【文档说明】3 UNIT 2 Section Ⅲ Discovering Useful Structures-(新教材)高中英语人教版必修2 .doc,共(7)页,186.500 KB,由小喜鸽上传
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SectionⅢDiscoveringUsefulStructures现在进行时的被动语态1.(教材P16)Theyare_being_hunted(hunt),illegally,fortheirvaluablefur.2.(教材
P16)Muchis_being_done(do)toprotectwildlife,butifwereallywanttosavetheplanet,wemustchangeourwayoflife.3.(教材P17)Theselargeanimalsare_b
eing_killed(kill)illegallyfortheirbodypartsthatareconsideredvaluable.4.(教材P20)Billionsoftreesare_being_cut(
cut)downeveryyeartomakepaperforhumans.5.(教材P20)Inthiswayalotofanimalhomesare_being_destroyed(destroy)!现在进行时的被动语态的结构肯定句be(am/is/are)+beingdone否定句be
(am/is/are)+not+beingdone一般疑问句be(am/is/are)+主语+beingdone特殊疑问句特殊疑问词+be(am/is/are)+主语+beingdone◆Wecan’ttakethisroadfortheroadisbeingrepai
rednow.我们不能走这条路,因为这条路正在修建。◆Itisreportedthatthewaterinthelakeisnotbeingprotectednow.据报道,这个湖里的水现在没有得到保护。◆Arethebabiesbeingtakencare
ofbythisnurse?这些婴儿正由这个护士照看吗?◆WhoisbeingtrainedforthecomingEnglishspeechcontest?为了即将举行的英语演讲比赛,谁正接受训练?【即时演练1】——句型转换T
heyarebuildingamodernschoolinhishometown.①Amodernschoolis_being_builtinhishometown.(改为被动语态)②Amodernschoolisn’t_being_
builtinhishometown.(把句①改为否定句)③Is_a_modern_school_being_builtinhishometown?(把句①改为一般疑问句)④Where_is_a_modern_school_being_built?(对句①就inhishom
etown进行提问)现在进行时的被动语态的用法1.表示说话时正在进行的被动动作。句中常用now,atthemoment等时间状语。◆AsfarasIknow,heisnowbeingtreatedinChina.据我所知,他现在正在中国接受治疗。2.表示现阶段正在进行的被动动
作,但该动作在说话的瞬间未必正在进行。◆Manyinterestingexperimentsarebeingcarriedoutthesedays.最近许多有趣的实验正在被进行着。(说话时,并不一定正在进行)3.表示一种经常性的被动行为,常与always,c
onstantly,frequently等副词连用,往往带有夸奖、羡慕、埋怨、讨厌等感情色彩。◆Ifeelveryamazedthattheglassesofourlivingroomarefrequentlybeingbroken.我感到非常吃惊的是我们起居室的玻璃
杯经常被打破。【即时演练2】——完成句子①那个小男孩最近进步很快,总是被他的老师表扬。Thelittleboyhasmaderapidprogressrecentlyandis_always_being_praisedbyhisteachers.②最近正在制订勘探南极的计划。Thepla
ntoexploretheSouthPoleis_being_madethesedays.③由于成绩不好,吉米此刻可能正在挨父亲打。Becauseofbadscores,Jimmymay_be_being_beatenbyhisfathera
ttheverymoment.④关于在哪儿建厂的问题现在正在被讨论。Thequestionaboutwherethefactoryisgoingtobebuiltis_being_discussednow.⑤正在设计一
个保护自然资源的项目。Aprojectaboutprotectingthenaturalresourcesis_being_designed.Ⅰ单句语法填空1.Now,theproblemis_being_discussed(discuss)inthemeetingroom.2.Thehi
gh-speedrailwaybetweenBeijingandZhangjiakouis_being_built(build)atpresent.3.Youngpeopleare_encouraged(encourage)tothinkcar
efullyabouttheirfutureplansfromtimetotimebytheirparentsandteachers.4.Thebridgeis_being_repaired(repair)a
tpresent,sowewillhavetochooseanotherroute.5.Accordingtoreports,nowadayssharksare_being_killed(kill)atasurprisingrateworldwideperyear.6.Theschooll
ibraryis_being_decorated(decorate)thesedays,soyoucan’tborrowanybooksfromit.7.Itissaidthatlawswill_be_int
roduced(introduce)nextyeartoprotectancientrelics.8.Mostofthewellsinthisvillagehave_been_polluted(pollute)uptonow.9.Atthismoment,thefoot
ballmatchis_being_played(play)betweenFranceandGerman.10.Thereissomuchnoiseupstairs—apartyis_being_held(hold)bysomeyoungpeople.Ⅱ语法与写作1.Th
