2026秋外研版七上英语单元检测卷Unit 5 The power of plants

Unit5Thepowerofplants（单元检测）2026-2027学年外研版七年级英语上册（考试时间：70分钟试卷满分：90分）注意事项：1．本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。2．回答第Ⅰ卷时，选出每小题答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。写在本试卷上无效。3．回答第Ⅱ卷时，将答案写在答题卡上。写在本试卷上无效。4．考试结束后，将本试卷和答题卡一并交回。第Ⅰ卷选择题（满分55分）一、单项选择（本题有15小题，每小题1分，共15分）从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。1．Whichofthe“i”hasthedifferentpronunciation（发音）fromtheotherthree?A．bike B．big C．kite D．time2．NotonlymyfriendsbutalsoI________interestedinfootball.A．am B．be C．is D．are3．Thelibraryis________tallestbuildinginourschool.A．a B．an C．the D．/4．Wehavetotakeactionimmediatelytopreventthesituation________gettingworse.A．with B．from C．for D．to5．—________doyougotoplaybasketball,Cindy?—Everyweek.A．Howlong B．When C．Howoften D．Howmanytimes6．—Tony,haveyougotanideaforthisweekend?—No.________I’llgotomyhometownwithmyfamily.A．Maybe B．Actually C．Usually D．Never7．Tomakeourenvironmentmorebeautiful,weshouldnot________trees.A．writedown B．cutdown C．sitdown D．falldown8．It’s________toseealargesportsfield.Allthestudentsare________atit.A．amazing;amazing B．amazing;amazed C．amazed;amazing D．amazed;amazed9．—________you________freetomorrow?—No.I________freethedayaftertomorrow.A．Are;goingtobe;will B．Are;goingto;willC．Are;goingto;willbe D．Are;goingtobe;willbe10．Thereare________studentsinourschool.A．hundredsof B．hundredof C．threehundreds D．threehundredsof11．Itwasreportedthatvisitorswere________onMayDaythisyear.A．everywhere B．anywhere C．somewhere D．nowhere12．________myfather________mymotherwantstogototheconcertwithme,soIamgoingtobuythreetickets.A．Neither;nor B．Both;and C．Notonly;butalso D．Either;or13．—MrSmith,couldyoupleasegivemeafewminutesforsomequestions?—_________.A．Notmuch B．Sure.Goahead C．Helpyourself D．Soundsgreat14．Themathproblemwasreally________.Iworkeditoutonlyinfiveminutes.A．impossible B．simpleC．useful D．difficult15．Westudentsdon’tgotoschool________.Ourparentscantakeusoutsidetoenjoynature.A．onMonday B．onFridayC．onTuesday D．ontheweekend二、完形填空（本大题有10小题，每小题1分，共10分）I’maplantscientist.WhenItellpeopleaboutmyjob,theyaskme,“whydon’tyouworkhardonmore‘useful’16⁠likephysics?”Myanswertotheirquestionsiseasy:plantsciencecanhelp17⁠theworld.Millionsofpeopleintheworlddon’thave18⁠foodtoeateveryyear.It’snotbecausewecan’tproduceenoughfood,butbecausewe19⁠lotsofit.Theresearchonplantscanhelpmakethiswasteless.One20⁠isthatplantscientistscanslowdowntherotting(腐烂)ofapples.Sowecanstore(储存)theapples21⁠.Plantscienceisalsogoodfortheearth.Overall,plantscienceis22⁠useful.However,duringavisittoa23⁠,Iwassurprisedtofindthatfewofthestudentscouldrecognisethericeplantinascienceclass.Withoutinterestinplants,theywon’t24⁠theplantstudyinthefuture.Andtheywillneverknowabouttheimportanceofplantscience.Ithinkschoolscouldandshouldtryto25⁠thissituation.Plantscienceismuchmoreusefulthanmostpeoplethink.Ihopemorepeoplewillstudyit.16．