大学英语专业四级词汇与语法模拟练习一
英语专业四级词汇与语法模拟练习一
英语专业四级词汇与语法模拟练习一1.____in the past, at the moment it is a favorite choice for wedding gown.A. Unpopular has as white beenB. White has been as unpopularC. Unpopular has been as whiteD. Unpopular as white has been2.____for a long time, the fields are all dried up.A. There has been no rainB. Having no rainC. There having been no rainD. There being no rain3. The millions of calculations involved, ____by hand, would have lost all practical value by the time they were finished.A. had they been doneB. they had been doneC. having been doneD. they were done4. Televisions enable us to see things happen almost at the exact moment____.A. which they are happeningB. they are happeningC. which they happenD. they have happened5.____me most was that the young boy who had lost both arms in an accident could handle a pen with his feet.A. That amazedB. It amazedC. Which amazedD. What amazed6. Although she wrote a lot of short stories and poems when she was very young, ____she was twenty five.A. her first real success did not come untilB. her real first success came until notC. since her first real success did not come untilD. not until her first real success7. You should know better than____ your little sister at home by herself.A. to leaveB. leavingC. to have leftD. left8. As the train will not leave until one hour later, we ____grab a bite at the snack bar.A. may wellB. just as wellC. might as wellD. as well9. She resorted to ____ when she had no money to buy foods for her children.A. have stolenB. stealC. stoleD. stealing10. The boy has admitted to ____ the window while playing football yesterday.A. breakingB. having been brokenC. breakD. be breaking11. Betty advised me to label our luggage carefully in case it gets ____in transit.A. misusedB. mishandledC. mistakenD. mislaid12.____money, she is quite rich. However, this does not mean that she is happy.A. ConcerningB. As toC. In terms ofD. In the light of13. A well written composition ____good choice of words and clear organization among other things.A. calls forB. calls onC. calls upD. calls off14. It is ____with the customer not to let the shop assistants guess what she really likes and wants until the last moment.A. in her honorB. on her honorC. a point of honorD. an honor15. This house will probably come on the ____next month.A. fairB. marketC. shopD. store16. George was introduced to ____activities at a young age, when she was hire to act as a lookout for drugdealers.A. illegalB. lawfulC. faithfulD. peaceful17. An institution that properly carries the name university is a more comprehensive and complex institution than any other kind of higher education____.A. settlementB. establishmentC. costructionD. structure18. People’s status in society is frequently ____by how much they own.A. measuredB. examinedC. testedD. questioned19. Jack is so ____to his appearance that he never has his clothes pressed.A. adverseB. anonymousC. indifferentD. casual20. There is an increasing ____to make movies describing violence.A. strengthB. directionC. traditionD. trend21. Outside my office window there is a fire ____ on the right.A. escapeB. ladderC. stepsD. stairs22. I ____with the Browns during my stay in New York City.A. put inB. put downC. put onD. put up23. Operations which left patients ____ and in need of long periods of discovery time now leave them feeling relaxed and comfortable.A. exhaustedB. unhealthyC. upsetD. fearful24. Farmers are allowed to grow small gardens of their own and they sell their vegetables ____ the black market.A. onB. atC. inD. for25. The electric fan does not work because of the ____of service.A. pauseB. breakC. interruptionD. breakdown试题答案与解析1. D) 【句意】虽然白色过去不受欢迎，但目前它是婚纱的首选颜色。
专业英语四级(语法与词汇)模拟试卷100(题后含答案及解析)
专业英语四级（语法与词汇）模拟试卷100(题后含答案及解析) 题型有： 4. GRAMMAR & VOCABULARYPART IV GRAMMAR & VOCABULARY (15 MIN)Directions: There are thirty sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence.1．Look at these clouds._____.A．It will rainB．It’s going to rainC．It will be rainingD．It is to rain正确答案：B解析：选项A中will表示一种意愿。
B项中的be going to do sth．表示目前已有迹象表明即将发生某种事情。
C项中使用了将来进行时，用来表示将来某一时刻或某一时期正在进行的动作。
D项中的be to do sth．表示一种按现在的计划或安排将要发生的动作。
