2024-2025學(xué)年高中英語Unit2Cloning單元加餐練習(xí)題含解析新人教版選修8

Unit2Cloning單元加餐練Ⅰ.完形填空Itwas1972,andIwasinsecondgrade.Intheclassroom,theteacher,MsBoyette,was__1__aloudtousfromIslandoftheBlueDolphins.Andwehadjustcometoapartofthebookwherethemaincharacterwastrainingawilddog.Iwaslistening,caughtupinthe__2__ofall.Notfarawayfromme,thereseatedaboywhoalwaysfrightenedor__3__others,soIwas__4__ofthisboy.WhileMsBoyettewasreading,Ilookedoverathim,forhewassomeoneIwasinthe__5__ofkeepinganeyeon.Inoticedthathewaslisteningtoo,thathewasengagedbythe__6__，andthathewasleaningforwardinhisseatandlisteningwithallhisheart.I__7__athim,open-mouthed.Iwas__8__withasuddenknowledgethatthisboywasinfactjust__9__me.Hewasakidwholikedastory.Theboymust__10__myeyesonhim,becauseheturned.Thensomething__11__happened.Hesmiledatme.__12__，Ismiledback,unafraid.Weweretwokidssmilingateachother.WhyhaveIneverforgottenthissmallmoment?WhydoIstill__13__everydetailofit?Ithinkit'sbecausethatmomentillustratessobeautifullythe__14__ofreadingoutloud.Itshowsusintoasaferoom,whereeveryoneinvolved,thereaderandthelistener,canhavethatchanceto__15__eachother.Wehumanslongnotjustforthestory,notjustfortheflowoflanguage,butfortheconnectionthatcomeswhenwordsarereadaloud.本文屬于記敘文，講解并描述了作者在一次朗讀課上與自己膽怯 的男孩的關(guān)系發(fā)生了轉(zhuǎn)變。作者把這種轉(zhuǎn)變歸功于朗讀。1．A.shouting B．singingC．talking D．reading答案：D解析：依據(jù)后文可知，本文講解并描述朗讀的影響，故選D。2．A.wonder B．silenceC．warmth D．comfort答案：A解析：依據(jù)下文可知，作者被小說的奇異情節(jié)吸引住了，故選A。3．A.greeted B．touchedC．hurt D．refused答案：C解析：依據(jù)frightened可知，該男孩常?？謬樅蛽p害他人，故選C。4．A.aware B．terrifiedC．bored D．guilty答案：B解析：依據(jù)前文的frightened可知，作者膽怯 這個(gè)男孩，故選B。5．A.habit B．formC．effort D．hope答案：A解析：依據(jù)前文可知，作者膽怯 那個(gè)男孩，習(xí)慣性地時(shí)刻提防他，故選A。inthehabitofdoingsth.養(yǎng)成做某事的習(xí)慣。6．A.speech B．storyC．journey D．diary答案：B解析：依據(jù)前文可知，老師正在給孩子們朗讀故事，故選B。7．A.pointed B．noddedC．stared D．waved答案：C解析：依據(jù)語境可知，作者始終盯著男孩，故選C。8．A.struck B．mixedC．cheated D．confused答案：A解析：依據(jù)文章可知，此處表達(dá)作者突然意識到男孩其實(shí)跟自己一樣，故選A。9．A.behind B．beyondC．a(chǎn)round D．like答案：D解析：依據(jù)文章可知，作者意識到男孩其實(shí)跟自己一樣，故選D。10．A.ignore B．feelC．meet D．observe答案：B解析：這個(gè)男孩感覺到了作者在看著他，因此轉(zhuǎn)過了頭。故選B。11．A.useful B．naturalC．serious D．a(chǎn)mazing答案：D解析：依據(jù)后文Hesmiledatme.可知，男孩朝作者微笑了。結(jié)合前文內(nèi)容可知，此處表達(dá)作者覺得很不行思議，故選D。12．A.Then B．AgainC．Instead D．Besides答案：A解析：男孩向作者微笑，作者之后也以微笑回報(bào)。故選A。13．A.seek B．organizeC．recall D．trust答案：C解析：由前一句WhyhaveIneverforgottenthissmallmoment？可知，作者還能回想起許多細(xì)微環(huán)節(jié)，故選C。14．A.power B．courageC．a(chǎn)musement D．