1、课时作业(三)Unit 4Cyberspace(本栏目内容，在学生用书中以独立形式分册装订！).单句语法填空1My wallet has (disappear) from the table.答案：disappeared2It is reported that this disease (attack) the central nervous system.答案：attacks3Lack of water will limit the plants (grow)答案：growth4With the governments aid，those (affect) by the earthquake
2、 have moved to the new settlements.答案：affected5Several people were passing but nobody offered (help) him.答案：to help6Nowadays，the children get the bad habit of turning on the TV as soon as they come back from school.答案：into7The treatment they gave him did him more (harmful) than good.答案：harm8He went
3、by her (rapid) without saying hello to her.答案：rapidly.选词填空come true，focus on，as if，flood in，be optimistic about，in reality，contribute to，be likely to 1He be influenced by what others say.答案：is likely to2He looks much younger but he is over fifty.答案：in reality3He wants to visit the Great Wall but it
4、hasnt yet.答案：come true4 your study and you can do better.答案：Focus on5What was it that his success?答案：contributed to6We should our future and carry on whatever happens.答案：be optimistic about7It looks it is going to snow.答案：as if8After he became famous，letters from all over the country every day.答案：fl
5、ooded in.完成句子1Although the group were (受到攻击) for about a month，they didnt plan to give in to enemies.答案：under attack2 (很明显) the sick child needs food and sunshine.答案：Its obvious that3Nowadays，the children (养成不良习惯) turning on the TV as soon as they come back from school.答案：get into the bad habit of4.
6、 The sun rises，and the snow (不久就会消失)答案：will disappear soon5He never tidies up his desk，so it is (杂乱的一堆) books and newspapers.答案：a chaos of.课文语法填空The Future of CyberspaceIn the last thirty years，the Internet 1. (grow) rapidly，and this growth is 2. (clear) going to continue.Some experts are pessimisti
7、c about the future.One worry is crime in cyberspace.In the future，terrorists may “attack” the world s computers，cause chaos,3. make planes and trains 4. (crash)However，many people are optimistic 5. the future of the Internet.Already，users can buy books，find out about holiday offers and so on.Angela
8、Rossetto of Cyberia magazine believes 6. ，in the future，we will get entertainment from the Net and that television will probably disappear.7. mail service may also vanish (消失) with the increasing use of email.Some experts see our future in virtual realitythe use of computers with sounds and pictures
9、 8. make you feel as if 9. are in a 10. (really) situation.答案：1.has grown2.clearly3.and4.crash5.about6that7.The8.that9.you10.real.完形填空The day before Fathers Day，Mrs Berry asked her students to make a card for their fathers.She passed out paper and pieces of cloth.Elizabeth looked for a while at the
10、blue cloth and began to cut it.Then she 1 her paper in half and began writing.When Elizabeth finally looked at the message the teacher gave on the paper，she noticed something else.She felt her 2 grow hotshe hadnt heard that anyone who didnt have a father could make one for a grandfather or an uncle.
11、As her teacher walked to her，Elizabeth tried 3 her card with her arm，but Mrs Berry gently 4 it so that she could read it.Elizabeth sat 5 ，waiting for her to say something，but she saw a 6 roll down Mrs Berrys face.She had never made Mrs Berry so upset.When school was over，Elizabeth 7 until all the ot
12、her kids left so that she could 8 .“Im sorry for not listening.Ill make another card 9 you want，Ill do it 10 and bring it tomorrow.”“ 11 are you talking about？” asked Mrs Berry.“Mr Fathers Day card.I know youre upset because I didnt do it 12 ”“Elizabeth，that was the 13 card in the whole class.It was
13、 so 14 that it made me cry.”Elizabeth was so 15 that she ran out of the classroom.When her mom came home from work that night，Elizabeth 16 to give her the card early.On the front of the card was a 17 of Elizabeths mom，with a blue piece of cloth cut like her hair.Inside the card she had written：Dear
14、Mom，I know you work really hard to be both a mommy and a(n) 18 .I want to thank you and 19 you a happy Fathers Day!Love，ElizabethWhen her mom read the card she started 20 ，just like Mrs Berry did.语篇解读在父亲节来临之际，没有爸爸的伊丽莎白制作了一张特殊的贺卡，这张小小的贺卡让老师也为之动容。1A.cut BtoreCspread Dfolded解析：把制作卡片的纸折叠(folded)起来，这样与下文
