(新教材)2019-2020学年人教版英语必修第二册培优教程练习：UNIT2

SectionIIDiscoveringUsefulStructures&ListeningandTalking基础知识预习自检I.重点词汇deern.鹿-deern.（pl.）鹿kangaroon.袋鼠，kangaroosn.（pl.）袋鼠netn.网—Internetn.互联网neighbourn.邻居—neighbourhoodn.临近的地方；街区due_to由于；因为bird_field_Ruide鸟类图鉴search_for搜索；查找paper_cut-outs剪纸教材原句Africanelephants（正在被猎杀）.答案：arebeinghuntedWhatpartofthecity（正在被攻击）now?答案：isbeingattackedLivingspacesforwildlife（正在被减少）duetothecuttingoftrees.答案：arebeingreducedFishandsnakes（正在被杀死）forfoodinrestaurants.答案：arebeingkilledThewetland（正在被污染）seriouslyeveryday.答案：isbeingpollutedI'veboughta（野夕卜指南）sothatwecanlookupthebirdswesee.答案：fieldguideIoftenseewildcats（在我们附近）.答案：inourneighbourhoodPutpapercut-outsonwindows（以便）birdsdonotcrashintoit.答案：sothatBuild（野鸟喂食器）tomakesurethatbirdshaveenoughfood.答案：birdfeedersShouldweputout（几碗食物）forthem?答案：bowlsoffood重点知识合作探究1reducevt.减少（教材P18）归纳拓展reduceto使降低到；遭受reduceby降低了reducesth.fromsth.tosth.把 从 减少到 reduceprice降价；削价；减价reducesth.tosth.将 概括成（或简化为）Costshave_been_reduced_by20%overthepastyear.过去一年，各项费用已经减少了20%。Theskirtwas_reduced_to£10inthesales.在大减价期间，这条裙子减价到10英镑。Thenumberofemployeeswasreducedfrom40_to_25.雇员人数从40人减少到了25人。Wecanreducetheproblemto_twomainissues.我们可以将这个问题概括成两个要点。口即景活用⑴单句语法填空Thetemperatureis36degrees,butitwillbereduced20degreesinthenight.Heweighed75kiloslastmonth,andnowhisweighthasbeenreduced10kilos.答案：①to②by（2）单句写作职工人数从13,000人减少到了7,500人。Theworkforcewasreduced13,0007,500.答案：from;to2dueto由于；因为（教材P18）归纳拓展表示“因为，由于”的其他短语有：（1）becauseof比其他短语更口语化；其构成的短语通常作状语，一般不作表语。⑵thanksto“幸亏，多亏”。通常用于好的方面，但有时用作反语，由其构成的短语可置于句首或句末。(3)owingto构成的介词短语可以作状语或表语，作状语时，习惯上用逗号和句子的其他部分隔开。①Eventually,hisscholarshipwasnotapprovedduetovariousreasons.由于各种原因，他的奖学金最终没有被批准。②Yourheadacheisdue_tostress.你的头痛是由压力造成的。Because_of/Owing_tothesnow,thepilothadtolandtheplaneatanotherairport.由于下雪，飞行员只得把飞机降落到另一个机场。Thanks_toyourhelp,weweresuccessful.由于你的帮助，我们得以成功。名师点津dueto，becauseof， owingto和thanksto都可以作状语；dueto，owingto可以作表语；dueto还可以作定语。口即景活用单句语法填空thebadtraffic.①Iwaslateforworkthismorningduethebadtraffic.②Thanks②Thanksdream.thefog.③Itwasverydifficulttoseeourwaybecause答案：①to②to③ofthefog.3searchfor搜索；查找(教材P19)归纳拓展searchsb.搜某人的身search...forsth.搜查（某人/某地）以寻找某物insearchof寻找；搜寻inthe/one'ssearchfor...在寻找 中①Theysearched_foraspotwheretheycouldsitonthefloor.他们在地板上寻找一处能够坐下的地方。②Firefighterssearchedthebuildingsforsurvivors.消防队员在建筑物中搜寻幸存者。③Heaskedthisquestioninthreedifferentwaysin_search_ofananswer.为了寻求答案，他以3种不同方式提出了这个问题。④Egypthassaidthereisnotimetolosein_the_search_foraMiddleEastsettlement.埃及称寻求中东和解刻不容缓。口即景活用(1)单句语法填空 thelittleboy.①Theysearchedthewoods adrink.ShewentintothekitcheninsearchAirphotosarewidelyusedinsearchforpetroleum.答案：①for②of③the(2)单句写作科学家仍在寻求治疗感冒的方法。Scientistsarestillacuretothecommoncold.答案：searchingforGrammar现在进行时的被动语态表示说话时正在进行的被动动作表示现阶段正在进行的被动动作1 有些动词不能用于进行时的被动语态表示一种经常性的被动行为 一否定式单句语法填空What现在进行时的被动语态少数动词用于进行时，其主动形式表示被动含义P语法体脸(discuss)now?答案：isbeingdiscussedItisreportedthatthesebirds答案：Grammar现在进行时的被动语态表示说话时正在进行的被动动作表示现阶段正在进行的被动动作1 有些动词不能用于进行时的被动语态表示一种经常性的被动行为 一否定式单句语法填空What现在进行时的被动语态少数动词用于进行时，其主动形式表示被动含义P语法体脸(discuss)now?答案：isbeingdiscussedItisreportedthatthesebirds答案：arebeingprotected(protect)atpresentinthearea.Theplan(notcarry)outwellatpresent.答案：isnotbeingcarriedthehouse(decorate)now?答案：Is;beingdecoratedTheriversandlakesinthisarea(pollute)bythisfactorynow.答案：arebeingpolluted(build)inthetown?Howmanybuildings答案：arebeingbuilt(build)inthetown?0语法讲座现在进行时的被动语态的构成和用法（一）构成肯定形式主语+am/is/are+being+done肯定形式否定形式主语+am/is/are+not+being+done一般疑问式Am/Is/Are+主语+being+done…？特殊疑问式特殊疑问词+am/is/are+主语+being+done…？