriage rate has gone up a lot in the UKC. 40% of children were born to unwed couples in the UKD. 40% of children were born to single parents in the UK3. According to the passage, the cohabitation rate in the UK tends to __________.A. declineB. soar (急剧上升)C. stay stableD. not mentioned in the passage4. According to the passage, which of the following statements is NOT true?A. The highest divorce rate was around 1969.B. The marriage rate has gone down in recent years.C. The marriage rate is currently 70 percent.D. 90 percent of lone parent families are headed by women.5. The last paragraph tells us __________.A. the birth rate in the UK is increasing at the momentB. at present any family in the UK is 2 children at mostC. the birth rate in other European countries keeps increasingD. the birth rate in the UK is decreasing rapidly nowKey: CABAD(2) 〔课本unit 5，形考第一次作业〕An Extraordinary Change of DirectionMolly Wilson had been a dancer and a mother for many years when she decided to sail round the world to raise money for charity.As a child she had trained as a ballet dancer, but at 15 she had grown too tall for classical ballet, so she became a member of a pop dance team.She got married, and after she had children she retired from show business to bring them up. They grew up, and when they were 18 they left home.She says, “When I decided to do the round-the-world race, my husband thought I was bored because the children had left home. He was also worried because I had never sailed before. I was not bored, but I had met some people who told me about the race.They had taken part in it, but they had only done one section, say, from New Zealand to Australia. I wanted to do the whole ten-month journey.〞Before Molly left she did a lot o f training, but it hadn’t prepared her for the worst weather which they experienced. She tells one story. “One night the sea was very rough and it was very cold. I had gone downstairs when a huge wave smashed into the boat and injured two men on the deck. One of the men couldn’t move because he had broken his leg. They were taken to hospital by helicopter. That was the worst time.〞By the end of October last year, she had raised more than £50,000 for charity.She says, “Sometimes I ask myself, what did I do? How did I do it? But then I think, it’s the same as being a dancer. Before I left on the trip, I had trained hard. I had got very fit and had prepared myself completely. Then on the trip I was simply a good team member.〞1. What does the word “extraordi nary〞mean in the title?A. very ordinaryB. very unusual and surprisingC. not specialD. extreme2. The sentence “…my husband thought I was bored …〞in Para. 4 meant that my husband thought I felt_________.A. dissatisfied because I had nothing better to do at homeB. annoyed because I had to wait long for my children to come back homeC. happy because I could do something I was interested in instead of taking care of childrenD. sad because all the children left me when they grew up3. The wor d “section〞in Para. 4 most probably means here _________.A. group of peopleB. part of the trainingC. part of the route of sailD. part of the job4. Which of the following is nearest (closest) in meaning to “rough〞in the sentence “One night the s ea was very rough …〞in Para. 5?A. not exactB. difficultC. not smooth because of huge wavesD. pleasant5. The last paragraph suggests that _________.A. the qualities she needed for the trip were the same as those for a dancerB. many years of dancing had already prepared her for the sail completely, so she needn’t do anything before the journeyC. she should be kind to other team members during the tripD. she should not forget dancing during the tripKey: BACCA〔3〕〔课本unit 8，形考第二次作业〕Did you know there are some very special dogs doing good work in our hospital wards? These are PAT 2 (Pets As Therapy) dogs. Doctors and nurses are recognising the benefits of pets more and more —particularly for children, people with mental illnesses and elderly people who are separated from their own pets or have had to give up their pets.Stroking and playing with a pet is a calming experience and something to look forward to. One hospital reported that a man with a mental illness, who hadn't spoken for years, first stroked and played with a visiting dog and then started talking to it.Today, around 4,500 dogs and 50 cats and their volunteer owners are at work in the UK bringing comfort and pleasure to over 100,000 people in hospital.There are many other ‘working dogs’5.There are guard dogs, police dogs, hunting dogs and dogs for the blind. Disabled people benefit greatly. Take the case of Alan Smythe6, who has to visit hospital every month. Some things7 are difficult for him because he is in a wheelchair. But his life has altered dramatically since he got a dog, Tess, from the charity 'Dogs for the Disabled'. ‘She helps me to get dressed, and she brings me my socks and shoes. She fetches the newspaper from the shop, and she passes me the phone when it rings. I feel so much better too. It's like having a really good friend. She comes with me to hospital. Once, she saved my life. I am a diabetic and one day my blood sugar level dropped, and when I was going into a coma she went next door and she alerted my nei ghbour. He gave me an insulin injection.’第一套题：1. Doctors and nurses think pets are particularly helpful for ______________.A.childrenB.people with mental illnessesC.old people who can’t live with their pets or have to give up their petsD.all of the above people2. Today __________ people in hospital get the help of dogs and cats and their owners.A. 4,500B. 50C. 100,000D. 10,0003. Alan got the dog from ___________.A. the hospitalB. the charityC. a shopD. his friend4. Which of the following that Tess CAN NOT help Alan do?A. Get dressedB. bring socks and shoesC. pass the phone when it ringsD. buy newspaper from the shop5. When Alan was going to a coma, Tess went to his _______’s home for help.A) neighbour B) doctor C) friend D) daughterKey: 1. D 2. C 3. B 4. D 5. A。
