【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，330.500 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,fortheirv

aluablefur．2．(教材P16)Muchis_being_done(do)toprotectwildlife,butifwereallywanttosavetheplanet,wemustchange

ourwayoflife．3．(教材P17)Theselargeanimalsare_being_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/ar

e)＋主语＋beingdone◆Wecan’ttakethisroadfortheroadisbeingrepairednow．我们不能走这条路，因为这条路正在修建。◆Itisreportedthatthewaterinth

elakeisnotbeingprotectednow．据报道，这个湖里的水现在没有得到保护。◆Arethebabiesbeingtakencareofbythisnurse?这些婴儿正由这个护士照看吗？◆Whoisbeingtrainedf

orthecomingEnglishspeechcontest?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Theyarebuildingamodernschoolinhishometown．①Amodernschoolis_being_bui

ltinhishometown．(改为被动语态)②Amodernschoolisn’t_being_builtinhishometown．(把句①改为否定句)③Is_a_modern_school_being_builtinhishometo

wn？(把句①改为一般疑问句)④Where_is_a_modern_school_being_built？(对句①就inhishometown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。◆Asfar

asIknow,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。◆Manyinterestingex

perimentsarebeingcarriedoutthesedays．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,constantly，f

requently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。TheplantoexploretheSouthPoleis_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_beatenbyhisf

atherattheverymoment．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。Aproje

ctaboutprotectingthenaturalresourcesis_being_designed．Ⅰ单句语法填空1．Now,theproblemis_being_discussed(discuss)inthemeetingroom．2．Thehigh-speedrai

lwaybetweenBeijingandZhangjiakouis_being_built(build)atpresent．3．Youngpeopleare_encouraged(encourage)tothinkcarefullyabouttheirfuturepl

ansfromtimetotimebytheirparentsandteachers．4．Thebridgeis_being_repaired(repair)atpresent,sowewillhavetochooseanotherroute．5．Accor

dingtoreports,nowadayssharksare_being_killed(kill)atasurprisingrateworldwideperyear．6．Theschoollibraryis_being_decorated(decorate)thesedays,s

oyoucan’tborrowanybooksfromit．7．Itissaidthatlawswill_be_introduced(introduce)nextyeartoprotectancientrelics．8．Mostofthewellsinthisvill

agehave_been_polluted(pollute)uptonow．9．Atthismoment,thefootballmatchis_being_played(play)betweenFranceandGerman．10．Thereissomu

chnoiseupstairs—apartyis_being_held(hold)bysomeyoungpeople．Ⅱ语法与写作1．These_animals_are_being_hunted(这些动物在被捕杀)atsuchaspeedthatt

heywilldisappearsoon．2．Mostofthebuildingsdestroyedintheearthquakeare_being_rebuilt(正在被重建)．3．Theclassroomis_being_decorat

ed(正在被装饰)withballoonsandflowersrightnowandthestudentsarepreparingfortheNewYearparty．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)atthehospitalnow,soIcannotgotothecinemaatpresent．Ⅰ单句语法填空1．(2018·天津卷)Mywashingmachineis_being_repaired(repair)t

hisweek,soIhavetowashmyclothesbyhand．2．Toourdelight,manyendangeredspeciesare_being_protected(protect)bythegovernmentnow．3．Daisyhas

foundthatalotofantelopesare_being_hunted(hunt)andkilledforthewoolbeneaththeirstomachsnow．4．Wouldyoupleas

ekeepsilent？Theweatherreportis_being_broadcasted(broadcast)andIwanttolisten．5．Bothhisparentslooksad．Maybetheyhave_know

n(know)what’shappenedtohim．6．Someonelendsyouhiscarwhileyoursis_being_repaired(repair)atthegarage．7．NewYear’sDayiscomin

gandChildren’sParkis_being_prepared(prepare)forit．8．Morethanonepatientis_being_taken(take)careofbythenurseatthemoment．9．Themeet

ingwhichis_being_held(hold)nowisofgreatimportance．10．Sheisoneofthegirlsinourclasswhoare_being_trained(train)forthecomingmatchnow．Ⅱ阅读理解Pas

sengerpigeons(旅鸽)werethemostcommonbirdsinallofNorthAmericainthe1800s．Itwascommontoseelargegroupsofpass

engerpigeons—groupsthatmadeasoundlikeastorm．Buttoday，theyareextinctbecauseofhumanbehavior．Now，somescientistswanttobringpa

ssengerpigeonsbacktolifebyusingnewtechnologyandscientificideas．Theycallthisprocessde-extinction．De-extinctionhasnothapp

enedyet．Itisstilljustanidea．Theprocessofde-extinctionisnoteasy．First，scientistsmustcollectDNAfromthebodiesofextinctanimals．T

hentheywillputitintheeggsofsimilaranimalspecies．Whentheseanimalsbecomeadults，theywillhavebabies．Andthesebabyani

malswillhavetheDNAoftheextinctanimals．Scientistsbelieveitispossibletobringbackpassengerpigeonsandmanyotheranimals．However，noteveryone

thinksthisisagoodidea．StuartPrimmistheworld’sleadingexpertonmodernanimalextinction．Hebelievesthatbringingextinctanimalsbacktolifei

sbadfortheearth．Ononehand,theseanimalsnolongerhaveasafeplacetolive．Ontheotherhand,theycouldcauseotheranimalstodie．Manyother

scientistsdonotagreewithStuartPrimm．StuartBrand，awriterandscientist，isoneofthem．Hebelievesde-extinctionisgoodformanyreaso

ns．“Thecurrentgeneration(当代)ofchildrenwillexperiencethereturnofsomeunusualanimalsintheirlifetime．Itmaybepartofwhatdefinestheirgenerationan

dtheirattitudetothenaturalworld．Theywilltaketheirparentstozoostoseethegrowingpopulationsofpassengerpigeo

ns,andmaybeevendodobirds．Thiswillprovideagooddealofmoneyforzoosbusywithextinctspeciesrestoration(恢复)．Humanskilledoffa

lotofspeciesoverthelast10，000years．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．lived

mainlyinNorthAmericaD．werethelargestinAmericanhistoryA解析：细节理解题。根据第一段中的Passengerpigeons(旅鸽)werethemostcommonbirdsinallofNorthAmericainthe1800s．