A．chances B．plans C．exercises D．subjects17．A．feed B．treat C．connect D．shake18．A．bad B．popular C．enough D．different19．A．remember B．waste C．influence D．refuse20．A．example B．decision C．game D．pollution21．A．shorter B．earlier C．higher D．longer22．A．seldom B．really C．finally D．suddenly23．A．farm B．hospital C．cinema D．school24．A．joinin B．lookat C．writedown D．dieout25．A．share B．follow C．change D．connect三、阅读理解（本大题有15小题，每小题2分，共30分）ATherearemorethan400,000kindsofplantsonEarth.Someplantsareasbigastallbuildings;othersareassmallasrice.Plantsplayanimportantpartinnaturebecausetheygiveoutoxygen—thegasthatallanimalsneedforbreathing.Whatisaplant?Mostpeoplehavenodifficultyfindingthedifferencesbetweenananimalandaplant.Thatisbecauseanimalscanmovearound,butplantscan’t.Whatmakesaplantaplant?Likeanimals,plantsarelivingthingsthataremadeupoflotsofcells(细胞).Unlikeanimals,plantsmaketheirownfoodbyphotosynthesis(光合作用).Mostplantshaveroots,stems,andleaves,andmostplantsreproducebygrowingflowersandmakingseeds.Allplantsneedenergytostayaliveandgrow,andtheygetitfromsunlightinsteadoffood.Howdoesaplantgrow?Mostanimalsgrowinacertainway,andgenes(基因)controltheirgrowth.Thatistosayevenwhentheyaresmall,it’seasytoknowwhattheywilllooklikeaftertheygrowup.Plantsaredifferent.Theirgrowthiscontrolledbygenestoo,buttheirfinalshapesalsodependonwheretheylive.Forexample,atreecanbebigandroundifitgrowsupinanopenspace,butmuchtallerandthinnerifitgrowsinthewoodswithothertreesallaround.Plantsareunabletomovefromoneenvironmenttoanother,soitisimportantthattheyareabletogetusedtotheenvironment.26．Wherecanwemostprobablyreadthepassage?A．Inanadvertisement. B．Inastorybook C．Inasciencemagazine. D．Inaposter.27．WhichofthefollowingisNOTmentionedinParagraph1?A．Numberofplants. B．Differentsizesofplants.C．Importanceofplants. D．Partsofplants.28．HowdoestheauthordescribetheplantsinParagraph2?A．Bycomparing. B．Bygivingexamples.C．Bygivingnumbers. D．Bytellingstories.29．Whatcanweknowaboutplantsfromthepassage?A．Flowersandseedsarethemostimportantpartsofaplant.B．Plantsandanimalsgrowinthesameway.C．Onlyenvironmentcontrolstheplants’growth.D．It’simportantfortheplantstogetusedtotheenvironment.30．Whichcanbethebesttitleforthepassage?A．ThePlantWorld B．PartsofaPlantC．PlantsandAnimals D．PlantsandEnvironmentBDoyouknowsunflowers?Todaywewillteachyouhowtoplantsunflowersandcareforthem.Part1Germinating(使发芽)sunflowerseeds●Chooseonekindofsunfloweryoulike.Startthefollowingstepswiththebesttemperature:18℃～33℃.