（二）用法1．表示说话时正在进行的被动动作。句中常用now,atthemoment,atpresent等时间状语。Aninterestingexperimentis_being_carried_outnow.现在，一项有趣的实验正在进行。Someyoungpeopleare_being_interviewedinthatroomatpresent.一些年轻人现在正在那个房间里接受面试。.表示现阶段正在进行的被动动作，说话时不一定在进行。Thefilmis_being_showninthesmallvillagesthesedays.这部影片这些天正在这几个小村子里放映。（2018・天津高考）Mywashingmachineis_being_repairedthisweek,soIhavetowashmyclothesbyhand.我的洗衣机这星期正在被修理，所以我得用手洗衣服。.表示一种经常性的被动行为，常和always,constantly,frequently等表示频度的副词连用，这种用法常常带有赞扬或厌恶等感情。Heis_always_being_praisedbytheleader.他总是受到领导的表扬。Thewindowsofourclassroomare_frequently_beingbroken.我们教室的窗户经常被打破。名师点津现在进行时的被动语态的注意事项（1）在现在进行时的被动语态中，am/is/are为第一助动词，being为第二助动词，二者缺一不可，且不可互换位置。Thelawsarebeingrevisedtoprotecttherightsofwomenandchildrenbetter.法律正在被修订以便更好地保障妇女和儿童的权利。（2）takecareof， lookafter，talkabout，thinkof等动词短语用于现在进行时的被动语态时，其中的介词不可省略。Whatelseisbeingthoughtof?（你）还在考虑什么别的事情吗？（3）不及物动词（短语）、非延续性动词、表示存在意义/所属关系/静态特征的动词以及系动词不用于现在进行时的被动语态。Thebookbelongstohim.这本书是他的。(4)少数动词用于进行时，其主动形式表示被动含义，如 print, cook,build，make等。Themagazinesareprinting.这些杂志正在印刷中。Thebeefiscooking.正在煮牛肉。0趁热打铁将下列句子转换成被动句Theyaren'tdiscussingtheplanatthemeetingnow.一Theworkersarebuildingnewhousesforlocalpeople.一Thelittlegirlistakingphotosofthepanda.一TheWorldWildlifeFundisprotectingtheAfricanelephants.一Theyarelivingwiththeirparentsforthemomentbecausetheyarerebuildingtheirownhouse.一答案：①Theplanisnotbeingdiscussedatthemeetingnow.Newhousesforlocalpeoplearebeingbuiltbytheworkers.Thepandaisbeingtakenphotosofbythelittlegirl.TheAfricanelephantsarebeingprotectedbytheWorldWildlifeFund.Theyarelivingwiththeirparentsforthemomentbecausetheirownhouseisbeingrebuilt.学习效果随堂演练I.单词拼写A（袋鼠）andherbabyareeatingleavesofthetree.答案：kangarooWesearchedthesurrounding（街区）forthemissingboy.答案：neighbourhoodIwatchedthehorse-racethroughmy（双筒望远镜）.答案：binocularsIsawaspiderstrugglinginthe（网）.答案：netDoyouthinkbutterflyisatypeof（昆虫）？答案：insect.单句语法填空These（deer）arebeingprotectedwellinthisarea.答案：deerThearticle（write）.Itwillbefinishedsoon.答案：isbeingwrittenIgotupearlyinordersearchforwildbirds.答案：toYourbinoculars（repair）.Youmayusemine.答案：arebeingrepairedThearrivaltimehasbeendelayeddue badweather.答案：to.单句写作Iwasn'tbeingpunishedandIwasgettingmyveryown（鸟类图鉴）.答案：birdfieldguideHouses（在 附近）ofParisareextremelyexpensive.答案：intheneighbourhoodTherestaurant'ssuccesswas（由于）itsnewmanagertosomeextent.答案：duetoBringitnearer（以便）Imayseeitbetter.答案：sothatHowcanI（搜寻）thewebsiteaddressesontheInternet?答案：searchfor课后课时作业I阅读理解MoreandmorebirdsareflyingtosettleW1atQinghaiLake,oneofthehighestinlandlakesinChina,thankstotheprotectioneffortsoflocalgovernments.Coveringanareaofover4,000squarekilometers,QinghaiLakeisalsothecountry'sbiggestsalt-waterlake.LocatedinNorthwestChina'sQinghaiProvince,thelakeisfamousforthetwoislandsatitsnorthwestpoint—CormorantIslandandEggIsland.Thetwoislandshaveplentyoffloatinggrassandvariousschoolsoffish,offeringrichfoodsourcesforbirds.TheislandshavebecomeaparadiseW2fordifferentkindsofgroupsofbirdsandhavebeencalled“Birdlslands”.EachMarchandApril,wheniceandsnowcoveringtheQinghai-TibetPlateaustartstomelt,over20kindsofbirdsflytotheBirdIslandstolayeggs.Duringthemonths,flocksofP1birdscoverthewholeskyovertheislandsandbirdseggscanbefoundeverywhere.Visitorscanhearthesingingofbirdsfrommilesaway.Thesehavebecomeaworldfamoussymbolofthelake.Toprotectthisparadiseforbirdsandsupportcallsforecologicalprotection,ChinasetuptheQinghaiLakeNaturalProtectionZoneattheendof1997.Meanwhile,theStatehaspointedoutP2theBirdIslandsandSpringBayoftheQinghaiLakeascentralprotectionzo