Itwascommontoseelargegroupsofpassengerpigeons—groupsthatmadeasoundlikeastorm．可知，19世纪时的旅鸽数目众多。2．Whatd

oweknowaboutde-extinction?A．ItwillchangetheDNAoftheextinctanimals．B．Itwasfirstusedinpassengerpigeons．C．Itisdifficulttocarryout．D．Itprovedtobeuseful．

C解析：细节理解题。根据第二段中的Theprocessofde-extinctionisnoteasy．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．WhyisStuartPrimmagainstbringingbackextinctanim

als?A．Theywilldieverysoon．B．Theywillcreateotherproblems．C．Theywilldogreatharmtohumans．D．Theywillreplacethesimilarspecies．B解

析：推理判断题。根据第四段中的Hebelievesthatbringingextinctanimalsbacktolifeisbadfortheearth．．．theseanimalsnolonger

haveasafeplacetolive．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．Wasteful．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Howmanytimesdoyouwi

shyouhadtimetopickupanewhobbyorskill?Often,youhopetolearnsomethingnew,butyoumaynevergetstarted．1．________Manypeoplehavesuchplans,buttheyju

stdon’tgetstarted．Thecommonreasonisthattheyfeeltheydon’thaveenoughtime．Hobbiesprovideanumberofimportantb

enefits(益处)．Theyprovideuswithabreakfromwork．2．________Manyhobbies,suchasgroupsportsandbookclubs,allowustomakenewfriends．

Becauseofsuchhobbies,wehaveasociallifeoutsideofourfamiliesandclassrooms．Sowe’vecoveredwhyhobbiesareimport

ant,buthowcanwemaketime?First,findoutwhatyoucancutbackon．Chancesarethatyoudon’twanttoskipdoingthelaundryorhelpingyourkidswithhomework．3．______

__Doyouspendyourweekendsonthecouch?Chancesarethatthere’smoretimethanyouthink．4．________Itmaynotsoundrelaxingforyourfreetimetobeonasched

ule,butyou’llbegladthatyousetasidetimeforyourhobbyonceyou’reonaregularschedule．Otherwise,it’stooeasytoputitoff．5．

________Muchofthedifficultyindoingsomethingliesingettingstarted．Evenifyoudon’tfeellikeit,oryouhaveotherthingstodo,getupandusethetimeyou

’vescheduled．Ifyourhobbyissomethingyoulove,itwon’tbelongbeforeyoufindyourselfactuallyhavingfun!A．Actually,you’renotalone．

B．Finally,getupandtrulydoit!C．Second,tryyourbestnottoputitoff．D．ButhowmuchtimedoyouspendwatchingTV?E．Next,schedul

earegulartimetospendwiththishobby．F．Whynotaskyourkidstodotheirhomeworkontheirown?G．Theyallowustouseourfreet

imetodosomethingwelove．【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Hobbiesprovideanumberofimportantbenefits(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’twanttoskipdoingthelaundryorhelpingyourkidswithhomework．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)isthelargestcatintheA

mericas．Ahundredyearsago,jaguars1．____________(find)everywherefromthesouthwesternUnitedStatestoArgentina,inSout

hAmerica．Today,jaguarsareanendangeredspeciesthroughouttheir2．____________(nature)habitatandhavebeenlostf

rom50percentoftheirterritory(领土)．Todaytheylive3．____________(most)intheAmazonrainforest．Andjaguarsaren

’ttheonlyanimalslosingtheirhomes—according4．____________theInternationalUnionforConservationofNature,habitatloss5．_____

_______(be)themainthreattoabout85percentofallendangeredplantandanimalspecies．Tropical(热带的)rainforestscoveronlyabout7percentofEarth

’sland,butthey’rehometoabouthalfofallknownplantandanimalspecies．Most6．____________(scientist)agreethatabout80，000acres(anacreisequalto4，

047squaremetres)disappeareverydaywhentreesarecutdownandlandisclearedforfarms．Treesalsoplay7．____________importantroleinclimatechange．Fewerfo

restsmeanthatmoregreenhousegasesremain8．____________(trap)intheatmosphere,themixtureofgasesthatsurroundstheEarth．Grasslands,underwaterhab

itats,andwetlandsarealsoatrisk．Forexample,theWorldWildlifeFundreportsthatabouthalfoftheworld’swetlands9．_

___________(disappear)sinceahundredyearsagoasaresultofbeingdrained(排水)foreitherfarmland10．____________otherindustries．Thatmeanslessspac

eforanimalstofeedandraisetheiryoung．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A

hundredyearsago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．mostl

y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．sc

ientists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。playanimportantrolein．．．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”，t

rap与greenhousegases之间是被动关系，故填过去分词trapped。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。either．．．or．．．意为“或者„„或者„„”。