欢迎来到天天文库
浏览记录
ID:50475192
大小:40.00 KB
页数:6页
时间:2020-03-06
《七选五专练(二).doc》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、七选五专练(二)根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。AAyoungladywasstandingonthecornerwithamapinherhand.Shelookedpuzzled. 1 Iwonderedwhy.Maybeitwasbecauseofthewayshewasdressed.Sheworeadirtydressandlookedpale.AsIcrossedthestreetandcameclosertoherIaskedifshewantedhelp. 2 Asitturnedouts
2、hewaslookingforthehospital.Ifeltwonderfuljustreachingout,andtakingthatextramomenttohelp.ManytimesinthesesituationsIendupwalkingapersontowhereheorsheisgoingwhengivingdirectionswouldbetoocomplicated. 3 Manyyearsago,wetravelledinJapanandneededdirections.AkindJapanesewhosawourproblemcame
3、tousandhelpedusout.Thismanjusttookmyheavybagsandguidedustowhereweneededtobe.WecouldnotspeakanyJapanesewhilethemancouldnotspeakanyEnglish. 4 SometimeswhenIdoaspecialfavorforastranger,thepersonwillsay,“IhopeIcandosomethingforyouonedaytoreturnthefavor.” 5 ButIhopethatwhentheycomeacrossa
4、situationwheresomeoneneedstheirhelp,theywillbewillingtoreachoutaswell.A.Althoughwecouldnotcommunicatethroughwords,wecommunicatedthroughtheheart.B.Theyalreadyhavedonesomethingformebygivingmetheopportunitytohelpthem.C.Ilikehelpingpeoplethiswayduetomyownexperience.D.Severalpeoplepassedby,lo
5、okedatherbutdidnotstop.E.Itisnevertoolatetodoothersafavor.F.Thesewordsmademefeelquitewarm.G.Shethankedmeandsmiledinrelief.BLivestock(牲畜)cloningisthepracticeofcloningsheep,cattleandotherlivestockspeciesasawaytoimproveefficiency.Thebasicideabehindlivestockcloningistocloneanimalsthathavecer
6、tainqualities,suchascowsthatproducemoremilkormeat. 1 However,thispracticeisverycontroversial,andlivestockfarmershavebeenhesitanttoadoptitfullybecauseofpublicoppositionandcertaininefficiencies.Intechnicalterms,livestockareclonedbytakingcellsfromoneanimalandusingthemtofertilizeeggs(使卵子受
7、精).Scientiststakethefertilizedeggsandputtheminfemaleanimals. 2 Manyanimalsarebornwithabnormalshapes.Scientistsarelookingforwaystoimprovetheprocessandmakeitlessexpensivetoadoptonawiderscale. 3 Forexample,iffarmerswereabletotakeonlytheirverybestanimalsandrecreatethemm
此文档下载收益归作者所有