知识模块：动词时态2．Our boss, Mr. Thompson,_____a raise in salary for ages, but nothing has happened yet.A．was promisingB．has been promisingC．has promisedD．is promising正确答案：B解析：这句话考的是现在完成进行时。
表示长久时间以来某件事情一直在发生，比现在完成时所能表达的延续的时间跨度更长。
知识模块：动词时态3．By the end of next month we_____this assignment.A．will finishB．will be finishingC．will have finishedD．have finished正确答案：C解析：by the end of next month(year)是将来完成时的典型状语，故选C。
2020年大学英语四级词汇和语法全真模拟试题及答案(共七套)
2020年大学英语四级词汇和语法全真模拟试题及答案（共七套）2020年大学英语四级词汇和语法全真模拟试题及答案（一）41. He ____have been nervous because he didn’t go straight in.A. ought toB. mustC. shouldD. had to42. I am quite sure that I can ____ Michael into letting us use his car tomorrow.A. speakB. talkC. tellD. say43. Jean could be a very attractive girl but she____to her cloth es. A. pays no attentionB. was paying no attentionC. paid no attentionD. had paid no attention44. When questioned by the interviewer, my mind went____, and I couldhardly remember my own date of birth.A. blankB. dimC. faintD. vain45. The textbook question as well as other issues is going to be discussed when the congress is in____again next spring.A. assemblyB. conventionC. conferenceD. session46. To drive a car safely, it is____good brakes.A. essential withB. essential havingC. essential to haveD. essential have47. As I regard it, you can widen the ____ of these improvements through your active participation.A. volumeB. dimensionC. magnitudeD. scope48. “Can you ride a horse?”“No, I never had the chance ____.”A. for learningB. for learning howC. how to learn itD. to learn how49. As electric lines were destroyed by the storm, they were forced to[CD#4] light for several days.A. go overB. go in forC. go withoutD. go out50. To survive in the intense market competition, we must____the qualities and varieties of products we make to the world-market demand.A. improveB. guaranteeC. gearD. enhance51. “Maria has blisters in her boots.”“She____walking such a long distance.”A. was used not toB. used toC. is not used toD. did not used to52. In ancient times people who were thought to have the ability to ____dreams were likely to be highly respected.A. impartB. inheritC. interpretD. intervene53. It was ____that we felt tired when we arrived.A. a so long travelB. such a long travelC. such a long journeyD. such a so long journey54.____his poor record in school, the board thinks that he should study hard.A. In spite ofB. In charge ofC. In view ofD. In case of55. “What authors do you like?”“Shakespeare is____.”A. favorite for meB. my favoriteC. for me the favoriteD. the favorite of mine56. We hadn’t expected a power cut so we were astonished when the whole house was ____into darkness.A. divedB. plungedC. drownedD. dropped57. Without a (an)____passport a tourist is forbidden to enter a country. A. operative B. effectiveC. validD. efficient58. Although the town had been attacked by the storm several times,____was done.A. a few damagesB. few damagesC. little damageD. a little damage59. Before the tourists set off, they spent much time setting a limit ____the expenses of the trip.A. forB. inC. toD. about60. “Tina looks especially pretty tonight.”“Yes, she always looks her best in ____of that color.”A. dressB. a dressC. that dressD. the dress61. Despite the wide range of reading material specially written or ____forlanguage learning purposes, there is yet no comprehensive systematic program for the reading skills.A. appointedB. assembledC. acknowledgedD. adapted62. Internet, a____of millions of computers linked world wide, is the largest system serving e-mail messengers.A. unityB. connectionC. networkD. combination63. “ How dark your brother’s hair is!”“It’s ____mine when I was at his age.”A. no darker thanB. no more darker asC. not dark more thanD. not darker as64. It was surprising that the hotel looked rather shabby outside was luxuriously and____ furnished inside.A. artificiallyB. arrogantlyC. arbitrarilyD. artistically65.____he daydreamed, Peter saw figures in the sky.A. UntilB. SinceC. WhileD. During参考答案41. 答案B【参考译文】他必定很紧张，因为他没有直接参加比赛。
专业英语四级考试词汇语法练习
