【广东专用】高考英语一轮复习 课时作业(八) Unit3 Computers 新人教版必修2.doc

课时作业(八)必修2unit 3computers(限时：30分钟) .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 tables to _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 didnt 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 didnt say anything to him. when he took a third piece, i felt more angry than uneasy. i thought, “well, i shall have the last piece.” and i got it.the boy gave me a strange look, and then _11_ up. as he left, he shouted out, “theres something _12_ with that woman！” everyone looked at me, _13_ i didnt 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 face turned red when i saw my unopened chocolate under the newspaper. the chocolate that i had been eating was the boys! 1a.stole bbought csold dwrote 2a.went bsat cseated dlooked3a.sit bseat clie dlaugh4a.pushed btookcput dpulled5a.jumping bplaying csitting dsleeping6a.he bitcwho dwhat7a.cut bwashedccovered dcolored8a.coffee btroublecchocolate dmatter9a.carelessness bangercsurprise dhappiness10a.first bsecondcvery dlast11a.stood btookccried dlooked12a.normal bwrongcok dfunny13a.and bbutcso dwhile14a.spelt bcorrectedcmade dfound15a.finish bleavecjump dshop.阅读理解ain todays 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 worlds 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. a 12yearold 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, dont 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 some 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 dont control it, it can get control of you.16the underlined word “diversion” in the first paragraph is closest in meaning to _asolution bcomfortcescape dsupport17the examples in the second paragraph tell us that _athe side effects are caused by highspeed internet servicesbonline game playing can even cause deathconline games have caused much damage to young peopledthe teenage boy cant resist the temptation of the online games18according to dr suehuei chen, what can we do to prevent game addiction?alimit the speed of the internet services.bsacrifice things such as school and family.cspend more and more time online.dcare much for the young and improve their ability to get along with others.19we can conclude from the passage that _athe demand for online services continues to growbchina is fighting a battle against online gamescthe problems caused by online games dont just exist in south koreadin the year 2004 there were a total of 13.8 million chinese visiting the internet20whats the best title for the passage?ainternet problembaddiction to online gamecproblem people in the worlddonline 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 persons 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. “our 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 wheelchair.”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.21bci is a technology that can _ahelp to update computer systemsblink the human brain with computerschelp the disabled to recoverdcontrol a persons thoughts22how did tavella operate the wheelchair in the laboratory?aby controlling his muscles.bby talking to the machine.cby moving his hand.dby using his mind.23which of the following shows the path of the signals described in paragraph 5?ascalpcomputercapwheelchairbcomputercapscalpwheelchaircscalpcapcomputerwheelchairdcapcomputerscalpwheelchair24the team will test with real patients to _amake profits from thembprove the technology useful to themcmake them live longerdlearn about their physical condition25which of the following would be the best title for the text?aswitzerland, the bci research centerbnew findings about how the human brain workscbci could mean more freedom for the disableddrobotic vehicles could help to cure brain injuries课时作业(八).本文是“我”外出购物时的一次尴尬的经历。1b为了消磨时间，“我”买了报纸和巧克力，故选bought。2a由文章推断出，“我”走进了一家咖啡店，故应选went。3ato sit at作tables的后置定语，意为“可以在旁边就座的桌子”。4c按常理“我”应把报纸等放在桌子上，而不是“推到”或“拉到”桌子上，故应选 put。5c由下文可知，回来时“我”发现他开始吃“我”的东西，说明他坐在旁边的座位上，故选 sitting。6b用it指代前文中未知的人。7d头发应是被染成艳红色的，故应选colored。8b面对这样一个人，“我”不想惹麻烦，trouble合乎文意，为正确选项。9c由下文可知，“我”吃的是这个男孩正吃的巧克力，这引起了对方的某一反应。比较四个选项，再根据上下文，用名词surprise比较合乎当时的情形。10b“a 序数词名词”常用来表示“再一个，又一个”，与下文took a third piece相呼应。11a根据文意可知那个男孩起身要走，故选择stood。12b男孩生气了，必定说了发泄的话，比较四个选项，wrong为最佳选择。13b男孩骂了“我”，导致大家都朝“我”看，而“我”