ese_animals_are_being_hunted(这些动物在被捕杀)atsuchaspeedthattheywilldisappearsoon.2.Mostofthebuildingsdestroyedi
ntheearthquakeare_being_rebuilt(正在被重建).3.Theclassroomis_being_decorated(正在被装饰)withballoonsandflowersrightnowandthestu
dentsarepreparingfortheNewYearparty.4.Sinceyour_computer_is_being_repaired(你的电脑正在被修理),youcanusemine.5.Iam_being_treated(正在接受治疗)atthe
hospitalnow,soIcannotgotothecinemaatpresent.Ⅰ单句语法填空1.(2018·天津卷)Mywashingmachineis_being_repaired(repair)thisweek,soIhavetowashmyclothesbyhan
d.2.Toourdelight,manyendangeredspeciesare_being_protected(protect)bythegovernmentnow.3.Daisyhasfoundthatalotofantelopesare_being_hunted(hunt)a
ndkilledforthewoolbeneaththeirstomachsnow.4.Wouldyoupleasekeepsilent?Theweatherreportis_being_broadcasted(broadcast)andIwanttolist
en.5.Bothhisparentslooksad.Maybetheyhave_known(know)what’shappenedtohim.6.Someonelendsyouhiscarwhileyoursis_being_repaired(repair)atthegarage.7.NewY
ear’sDayiscomingandChildren’sParkis_being_prepared(prepare)forit.8.Morethanonepatientis_being_taken(take)careo
fbythenurseatthemoment.9.Themeetingwhichis_being_held(hold)nowisofgreatimportance.10.Sheisoneofthegirlsinourcl
asswhoare_being_trained(train)forthecomingmatchnow.Ⅱ阅读理解Passengerpigeons(旅鸽)werethemostcommonbirdsinallofNorthAmeric
ainthe1800s.Itwascommontoseelargegroupsofpassengerpigeons—groupsthatmadeasoundlikeastorm.Buttoday,theyareextinctbecauseofh
umanbehavior.Now,somescientistswanttobringpassengerpigeonsbacktolifebyusingnewtechnologyandscientificideas.Theycallthisprocessde-extinction.De-
extinctionhasnothappenedyet.Itisstilljustanidea.Theprocessofde-extinctionisnoteasy.First,scientistsmustcollectDNAfromt
hebodiesofextinctanimals.Thentheywillputitintheeggsofsimilaranimalspecies.Whentheseanimalsbecomeadults,theywillhavebab
ies.AndthesebabyanimalswillhavetheDNAoftheextinctanimals.Scientistsbelieveitispossibletobringbackpassengerpigeonsandmanyotheranimals.However,not
everyonethinksthisisagoodidea.StuartPrimmistheworld’sleadingexpertonmodernanimalextinction.Hebelievesthatbringingextinctanimalsbacktolifeis
badfortheearth.Ononehand,theseanimalsnolongerhaveasafeplacetolive.Ontheotherhand,theycouldcauseotheranimalstodie.Manyotherscien
tistsdonotagreewithStuartPrimm.StuartBrand,awriterandscientist,isoneofthem.Hebelievesde-extinctionisgoodformanyreasons.“Thec
urrentgeneration(当代)ofchildrenwillexperiencethereturnofsomeunusualanimalsintheirlifetime.Itmaybepartofwhatdefinestheirgenerat
ionandtheirattitudetothenaturalworld.Theywilltaketheirparentstozoostoseethegrowingpopulationsofpassengerpigeons,andmaybeevendodobirds
.Thiswillprovideagooddealofmoneyforzoosbusywithextinctspeciesrestoration(恢复).Humanskilledoffalotofspec
iesoverthelast10,000years.So,it’srighttobringsomebacktolife,”hesaid.【解题导语】本文是一篇议论文。文章主要讨论了灭绝物种复活这一新科技。1.Inthe19thcentury,
passengerpigeons________.A.werecommonsightingsB.sufferedalotfromstormsC.livedmainlyinNorthAmericaD.werethelargest
