2021届高考英语大一轮复习课时作业18Unit9Wheels含解析北师大版

课时作业18Ⅰ.完形填空LastyearIreturnedfromanoverseas(海外的)sightseeingtripandsatonthesofaathome.Ilookedaround,findingsomething__1__.Itwasliketherewasmore__2__.Whywaseverythingsuddenlybrighter?Later,Irealizedmytreeshadingmyhousewas__3__bymyneighbor,Bob.“Itsseedsweregrowingeverywherelikecancercells，”Bobhadoftensaidwith__4__.Heofferedtocutdownthistreeinmygarden.Iagreed.__5__，Ididn'tthinkhewouldactuallydoit.IwantedmygardentoregainitsbeautybecauseI__6__it.ButIknewnothingaboutgardening.Whatwaseven__7__wasthatIwastoobusytolearnit.Fortunately,mydadandmom,enthusiasticgardeners,camedownoneweekendto__8__mygarden.Bobalsoassisted.Then,IwentabroadforabusinesstripduringwhichIdidn'tneedtocareaboutgardeningsinceIcouldtotally__9__myparentsandBob.WhenI__10__，Ifoundmygardenhadbeencleared.Itwastimeto__11__it.Butwhat?Andhow?Mydadsuggestedfruittrees.Mymomhad__12__.Shesaid,“Onlyasmallgardenofmostlyrocksandcactuses(仙人掌)would__13__myskilllevel.”ThenI__14__agardendesignerandherecommendedsomeplants.Ihadlittleknowledgeofchoosingplants,watering,cutting,etc.Ijustlookedlikea__15__whenitcametogardening.Latermyfriend,Sharon__16__me.OnaSaturday,wewenttoafarmersmarketforpurchase;shetoldthefarmertoshowussome__17__plantssinceIhadlittleknowledgeofgardening.Mylittlegardenwasfinallybuiltupwithfriendsandparents'helpandIfeltquite__18__.Duringtheprocessofbuildingupmygarden,Ifoundgardeningwasinterestingandthathardworkwouldprobablybringitsownrewards.Moreover,Irealizedthe__19__offamily'sloveandfriendship—theycouldhelppeoplegothroughdifficulties.So__20__them.You'llbenefitfromit.本文是一篇夹叙夹议文。作者在家人和朋友的帮助下打理了花园。作者非常感激并从中明白了很多道理。1．A.missing B．differentC．fragrant D．useful答案：B解析：根据下文Itwasliketherewasmore...Whywaseverythingsuddenlybrighter？可知，作者回家后发现家里有点变化。2．A.light B．glassC．noise D．dust答案：A解析：根据下文Whywaseverythingsuddenlybrighter？可知，作者发现家里明亮了很多，比以往有了更多的光线。3．A.decorated B．deliveredC．removed D．burned答案：C解析：根据上文Whywaseverythingsuddenlybrighter？和下文Heofferedtocutdown...garden.以及I...actuallydoit.可知，作者家的树被邻居Bob砍掉了。4．A.embarrassment B．dissatisfactionC．confusion D．amusement答案：B解析：根据Bob所说的话“Itsseedsweregrowingeverywherelikecancercells，”可知，Bob埋怨作者家的树的种子到处生长。5．A.Instead B．ThereforeC．Besides D．However答案：D解析：根据Heofferedtocut...Iagreed.和．..Ididn'tthinkhewouldactuallydoit.可知，尽管作者同意Bob砍树，但并不认为他真的会那么做。二者之间是转折关系。6．A.rented B．leftC．liked D．ignored答案：C解析：根据上文Iwantedmygardentoregainitsbeauty可知，作者喜欢他的花园。7．A.moredangerous B．strangerC．moreimportant D．worse答案：D解析：根据上文ButIknewnothingaboutgardening.可知，此处的语境是“更糟糕的是”。8．A.handle B．enjoyC．sell D．advertise答案：A解析：根据下文Bobalsoassisted.可知，作者的父母来打理他的花园。9．A.showoff B．dependonC．dropby D．playwith答案：B解析：根据上文Ididn'tneedtocareaboutgardening可知，作者可以依靠父母和邻居Bob来打理他的花园。10．A.ran B．recoveredC．resigned D．returned答案：D解析：根据上文Then,Iwentabroadforabusinesstrip和下文Ifoundmygardenhadbeencleared可知，作者在外出差后返回家中。11．A.water B．moveC．plant D．weed答案：C解析：根据上文．..mygardenhadbeencleared.和下文Butwhat?Andhow?Mydadsuggestedfruittrees.可知，花园已经被清理，是栽种植物的时候了。12．A.compromise B．regretC．disagreement D．misunderstanding答案：C解析：根据作者母亲的话“Onlyasmallgardenofmostlyrocksandcactuseswould...myskilllevel.”可知，作者的母亲不同意种果树。13．A.improve B．requireC．challenge D．suit答案：D解析：根据下文Ihadlittleknowledgeofchoosingplants,watering,cutting,etc.可知，作者对园艺方面的知识知之甚少，其母亲认为最容易打理的花园才适合他的园艺技能。14．A.consulted B．remindedC．entertained D．interviewed答案：A解析：根据下文．..andherecommendedsomeplants...可知，作者又咨询了一位园艺规划者。15．A.scientist B．foolC．coach D．teenager答案：B解析：根据上文Ihadlittleknowledgeofchoosingplants,watering,cutting,etc.可知，作者认为在谈到园艺时自己就像个傻瓜一样。