高三英语一轮复习Unit3Computers课时作业新人教版必修2

课时作业(八)Ⅰ.1.D考查交际用语。

句意为：“很抱歉，我未能按时完成它。

”“无论如何我还得谢谢你。

”D项符合语境。

A项为见面打招呼用语；B项在表示委婉拒绝时用；C项在表示非常感谢时用，均不符合句意。

2．C考查副词辨析。

句意：也许，从现在起他真应该多锻炼。

不管怎样，我希望他能很快恢复过来。

somehow “由于某种原因”；somewhat “有点；稍微”；anyway “不管怎样；无论如何”；anywhere “在任何地方”。

故C符合题意。

3．A watch over “照管”。

句意为：我去游泳，你帮我看一下衣服好吗？其他选项均不符合句意。

4．B考查短语辨析。

出了重大事故放长假，也就是说(换句话说)，他被开除了。

前后句子从逻辑上讲不存在因果关系或者转折关系。

5．A考查动词的时态和语态。

Italian Luca Parmitano 和select 是被动关系，故排除B，C。

根据句意，表示过去的动作“已经被选入……”对现在的影响，故用的是现在完成时的被动语态，故选A。

6．A考查交际用语。

由答语中的not me可以看出，他不想去，所以选择A项，这是一句美式俚语，意为“我不喜欢这个东西”或者“它不适合我”。

7．D考查词汇辨析。

as作“随着”解为连词，引导时间状语从句。

with 是介词，不能引导从句。

8．A考查时态、语态和主谓一致。

答话人之所以让对方删除手机上要求汇款的信息是因为到目前为止已经有很多人上当受骗，所以用现在完成时的被动语态，排除C、D两项；many a表示“大量”，修饰单数可数名词，谓语动词用单数，故排除B项选A项。

9．C考查as a result的用法。

as a result意为“因此，所以”，单独使用，表示后句是前句的结果；而however表示转折，moreover, furthermore表示递进，不符合语境。

10．D考查such a＋adj.＋n＋that结构。

注意，如果把A项中的a 放到well-known后也是正确的。

Unit 3 Computers[基础回顾]Ⅰ.单句语法填空(导学号02516066)1．If you are not totally (total) satisfied，return it at our expense.2．A man stood up and crossed his arms over his head，signaling (signal) that he was strongly opposed.3．With many problems arising(arise)，he didn't know what to do next.4．Personally(person) speaking，I am satisfied with all the work you have done.5．Money does not always bring happiness (happy)，but without it people often can't live well.6．This question is too difficult for the children.I think we'd better find a way to simplify (simple) it.7．After graduating from the college，he made an application (apply) to the school for a job as a teacher.8．I was told the Learning Center provides help for students and I'm anxious to get help from you.9．The students are looking forward to having an opportunity to explore (explore) society for real­life experience.10．With global warming becoming more and more serious，it won't be long before some coastal cities disappear.Ⅱ.单句改错(每句一错)(导学号02516067)1．It won't be long before we will know the result of the experiment. 去掉will2. In the way，I'm glad you made that mistake，for it will serve as a warning toyou.the→a3．The environment of Hong Kong is very outstanding that it is chosen as one of the world's most livable cities. very→so4．Can you give me some advice on what to deal with this difficulty？what →how或deal→do5．He has been ill for a long time；as a result of，his heart is slightly damaged. 去掉ofⅢ.佳句写作(导学号02516068)1．他是一位如此聪明的男孩以至于我们都喜欢他。

