理工英语(单元自测)
理工英语1第1单元自测题库及答案国开大
• 题目：What are the benefits of taking理工英语1? 答案：Taking理工英语1 can provide students with the opportunity to develop their professional communication skills, increase their knowledge of English language and culture, and prepare them for further academic and career development. 解析： 学习理工英语1可以为学生提供发展专业沟通技能的机会，增加他们对英语语言和文化的了解，并为他们进一步的学术和职业发展做好准备。
• 答案：The main purpose of理工英语1 is to develop students' English language skills and enhance their ability to communicate effectively in English in various professional contexts.
02 d e s i g n
答案：design
03
题目：The _____ of the machine operation. 答案：maintenance
国家开放大学《理工英语4》形考任务1-8参考答案
国家开放大学《理工英语4》单元自测1-8参考答案单元自测1一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。
1、—I wonder if Icould use your tablet tonight?—________________. I’m not using it right now.a. It doesn’t matter.b. No, thank you.c. Sure, here you are.2、—Thank you ever so much for the Apple Watchyou sent me.— ________________a. No thanks.b. I’m glad you like it.c. Please don’t say so.3、—How is your business going?—_________________a. Good, it's growing all the time.b. Thank you.c. I’m going to Beijing.4、If you want to download this app, you need to connect your mobile phone _______ Internet first.a. tob. forc. with5、__________ this multimedia product has some shortcomings, it has also some good points.a. Whileb. Ifc. Not only6、—Do you mind my using my mobile phone here?— ________________.a. Yes, use it please.b. No, of course not7、—Oh. Dear! I’ve lost my new watch.—_________________a. I’m sad.b. That’s all right.c. What a pity!8、They are _______ make an announcement later on today.a. wish tob. expected toc. looking forward to9、So ________that millions of people queue to buy it.a. popularis the smartphoneb. popular the smartphone isc. the smartphone is popular10、The speed with which digital cameras can take, process and _______ an image is phenomenal.a. transmitb. transactc. translate11、Heremotelycontrols my mobile phone _______ he can set up it for me.a. thatb. so thatc. in order to12、My assistant will now______________ the machine in action.a. domesticb. demobilizec. demonstrate13、You will quickly get used to_______ this new digital camera.a. useb. usingc. be ran14、Considering the needsof the new generation, we propose the concept of the _______ network.a. wearingb. wearablec. weared15、_______, he knows a lot about computer.a. As he is a childb. Child as is hec. Child as he is16、The BBC has just successfully demonstrated a ________ radio transmission system.a. digestiveb. dignityc. digital二、阅读理解：这是客服人员帮助客服创建进入个人账户的场景，请在空格内填入字母将对话排序。
理工英语单元自测8
B. carry on
in their place. He is wearing his space suit undergarments. Not too
stylish but A. functional
. He gave all of us an extra long smell. His nose twitched
—
, especially for thrill-seeking travelers like me.
选择一项：
A. Spectacular
B. Fancy C. Spectral
你的回答正确
解析：第一说话人提到2024年太空或月球旅行将会成为人们最向往的旅游目的地，根据答者的 后半句话得知他是一个追求新鲜刺激的旅行者，可判断空格处应填表示“惊讶、非常好”等正面 积极的词语，spectacular表示“令人惊叹的”，fancy表示“花哨的，精致的，昂贵的”， spectral表示“光谱的”，所以答案是A。
4. 要表达“让某人做某事”，应用make + 宾语+ 不带to 的不定式，即make sb do sth, 但当改成被 动时，需要加to, 即be made to do sth. 并没有make sb doing sth这种说法，所以答案是C。
5. Turn up表示“（情况）突然好转；（机会）突然出现”，turn out表示“关掉，熄灭(电灯、煤气 等) ”，turn down表示“拒绝（提议或请求）”。根据上下文，宇航员们准备离开，后文又提到在太 空不应惧怕黑暗，因此该空应该选择B。
2. Functional表示“功能性的，实用的”，nonfunctional表示“无功能的”，conjunctional表示 “连结的，连接词的”。前句提到，园丁穿着太空服，不太时髦但…，三个词中，只有A符合题 意。
国家开放大学理工英语1单元自测
单元自测1一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。
1.Are you good at Building Materials, Rose?_______. But I will try to study it well this term.单选题(10 分)答案：B.Not very goodA.That's all rightB.Not very goodC.Quite well2.How are you?________单选题(10 分)答案：A.Fine, thanks.A.Fine, thanks.B.How do you do.C.Nice to meet you.3.Each apartment only__________15 to 30 square meters for one unit.单选题(10 分)答案：C.takesA.makeB.spendC.takes4.The __________ are eating _________ at the foot of the mountain.单选题(10 分)答案：A.sheep, grassA.sheep, grassB.sheeps, grassesC. sheeps, grass5. Could you please tell me something about the two_______?___________. They arc exchange students of No. 1 Middle School.单选题(10 分)答案：C.Germans; All rightA.Frenchmen; Yes, pleaseB.Germen; Not at allC.Germans; All right6.二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