专业英语四级考试词汇语法练习专业英语四级考试词汇语法练习11. I hope, when you finished this e*ercise,you____many mistakes in it.A. won’t makeB. won’t have madeC. won’t be makingD. won’t have been making2. ____he arrived at the airport, he realized what had happened there.A. The moment whenB. The momentC. UntilD. At the moment3. Water is to fish____atmosphere is to men.A. thatB. soC. whatD. so does4. I’m sure your suggestion will____the problem.A. contribute to solveB. be contributed to solveC. be contributed to solvingD. contribute to solving5. That our environment has little to do with our abilities, characters and behavior____central to his theory.A. isB. areC. has beenD. have been答案及解析： BBCDA1.【B】时态问题。
依据句意，主句的动作应在将来某一动作完成时完成，只有只有B的将来完成时较恰当。
2.【B】the moment这里做连词用，表示“就在……时，就在……的那一刻”，前面不需要加介词，如: Thunderous applause broke forth the moment the pop star appeared on the stage.3.【C】A is to B what C is to D是固定结构，表示“A与B的关系就像C与D的关系一样。
英语专业四级词汇与语法模拟练习解析
英语专业四级词汇与语法模拟练习全真模拟试题练习一1.____in the past, at the moment it is a favorite choice for wedding gown.A. Unpopular has as white beenB. White has been as unpopularC. Unpopular has been as whiteD. Unpopular as white has been2.____for a long time, the fields are all dried up.A. There has been no rainB. Having no rainC. There having been no rainD. There being no rain3. The millions of calculations involved, ____by hand, would have lost all practical value by the time they were finished.A. had they been doneB. they had been doneC. having been doneD. they were done4. Televisions enable us to see things happen almost at the exact moment____.A. which they are happeningB. they are happeningC. which they happenD. they have happened5.____me most was that the young boy who had lost both arms in an accident could handle a pen with his feet.A. That amazedB. It amazedC. Which amazedD. What amazed6. Although she wrote a lot of short stories and poems when she was very young, ____she was twenty five.A. her first real success did not come untilB. her real first success came until notC. since her first real success did not come untilD. not until her first real success7. You should know better than____ your little sister at home by herself.A. to leaveB. leavingC. to have leftD. left8. As the train will not leave until one hour later, we ____grab a bite at the snack bar.A. may wellB. just as wellC. might as wellD. as well9. She resorted to ____ when she had no money to buy foods for her children.A. have stolenB. stealC. stoleD. stealing10. The boy has admitted to ____ the window while playing football yesterday.A. breakingB. having been brokenC. breakD. be breaking11. Betty advised me to label our luggage carefully in case it gets ____in transit.A. misusedB. mishandledC. mistakenD. mislaid12.____money, she is quite rich. However, this does not mean that she is happy.A. ConcerningB. As toC. In terms ofD. In the light of13. A well written composition ____good choice of words and clear organization among other things.A. calls forB. calls onC. calls upD. calls off14. It is ____with the customer not to let the shop assistants g uess w hat she really likes and wants until the last moment.A. in her honorB. on her honorC. a point of honorD. an honor15. This house will probably come on the ____next month.A. fairB. marketC. shopD. store16. George was introduced to ____activities at a young age, when she was hire to act as a lookout for drugdealers.A. illegalB. lawfulC. faithfulD. peaceful17. An institution that properly carries the name university is a more comprehensive and complex institution than any other kind of higher education____.A. settlementB. establishmentC. costructionD. structure18. People’s status in society is frequently ____by how much they own.A. measuredB. examinedC. testedD. questioned19. Jack is so ____to his appearance that he never has his clothes pressed.A. adverseB. anonymousC. indifferentD. casual20. There is an increasing ____to make movies describing violence.A. strengthB. directionC. traditionD. trend21. Outside my office window there is a fire ____ on the right.A. escapeB. ladderC. stepsD. stairs22. I ____with the Browns during my stay in New York City.A. put inB. put downC. put onD. put up23. Operations which left patients ____ and in need of long periods of discovery time now leave them feeling relaxed and comfortable.A. exhaustedB. unhealthyC. upsetD. fearful24. Farmers are allowed to grow small gardens of their own and they sell their vegetables ____ the black market.A. onB. atC. inD. for25. The electric fan does not work because of the ____of service.A. pauseB. breakC. interruptionD. breakdown试题答案与解析1. D) 【句意】虽然白色过去不受欢迎，但目前它是婚纱的首选颜色。