课时作业(八) Unit 3 ComputersⅠ.用所给词的适当形式填空1.It has been________(calculate) that eighty percent of the middle school students can be admitted into colleges.2.________(person)，I'm content with what you did.3.Children like to read the________(simple) English stories.4.When________(ask) for his view about his job，he said that he found it interesting.5.Great changes have taken place in scientificand________(technology)development in our country.6.The________(apply) of robots makes difficult jobs easier to do.7.Though the problem given by the teacher was difficult，the boy said that he could find the________(solve)to it.8.He is a student with great________(intelligent)，so I think he can do it well.9.You needn't worry about your________(appear)—you look fine.10.I was________(total) confused by what she said.答案：1.calculated 2.Personally 3.simplified 4.asked5.technological6.application7.solution8.intelligence9.appearance 10.totallyⅡ.完成句子1.It is a long time since they separated，but________________(不久)they meet again.2.People can calculate on computers__________________(解决各种问题)such as exploring the moon.3.On the contrary，I find her quite__________________(容易相处)．4.Even though they__________________(几乎没有相同之处)，they get along well with each other.5.__________________(随着科学与技术的发展)，we have a much higher standard of living.6.The problems between parents and children have__________________(缺乏交流引起的)．7.—Do you know how many students took part in the sports meet？—About 400__________________(加起来)．8.When I am back to school from sick leave，I will__________________(弥补) the missing lessons.答案：1.it won't be long before 2.to solve all kinds of problems 3.easy to deal with 4.have little in common5.With the development of science and technology6.arisen from lack of communication7.in total8.make up forⅢ.阅读理解A(2015·郑州高三质量检测) Think about how many ways there are for you to communicate today.You can send a letter or pick up the phone and make a call.But today，one of the most popular ways to communicate is called instant messaging (IM)．In any instant messaging system，you type a little text message on your computer，press the“Send”button，and your message instantly shows up on your friend's screen.But how does it work？Actually，the whole process is very cool.In the 1980s，you could sit down at a computer at any big university.Up to100 people would be logged in and share the computer becausethese computers were very expensive.You could type a commandto send an instant message to anyone logged in the samecomputer.It felt like everyone was connected together no matter where they were sitting.Today，you can communicate with anyone in the world.All you need is an instant messaging program installed on your computer.There are many programs to choose from.AOL's instant messenger is probably the most popular right now.MSN has one.Google has Google Talk.When you're ready，you create an account.Next，you need to figure out the IM names your friends use.Add their IM names to your IM program.Click on the friend you want to talk to an d then type away.When you click“Send”，your friend gets the message instantly.But behind the scenes，amazing things are happening.Your IM program is communicating with a computer，called a server，which could be just down the road or even in some other city.All your friends' computers are communicating with a server，too.Your computer is constantly chatting with it to make everything happen.The network called the Internet makes it all possible.语篇导读：本文是一篇说明文，主要介绍了目前网上最流行的交流方式——即时通信。

【春走向高考】高三英语一轮复习 Unit 3 Computers练习新人教版必修2Ⅰ.语法单句填空1．(2021·湖南改编)You must learn to consult your feelings and your reason ________ you reach any decision.答案：before考查连词与状语从句。

句意：在做任何决意前，你必然要学会考虑本身的感触感染与理智。

before在……之前，引导时间状语从句，符合题意。

2．Brushing straight after a meal may damage the top of your teeth；________ a result, you may feel pain when eating.答案：as句意：饭后立即刷牙会对牙齿表层造成伤害，结果是吃饭时会感应疼痛。

as a result 结果。

3．Many difficulties have ________(arise) as a result of the change over to a new type of fuel.答案：arisen句意：由于换成了一种新型燃料，许多艰巨泛起了。

arise意为“泛起，产生”，符合句意。

4．Could you tell me how to deal ________ these problems so that I will be able to adapt to the life in Guiyang?答案：with句意：你能告诉我为了适应贵阳的生活，我应该如何应对这些问题吗？deal with“处理，应对”，和how连用。

5．The mother thanked the young man again and again, without ________help her son would have been killed by the passing car.答案：whose考查定语从句关系词。