●Puttheseedsinaplasticbag.Putpapernapkins(纸巾)ontheseeds.Thenputtheminplasticbags.Whentheseedsgerminate,plantthem.Part2▲●Chooseasunnyplace.Sunflowersgrowbestwithsixtoeighthoursofsunlightaday.●Planttheseedsinholes.Planttheseeds2.5cmdeep.Thencovertheseedswithsoil.Part3Caringforsunflowerplants●Waterplantsonceaweek.●Fertilizealittleornotatall.●Harvesttheseeds.Sunflowersusuallytake80to120daystogrowupandproducenewseeds.Tips:Supportplantsover90cmwithsticks.31．Whichtemperatureisthemostsuitable(合适的)toplantsunflowers?A． B． C． D．32．Whichofthefollowingcanbeputin▲?A．PlantingsunflowerseedsB．ThinkingabouttheplaceofplantingC．WateringsunflowerplantsD．Checkingthetemperature33．IfyouplantyourseedsinApril,whenmayyouharvest?A．InJanuary. B．InMay. C．InJuly. D．InNovember.34．Howtallshouldplantsgrowbeforeyousupportthemwithsticks?A．Lessthan18cm.B．Lessthan33cm. C．Morethan90cm. D．Morethan120cm.35．Wherecanpeoplereadthepassage?A．Inasciencetextbook. B．Inagardeningmagazine.C．Inananimalnewspaper. D．Inachildren’sstorybook.CDoyouknowtreerings(年轮)cantellussomething:whattheweatherwaslikeevenhundredsofyearsago?Atreewillgrowwellinaclimatewithlotsofsunlightandrainfall.Inotherwords,littlesunlightorrainfallwilllimitthegrowthofatree.Wecanstudythetreeringstoknowthechangesofclimate.Forexample,ifwewanttoknowtheweatheroftenyearsago,counttheringsofatreefromtheoutside(外面)totheinside.Ifthetenthringisfarfromtheeleventhring,we’resurethatitwassunnyandrainymostofthatyear.However,ifthetenthringisneartheeleventhring,thentheclimateofthatyearwasbad.Treeringsareimportant,notonlyforstudyingthehistoryofweather,butalsoforstudyingthehistoryofpeople.Manycenturies(世纪)agotherelivedalotofpeopleinaplaceinNewMexico.Butnowtherearenotrees,nopeople.Whathappenedtothatplace?Ascientiststudiedtheringsofthedeadtreesthere.Hefoundthatthepeoplehadtoleavetherebecausetheycutdownallthetreestomakefiresandbuildings.Becausetherewasnotatreeleft,peoplehadtomove.36．Accordingtothepassage,howcanpeoplefindoutthechangesofclimate?A．Bystudyingsunlight. B．Bystudyingrainfall.C．Bystudyingtreerings. D．Bystudyingtheleavesoftrees.37．Whatdoestheunderlinedword“limit”inParagraph1mean?A．Help. B．Stop. C．Protect. D．Miss.38．WhichofthefollowingisTRUE?A．Snowandwindwillhelpthetreegrow.B．Wecanonlycounttreeringsfromtheinsidetotheoutside.C．Treeringscanhelpuslearnaboutthehistoryofpeople.D．Treeringsareimportantforstudyingthehistoryoffood.39．Accordingtothepassage,whydidpeopleintheplaceinNewMexicoleave?A．Becausetheyhadnoplacetolive. B．Becausetherewastoomuchpollution.C．Becausetheyhadnofoodtoeat. D．Becausetherewerenomoretreesforthem.40．