英语专业四级词汇与语法模拟练习
英语专业四级词汇与语法模拟练习英语专四词汇语法专项练习模拟试题一1. It was requested that all of the equipment ____in the agreed time.A. erectedB. would be erectedC. be erectedD. will be erected2. The man sitting opposite me smiled dreamily, as if ____ something pleasant in the past.A. to rememberB. rememberedC. having been rememberedD. remembering3. I ____ him the Christmas gift by mail because he came home during the Christmas holidays.A. ought to have sentB. couldn’t have sentC. must have sentD. needn’t have sent4. It turned out that the children were not ____ for the accident.A. to blameB. to be blamedC. to be blamingD. to have been blamed5. The desegregation was achieved through a number of struggles, ____been mentioned in previous chapters.A. a few of whichB. a few of themC. a few of thoseD. a few of that6. Setting up a committee might be a way ____ the project more efficientlyA. to be doingB. doingC. to doD. being done7. It ____ to see so many children in that mountainous area cannot even afford elementary education.A. pains herB. makes her painC. is painingD. is pained8. Our boss, Mr. Thompson, ____ a raise in salary for ages, but nothing has happened yet.A. was promisingB. has been promisingC. promisedD. has promised9. He was determined to sail around the world ____ his illness and old age.A. givenB. althoughC. despiteD. in spite10. The board deemed it’s urgent that these invitations ____first thing tomorrow morning.A. had to be put in the mailB. must be put in the mailC. be put in the mailD. should have been put in the mail11. ____ drills that have no real topic have to remain as they are.A. ManufactureB. ManipulativeC. ManipulateD.Manifest12. This book has been in the works so long that I have lost ____ of most of the sources found for me by the staff of the library.A. traceB. trailC. TrackD. touch13. The elbows on your coat have worn thin, so I must ____ them.A. mendB. patchC. repairD. pitch14. ____ and wage increases have not kept in step.A. ProductionB. ProductC. ProduceD. Productivity15. People under stress have performed ____ feats of strength, like lifting an automobile off an accident victim.A. specificB. extraordinaryC. abruptD. abnormal16. Modern appliances ____ us from a good deal of household work. For instance, the dryer frees us from hanging the laundry.A. escape B .benefit C. liberate D. comfort17. The audience waited in ____ silence while their aged speaker searched among his note for the figures he could not remember.A. respectiveB. respectC. respectfulD. respectable18. The disappearance of her paper has never been ____.A. counted forB. looked upC. accounted forD. checked up19. When he was asked about the missing briefcase, the man ____ever seeing it.A. refusedB. deniedC. opposedD. resisted20. Communication between a young couple is a(n) ____business.A. sharpB. dreadfulC. intenseD. delicate21. After so many weeks without rain, the ground quickly ____the little rain that fell last night.A. skippedB. soakedC. retrievedD. absorbed22. We’ll ____ you as soon as we have any further information.A. notifyB. signifyC. communicateD. impart23. The fox fell into the ____ the hunters had set for it.A. bushB. trapC. trickD. circle24. I don’t know you want to keep the letter. I’ve ____ it up.A. tornB. givenC. brokenD. disposed25. The old lady ____ and fell from the top of the stairs to the bottom.A. slidedB. slippedC. splitD. spilled试题答案与解析1. C) 【句意】所有设备要求在商定的时间内安装完毕。
英语专业四级词汇语法练习题
英语专业四级词汇语法练习题英语专业四级考试中，词汇语法是其中最为重要的一类题型。
一般来说，在备考过程中，练习这一类题目的时间最多，因为词汇量和语法对于英语水平的考察非常关键。
本篇文章将为大家提供一些词汇语法练习题，并附上答案和解析。
希望对同学们的备考有所帮助。
Part 1：单选题1. The professor ______ the students not to use their cell phones during class.A. remindB. remindsC. remindedD. reminding答案：B解析：本句是指教授在课堂上提醒学生们不要使用手机。
由于主语是单数，所以应选择第三人称单数，即“reminds”。
