高中英语人教版Unit2Cloning 课时作业

课时作业(五)Unit2CloningSectionⅠWarmingup&Reading—Pre­readingⅠ.完形填空MumdiedofcancerwhenIwasIbecameamothermyselfI__1__thedeepsadnessrememberIstayedinthedeliveryroom(产房)afterI__2__Aelaandthenursecameintofindmecryingoutofkeptsaying，“Imissmymum.”Ihavetwobrothersandthreehappysoundsoflaughter__4__thewholehomeandtherewasneveraboringIthinkaboutitnowI__5__mymumhighly，whowasafull­timewasareallycleverand__6__womanwhowasalwaystellingjokesandlovedlifedeeply.IknowIshouldbe__7__afterhavingaofcourseIwashappy，but__8__alwayscametomebecauseMumwasn’tAelawasbornIcameupwith__9__like，“WasIagoodsleeper？DidIdothatwhenIwasAela’sage？”Mummustrememberthese__10__becauseshealwayshadagoodmemory.Whenyouhavea__11__ofyourown，itbringsanew__12__toMother’s’sstillthatsadnessofMumnotbeingaround，butthedaytakesona(n)__13__year，Aela’skindergarten__14__aMother’sDaybreakfastandshekepttellingme，“Mummy，we’rehavingavery__15__dayforyou.”Aela__16__mesomuchofmymumsometimes__17__acertainexpressiononherfacelookslikeherthreeofus__18__asimilarsenseofhumoraswell.Mother’sDayiswhenI__19__onmywaytoraiseupAelaandrememberthinkthatifMumstill__20__menow，I’dbemuchhappier.语篇解读关于母亲的记忆永远是那么美好，失去母亲的关怀永远那么让人心痛。1．back B．belongedtoC．wentthrough D．escapedfrom解析：从第一段的第一句话可以知道，作者17岁的时候母亲就去世了。因为思念母亲，所以当作者成为一个母亲时，她经历了第二次悲伤。答案：C2．upto B．gavebirthtoC．wentdownto D．gotcloseto解析：根据上下文可知，事情发生在作者生孩子后。答案：B3． B．angerC．kindness D．balance解析：作者哭得无法控制自己。答案：A4． B．refreshedC．shocked D．filled解析：因为有兄妹六个，所以作者家里充满了欢笑。答案：D5． B．respectC．recognize D．expect解析：当作者现在想起来，她仍然很敬佩她的妈妈。答案：B6． B．humorousC．curious D．powerful解析：根据本段whowasalwaystellingjokes可知，妈妈是一个很幽默的人。答案：B7． B．modestC．delighted D．independent解析：根据此空后面的句子AndofcourseIwashappy可知，此处表示“我知道我有了孩子后应该很快乐”。答案：C8． B．fearC．desire D．challenge解析：根据连词but和becauseMumwasn’tthere可指，此处应该选A。答案：A9． B．adviceC．sympathy D．troubles解析：当Aela出生时，作者想问妈妈很多问题。答案：A10． B．clearlyC．proudly D．surprisingly解析：根据becauseshealwayshadagoodmemory可知，妈妈一定清楚地记得这些。答案：B11． B．childC．car D．talent解析：根据上下文可知，这里指当你有了自己的孩子。答案：B12． B．dutyC．focus D．wish解析：有了自己的孩子后，你会对母亲节有了新的关注。答案：C13． B．ridiculousC．narrow D．political解析：妈妈不在身边仍然很悲伤，但是这一天有了一个不同的意义。答案：A14． B．organizedC．urged D．donated解析：今年，Aela的幼儿园安排了一个母亲节早餐活动。答案：B15． B．professionalC．special D．smooth解析：Aela她不停地告诉我，“妈咪，我们给你准备了非常特殊的一天。”答案：C16． B．remindsC．demands D．brings解析：根据acertainexpressiononherfacelookslikehergrandma可知，Aela总是让我想起我的母亲。答案：B17． B．sinceC．but D．until解析：这里是因果关系，故选B。答案：B18． B．prepareC．share D．arrange解析：作者的母亲，作者女儿和作者本人有着相似的幽默感。答案：C19． B．carryC．insist D．reflect解析：母亲节是作者反省养育Aela的方式和思念母亲的日子。答案：D20． B．affordedC．encouraged D．educated解析：如果母亲现在依然陪伴作者左右，她会觉得更幸福。答案：AⅡ.阅读理解Withinfiveyears，awoollymammoth(猛犸象)willlikelybecloned，accordingtoscientistswhohavejustrecoveredwell­preservedbonemarrow(骨髄)inamammothbone.RussianscientistSemyonGrigorievandhiscolleaguesarenowanalyzingthemarrow，whichtheyobtainedfromthemammoth，foundinSiberianandhisteam，alongwithcolleaguesfromJapan，haveannouncedthattheywillstartajointresearchprojectaimedatrecreatingtheenormousmammal，whichwentextinctaround10,000yearsusedtobeacommonsightinNorthAmericaandofourdistantancestorsprobablyhadregularface­to­faceencounterswiththeelephant­likeThekeytocloningthewoollymammothistoreplacethenucleiofeggcellsfromanelephantwiththoseextracted(提取)fromthemammoth’sthis，accordingtotheresearchers，canresultinembryoswiththemammoth’shasactuallybeenknownforawhile.Whathavebeenmissingarethewoollymammoth’snucleiwithundamagedhavebeenonasearchforsuchnucleisincethelateitsoundslikethemissinggenesmayhavebeenfound.Inthecourse，globalwarmingmayberesponsibleforthetemperaturestiedtoglobalwarminghavemeltedgroundineasternRussiathatisalmostalwayspermanentlyaresult，researchershavefoundafairnumberofwell­preservedfrozenmammothsthere，includingtheonethatproducedthebonemarrow.Isitsuchagoodidea，however，tocloneanimalsthathavelongbeenextinct？