Whatisthispassagemainlytalkingabout?A．Waystostudytreerings. B．Theimportanceoftreerings.C．Theclimateandtreerings. D．Manandtreerings.第Ⅱ卷非选择题（满分45分）四、单词拼写（共10小题，每小题1分，满分10分）41．John’ssisterisafraidofdogs.Shethinkstheyare________(可怕的).42．TheInternetishelpfulandwecangetmuchuseful________(信息)fromit.43．Wherearemy________(钥匙)?Ican’tfindthem.44．ButIneverputtoomuch________(糖)inmymilkbecauseit’sbadformybody.45．Thiskindofsportsshoesisvery________(受欢迎的)withstudentsbecausethey’recomfortable.46．Today,wearetalkingabout________(健康).47．I’minterestedin__________(收集)plants.48．Excuseme,canItryonthispairofwhite________(靴子)?49．Therearesomany________（时尚）showsonTV.50．HebeiBangziisakindof________(传统的)Chineseopera.五、完成句子（共5小题，每小题2分，满分10分）51．当冬天来临时，天黑得越来越早。It__________________earlierandearlierwhenwintercomes.52．Jane不仅聪明，学习还很努力。Janeis________clever,________studieshard.53．晚上，我们可以看到天空中有数百万颗星星。Atnight,wecansee________________starsinthesky.54．黄山和九华山为许多人所熟知。MountHuangshanandMountJiuhuaarewell-knownto__________________people.55．我认为动物更喜欢生活在自然界中。Ithinkanimalsprefertoliveinthe________________.六、短文填空（共10小题，每小题1分，满分10分）阅读下面短文，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案写在答题卡规定的位置上。Howmuchdoyouknowaboutthe24solarterms(节气)?As56importantpartofChineseculture,the24solartermsguidepeople’sfarmingand57(day)life.Eachsolartermlastsabout15days,andgivesinformationaboutthetimeofyear.About2,000yearsago,Chinesepeoplestudied58(nature)changessuchastemperature,waterandplantgrowth.Theythen59(make)24solartermstoshowthechangesinseasonandweather.60example,theynamedthedayinayearwiththelongestdaytimeasXiazhi.The61(short)onewascalledDongzhi.Peopleinthenorth62ChinausuallyeatdumplingswhenLidongarrives.InmanypartsofChina,it’susually63(snow)aroundXiaoxueeveryyear.Thesolartermsalsohelpfarmersmake64(they)plans.WhenLichuncomes,it’sgettingwarm.Farmersaregoing65(plant)crops(庄稼).WhenMangzhongcomes,theharvesttimeiscoming.七、书面表达（本题15分）66．Overmywindowtheivyclimbs;Itsrootsareinhomelyjars,Butalldaylongitlooksatthesun,Andatnightlooksoutatthestars.—MyWindowIvy(byMaryMapesDodge)植物世界千姿百态，从路旁的小草到苍劲挺拔的参天大树，将地球装扮得五彩缤纷。在这个妙趣横生的植物世界里，有的身材高大，根深叶茂；有的身体微小，游离不定；有的外表迷人却富含毒素；有的貌似迥异却互利共生……某英文网站正在开展以“神奇的植物”为主题的征文活动，假如你是李华，请用英文写一篇短文投稿，推荐一种你认为神奇的植物，对其做简要介绍，并说明推荐理由。提示词语：feedon,catch,beautiful,useful,important提示问题：1.Whatistheamazingplant?Describeit.2.Whydoyouthinkitisamazing?_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Unit5Thepowerofplants（单元检测）2026-2027学年外研版七年级英语上册解析卷（考试时间：70分钟试卷满分：90分）注意事项：1．本试卷分第Ⅰ卷（选择题）和第Ⅱ卷（非选择题）两部分。答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。2．回答第Ⅰ卷时，选出每小题答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。写在本试卷上无效。3．