2. John hasn’t been to the gym for a month. ______, he has gained a lot of weight.A. In factB. ThereforeC. HoweverD. Meanwhile答案：A解析：本句是在补充说明“John已经一个月没去健身房”，因此应选用“in fact”表示事实，强调说明他确实没有去健身房，并且由于没有锻炼就会增重。
3. The book was ______ and full of suspense, so I finished it in one sitting.A. excitingB. excitedC. excitableD. excitation答案：A解析：本句中想要表达这本书非常令人兴奋，让人想一口气看完，因此应选“exciting”。
4. The new device can ______ the amount of energy used by up to fifty percent.A. cut offB. cut downC. cut outD. cut up答案：B解析：本句中要表达的是这个新设备可以将能量的消耗减少到百分之五十左右，因此应选用“cut down”。
专业英语四级(语法)模拟试卷1(题后含答案及解析)
专业英语四级（语法）模拟试卷1(题后含答案及解析) 题型有： 4. GRAMMAR & VOCABULARYPART IV GRAMMAR & VOCABULARY (15 MIN)Directions: There are thirty sentences in this section. Beneath each sentence there are four words or phrases marked A, B, C and D. Choose one word or phrase that best completes the sentence.1．These statistics______birthrate in China per year.A．showB．showsC．is showingD．are shown正确答案：A2．Neither his colleagues nor his supervisor______about why he quit his job.A．know anythingB．knows somethingC．know somethingD．knows anything正确答案：D3．Twenty minutes______I can spare to be her company.A．are thatB．is thatC．are all thatD．is all that正确答案：D4．Almost every boy and girl in the club______of the choice of Alice as the candidate for the singing competition.A．approveB．is approvingC．approvesD．have approved正确答案：C5．The number of the abused kittens found at his house ______ seven.A．wereB．areC．have beenD．is正确答案：D6．Each penny and nickel______counted carefully by the cashier.A．areB．isC．wereD．are being正确答案：B7．It is understandable ______ has dreamed to become a movie star.A．many a girlB．a good many girlsC．a number of girlsD．many a girls正确答案：A8．Many a student and many a teacher in our university______to donate blood.A．decideB．have decidedC．are decidingD．has decided正确答案：D9．Despite the development of a vaccine, measles______ still a serious danger to adult victims.A．isB．areC．has beenD．was正确答案：A10．Bread and butter______liked by Westerners.A．isB．areC．wereD．be正确答案：A11．Mary, as well as her two sisters Sondra and Julia,______left-handed.A．isB．hasC．areD．have正确答案：A12．What I saw______two men attacking the policeman.A．wereB．wasC．hasD．has been正确答案：B13．The aged______now being provided with free medical care in this country.A．isB．areC．wasD．were正确答案：B14．It is futile to discuss the matter further, because______going to agree upon anything today.A．neither you nor I areB．neither you nor me amC．neither you nor I amD．neither me nor you are正确答案：C15．The statistics ______ that living standard in the area have improved drastically in recent times.A．provesB．is provingC．are provingD．prove正确答案：D16．All the President’ s Men______one of the important books for historians who study the Watergate Scandal.A．remainB．remainsC．remainedD．is remaining正确答案：B17．Our association, which has consistently pressed for greater employment opportunities for the disabled, will publish______ proposals in the near future.A．theirB．ourC．hisD．its正确答案：D18．None of these materials______conductors.A．isB．areC．had beenD．were正确答案：B19．More than one______dismissed from the company because of the financial crisis.A．have beenB．has beenC．areD．is正确答案：B20．Many a student in western countries______to speak Chinese.A．learnsB．learnedC．learnD．have learned正确答案：A21．John is the only one of the staff members who______ to be promoted. A．are goingB．is goingC．have beenD．has been正确答案：B22．What I think and what I seek______in my thesis.A．has reflectedB．have reflectedC．have been reflectedD．has been reflected正确答案：C23．If law and order______, neither the citizen nor his property is safe. A．are not preservedB．is not preservedC．were not preservedD．have not preserved正确答案：B24．The boy and the girl each______toys.A．has her ownB．has their ownC．have their ownD．have his own正确答案：C25．The president together with his family members ______ the party. A．have been asked to attendB．has been asked attendingC．are asked to attendD．was asked to attend正确答案：D。