inAmericanhistoryA解析:细节理解题。根据第一段中的Passengerpigeons(旅鸽)werethemostcommonbirdsinallofNorthAmericainthe1800s.Itwascommontoseelargegroupsofpassen
gerpigeons—groupsthatmadeasoundlikeastorm.可知,19世纪时的旅鸽数目众多。2.Whatdoweknowaboutde-extinction?A.ItwillchangetheDNAo
ftheextinctanimals.B.Itwasfirstusedinpassengerpigeons.C.Itisdifficulttocarryout.D.Itprovedtobeuseful.C解析:细节理解题。根据第二段中的Theprocessofde-extinct
ionisnoteasy.以及接下来具体介绍灭绝物种复活的复杂过程可知,复活灭绝物种绝非易事。3.WhyisStuartPrimmagainstbringingbackextinctanimals?A.Theywilldieverysoon
.B.Theywillcreateotherproblems.C.Theywilldogreatharmtohumans.D.Theywillreplacethesimilarspecies.B解析:推理判断题。根据第四段中的Hebelievesthatbringingextinct
animalsbacktolifeisbadfortheearth...theseanimalsnolongerhaveasafeplacetolive.和theycouldcauseotheranimalstodie可知,StuartPrimm反对灭绝物种复活是
因为他认为这些复活的动物会造成一些其他的问题。4.HowdoesStuartBrandfeelaboutde-extinction?A.Wrong.B.Difficult.C.Important.D.Waste
ful.C解析:推理判断题。根据倒数第二段中的Hebelievesde-extinctionisgoodformanyreasons.以及StuartBrand在最后一段具体陈述灭绝物种复活的好处可知,他认为复活灭绝物种很重要。Ⅲ七选五Howmanytimesdoyouwishy
ouhadtimetopickupanewhobbyorskill?Often,youhopetolearnsomethingnew,butyoumaynevergetstarted.1._______
_Manypeoplehavesuchplans,buttheyjustdon’tgetstarted.Thecommonreasonisthattheyfeeltheydon’thaveenought
ime.Hobbiesprovideanumberofimportantbenefits(益处).Theyprovideuswithabreakfromwork.2.________Manyhobbies,suchasgroupsportsandbookclubs,allo
wustomakenewfriends.Becauseofsuchhobbies,wehaveasociallifeoutsideofourfamiliesandclassrooms.Sowe’vecoveredwhyhobbiesareimportant,buthowcanwemaketime
?First,findoutwhatyoucancutbackon.Chancesarethatyoudon’twanttoskipdoingthelaundryorhelpingyourkidswithhomework.3._______
_Doyouspendyourweekendsonthecouch?Chancesarethatthere’smoretimethanyouthink.4.________Itmaynotsoundrelaxingforyourfreet
imetobeonaschedule,butyou’llbegladthatyousetasidetimeforyourhobbyonceyou’reonaregularschedule.Otherwise,it’stooeasytoputitoff.5._______
_Muchofthedifficultyindoingsomethingliesingettingstarted.Evenifyoudon’tfeellikeit,oryouhaveotherthingstodo,getupandusethetimeyou’vesch
eduled.Ifyourhobbyissomethingyoulove,itwon’tbelongbeforeyoufindyourselfactuallyhavingfun!A.Actually,you’renotalone.B.Finally,getu
pandtrulydoit!C.Second,tryyourbestnottoputitoff.D.ButhowmuchtimedoyouspendwatchingTV?E.Next,schedulearegulartimetospendwiththish
obby.F.Whynotaskyourkidstodotheirhomeworkontheirown?G.Theyallowustouseourfreetimetodosomethingwelove.【解题导语】很多人想要培养一个新的兴趣爱好,但往往不付诸行动。1.A解析:根据下一
句Manypeoplehavesuchplans,buttheyjustdon’tgetstarted.可知,这里是指“你”不是唯一一个这样做的人。2.G解析:根据第二段中的Hobbiesprovideanumberofim
portantbenefits(益处).以及后文的信息可知,这里是在列举有兴趣爱好的好处,故选G项。3.D解析:根据上文的Chancesarethatyoudon’twanttoskipdoingthelaundryorhelpingyourkidswithhom
ework.以及后文信息可知,我们虽然无法避开洗衣服和给孩子辅导功课的时间,但我们可以抽出看电视的时间。4.E解析:根据第四段中的Itmaynotsoundrelaxing...onaschedule,butyou
’llbegladthat...onceyou’reonaregularschedule.可知,这里是建议我们给新的兴趣爱好安排出时间。5.B解析:根据下文的Muchofthedifficultyindoingsomethingliesingettingstarted.
