人教版高中英语必修二全套随堂练课时精练Unit3UsingLanguage课时作业

课时精练：Unit3UsingLanguage课时作业Ⅰ.单词拼写1．Hegavea________(信号)tothedrivertocarryon.2．Hisfatherisabaseball________(教练)．3．Myfatherboughtan________(电子的)dictionaryforme.4．GenerosityispartoftheAmerican________(性格，特征)．5．Thisisanew________(类型)ofmachine，withlotsofmetersonit.6．Couldyouteachmehowto________(下载)musicfromtheInternet?7．Hisfirst________(出现)onstagewasattheageofthree.8．Haveyou________(拖)thefloor?9．Thelittleboywasso________(调皮的)thathisteacherdidn'tknowwhattodowithhim.10．Letmeknowifanydifficulties________(出现)．Ⅱ.阅读理解AShoppingonlineinsearchofabargain(便宜货)canoftenleaveyoufeelingdisappointedoroutofpocketratherthansatisfied.Youcanavoidthisbyfollowingoursimpleadvice：PRODUCT—Beforeyoulookforthecheapestpriceyouneedtodecidewhatproductyouactuallywant.Youcandothisbyresearchingonline，theeasiestwayistoGooglefordifferentproductssothatyoucandecideonwhatwouldbebestforyou.SEARCH&COMPARE—Youarenowreadytouseacomparisonwebsitetotryandfindoutthebestprices.Youshouldneverjustuseonecomparisonwebsite，usingtwoormorewillgiveyouabalancedviewofthemarket.Comparisonwebsitesarenecessary.Youneedtofirstcheckoutwhatkindoftechnologyasiteuses.AlthoughtheideabehindFroogle(nowcalledGoogleProducts)isattractive，thetechnologyitusesisnotasadvancedassitessuchasKelkooandPricerunner.Froogleusesaregularsearchengine.Anddon'texpectpricecomparisonsitestobeasure－firewayofgettingabargain.Thesiteswillonlyshowproductsfromcompanieswhopaythem.Thisisnotnecessarilyabadthing—suppliersvaluetheirreputation(名声)andtheirbusinessrelationships.ANDSEARCHAGAIN—Beforeyoubuyyoushouldsearchtheproductusingapricecomparisonservice，thentryagainjustusingastandardsearchengine—itmightfindtheproductwithacheaperprice.IfyouuseFirefoxtosurfthewebthenthere'sanadd－on(附加的)toolthatyoucandownloadwhichfindsthecheapestpriceforaproductforyou.ItiscalledtheInvisibleHandanditisfreetodownload.Forexample，ifyou'reshoppingonlineatAmazon，theInvisibleHandwillpopupandtellyouthatitis￡56cheaperatDixons.Thetoolwillonlyworkwhenyouarelookingatproducts，soitshouldn'tdisturbyourdaytodayinternetsurfing.Theadd－onissupportedbywell－knownbrands(品牌)suchasBT，CometandHMVbutobviouslyitwon'tsearcheverysinglesiteoutthere，soitisstillbesttouseacomparisonsiteinadditiontothetool.1．Accordingtothepassage，howtodecidewhatproducttobuy?A．Byshoppingonline.B．Bysearchingonline.C．Bylookingforthecheapestprice.D．Bydecidingwhichisbest.2．Wecanlearnfromthepassagethat______．A．wedon'tneedtousetwoormorecomparisonwebsitesB．comparisonwebsitesoftengiveuswrongviewsandchoicesC．allthesearchenginesarethesameadvancedD．differentcomparisonwebsitesusedifferenttechnologies3．Howmanytipsdoestheauthorgiveinthepassage?A．1.B．2.C．3.D．4.4．What'stheexactmeaningoftheunderlinedphrase“popup”inParagraph8？It's______．A．shoutB．appearC．disappearD．hide5．What'stheBESTtitleofthepassage?A．HowtoFindPerfectBargainsOnlineB．HowtoUseSearchEnginesC．DifferentWebsitesintheWorldD．OnlineShopping'sAdvantageBThecomputerisausefulmachine.Itisthemostimportantinventioninmanyyears.Theoldestkindofcomputeristheabacus(算盘),usedinChinacenturiesago,butthefirstlarge,moderncomputerwasbuiltin1946.Acomputerthencoulddomathsproblemsquitefast.Todaycomputersareusedinmanywaysandcandomanykindsofwork.Inafewyearsthecomputermaytouchthelifeofeveryone,evenpeopleinfarawayvillages.Inthelastfewyears,therehavebeengreatchangesincomputers.Theyaregettingsmallerandsmaller,andcomputingfasterandfaster,Manyscientistsagreethatcomputerscannowdomanythings,buttheycannotdoeverything.Whoknowswhatthecomputersoftomorrowwillbelike?Willcomputersbringgoodthingsorbadthingstopeople?Thescientistsoftodaywillhavetodecidehowtousethecomputersoftomorrow.6．Thecomputerisa________machine.A．helpfulB．strangeC．largeD．dangerous7．Thefirstlarge,moderncomputerwasbuiltabout________yearsago.A．afewB．fortyC．seventyD．eighty8．Thecomputersoftodayare________thanbefore.A．biggerB．fewerC．smallerD．taller9．Computerscando________．A．everythingB．anythingC．nothingD．lotsofthings10．Thescientistsoftoday________howtousethecomputersoftomorrow.A．maydecideB．mustdecideC．canmakeD．needn'tmakeⅢ.翻译句子1．昨晚一定下雨了，因为地是湿的。(for)_________________________________________________________________2．我看喜剧片时觉得十分轻松。(while)_________________________________________________________________3．在他的同伴的帮助下，他的事业成功了。(help)_________________________________________________________________4．警察示意车辆停下来等一等。(signal)_________________________________________________________________5．他们之间的争吵起因于他的粗鲁。(arise)_________________________________________________________________参考答案Ⅰ.1.signal2.coach3.electronic4.character5.type6.download7.appearance8.mopped9．naughty10.ariseⅡ.1.B细节理解题。由第二段可知“想要决定自己真正想买的东西最容易的方式就是通过Google等搜索引擎在线搜索不同的物品，以便作出最佳的选择”。2．D细节理解题。由第三、四段可知A项错在don'tneed；B项错在wrong；C项错在thesame；尤其是第四段通过例证说明不同的“比较网站”使用的是不同的搜索引擎技术。3．C数字计算题。由文中黑体的内容来看，作者一共提出了三大建议，分别是“PRODUCT”，“SEARCHANDCOMPARE”，以及“ANDSEARCHAGAIN”共三条。4．B词义猜测题。根据上下文语境可知，“如果你在亚马逊网购物时，theInvisibleHand就将会自动出现并告诉你这个物品在Dixons网卖得便宜56英镑”。句意决定了这个短语应该表示这个theInvisibleHand会自动出现来提示并提供帮助。5．A主旨大意题。由第一段开篇点题和综览全文内容及其结构后可知，本文主要提出了几种建议，以便让读者学会更好地在网上淘到廉价货。故A项最全面最准确。6．A细节理解题。根据据第1句话Thecompute