回答第Ⅱ卷时，将答案写在答题卡上。写在本试卷上无效。4．考试结束后，将本试卷和答题卡一并交回。第Ⅰ卷选择题（满分55分）一、单项选择（本题有15小题，每小题1分，共15分）从每小题所给的A、B、C、D四个选项中选出一个可以填入空白处的最佳选项。1．Whichofthe“i”hasthedifferentpronunciation（发音）fromtheotherthree?A．bike B．big C．kite D．time【答案】B【详解】句意：以下哪一个“i”的发音与其他三个不同？考查语音识别。bike[baɪk];big[bɪɡ];kite[kaɪt];time[taɪm]。big里的i与其它三个发音不同。故选B。2．NotonlymyfriendsbutalsoI________interestedinfootball.A．am B．be C．is D．are【答案】A【详解】句意：不仅我的朋友，而且我也对足球感兴趣。考查be动词。am是，主语是第一人称单数；be动词原形；is是，主语是第三人称单数形式；are是，主语是第二人称和第一三人称单数复数形式。notonly…butalso…连接两个成分作主语时，遵循就近原则，空前主语为I，be动词用am。故选A。3．Thelibraryis________tallestbuildinginourschool.A．a B．an C．the D．/【答案】C【详解】句意：图书馆是我们学校最高的建筑。考查冠词的用法。此处用在最高级“tallest”前，用定冠词the，故选C。4．Wehavetotakeactionimmediatelytopreventthesituation________gettingworse.A．with B．from C．for D．to【答案】B【详解】句意：我们必须立即采取行动，防止事态进一步恶化。考查介词词义辨析。with和；from来自；for为了；to到。此处是固定词组，prevent...from...“防止……做”，因此这里是from。故选B。5．—________doyougotoplaybasketball,Cindy?—Everyweek.A．Howlong B．When C．Howoften D．Howmanytimes【答案】C【详解】句意：——辛迪，你多久去打一次篮球？——每周。考查特殊疑问句。Howlong多长时间；When什么时候；Howoften多久一次；Howmanytimes多少次数。根据“Everyweek.”可知应询问多久去打一次篮球，故选C。6．—Tony,haveyougotanideaforthisweekend?—No.________I’llgotomyhometownwithmyfamily.A．Maybe B．Actually C．Usually D．Never【答案】A【详解】句意：——Tony，这周末你有什么主意吗？——没有。我也许要和家人去我的家乡。考查副词辨析。Maybe大概，也许；Actually事实上；Usually通常；Never从不。根据“haveyougotanideaforthisweekend”和“No.”可知，对于周末后者还没有计划，或许会回家乡。故选A。7．Tomakeourenvironmentmorebeautiful,weshouldnot________trees.A．writedown B．cutdown C．sitdown D．falldown【答案】B【详解】句意：为了使我们的环境更美丽，我们不应该砍伐树木。考查动词短语。writedown写下；cutdown砍倒；sitdown坐下；falldown摔倒。根据“Tomakeourenvironmentmorebeautiful”可知，这里谈论的是砍树和环保问题，应用cutdown。故选B。8．It’s________toseealargesportsfield.Allthestudentsare________atit.A．amazing;amazing B．amazing;amazed C．amazed;amazing D．amazed;amazed【答案】B【详解】句意：看到这么大的运动场真令人惊讶。所有的学生对此都感到惊讶。考查形容词辨析。amazing“令人惊讶的”，一般修饰事物；amazed“感到惊讶的”，主语一般是人，常构成短语beamazedat“对……感到惊讶”。第一空修饰“看到这么大的运动场”这件事，应是amazing；第二空修饰人，应是amazed。故选B。9．—________you________freetomorrow?—No.I________freethedayaftertomorrow.A．Are;goingtobe;will B．Are;goingto;willC．Are;goingto;willbe D．Are;goingtobe;willbe【答案】D【详解】句意：——你明天有空吗？——不。我后天有空。Are；goingto和will都表示将要，“free”是形容词，意为“空闲的”，前面应该有be动词，在aregoingto和will后be动词用原形，应填“Are;goingtobe;willbe”。10．Thereare________studentsinourschool.A．hundredsof B．hundredof C．threehundreds D．threehundredsof【答案】A【详解】句意：我们学校有数百名学生。考查大数的表达。当hundred与数词连用时，表示一个具体的数字，后面不加s；当hundred与of+复数名词连用时，表示一个多而不具体的数字，后面加s。根据“students”可知，设空处前没有数字，此处表示不确定数量的大概数目，hundredsof“数百”符合题意。故选A。11．Itwasreportedthatvisitorswere________onMayDaythisyear.A．everywhere B．anywhere C．somewhere D．nowhere【答案】A【详解】句意：据报道，今年五一那天到处都是游客。考查副词辨析。