a(chǎn)bility答案：A解析：作者認(rèn)為這是朗讀的奇妙力氣，故選A。15．A.cheer B．seeC．miss D．mention答案：B解析：依據(jù)文章可知，在聽老師朗讀時(shí)，作者看到了男孩內(nèi)心真實(shí)的樣子，故選B。Ⅱ.閱讀理解Bytheendofthecentury，ifnotsooner，theworld'soceanswillbebluerandgreenerthankstoawarmingclimate，accordingtoanewstudy.Attheheartofthephenomenonlietinymarinemicroorganisms(海洋微生物)calledphytoplankton.Becauseofthewaylightreflectsofftheorganisms，thesephytoplanktoncreatecolourfulpatternsattheoceansurface.Oceancolourvariesfromgreentoblue，dependingonthetypeandconcentrationofphytoplankton.Climatechangewillfuelthegrowthofphytoplanktoninsomeareas，whilereducingitinotherspots，leadingtochangesintheocean'sappearance.Phytoplanktonliveattheoceansurface，wheretheypullcarbondioxide(二氧化碳)intotheoceanwhilegivingoffoxygen.Whentheseorganismsdie，theyburycarboninthedeepocean，animportantprocessthathelpstoregulatetheglobalclimate.Butphytoplanktonarevulnerabletotheocean'swarmingtrend.Warmingchangeskeycharacteristicsoftheoceanandcanaffectphytoplankton'sgrowth，sincetheyneednotonlysunlightandcarbondioxidetogrow，butalsonutrients.StephanieDutkiewicz，ascientistinMIT'sCenterforGlobalChangeScience，builtaclimatemodelthatprojectschangestotheoceansthroughoutthecentury.Inaworldthatwarmsupby3℃Andwhydoesthatmatter？Phytoplanktonarethebaseofthefoodweb.Ifcertainkindsbegintodisappearfromtheocean，Dutkiewiczsaid,“itwillchangethetypeoffishthatwillbeabletosurvive.”Thosekindsofchangescouldaffectthefoodchain.Whatevercolourchangestheoceanexperiencesinthecomingdecadeswillprobablybetoogradualandunnoticeable，buttheycouldmeansignificantchanges.“It'llbeawhilebeforewecanstatisticallyshowthatthechangesarehappeningbecauseofclimatechange，”Dutkiewiczsaid，“butthechangeinthecolouroftheoceanwillbeoneoftheearlywarningsignalsthatwereallyhavechangedourplanet.”本文是一篇說明文。調(diào)查表明，由于氣候變暖，全球的海洋將會變得更藍(lán)，更綠。1.Whatarethefirsttwoparagraphsmainlyabout?A．Thevariouspatternsattheoceansurface.B．Thecauseofthechangesinoceancolour.C．Thewaylightreflectsoffmarineorganisms.D．Theeffortstofuelthegrowthofphytoplankton.答案：B解析：段落大意題。文章第一段點(diǎn)題：由于氣候變暖，全球的海洋將會變得更藍(lán)，更綠。其次段介紹由于光從生物體反射的方式，這些浮游植物在海洋表面形成了五彩繽紛的圖案，氣候變更又使得這些浮游植物在某些區(qū)域加速生長而在其他地方有所削減，導(dǎo)致海洋表面的顏色變更。由此可知前兩段講了海洋顏色變更的緣由，故B項(xiàng)正確。2.Whatdoestheunderlinedword“vulnerable”inParagraph3probablymean?A．Sensitive. B．Beneficial.C．Significant. D．Unnoticeable.答案：A解析：詞義揣測題。后一句提到，氣候變暖變更了海洋的主要特點(diǎn)并能影響浮游植物的生長，因?yàn)樗鼈円L不僅僅須要陽光和二氧化碳，也須要養(yǎng)分。由此可知，這些浮游植物對海洋變暖很敏感，故A項(xiàng)正確。3.Whatcanwelearnfromthepassage?A．Phytoplanktonplayadecliningroleinthemarineecosystem.B．