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爱思英语学习网日期：2008-09-02 阅读4782 次作者:Ben 评论0条划词进入论坛投稿全真模拟试题练习一1.____in the past, at the moment it is a favorite choice for wedding gown.A. Unpopular has as white beenB. White has been as unpopularC. Unpopular has been as whiteD. Unpopular as white has been2.____for a long time, the fields are all dried up.A. There has been no rainB. Having no rainC. There having been no rainD. There being no rain3. The millions of calculations involved, ____by hand, would have lost all practical value by the time they were finished.A. had they been doneB. they had been doneC. having been doneD. they were done4. Televisions enable us to see things happen almost at the exact moment____.A. which they are happeningB. they are happeningC. which they happenD. they have happened5.____me most was that the young boy who had lost both arms in an accident could handle a pen with his feet.A. That amazedB. It amazedC. Which amazedD. What amazed6. Although she wrote a lot of short stories and poems when she was very young, ____she was twenty five.A. her first real success did not come untilB. her real first success came until notC. since her first real success did not come untilD. not until her first real success7. You should know better than____ your little sister at home by herself.A. to leaveB. leavingC. to have leftD. left8. As the train will not leave until one hour later, we ____grab a bite at the snack bar.A. may wellB. just as wellC. might as wellD. as well9. She resorted to ____ when she had no money to buy foods for her children.A. have stolenB. stealC. stoleD. stealing10. The boy has admitted to ____ the window while playing footballyesterday.A. breakingB. having been brokenC. breakD. be breaking11. Betty advised me to label our luggage carefully in case it gets ____in transit.A. misusedB. mishandledC. mistakenD. mislaid12.____money, she is quite rich. However, this does not mean that she is happy.A. ConcerningB. As toC. In terms ofD. In the light of13. A well written composition ____good choice of words and clear organization among other things.A. calls forB. calls onC. calls upD. calls off14. It is ____with the customer not to let the shop assistants guess what she really likes and wants until the last moment.A. in her honorB. on her honorC. a point of honorD. an honor15. This house will probably come on the ____next month.A. fairB. marketC. shopD. store16. George was introduced to ____activities at a young age, when she was hire to act as a lookout for drugdealers.A. illegalB. lawfulC. faithfulD. peaceful17. An institution that properly carries the name university is a more comprehensive and complex institution than any other kind of higher education____.A. settlementB. establishmentC. costructionD. structure18. People’s status in society is frequently ____by how much they own.A. measuredB. examinedC. testedD. questioned19. Jack is so ____to his appearance that he never has his clothes pressed.A. adverseB. anonymousC. indifferentD. casual20. There is an increasing ____to make movies describing violence.A. strengthB. directionC. traditionD. trend21. Outside my office window there is a fire ____ on the right.A. escapeB. ladderC. stepsD. stairs22. I ____with the Browns during my stay in New York City.A. put inB. put downC. put onD. put up23. Operations which left patients ____ and in need of long periods of discovery time now leave them feeling relaxed and comfortable.A. exhaustedB. unhealthyC. upsetD. fearful24. Farmers are allowed to grow small gardens of their own and they sell their vegetables ____ the black market.A. onB. atC. inD. for25. The electric fan does not work because of the ____of service.A. pauseB. breakC. interruptionD. breakdown爱思英语学习网日期：2008-09-02 阅读4782 次作者:Ben 评论0条划词进入论坛投稿试题答案与解析1. D) 【句意】虽然白色过去不受欢迎，但目前它是婚纱的首选颜色。
【难点】as是连词，引导让步状语从句时，往往使用半倒装形式。
又如：Beautiful as she is, she is foolish.2. C) 【句意】由于长时间无雨，田野变得十分干燥。
【难点】该句的前半部分是There be结构，完成式独立结构形式，这与时间状语fora long time相吻合。
3. A) 【句意】数百万次计算如果用手工操作，那么，到计算结束的时候，就将失去其全部实际意义。
【难点】这是一句虚拟语气的句子，条件句使用了省略if的倒装句形式，动作与过去事实相反。
4. B) 【句意】电视使我们能够在事情发生的那一瞬间就看到它们是如何发生的。
【难点】moment后接的是省略关系副词when的定语从句。
B)符合题意要求。
5. D) 【句意】最令我惊讶的是，这个在车祸中失去双臂的小男孩能够用脚使用钢笔。
【难点】这是一个what从句作主语的典型句子。
6. A) 【句意】虽然她很小的时候就写了很多短篇小说和诗歌，但她直到25岁才迎来第一次真正的成功。
【难点】这是一个练习not until结构的句子。
7. A) 【句意】你应该知道，不该把你小妹妹一个人留在家里。
【难点】to know better than to do sth.是一个常见的表示责备的句型，意为“应该知道不该做某事”。
8. C) 【句意】既然火车一个小时以后才开，我们不妨到快餐店吃口东西。
【难点】might as well后接动词原形，意为“不妨，何不”。