国开形成性考核《理工英语(1)》单元自测(6)试题及答案
国开形成性考核《理工英语(1)》单元自测(6)试题及答案题目1、—We have to stay at home for a wholeday、Why not go out and have a walk? —〔C〕【A】：It like a good idea. 【B】：How is a good idea. 【C】：It sounds like a good idea.题目2、—A：are the most popular things peoplebuy online? —B： Definitely, clothes〔B〕【A】：How about 【B】：What do you think 【C】：How do you think 题目3、For days, smog persisted in many areas〔C〕China is to control air pollution.【A】：take measures 【B】：doing business 【C】：taking measures题目4、—〔A〕—I mean the best way is using your own mobile phone or puter to operate it.【A】：What do you mean? 【B】：What do you think? 【C】：How do you think?题目5、Cleaner heating system will in Beijing to control air pollution. 〔A〕【A】：be established 【B】：be sent 【C】：be covered题目6、I suppose you know everything about that event, 〔C〕 ? 【A】：do you 【B】：do I 【C】：don't you题目7、—A：are the most popular things peoplebuy online? —B： Definitely, clothes〔B〕【A】：Howdo you think 【B】：What do you think 【C】：How about 题目8、—We have to stay at home for a wholeday.Why not go out and have a walk? —〔A〕【A】：It sounds like a good idea. 【B】：How is a good idea.【C】：It like a good idea.题目9、〔C〕 is known to the world, Mark Twain isa great American writer、【A】：Who 【B】：That【C】：As题目10、—We have to stay at home for a wholeday.Why not go out and have a walk? —〔B〕【A】：It like a good idea. 【B】：It sounds likea good idea. 【C】：How is a good idea.题目11、Miss Liu doesn't mind 〔C〕 your homework as long as it is done by yourself.【A】：you to delay handing in 【B】：your delaying to hand in 【C】：your delaying handing in 题目12、Cleaner heating system will in Beijing to control air pollution. 〔C〕【A】：be sent 【B】：be covered 【C】：be established题目13、For days, smog persisted in many areas 〔A〕China is to control air pollution.【A】：taking measures 【B】：doing business 【C】：take measures题目14、I’ma business trip for APEC summit, sir 〔A〕【A】：on 【B】：in 【C】：for题目15、There is no doubt 〔B〕Herbert is the most industrious student in our class. 【A】：what 【B】：that 【C】：whether题目16、阅读理解：阅读下面短文，选择适宜的内容将短文补充完好。
2023年理工英语自测题库及答案国开大
第一单元自测题库一、选择填空：阅读下面旳对话或句子，从A、B、C三个选项中选出一种能填入空白处旳最佳选项。
1、--- Goodbye, everyone._______________——Bye, Sally! Don't forget to write.A. Just wait and seeB. Stay in touchC. Sounds great2、---How are you?—— _______A. Nice to meet you.B. Fine, thanks.C. How do you do3、The technological advances made it possible for the middle classes to enjoy what had once been ________ only to the very rich.a. measurableb. affordablec. manageable4、Tony has many Chinese ______.A. stampB. stampsC. a stamp5、 Let's meet at 7:30 outside the gate of ________.A. the People ParkB. People's ParkC. t he People's Park6、 --- Haven't seen you for ages, Mike. ________________--- Pretty good. Everything goes well.A. How are you?B. How's it going?C. What are you doing?7、---Can I help you, sir? ---I'd like to have 100 _____. I want my students to draw pictures.A. pieces of paperB. pieces of papersC. piece of paper8、The technological advances made it possible for the middle classes to enjoy what had once been ________ only to the very rich.a. measurableb. affordablec. manageable9、---Hello, I'm Harry Potter.---Glad to meet you. I'm Miller. But __________.A. call me Paul.B. call my Paul.C. call me at Paul.10、-- Could you please tell me something about the two_______?--- ________. They are exchange students of No. 1 Middle School.A. Frenchmen; Yes, pleaseB. Germans; All rightC. Germen; Not at all11、I hope you'll ________working with us in the future.A. achieveB. applyC. enjoy12、---Are you good at Building Materials, Rose?---_______. But I will try to study it well this term.A. Quite wellB. That's all right13、To solve this problem, New York city planners are challenging tradition and starting to _________more "micro units".A. inventB. designC. create14、Now this tiny housing solution is ______________ in urban areas in the U.S., and Canada.A. gain ground onB. gain groundC. gain ground upon15、---Hello, I'm Harry Potter.---Glad to meet you. I'm Miller. But __________.A. call my Paul.B. call me Paul.C. call me at Paul.16、---Are you good at Building Materials, Rose?---_______. But I will try to study it well this term.A. Quite wellB. That's all rightC. Not very good17、The __________ are eating _________ at the foot of the mountain.A. sheeps, grassB. sheeps, grassesC. sheep, grass18、Each apartment only_______15 to 30 square meters for one unit.A. spendB. takesC. make19、I hope you'll ________working with us in the future.A. achieveB. enjoyC. apply二、阅读理解1：阅读下面旳短文，根据文章内容从A、B、C三个选项中选出一种最佳选项。