课时作业(八) 必修2 Unit 3 Computers Ⅰ.单项填空1．—Why do you always lie to our mother you love her cooking?—It’s only a white lie，so________.A．don’t bother B．my pleasureC．it’s no big deal D．don’t mention it2．She has________broad knowledge of computers，which makes________big difference to her work in the foreign company.A．a；/ B．/；/C．/；the D．a；a3．My friend Martin was very sick with a strange fever；________，he could neither eat nor sleep.A．as a result B．after allC．any way D．otherwise4．The schoo l advisers help you talk through your problems but they don’t give you any direct________.A．solution B．targetC．measure D．function5．(2013·东北三校高三第一次联合模拟)There is someone playing the guitar over there.Let’s go and listen，shall we？Free entertainment，________.A．anyway B．thoughC．therefore D．somehow6．When a person writes，he must organize his mind to express his ideas and feelings more________.A．technically B．totallyC．logically D．commonly7．(2013·贵州五校联考)Could you tell me how to________these problems so that I will be able to adapt to the life in Guiyang?A．do with B．come up withC．agree with D．deal with8．(2013·成都部分高中高三教学质量检测)So brave________that she faced the difficulty bravely she had________English.A．was she；studying B．she was；studiedC．she was；studying D．was she；studied9．Scientists say it may be two to five years________it is possible to test themedicine on human patients.A．since B．afterC．before D．when10．English is considered as a(n)________language，and it is no surprise that there are so many people in the world learning English.A．universal B．logicalC．artificial D．regular11．He proved himself a true gentleman and the beauty of his________was seen at its best when he worked with others.A．advantage B．appearanceC．qualification D．character12．The successful launch of Tiangong­1 on Sept.29th________a significant step in China’s plan to build a space station.A．signalled B．markedC．signed D．proved13．—I think the invention of the Internet has changed people’s daily life________.—I completely agree with you.A．in the way B．on the wayC．in a way D．by the way14．(2013·河南三市第二次调研)One way to stop countries fighting is to cut off their________support，for wars are very expensive.A．conditional B．chemicalC．environmental D．financial15．Don’t worry！We are well prepared to deal with all o f the problems that may________.A．rise B．ariseC．raise D．arouseⅡ.完形填空[建议用时15′](2013·安徽七校高三第二次大联考)A long time ago，my full­grown children were still “children”．I saw something that still brings a burst of__1__to my heart whenever I think about it.My youngest son who had just learnt to walk at the time was ver y__2__to his big sister.When she first started going to __3__he would stand by the window waiting every day for her bus to bring her home.One day，a particularly dirty diaper (尿布)__4__happened.His mom needed to givehim a quick bath right when the bus was__5__to arrive.When his sister and I__6__it to the door he was still in the bathtub (澡盆)．His sister went into her room to get changed.As soon as she__7__the door her brother came out from the bathroom and walked with__8__steps right to the window.It seemed that his internal (内在的)__9__knew that his sister should be home any__10__.I smiled as I watched him lo oking__11__out of the window while his sister came up from her room.Quickly she moved to him and __12__tapped him on the shoulder.The__13__on his face when he turned around was one I have__14__seen in his life.It was pure joy and pure love.His big eyes__15__with delight and his__16__arms opened up to give his sister a very big hug.I__17__a while that I had spent far too much of my own life looking out a window waiting for something or someone to bring me__18__I wanted in this life.It took me a long time to__19__feel the gentle tapping on my own shoulder.__20__I turned around，I saw love，joy and peace.,1.A.inspiration B．energyC．freshness D．joy2．A.related B．attachedC．committed D．attracted3．A.work B．collegeC．school D．town4．A.incident B．storyC．event D．affair5．A.scheduled B．arrangedC．prepared D．discovered6．A.finished B．madeC．jumped D．stepped7．A.opened B．approachedC．pulled D．shut8．A.fast B．lightC．unsteady D．proud9．A.clock B．timeC．memory D．network10．A.condition B．caseC．day D．second11．A.doubtfully B．impatientlyC．attentively D．excitedly12．A.silently B．properlyC．violently D．gently13．A.innocence B．curiosityC．surprise D．happiness14．A.possibly B．occasionallyC．rarely D．just15．A.welled B．shoneC．closed D．burned16．A.quick B．differentC．tiny D．strong17．A.realized B．concludedC．understood D．reflected18．A.where B．whatC．which D．why19．A.gradually B．finallyC．generally D．suddenly20．A.When B．BecauseC．Although D．SinceⅢ.阅读理解(2013·河北省普通高中质量检测)In an ideal world，people would not test medicines on animals.Such experiments are stressful and sometimes painful for animals，and expensive and time­consuming for people.Yet animal experimentation is still needed to help bri dge vast gaps in medical knowledge.That is why there are some 50 to 100 million animals used in research around the world each year.Europe，on the whole，has the world’s most restrictive laws on animal experiments.Even so，its scientists use some 12 million animals a year，most of them mice and rats，for medical research.Official statistics show that just 1.1 million animals are used in research in America each year.But that is misleading.The American authorities do not think mice and rats are worth counting and，as these are the most common laboratory animals，the true figure is much higher.Japan and China have even less comprehensive data than America.Now Europe is reforming the rules governing animal experiments by restricting the number of animals used in labs.Alternatives to animal testing，such as using human tissue or computer models，are now strongly recommended.In addition，sharingall research results freely should help to reduce the number of animals for scientific use.At present，scientists often share only the results of successful experiments.If their findings do not fit the hypothesis being tested，the work never sees the light of day.This practice means wasting time，money，and animals’ liv es in endlessly repeating the failed experiments.Animal experimentation has taught humanity a great deal and saved countless lives.It needs to continue，even if that means animals sometimes suffer.Europe’s new measures should eventually both reduce the number of animals used in experiments and improve the way in which scientific research is conducted.1．What is the main idea of this passage?A．The success of animal experiments should be ensured.B．A ban on the use of animals in the lab should be enforced.C．Greater efforts need to be taken to reduce the number of lab animals.D．Scientists should be required to share their research results with each other.2．Which of the following statements is true about animals used in the lab?A．America uses only about 1.1 million lab animals per year.B．Europe does not use mice and rats as lab animals at all.C．Britain does not use as many lab animals as China does.D．Japan has limited data on the number of lab animals used each year.3．Which of the following is mentionad as an alternative to replace animal experiments?A．Statistical studies.B．Computer models.C．DNA planted in animals.D．Tissue from dead animals.4．What usually happens to unsuccessful animal experiments?A．They are not revealed to the public.B．They are made into teaching materials.C．They are collected for future publication.D．They are not removed from the research topic list.Ⅳ.短文改错(2013·河北衡水中学高三上学期二调考试)I am Li Hua，a Chinese student taken summer courses in your university.I am writing to ask for help.I come here last month.I find my courses interesting，and I have some difficulty with note­taking.What’s more，I have no idea of what to usethe library.I am told the Learning Center is providing help for students and I am anxiously to get help from you.I have no class on Tuesday mornings and Friday afternoons.Please let me to know which day is OK with you.You should email or phone me.Here are my address Li Hua @ and phone numbers 12345678.I am looking forward your reply.答案：课时作业(八)Ⅰ.单项填空1．解析：考查情景交际。

