課時練習Unit6Whenwasitinvented?SectionB(2a～2e)一、根據句意及漢字提示完成單詞。1．The(普及)ofthecomputerisrising.2．The32ndwon'tbe(奧林匹克運動會)heldinTokyoinJuly,2021.3．Dr.Bethunewasa(加拿大人)．HemadeagreatcontributiontothemedicaltreatmentinChina.4．Ourteacheradvisedmeto(劃分)ourclassintothreegroups.5．JeremyLinisa(專業的)basketballplayer.二、單項選擇。6.Dad，whymustIstopcomputergames?A．playB．toplayC．toplayingD．playing7.JaneMariaspeaksgoodChineseafterthreeyears'study，sotheycancommunicatewithusverywell.A．Neither；norB．Both；andC．Notonly；butalsoD．Either；or8.—Howmanyteachersarethereinyourschool?—themoveronehundred.A．Thenumberof；isB．Thenumberof；areC．Anumberof；areD．Anumberof；is9.—What'syourofjoiningGoodFriendClub?—Iwanttomakemorefriends.A．ideaB．purposeC．opinionD．difficulty10.Workingpeoplethehistory.A．madeB．createdC．wereinventedD．werefound三、按要求完成下列各題11.ThebookswerewrittenbyMr.Limanyyearsago.(改為否定句)ThebooksbyMr.Limanyyearsago.

12.Atthattime,thebossmadetheworkerswork12hourseveryday.(改為被動語態)Atthattime,theworkerswerework12hourseveryday.

13.HealwaysspendsoverthreehourswatchingTVonweekends.(改為同義句)HealwaysspendsthreehourswatchingTVonweekends.

14.Didtheybuildabridgehereayearago?(改為被動語態)abridgeherebythemayearago?

15.Therearetwohundredcomputersinourcomputerroom.(改為同義句)computersinourcomputerroomistwohundred.

四、任務型閱讀。Doyouknow“Moserlamp(燈)”？Doyoubelievethatplasticbottlesandwatercanbeusedaslamps?Thebrazilianscientist,AlfredoMoser,hasinventedawaytolightahousewithoutelectricity.Plasticbottlesandsomewaterarethematerialsthata“Moserlamp”needs.Firstaholemustbemadeintheroof(屋頂)andthenthewater-filledbottleispushedintothehole.Inthisway,thesunlightcanbereflected(反射)intotheroomthroughthewater-filledplasticbottle.In2002,thecountry'selectricityblackouts(斷電)happenedalotinBrazil.Inordertolighthisroomwithoutelectricity,Mr.Moserstarteddoingexperiment.Once,hisbosssuggestedthatheshouldtrythewaythataplasticbottlefilledwithwatercanlightthedrygrassinthesun.ThishelpedMoserandsoonheworkedoutthelamp.Thisinventionhasbeenwidelyusedallovertheworld.Itislightinguptheworldnow.Moser'slampshavebeenusedinover140,000housesinthePhilippines,aswellasin15othercountries.Thisinventionhadbeenusedinoveramillionhousesbytheendof2015.Hesaysthathehasneverthoughthisinventioncouldbesopopular.Butitgiveshimsomuchpleasurewhenthinkingofpeopleusingit.ItistruethatAlfredoMoserhaschangedthelivesofalargenumberofpeople.任務一：完成句子。16．Thesunlightcanbereflectedintotheroomthroughthe任務二：回答問題。17．Whatareneededtomakea“Moserlamp”？18．WhogaveMr.Mosersuggestionswhilehewasdoingexperiments?任務三：找出并寫下全文的主題句。19．.任務四：將文中畫線部分譯成漢語。20．答案;一、1.popularity2.Olympics3.Canadian4.divide5.professional二、6-10DCABB三、11.Weren’twritten12.madeto13.morethan14.Was;built15.Thenumberof四、16.w