理工英语单元自测
理工英语3自测7项..In 1909 an English newspaper offered ￡ 1;000 to the first man to fly across the English Channel in an aeroplane. Today; modern jets cross it in minutes. But at that time it still seemed a good distance. The race to win the money soon became a race between two men. Both were very colorful.One was Louis Bleriot. He owned a factory in France that made motor car lamps. He was already well known as a pilot because he had had accidents several times. Some people laughed at him. One man said; “He may not be the first to fly across the Channel but he will certainly be the first to die in an accident”But Bleriot was really a good and brave pilot. He also had many good ideas about aeroplane design.The other man was Hubert Latham. He was half French and half English. He took up flying when his doctors told him he had only a year to live. “Oh; well;” he said; “if I'm going to die soon; I think I shall have a dangerous and interesting life now.”Latham was the first to try the flight across the Channel. Ten kilometres from the French coast; his plane had some trouble. It fell down into the water and began to sink under the water. A boat reached Latham just in time. He was sitting calmly on the wing and was coolly lighting a cigarette. Bleriot took off six days later. He flew into some very bad weather and very low cloud. He somehow got to the English side and landed in a farmer's field. When he did so; a customs 海关 officer rushed up to his plane. Planes have changed since then; but customs officers have not. “Have you anything to declare ” The officer demanded.1. The story took placeA. in the early 20th centuryB. in the 19th centuryC. at a time not mentioned in the passage2. Bleriot was well known as a pilot becauseA. he was unusually braveB. he had many good ideas about aeroplane designC. he had had a few accidents3. Why did Hubert Latham want to fly across the ChannelA. He thought he could manage it easily.B. He knew he only had a year to live.C. He had always been interested in flying.4. Why did the customs officer rush to the planeA. To ask if Beriot had anything to declare.B. To make sure that the pilot was not hurt.C. To ask why the plane had landed in a farmer's field.5. “Do you have anything to declare ” meansA. “Do you want any help ”B. “Is there anything wrong ”C. “Have you brought anything on which custom duties must be paid ”答案：B C B A C二、听力理解：请听下面的对话;根据对话内容进行判断;正确为“T”;错误为“F”..进度: 0%1. Henry thinks the transportation system is simple.2. Julie believes more roads should be built and there will be fewer traffic jams.3. According to Henry; people should be encouraged to use cars.4. Both Henry and Julie agree that people should pay tax for using cars.5. According to Henry; people will be in favor of using cars less to make the air cleaner.答案：F T F F F二、完型填空：阅读下面短文;从A、B、C三个选项中选择合适的内容将短文补充完整.. You jump into a car; tell it where you want to go then sit back and let a computer take control. It seems a dream in the future. It isn't.In many ways such driverless cars are already with us. There is partial automation in many cars; such as intelligent braking; lane departure warning and automatic parking. The systems are therecars can pretty much drive themselves. No one noticed the introduction of cruise control. We've got collision avoidance; and we'll soon have automatic lane change.Improving this technology should make the roads safer. Machines are much better at following rules than humans. Driveway signs advise drivers to slow down to avoidjams. They are often ignored by drivers. But it won't happena computer. Driverless cars could also choose the best route to avoid traffic jams.Fewer jams will meanstop-start driving. Maintaining smooth and constant speeds will improve fuel efficiency. Computers could also be programmed to take the greenest route;rather than the fastest one. Under computer control; cars could also travel much closer together.They can effectively “slipstream” one another and use less fuel to move themselves forward. They can even form multi-car “trains” goinghigh speeds. However; with driverless cars on the roads; there will be potential trust issues between people and machines. We could therefore see guard rails back on the sides of pavements. This would be a backwards step.1. A. because B. so that C. such as2. A. creating B. to creat C. creat3. A. with B. to C. on4. A. more B. little C. less5. A. over B. in C. at答案：B A B C C。