everywhere到处都是；anywhere任何地方；somewhere某地；nowhere无处。根据“visitorswere...onMayDaythisyear”结合常识可知五一到处都是游客。故选A。12．________myfather________mymotherwantstogototheconcertwithme,soIamgoingtobuythreetickets.A．Neither;nor B．Both;and C．Notonly;butalso D．Either;or【答案】C【详解】句意：不仅我爸爸，我妈妈也想和我一起去音乐会，所以我打算买三张票。考查连词辨析。neither…nor…既不……也不……；both...and...两者都；notonly…butalso…不但……而且……；either…or…或者……或者……。根据“soIamgoingtobuythreetickets”可知，爸爸和妈妈都想和我一起去音乐会，排除A、D项。both...and...连接两个并列成分作主语时，谓语动词用复数形式‌，而句中的“wants”是第三人称单数，排除B项。notonly...butalso...遵循“就近原则”，谓语动词的数与离它最近的主语保持一致，符合题意。故选C。13．—MrSmith,couldyoupleasegivemeafewminutesforsomequestions?—_________.A．Notmuch B．Sure.Goahead C．Helpyourself D．Soundsgreat【答案】B【详解】句意：——Smith先生，你能给我几分钟时间回答几个问题吗？——当然。问吧。考查情景交际。Notmuch不多；Sure.Goahead当然。问吧；Helpyourself请自便；Soundsgreat听起来很棒。根据“couldyoupleasegivemeafewminutesforsomequestions?”可知，想问对方几个问题，应该同意或委婉拒绝，所以最恰当的回答是“当然，你说吧”。故选B。14．Themathproblemwasreally________.Iworkeditoutonlyinfiveminutes.A．impossible B．simpleC．useful D．difficult【答案】B【详解】句意：这道数学题真的很简单。我只用了五分钟就解出来了。考查形容词辨析。impossible不可能的；simple简单的；useful有用的；difficult困难的。根据“Iworkeditoutonlyinfiveminutes.”可知，数学题很简单。故选B。15．Westudentsdon’tgotoschool________.Ourparentscantakeusoutsidetoenjoynature.A．onMonday B．onFridayC．onTuesday D．ontheweekend【答案】D【详解】句意：我们学生周末不上学。我们的父母可以带我们出去享受大自然。考查专有名词。onMonday在周一；onFriday在周五；onTuesday在周二；ontheweekend在周末。根据常识可知，学生在周末不上学。故选D。二、完形填空（本大题有10小题，每小题1分，共10分）I’maplantscientist.WhenItellpeopleaboutmyjob,theyaskme,“whydon’tyouworkhardonmore‘useful’16⁠likephysics?”Myanswertotheirquestionsiseasy:plantsciencecanhelp17⁠theworld.Millionsofpeopleintheworlddon’thave18⁠foodtoeateveryyear.It’snotbecausewecan’tproduceenoughfood,butbecausewe19⁠lotsofit.Theresearchonplantscanhelpmakethiswasteless.One20⁠isthatplantscientistscanslowdowntherotting(腐烂)ofapples.Sowecanstore(储存)theapples21⁠.Plantscienceisalsogoodfortheearth.Overall,plantscienceis22⁠useful.However,duringavisittoa23⁠,Iwassurprisedtofindthatfewofthestudentscouldrecognisethericeplantinascienceclass.Withoutinterestinplants,theywon’t24⁠theplantstudyinthefuture.Andtheywillneverknowabouttheimportanceofplantscience.Ithinkschoolscouldandshouldtryto25⁠thissituation.Plantscienceismuchmoreusefulthanmostpeoplethink.Ihopemorepeoplewillstudyit.16．A．chances B．plans C．exercises D．subjects17．A．feed B．treat C．connect D．shake18．A．bad B．popular C．enough D．different19．A．remember B．waste C．influence D．refuse20．A．example B．decision C．game D．pollution21．A．shorter B．earlier C．higher D．longer22．A．seldom B．really C．finally D．suddenly23．A．farm B．hospital C．cinema D．school24．A．joinin B．lookat C．writedown D．dieout25．A．share B．follow C．change D．connect【答案】16．