Unit 3 ComputersⅠ.阅读理解AAll over the world mothers and fathers teach their children manners.Other children may have manners that are not like yours.There are all kinds of manners.Many years ago，children who had good manners were seen and not heard.They kept quite quiet if grown­ups were talking.T oday，well­mannered children have more freedom.Sometimes good manners in one place are bad manners in other places.Suppose you are a visitor in the land of Mongolia.Some friends ask you to eat with them.What kind of manners do they want you to have？They want you to give a loud “burp(打嗝)”after you finish eating.Burping would show that you like your food.In some countries，if you give a loud burp，you are told to say “Excuse me，please.”In many places people like to eat together.But in some parts of Polynesia，it is bad manners to be seen eating at all.People show good manners by turning their backs on others while they eat.What are manners like in an East African town? The people try not to see you.They are being polite.You may see a friend.He may not see you at all.If you are polite，you will sit down beside him.You will wait until he finishes what he is doing.Then he will talk to you.Suppose you visit a friend in Arabia.You should walk behind the other tents until you come to histent.If you pass in front of the other tents，you will be asked into each one.The people will ask you to eat with them.And it is bad manners if you say no.Manners are different all over the world.But it is good to know that all manners begin in the same way.People need ways to show that they want to be friends.[语篇解读] 本文主要介绍了世界上一些地方的礼仪。