国开形成性考核04008《理工英语(4)》单元自测(8)试题及答案
开形成性考核【理工英语⑷】单元自测(8)试题及答案(课程ID: 04008,整套相同，如遇顺序不同,Ctrl+F查找，祝同学们取得优异成绩！)题目1、( C ) by the promise of these tiny tubes, people are alreadyworking to turn the Space Elevator into a reality.[A]: To fuel: Fueling[B]: Fueled题目2、一According to a report of what holidays in the future might look like； a trip to the Moon or a stay in space will be the most mouthwatering destination for 2024 holidaymakers.(A ) , especially for thrill-seeking travelers like me.[A]:Spectacular: Fancy [C] : Spectral题目3、— How do you like Anne Hathaway-(B).[A]:She is an American actress[B]:She is amazing[C]:She's already married题目4 Let's go to this movie and see what exciting experience it will bring to us.-(C)[A]:You are such a great fan.[B]:I am more interested in the film director.[C]:Can't wait to watch it.题目5、一Space travel must be very very expensive.一(B ) .The cost of a seat on the Virgin craft is $ 250, 000.[A]:That's not true.[B]: Of course.[C]: Why do you think so ?题目6、一You need to believe that space tourism will grow and getcheaper.Maybe there is another option.-(B).[A]: How is it ?[B]: What is it ?[C]: Where is it ?题目7、Absolutely, that movie ( C ) and I must admit that its directoris brilliant.[A]:held my breath[B]:caught my breath[C]look my breath away题目8、Everything we do has the potential ( C ) creating some bad.[A]: to: in[B]: for题目9、I think the benefits of opening up space far ( B ) the damage that we can see.[A]: outwit: outweigh[B]:outwear题目lOx If Gardener ( A ) , who will take care of us ?[A]: leaves: will leave[B]: left题目11、Our part of the mission is nearly complete and the new crew will (A) for us.[A]: take over: take out[B]: take off 题目12、The atlas is normally kept by the big window but now it is(A ) to the wall right next to Broccoli.[A]: struck: stuck[B]: take off题目13、There will be a space hotel in Barcelona Island, ( B ) you can experience space travel by viewing lifelike galaxies through cabin windows.[A]: when: where[B]: which题目14、When we were students we ( B ) often stay up all night[A]: will: would[B]: should题目15、You ( C ) the Inception z since I remember once you discussed its main plot with Cathy.[A]:could have watched:should have watched[B]:must have watched 题目16、阅读理解:阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。
2023秋季学期国开电大专科《理工英语1》在线形考(单元自测3)试题及答案
2023秋季学期国开电大专科《理工英语1》在线形考单元自测3 试题(题库)及答案说明：资料整理于2023年11月。
学员抽到的每套试卷均为随机组合；但抽到试卷中的所有试题均在下列题库中可以找到原题及答案！！第一大题：选择填空（每题10分，共5题）从下列题库中抽2-Don’t forget to come to our party this weekend!-_______________.[答案]B.Sure.See you.-We’d be pleased if you could join us for dinner.-_______________.[答案]C.Yes, I’d be pleased to accept.-We’ve booked a table.We hope you can join us?-_______________.[答案]C.How can I resist such a gracious invitation!-why not dine out together and go to the movies?-_______________.[答案]C.Sounds like a good idea.-Would you care to join for the picnic tomorrow-_______________.[答案]A.So sorry.Next time we’ll go, thanks anyway.-Do you like reading books?-Yes.Each of us_________to do more reading in and after class.[答案]A.is encouraged从下列题库中抽3I’d love to________with you my new kitchenware.[答案]C.shareIt is called solar cooker,a newly designed cooking device and there are many kinds of solar cookers____.[答案]B.availableIt was_______to see the students’excitement when they discovered that simple materials could be used to cook food under the sun and the solar cooking really attracts those creative kids.[答案]B.amazing1。
理工英语单元自测7
●Another major advantage of such type of foods is that they grow faster than their traditionally
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3/5
2020/6/21
单元自测7（10分）
●Another major advantage of such type of foods is that they grow faster than their traditionally
grown counterparts. As a result, there is greater productivity and more food.