15、提到的“卡片里面写有文字”的说法相符。答案：D2A.heart BfaceChands Dbody解析：从破折号后的部分和下文内容可知，伊丽莎白的卡片是送给妈妈的，而老师要求没有爸爸的同学制作卡片送给爷爷或叔叔。因此，她感到脸上(face)发烫，有些难为情。答案：B3A.covering BholdingCdoing Dmaking解析：用胳膊盖住(covering)卡片，符合“伊丽莎白不想让老师看自己制作的卡片”的语境。答案：A4A.caught BleftClifted Dplaced解析：老师应该是lifted(举起，拿起)伊丽莎白制作的卡片，目的是看到其内容。答案：C5A.alone
16、BstillCup Ddown解析：伊丽莎白“一动不动地”坐着，等着老师说些什么，反映出她此时内心很害怕。still是“静止不动”的意思。答案：B6A.tear BsmileChair Dsweat解析：从下文看，老师哭了，故此处应该是老师的眼泪(tear)从脸上滚下。答案：A7A.worked BwaitedCstood Dsat解析：放学后，伊丽莎白想等到(waited)其他同学都走了，再向老师道歉。答案：B8A.apologize BstopCunderstand Dstay解析：从下文看，伊丽莎白误认为是自己的卡片使老师生气了，故想道歉(apologize)。答案：A9A.becaus
17、e BuntilCunless Dif解析：句意为：如果(if)你想要的话，我将再制作一张卡片。答案：D10A.just here Bat onceCat home Dat school解析：从下文所说bring it tomorrow可知是回家做。答案：C11A.Who BWhoseCWhich DWhat解析：what作介词about的宾语，意为“你在谈论什么？”答案：D12A.carefully BquicklyCwrong Dright解析：由上文可知，伊丽莎白认为老师伤心是因为她没按照老师的要求做。答案：D13A.worst BbestCfavourite Dsimplest解析：这
18、是全班做得最好的贺卡。答案：B14A.wild BusefulCsweet Dhard解析：sweet意为“漂亮的，美的”。答案：C15A.happy BregretfulCbrave Drude解析：伊丽莎白太高兴了，以至于跑出了教室。答案：A16A.seemed BdecidedCrefused Dpromised解析：那天晚上母亲下班回家后，她决定把贺卡送给母亲。答案：B17A.recording BdiscoveryCdrawing Dwriting解析：她在贺卡上画了母亲的画像。答案：C18A.teacher BsisterCdaddy Daunt解析：我知道你辛勤工作，既当母亲角色
19、又当父亲角色。答案：C19A.wish BhopeCwant Dcongratulate解析：wish sb.a happy Fathers Day祝父亲节愉快。答案：A20A.laughing BjokingCworrying Dcrying解析：正如老师一样，母亲看了贺卡之后激动地流泪了。答案：D.阅读理解When choosing a laptop computer online，you should first consider what kind of laptop you need based on what youll be using it for.Frequent busin
20、ess travelIf your laptop is always brought along as you travel for work，weight and size will likely be your major concern.The size of the screen is also important.Battery life needs to be above normal as well.Finally，reliability and performance (可靠性和性能) are also important.Look for a laptop that has
21、a 13inch monitor and is around five to six pounds.Battery life should be around 3 to 4 hours.Dell and IBM are attractive sellers with strong reputations (信誉) among the business community.Home desktop replacementHome desktop replacement laptops are meant to do almost everything that a powerful deskto
22、p computer can do，which means these kinds of laptops are generally big and heavy.A large bright screen is important to watch movies，videos and pictures.Make sure there is plenty of RAM and hard drive memory.Battery life doesnt matter as much since it will usually be plugged in.Look for laptops with
23、bright 17inch monitors,3 to 4 GB RAM.HP and Gateway have excellent selections of desktop replacements.Cheap laptopIf the price is your main consideration，and you use it only for Internet browsing，email，light office applications (应用) and some light multimedia，youll find plenty of laptops from $500 to
24、 $600 that fit your needs.Where to buyDell should be your first destination.The everyday low prices have made it one of the top computer companies in the world.Other online stores frequently have great deals.Newegg，B and Amazon tend to be most wellknown.For the more adventurous ones，try eBay or eCos
25、t.Remember to check the reviews and the reputations of the sellers.语篇解读随着网络的逐渐普及，网上购物也变得越来越流行。本文告诉了读者如何在网上购买笔记本电脑，各种笔记本电脑的介绍，在购买的过程中需要注意的事项。1When you buy a laptop computer，the first thing you should think about is .ApriceBpurposeCbrand Dweight解析：细节理解题。根据第一段第一句When choosing a laptop computer online，y
26、ou should first consider what kind of laptop you need based on what youll be using it for.可知网上购买笔记本电脑时首先考虑的因素应该是笔记本电脑的用途。答案：B2Which of the following laptops are mentioned for home desktop replacement?ADell and IBM. BDell and HP.CHP and Gateway. DIBM and Gateway.解析：细节理解题。根据第五段第二句HP and Gateway have e
27、xcellent selections of desktop replacements.可知作者推荐的Home deaktop replacement两个品牌是HP and Gateway，故选C。答案：C3How many online stores are mentioned in the last paragraph?A4. B5.C6. D7.解析：推理判断题。根据最后一段内容，可知作者提到的出售笔记本电脑的网上商店有Dell，Newegg，B，Amazon，eBay和eCost共6家，故选答案C。答案：C4Which of the following can be the best title for the passage?AHow to buy a laptop onlineBWhere to buy a laptopCWhen to buy a cheap laptopDWhether to buy a laptop online解析：主旨大意题。根据整篇文章内容，可知作者主要讲述了网上购买电脑的考虑因素，以及一些著名的电脑品牌，还有一些知名的网店，所以概括文章的意思应是如何网上购买笔记本电脑，故最佳标题应选A。B，C概括的太片面，D文中没有涉及到。答案：A