课时作业(八) [必修2 Unit 3 Computers](限时：30分钟)Ⅰ.完形填空Last Friday, after doing all the family shopping in the town, I wanted to have a rest before catching the train. I __1__ a newspaper and some chocolate and __2__ into the station coffee shop. It was a cheap self­service place with long tablesto __3__ at. I put my heavy bag down on the floor, __4__ the newspaper and the chocolate on the table and then went to get a cup of coffee.When I came back with the coffee, there was someone __5__ in the next seat.__6__ was a boy, with dark glasses and old clothes, and his hair was __7__ bright red at the front. He had started to eat my chocolate!Naturally, I was rather uneasy about him, but I didn't want to have any __8__.I just read the newspaper, tasted my coffee and took a bit of chocolate. The boy looked at me in __9__.Then he took a __10__ piece of my chocolate. I could hardly believe it. Still I didn't say anything to him. When he took a third piece, I felt more angry than uneasy. I thou ght, “Well, I shall have the last piece.” And Igot it.The boy gave me a strange look, and then __11__ up. As he left, he shouted out, “There's something __12__ with that woman！” Everyone looked at me, __13__ Ididn't want to quarrel with the boy, so I kept quiet. I did not realize that I had __14__ a mistake until I finished my coffee and was ready to __15__. My faceturned red when I saw my unopened chocolate under the newspaper. The chocolatethat I had been eating was the boy's!1．A.stole B．bought C．sold D．wrote2．A.went B．sat C．seated D．looked3．A.sit B．seat C．lie D．laugh4．A.pushed B．tookC．put D．pulled5．A.jumping B．playingC．sitting D．sleeping6．A.He B．ItC．Who D．What7．A.cut B．washedC．covered D．colored8．A.coffee B．troubleC．chocolate D．matter9．A.carelessness B．angerC．surprise D．happiness10．A.first B．secondC．very D．last11．A.stood B．tookC．cried D．looked12．A.normal B．wrongC．OK D．funny13．A.and B．butC．so D．while14．A.spelt B．correctedC．made D．found15．A.finish B．leaveC．jump D．shopⅡ.阅读理解AIn today's Internet age, the demand for online games continues to grow. Online computer game centers exist in many cities and towns throughout Asia. Facing the pressures of school and life, people tend to the virtual world, expecting a diversion from these problems. Too often, however, they can lead to problems and unhealthy addictions.This is most clearly seen in the example of South Korea. The country has the world's highest percentage of high­speed Internet services. It also has a high number of online game players and related problems. It was once reported that a young man collapsed (突然晕倒) and died while playing online games. He had been playing almost nonstop for 86 hours at an Internet cafe. Another young man killed his sister after becoming confused between the online world and real life. A12­year­old boy stole $16，000 from his father and ran away from home. He did this to continue his obsession (着迷) with online games. Such problems, however, don't just happen in South Korea. They are spreading to other parts of Asia, as well.What kinds of people develop online game addiction? What does the problem look like? Dr SueHuei Chen, a clinical psychologist, researches Internet addiction. She discovered s ome signs of at­risk individuals such as lack of friendship and good social skills. Those problem individuals feel it so compulsive to play online games that they could sacrifice things such as school and family. They feel the need to spend more and more time online. And they become upset if anyone tries to limit their online game playing.How many problem game players are there? In mainland China, the potential number of problem online gamers is alarming. Just in 2004, China has had 13.8 million online game players according to China Daily. Furthermore, it stated that 80 percent of these were under 25 and had signs of addiction. Such numbers point towards a growing problem among Chinese youth.Make sure to keep control over your online game playing. If you don't control it, it can get control of you.16．The underlined word “diversion” in the first paragraph is closest in meaning to ________．A．solution B．comfortC．escape D．support17．The examples in the second paragraph tell us that ________．A．the side effects are caused by high­speed Internet servicesB．online game playing can even cause deathC．online games have caused much damage to young peopleD．the teenage boy can't resist the temptation of the online games18．According to Dr SueHuei Chen, what can we do to prevent game addiction?A．Limit the speed of the Internet services.B．Sacrifice things such as school and family.C．Spend more and more time online.D．Care much for the young and improve their ability to get along with others.19．We can conclude from the passage that ________．A．the demand for online services continues to growB．China is fighting a battle against online gamesC．the problems caused by online games don't just exist in South KoreaD．in the year 2004 there were a total of 13.8 million Chinese visiting the Internet20．What's the best title for the passage?A．Internet ProblemB．Addiction to Online GameC．Problem People in the WorldD．Online Game Can Control PeopleBSince the 1970s, scientists have been searching for ways to link the brain with computers. Brain­computer interface(BCI) technology could help people with disabilities send commands to machines.Recently, two researchers, Jose Millan and Michele Tavella from the Federal Polytechnic School in Lausanne, Switzerland, demonstrated(展示)a small robotic wheelchair directed by a person's thoughts.In the laboratory, Tavella operated the wheelchair just by thinking about moving his left or right hand. He could even talk as he watched the vehicle and guided it with his thoughts.“Our brain has billions of nerve cells. These send signals through the spinal cord (脊髓)to the muscles to give us the ability to move. But spinal cord injuries or other conditions can prevent these weak electrical signals from reaching the muscles，” Tavella says. “O ur system allows disabled people to communicate with external world and also to control devices.”The researchers designed a special cap for the user. This head cover picks up the signals from the scalp(头皮) and sends them to a computer. The computer interprets the signals and commands the motorized wheelchair. The wheelchair also has two cameras that identify objects in its path. They help the computer react to commands from the brain.Prof. Millan, the team leader, says scientists keep improving the computer software that interprets brain signals and turns them into simple commands. “The practical possibilities that BCI technology offers to disabled people can be grouped in two categories: communication, and controlling devices. One example is this wheelcha ir.”He says his team has set two goals. One is testing with real patients, so as to prove that this is a technology they can benefit from. And the other is to guarantee that they can use the technology over long periods of time.21．BCI is a technology that can ________．A．help to update computer systemsB．link the human brain with computersC．help the disabled to recoverD．control a person's thoughts22．How did Tavella operate the wheelchair in the laboratory?A．By controlling his muscles.B．By talking to the machine.C．By moving his hand.D．By using his mind.23．Which of the following shows the path of the signals described in Paragraph 5?A．scalp→computer→cap→wheelchairB．computer→cap→scalp→wheelchairC．scalp→cap→computer→wheelchairD．cap→computer→scalp→wheelchair24．The team will test with real patients to ________．A．make profits from themB．prove the technology useful to themC．make them live longerD．learn about their physical condition25．Which of the following would be the best title for the text?A．Switzerland, the BCI Research CenterB．New Findings about How the Human Brain WorksC．BCI Could Mean More Freedom for the DisabledD．Robotic Vehicles Could Help to Cure Brain Injuries课时作业(八)Ⅰ.本文是“我”外出购物时的一次尴尬的经历。