●Chances of developing cancer are high in people who regularly consume engineered food.
●Since it is an unnatural way of producing foods, there is an increased health hazard such as allergens, transfer of antibiotic resistance markers and unknown effects.
题目2
正确 获得10.00分中的10.00分
— I think the other reason can be identified from the industrialization of food production.
—
. Some illegal traders care about nothing but making money.
[2024版]国开电大专科《理工英语2》在线形考(单元自测1)试题及答案
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[2024版]国开电大专科《理工英语2》在线形考说明：资料整理于2023年12月；适用于国开电大专科学员一平台在线形考考试。
单元自测1 试题及答案备注：测试中共有6道随机题，其中有5道选择题和1道完形填空题。
第一大题：选择填空（每题10分，共5题）从下列选择题库中抽2―_________________.―I’m very glad to hear that.[答案]B.I’m sure to come on time―Do you like your present job?―_________,I just do it for a living.[答案]C.Not really―How was your job interview last Monday?―_________.She seemed interested in my working experience,but she didn’t ask for references.[答案]B.I’m not sure―I believe we’ve met somewhere before.―No,_________.[答案]C.I don’t think so―Welcome to our company.I hope you will enjoy your work here.―_________________.[答案]A.I am sure I will―How’s your report _________?―Not too bad,I have already done about 4000 words.[答案]ing along从下列选择题库中抽3Both her parents look sad.Maybe they_________what’s happened to her.[答案]B.have knownHe has studied very hard_________he came to our school.[答案]C.sinceI know a little bit about France as my wife and I_________there several years ago.[答案]B.went1。
国开形成性考核《理工英语(1)》单元自测(2)试题及答案
国开形成性考核《理工英语(1)》单元自测(2)试题及答案（整套相同，如遇顺序不同，Ctrl+F查找，祝同学们取得优异成绩！）题目1、— Which city has （A）population, Beijing, Guiyang or Nanchang? — Beijing, of course.【A】：the largest【B】：the most【C】：the smallest题目2、——What's your present job?——（A）【A】：I'm a film-maker.【B】：I just graduated from college.【C】：I am 24 years old.题目3、But the Bridge was first （A）to the public, almost one year later, after a series of tests andevaluations.【A】：open【B】：use【C】：lead题目4、The walls function like a dam to keep the water （C）and the structure lies naturally within its surroundings, remaining invisible from a distance.【A】：in【B】：of【C】：out题目5、—— Excuse me、You must be Mr、Liu Hua from China? ——（A）【A】：Yes, nice to meet you.【B】：How do you do?【C】：Thank you.题目6、You know, this bridge （A）Hong Kong, Zhuhai and Macau. 【A】：connects【B】：likes【C】：comes题目7、—— Have you had a nice journey?——（A）【A】：Sure【B】：Indeed, it’s been a very nice journey.【C】：You are welcome.题目8、——I’m so excited to meet you、May I introduce myself to you? ——（A）【A】：Sure.【B】：You are welcome.【C】：Nice to see you.题目9、—— Thanks for all the information, Peter、It sounds like you have an interesting job——（A）【A】：Yes, it's very interesting, but stressful, too!【B】：Yes I love my job【C】：I work for the ABC company.题目10、— Sonia, do you think you are different from Linda?— Yes、I'm （A）at drawing than her.【A】：better【B】：good【C】：well题目11、But the Bridge was first （A）to the public, almost one year later, after a series of tests andevaluations.【A】：open【B】：use【C】：lead题目12、Tom is（A）than any other players in the school team、【A】：taller【B】：tall【C】：tallest题目13、翻译：从以下A、B、C三个选项中选出与英文最适合的中文翻译。
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理工英语3自测5二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“T”，错误为“F”。
It is amazing to note that the Internet is still such a new device，and yet it is one of the fastest and most powerful media tools. But think about it for a moment. On the Internet，a big online company can be run by only two guys in their garage. So it is only reasonable then，that people shopping online would bea little leery of the security levels.Internet giants such as Microsoft knew consumer confidence was the key to getting virtual(虚拟的) shopping off the ground，and they work hard to make people feel safe to shop online.Credit card companies，too，quickly saw the potential for online shopping，and have installed things like online shopping insurance for people. If you ever have a problem with your online credit purchases，many credit card companies will happily refund(退还) your money and