Dutkiewicz'smodelaimstoprojectphytoplankton'schanges.C．Phytoplanktonhavebeenusedtocontrolglobalclimate.D．Oceanswithmorephytoplanktonmayappeargreener.答案：D解析：推理推斷題。文章倒數(shù)其次段提到這些浮游植物是海洋食物鏈的基礎(chǔ)，假如某些種類的浮游植物消逝了，會影響能存活的魚的類型，從而影響海洋食物鏈，所以A項(xiàng)“浮游植物在海洋生態(tài)中所起的作用越來越小”是不對的；Dutkiewicz的模型不是用來推斷浮游植物的變更的，而是推斷海洋的變更的，解除B項(xiàng)；浮游植物不是用來限制全球氣候的，解除C項(xiàng)。由文章第四段信息“Butinsomewaters，suchasthoseoftheArctic，awarmingwillmakeconditionsriperforphytoplankton，andtheseareaswillturngreener.”可知浮游植物多的區(qū)域海水會變得更綠，故D項(xiàng)正確。4.Whatisthemainpurposeofthepassage?A．Toassesstheconsequencesofoceancolourchanges.B．Toanalysethecompositionoftheoceanfoodchain.C．Toexplaintheeffectsofclimatechangeonoceans.D．Tointroduceanewmethodtostudyphytoplankton.答案：C解析：目的意圖題。文章主要論述了隨著氣候變暖，全球的海洋將會變得更藍(lán)，更綠，即氣候變更對海洋有影響，故C項(xiàng)正確。Ⅲ.讀后續(xù)寫Itwassomewherebetweenspringandsummer,andmymomandIweredrivingthroughthecountryside.Backthen,Iwas13yearsold,andalwaysfeltunhappywithmom.ButlittledidIknowthatthistripwasgoingtobeaspecialone.Apotofflowerssatinthebackseat,whoseheavenlyscentfilledthecar.Suddenly,inthemiddleofnowhere,mymompulledover.“Whatareyoudoing？”Icried,fearingthatthecarhadbrokendownandwe'dbestuckthere,sofarfromhome.Butthatwasn'tthecase.Mymomhoppedoutofthecar,grabbingtheflowersfromthebackseat.“It'lljustbeaminute，”shecalledbackthroughtheopenwindows.Myeyesimpatientlyskimmedtheedgeoftheroadbeforesettlingonalittlesignshowingthatitwasanursinghome.Ilookedbacktothebuilding,somewhatannoyed,asmymomreappeared,empty-handed.Beforeshestartedthecar,curiositydrovemetoask,“Doyouknowsomeonethere？”Sheshookherhead.“Thenwhatdidyoudowiththeflowers？”Shesmiledslightly,“Igavethemtothereceptionist.”“What？”Shelaughedatmyconfusion.“Itoldthereceptionisttogivetheflowerstowhoeverneededthem,especiallywhohasn'tgottenanyinawhile.”Ikeptsilentforamoment.Notlongafterwecontinuedourdriving,Ispokeagain,“Didyouleaveyourname？”Tothissheansweredinstantly，“No.Leavingflowersthereforsomeonewhowillappreciatethemmakesmefeelgood，whichisenoughofathank-youforme.”Suddenly,stillthinkingaboutMom'sdeeds,Iheardsomethingburstloudly.Itwasourcarthatbrokedown!Nothingcouldbeworse,becauseneithermymomnorIunderstoodhowtorepairit,andwedidn'tknowwherethegaragewas.Italsoseemedimpossibletowaitforanypasser-by,sincewehadseensofewalongtheway.留意：1．所續(xù)寫短文的詞數(shù)應(yīng)為150左右；2．續(xù)寫部分分為兩段，每段的開頭語已為你寫好。答案Paragraph1：Wewereworryingaboutwhatcouldbedone.Butafterwaitinginvainforaconsiderabletime,momandIdecidedtowalkbacktheroadtothenursinghomeandseekhelp.God