Unit 3puters课时作业Ⅰ.阅读(2020·河南省中原名校上学期第二次质量考评)It can be tough to pull kids away from their puters and mobile devices these days. While they're playing games, wouldn't it be great if they could be learning at the same time? Good educational apps offer fun challenges that teach specific grade-level skills. Here are four that bine fun and learning.Understanding Math ($3.99; iOS)Understanding Math goes beyond basic prehension to gain a deeper understanding of the whys and hows of math. The app tracks your child's progress to determine strengths and weaknesses in different skill areas, and you can customize (订制) your child's learning experience to suit the needs.Word Creativity Kit ($2.99; iOS)Word Creativity Kit aims not only to make creative writing fun but also build up grammar rules. The app presents a series of words from seven categories, such as space or fantasy. Kids add their own words to finish the plete thoughts that these words have inspired.Barefoot World Atlas ($4.99; iOS)Barefoot World Atlas helps kids learn about geography and world cultures with a touch of the screen. Each region features a set of sub-topics, from wildlife and natural features to native people, landmarks, and architecture. These facts and illustrations are delivered in photographs, sounds, and hundreds of mini videos.My Grades & Homework ($0.99; iOS)A bination of grades and homework tracker, My Grades & Homework can help your child stay organized and on top of the progress in school. A convenient calendar and course list format and offer a glance at your child's assignment schedule that he or she might not normally get from standard homework planners.篇章导读：本文是一篇应用文。