then set their claws on the company that wronged you. Now that's buying power!There are other bonuses for online shoppers，of course. No lineups，for one. No annoying mall shopping carts with broken wheels and kids crying because their parents won't get them what they want.When shopping online，consumers can sit down，have a coffee，and wear their slippers，not having to worry about their hair or parking，and just clicking through sale after sale. Comparison shopping couldn't be any easier. And thanks to courier companies(快递公司) getting in on the act，you never need to wait longer than a day or two to get those all important purchases delivered right to your door.No wonder so many companies are shaking their heads at traditional retailing and instead looking to the “virtual”world to attract online shoppers.1．The underlined word “leery”in the first paragraph means being very sure.2．Consumer confidence in online shopping mainly relies on security in shopping.3．Internet giants, traditional retailers, courier companies and credit card companies have made contributions to the popularity of online shopping.4．The author think of the current online shopping as safe, convenient and fast.5. Nowadays many companies are trying to cooperate with the online shoppers instead oftraditional retailers.答案：F T F T T二、阅读理解：阅读下面的短文，根据文章内容从A、B、C、D三个选项中选出一个最佳选项。
While there are still many people who don't feel comfortable using a credit card to buy over the Internet, e-commerce is absolutely here to stay. If you take a few precautions buying over the Internet can actually be safer than using your credit card in a restaurant.Just as you should notice your surroundings and suspicious-looking people when withdrawing (提取) money from an ATM, you should know how to recognize the warning signs of Internet tricks and take steps to avoid being a victim when shopping online. Here are some good tips to remember when shopping online:Before submitting your personal information to a site, try to find out how the information may be used and whether it will be sold to or shared with other businesses. If you don't like what you read, shop somewhere else.Don't provide personal information such as address , telephone number, social security number , or e-mail address unless you know who you are providing the information for, why it' s being requested , and how it will be used .Use a credit card, not a debit card (借记卡) for shopping on the internet. Debit cards don't have the same protection as credit cards.Carefully review your credit card and bank statement each month for unknown charges and inform your credit card company or bank immediately if you notice any charges you didn't know about.Clean your computer with free online software that detects spy-ware and install a firewall (防火墙) to ensure the sites you shop on don' t install spy-ware on your computer.1. While shopping online, you shouldA. be sure nobody is standing beside youB. only shop at the site that you have often visitedC. find out how the personal information willbe usedD. never provide personal information2. According to the passage, if you find your credit card has unexplained charges, you shouldA. tell your credit card company as soon as possibleB. change your credit card code number immediatelyC. check all the websites you have visitedD. use a debit card instead of a credit card3. The underlined word "precaution" in Paragraph One means something done toA. make suspicious—looking people go awayB. protect you against loss or possible dangersC. remind you to obey the rules when sopping onlineD. avoid being cheated when eating in a restaurant4. What is not advised by the writer when shopping online?A. Using credit cards.B. Installing a firewall.C. Visiting famous websites.D. Being very careful.5. What' s the writer' s purpose in writing this passage?A. To suggest a new way of shopping.B. To tell us the advantages of shopping online.C. To tell us how to shop safely online.D. To tell us how to avoid being cheated.答案：C A B C C二、听力理解：请听下面的对话，根据对话内容进行判断，正确为“T”，错误为“F”。