可知,作者在本段主要鼓励我们要行动起来,故选B项。Ⅳ语法填空Thejaguar(美洲豹)isthelargestcatintheAmericas.Ahundredyearsago,jaguars1.__
__________(find)everywherefromthesouthwesternUnitedStatestoArgentina,inSouthAmerica.Today,jaguarsareanendangered
speciesthroughouttheir2.____________(nature)habitatandhavebeenlostfrom50percentoftheirterritory(领土).Todaytheylive3.____________(most)intheAmazon
rainforest.Andjaguarsaren’ttheonlyanimalslosingtheirhomes—according4.____________theInternationalUnionforConservationofNature,habitatloss5._____
_______(be)themainthreattoabout85percentofallendangeredplantandanimalspecies.Tropical(热带的)rainforestscoveronlyabout7
percentofEarth’sland,butthey’rehometoabouthalfofallknownplantandanimalspecies.Most6.____________(sci
entist)agreethatabout80,000acres(anacreisequalto4,047squaremetres)disappeareverydaywhentreesarecutdownandl
andisclearedforfarms.Treesalsoplay7.____________importantroleinclimatechange.Fewerforestsmeanthatmoregreenhousegasesremain8.___
_________(trap)intheatmosphere,themixtureofgasesthatsurroundstheEarth.Grasslands,underwaterhabitats,andwe
tlandsarealsoatrisk.Forexample,theWorldWildlifeFundreportsthatabouthalfoftheworld’swetlands9.____________
(disappear)sinceahundredyearsagoasaresultofbeingdrained(排水)foreitherfarmland10.____________otherindustries.Thatmeanslessspa
ceforanimalstofeedandraisetheiryoung.1.werefound解析:考查一般过去时的被动语态。设空处所在句意为“一百多年前,从美国的西南部到南美的阿根廷都能发现美洲豹的踪影”,故find与jaguars之间是被动关系,应用被动语态,且由Ahundredy
earsago可知,此处应用一般过去时,故填werefound。2.natural解析:考查形容词作定语的用法。设空处作定语修饰habitat,表示“自然的”,故填形容词natural。3.mostly解析:考查副词。设空处作状语修饰谓语动词live,表示“主要地
”,故填副词mostly。4.to解析:考查介词。accordingto意为“按照,根据„„所说”。5.is解析:考查主谓一致。设空处所在句描述现在的情况,应用一般现在时,因为主语是habitatloss,故填is。6.scientists解析:考查名词的数。设空处
作主语,表示“科学家”,因为scientist是可数名词,由Most及谓语动词agree可知,此处应填scientists。7.an解析:考查不定冠词。设空处所在句意为“树木在气候变化方面起着重要作用”,又因important的发音以元音音素开头,故填an。pla
yanimportantrolein...意为“在„„方面起重要作用”。8.trapped解析:考查过去分词作表语的用法。设空处所在句意为“森林面积的减少意味着越来越多的温室气体停留在大气层里”,trap与greenhousegases之间是被动关系,故填过去分词tra
pped。9.havedisappeared解析:考查现在完成时。由sinceahundredyearsago可知,此处应用现在完成时,因为主语是halfoftheworld’swetlands,故填havedisappeared。10.or解析:考查连词。ei
ther...or...意为“或者„„或者„„”。