Forawhiletherehasbeensomediscussionofareal­lifeJurassicParksetupcontainingsuchthesebeastsintoexistingecosystemscouldbelikebringinginapotentiallyinvasivespeciesthatwouldtrytofillsomespacepresentlyheldbyotheriftheclonedanimalswerecontainedinspecialparks，therecouldstillbeariskofSoifthewoollymammothissuccessfullyclonedsoonerratherthanlater，we’dprobablybeleftwithmorequestionsandargumentsthananswers，atleastintheshortterm.语篇解读猛犸象是一种早在1万年前已经绝迹了的动物，借助克隆技术，俄罗斯及日本的科学家们有望通过获取的冰冻在西伯利亚地下的猛犸象骨髓克隆出该动物。1．Whichofthefollowingwouldbethebesttitleforthepassage?A．HowtocloneawoollymammothB．Thewoollymammoth—anancientspeciesC．TheresearchmadebyRussianandJapanesescientistsD．Awoollymammothtobecloned解析：主旨大意题。第一段Withinfiveyears，awoollymammothwilllikelybecloned点明文章的主旨，并在后文具体讲解了克隆猛犸象的关键步骤及可能带来的问题。答案：D2．Whichofthefollowingcanbethekeyfactorincloningamammoth?A．TofindalivingmammothinNorthAmericaorEurasia.B．Tousenucleifromamammoth’seggcellstoreplacethenucleiinanelephant’seggcells.C．Tofindoutwhenandwherewoollymammothslivedontheearth.D．Tofindoutifancientmammothsaredistantancestorsoftoday’selephants.解析：细节理解题。根据第三段Thekeytocloningthewoollymammothistoreplacethenucleiofeggcellsfromanelephantwiththoseextractedfromthemammoth’scells.可知B项正确。答案：B3．Globalwarminghasmadetheclonepossiblebecause________.A．thewoollymammothcanonlyliveinawarmclimateB．globalwanningmakespeoplecaremoreaboutextinctanimalsC．warmertemperaturesenablescientiststofindwell­preservedfrozenmammothsD．researcherscan’tworkefficientlyiftheweatheristoocold解析：细节理解题。根据第五段可知全球变暖带来的气温升高使得俄罗斯东部常年处于冰冻状态的土地得以融化，从而研究人员在那里寻找到了保存完好的冰冻状态的猛犸象。因而C项正确。答案：C4．Whichofthefollowingbestdescribesthewriter’sattitudetowardsthefutureofcloningamammoth?A．Uncertain. B．Indifferent.C．Positive. D．Disappointed.解析：作者态度题。在最后两段中，作者提出了克隆猛犸象可能会产生的问题，对克隆猛犸象的未来抱一种不确定的态度。答案：ATheworldmarketforwindenergysawasoundrevivalinthefirsthalfof2023andre­gainedmomentum(动力)afteraweakyearinworldwidewindcapacity(风电装机容量)reached215,000MWbytheendofJune2023，outofwhichabout18,400MWwereaddedinthefirstsixmonthsofincreaserepresents15%morethaninthefirsthalfof2023.Stillthefiveleadingcountries—China，USA，Germany，SpainandIndia—togetherrepresentatotalshareof74%oftheglobalwindin2023，Chinacontinuestodominatetheworldwindmarket，adding8GWinonly6June2023，Chinahadanoverallcapacityofaround52GW.MostoftheEuropeanmarketsshowedstrongergrowthin2023thanintheprevioustopmarketsinEuropecontinuetobeGermany，Spain，Italy，France，theUnitedKingdomandFranceandDenmarkshowedadecreaseintheirnewinstalledcapacitycomparedtothefirsthalfof2023.TheUSmarketadded2,252MW，about90%morethaninthesame，butveryweakperiodof，itisquestionablewhethertheUSmarketcanregainthestrengthithadin2023whenatotalcapacityofalmost10GWwasinstalledwithinoneyear.What’smore，duringthefirsthalfof2023，threecountrieswereaddedtothelistofcountriesusingwindenergy，increasingthenumberofwindenergymarketsfrom83to86：Venezuela，Honduras，andEthiopia.Thetotalinstalledwindcapacityisprojectedtoreach240,500MWbytheendofcapacitycancoveralmost3%oftheelectricitydemandallovertheworld.语篇解读世界风电产业在经历了一年的低潮期后，在2023年上半年恢复了活力。5．Howmuchwindcapacitywasaddedinthefirsthalfof2023?A．About16,000MW. B．About18,400MW.C．About187,000MW. D．About215,000MW.解析：细节理解题。从第一段的about18,400MWwereaddedinthefirstsixmonthsofincreaserepresents15%morethaninthefirsthalfof2023可计算出答案。答案：A6．Comparedtothefirsthalfof2023，whichcountryhadlessnewinstalledwindcapacityinthefirsthalfof2023?A．China. B．TheUS.C．Germany. D．France.解析：细节理