16．A.recommended B．curedC．helped D．appreciated答案：C解析：根据下文OnaSaturday,wewentto...可知，后来作者的朋友Sharon帮忙打理他的花园。17．A.tough B．cheapC．pretty D．small答案：A解析：根据下文sinceIhadlittleknowledgeof...可知，Sharon让商家提供生命力很坚韧的植物。18．A.sympathetic B．gratefulC．proud D．confident答案：B解析：根据上文Mylittlegarden...parents'help可知，作者应该感到很感激。19．A.responsibility B．lackC．contradiction D．significance答案：D解析：根据下文theycouldhelp...difficulties.可知，作者意识到家人与朋友的爱的重要性。20．A.value B．compareC．forget D．award答案：A解析：根据上文theycouldhelp...difficulties.下文You'llbenefitfromit.可知，作者勉励大家珍视家人的爱和友谊。Ⅱ.七选五Purplesweetpotatoesareatypeofpotatothathaslightpurpleskinanddeeppurpleflesh.__1__Buttheyaregenerallybelievedtohavemorepowerfulantioxidant(抗氧化剂)qualitiesthanorangesweetpotatoes.Whenmostpeoplethinkofasweetpotato,theyimagineanorangesweetpotato.Therefore,manypeoplearesurprisedwhentheyfirstseeapurpletype.Traditionally,purplesweetpotatoesareavailableprimarilyinAsianmarkets.__2__Consequently,theyaremoreavailableinAmericansupermarketsandproducestoresthantheyoncewere.__3__Theorangetypeiswell­knownforbeinghighinbetacarotene(β­胡萝卜素)whilethetypewithpurpleskinisbetter­knownfortheircancer­fightingantioxidantpotential.Thisbeneficialqualitymakesthempopularamongpeoplewhowanttokeephealthyandfightagainstcancer.Peopleoftenconfusesweetpotatoeswithyams(山药).Thesameistrueforpurplesweetpotatoesduetothefactthatthereisalsoapurplevarietyofyam.__4__Thecolorofasweetpotato'sskingenerallymatchesthecoloroftheflesh,whilethecolorofayam'sskindoesnot.Withaslightlysweettaste,peopleusepurplesweetpotatoesasatasty,healthyaccompanimenttomanymeals.Differentpeoplecookthemindifferentways.Somepeopleroastthemwithbutterandsugartostrengthentheirsweetnessorbakethem.__5__A．Theirprimarydifferenceliesintheskin.B．Purplepotatoeshaveskinsthatarelightpurpleincolor.C．Eventually,you'llfindyourownwayofcookingthem.D．Purpleandorangesweetpotatoesmainlydifferintheirnutrition.E．Theirtasteissimilartothatofthecommonorangesweetpotatoes.F．Othersprefertoboilthepotatoesandmakethemacolorfulsidedish.G．ButtheyhavebecomeanincreasinglypopularcropforfarmersintheUS.本文是一篇说明文。主要介绍了紫薯的一些特点。1．E解析：此空设于段中，与上文存在逻辑上的指代关系，该项中的Theirtaste指代上文提到的purplesweetpotatoes的味道。2．G解析：此空设于段中，与上文形成转折关系，与下文形成因果关系，说明紫薯在美国市场出现的原因。3．D解析：此空设于段首，是本段的主旨句。本段主要讲解紫薯与红薯在营养上的区别。4．A解析：此空设于段中，起承上启下的作用。上文提到人们经常把紫薯和紫山药混淆，由下文的Thecolorofasweetpotato'sskin可知，空格处主要讲两者的表皮差别。5．F解析：此空设于段尾，与上句构成并列关系，指出另一些人烹饪紫薯的方法。Ⅲ.短文改错Itisoneofmostexcitingexperiencesinmylife.MyrelationshipwiththemotorcyclesbeginwhenIwasachild.Thefeelingsaredifficultytoexplain.Thereisanimportantdifferenceamongcarsandmotorcycles.Carsforgivemistakes,butmotorcyclesdon't.Therearetwoimportantperiodinmyliferelatingtothemotorcycles:thebeginningandtoday.Myfatherboughtwealittlemotorcycle.Mysistersandbrotheralreadyknewhowtoridemotorcycles.Iwasatfiveyearsold,andIrememberperfectlythefirstdaywhichmyfathertaughtmetorideit.IwasnotafraidbutIdroveallafternoononthetenniscourt.答案Itisoneofeq\o(∧,\s\do14(the))mostexcitingexperiencesinmylife.Myrelationshipwiththemotorcycleseq\o(begin,\s\do14(began))whenIwasachild.Thefeelingsareeq\o(difficulty,\s\do14(difficult))toexplain.Thereisanimportantdifferenceeq\o(among,\s\do14(between))carsandmotorcycles.Carsforgivemistakes,butmotorcyclesdon't.Therearetwoimportanteq\o(period,\s\do14(periods))inmylifeeq\o(relating,\s\do14(related))tothemotorcycles:thebeginningandtoday.Myfatherboughteq\o(we,\s\do14(us))alittlemotorcycle.Mysistersandbrotheralreadyknewhowtoridemotorcycles.Iwaseq\o(at,＼)fiveyearsold,andIrememberperfectlythefirstdayeq\o(∧,\s\do14