Unit 3 ComputersⅠ.阅读理解Today I want you to know Sadness can be a good friend.“All well and good，Master Yoda，” you say，“but how does that work？”First，Sadness is about losing something you care about，whether that's a loved one，a job，or a football game...So，Sadness shows you what you care about.Would you feel sad if your girlfriend / boyfriend left？The answer tells you how attached you are to this person.Along the same lines，experiencing the Sadness of loss helps us to appreciate what we still have.Funerals are painful occasions，and they are great for bringing people back together，burying old conflicts，healing wounds，but it only works if you show up and feel the Sadness and let it bring you together with the others there.One who can't bear Sadness will tend to shy away from love，commitment，and real passion，in order to avoid grief，and that's an empty life.Similarly，losing a job can help you appreciate that you still have your health.Losing your health can bring loved ones together.Losing money can help you to focus on what really matters to you，your values，your sense of mission，your spirituality.Lastly，Sadness has authenticity to it.Grieving has a way of slowing you down and bringing you back to the moment.It forces you to let go of your worries about your t o­do list and next quarter's numbers and your fast­paced life and really be with yourself，your feelings and the people around you.This is important today because we can get so lost in our smart phones and emails and lose sight of people，relationships，and dreams.So，Sadness is the kind of friend who can help you to stay grounded and real，to honor what's important and let go of what's not，and we all need that kind of friend.1．The best title for the text would be________.A．Why Sadness Is Your FriendB．How Sadness Works in Your LifeC．What Do You Think of SadnessD．Why You Feel Sad2．How many reasons why Sadness can be a friend are mentioned in the text?A．Only one. B．Two.C．Three. D．Five.3．The fourth paragraph is developed mainly by________.A．providing the examplesB．telling personal experiencesC．making comparisonsD．listing facts4．The word “It” in the last paragraph but one refers to________.A．Letting go of your worriesB．Bringing you back to the momentC．GrievingD．Fast­paced life答案：[解题导语]本文是一篇议论文。

高考英语一轮复习Unit3Computers学案新人教版必修2Unit 3 Computers电脑晨读・记忆 ComputersThe goal of early calculating machines was to simplify difficult sums. But with the help of new technology, electronic chips replaced tubes and a revolution of artificial intelligence has arisen. From then on, the appearance of computers totally changed our lives. They can not only download information from the web when connected by the network or mobile phone signals, but also solve different types of logical problems. With operators as their coaches,they can even control rockets to explore the moon and instruct androids withthe human race’s characters to mop floors and watch over your naughty niece. Anyhow, computers are so helpful that they do bring happiness.However, computers are easily attacked by viruses. This reality has become a hard-to-deal with-problem. As a result, computers are dangerous in a way. So, personally, I worry about their universal applications in some fields, such as finance.电脑早期计算机器的目的是简化比较难的计算。