D17．A18．C19．B20．A21．D22．B23．D24．A25．C【导语】本文主要介绍了植物科学的作用，并希望学校教育中有所涉及，让学生意识到植物科学的重要性。【详解】16．句意：你为什么不努力研究更“有用”的科目，比如物理？chances机会；plans计划；exercises锻炼；subjects科目。根据“physics”可知，此处应指学科。故选D。17．句意：我对他们的问题的回答很简单：植物科学可以帮助养活世界。feed喂养；treat对待；connect连接；shake摇晃。根据“Millionsofpeopleintheworlddon’thave…⁠foodtoeateveryyear.”可知，此处应指植物科学有助于喂养世界。故选A。18．句意：世界上每年有数百万人没有足够的食物吃。bad坏的；popular受欢迎的；enough足够的；different不同的。根据“Millionsofpeopleintheworlddon’thave…⁠foodtoeateveryyear.”可知，此处应指没有足够的食物。故选C。19．句意：这并不是因为我们没有生产足够的食物，而是因为我们浪费了太多的食物。remember记得；waste浪费；influence影响；refuse拒绝。根据“Theresearchonplantscanhelpmakethiswasteless.”可知，此处应指浪费。故选B。20．句意：一个例子是，植物科学家已经能够减缓苹果的腐烂。example例子；decision决定；game比赛；pollution污染。根据“Theresearchonplantscanhelpmakethiswasteless.”可知，对植物的研究可以有效地帮助减少浪费，因此此处是举例说明，通过减缓苹果的腐烂来减少苹果的浪费。故选A。21．句意：因此我们就可以把苹果储存得更长。shorter更短；earlier更早；higher更高；longer更长。根据“plantscientistscanslowdowntherotting(腐烂)ofapples”可知，减缓苹果的腐烂因此苹果就能储存更长时间。故选D。22．句意：总的来说，植物科学确实是有用的。seldom很少；really确实；finally最后；suddenly突然。根据“Sowecanstore(储存)theapples…⁠.Plantscienceisalsogoodfortheearth.”可知，植物科学确实有用。故选B。23．句意：然而，在参观一所学校时，我惊讶地发现，在科学课上，很少有学生能认出水稻。farm农场；hospital医院；cinema电影院；school学校。根据“fewofthestudents”以及“inascienceclass”可知，此处指的是学校。故选D。24．句意：如果对植物没有兴趣，他们将来就不会参加植物研究。joinin参加；lookat看着；writedown写下；dieout灭绝。根据“Withoutinterestinplants,theywon’t…theplantstudyinthefuture.”可知，此处应指对植物没有兴趣就不会参加植物研究。故选A。25．句意：我认为学校可以也应该尝试改变这种状况。share分享；follow跟随；change改变；connect连接。根据上文可知，学生们对植物科学不感兴趣，也不会参加植物研究，作者认为学校应改变这种情况。故选C。三、阅读理解（本大题有15小题，每小题2分，共30分）ATherearemorethan400,000kindsofplantsonEarth.Someplantsareasbigastallbuildings;othersareassmallasrice.Plantsplayanimportantpartinnaturebecausetheygiveoutoxygen—thegasthatallanimalsneedforbreathing.Whatisaplant?Mostpeoplehavenodifficultyfindingthedifferencesbetweenananimalandaplant.Thatisbecauseanimalscanmovearound,butplantscan’t.Whatmakesaplantaplant?Likeanimals,plantsarelivingthingsthataremadeupoflotsofcells(细胞).Unlikeanimals,plantsmaketheirownfoodbyphotosynthesis(光合作用).Mostplantshaveroots,stems,andleaves,andmostplantsreproducebygrowingflowersandmakingseeds.Allplantsneedenergytostayaliveandgrow,andtheygetitfromsunlightinsteadoffood.Howdoesaplantgrow?Mostanimalsgrowinacertainway,andgenes(基因)controltheirgrowth.Thatistosayevenwhentheyaresmall,it’seasytoknowwhattheywilllooklikeaftertheygrowup.Plantsaredifferent.Theirgrowthiscontrolledbygenestoo,buttheirfinalshapesalsodependonwheretheylive.Forexample,atreecanbebigandroundifitgrowsupinanopenspace,butmuchtallerandthinnerifitgrowsinthewoodswithothertreesallaround.Plantsareunabletomovefromoneenvironmenttoanother,soitisimportantthattheyareabletogetusedtotheenvironment.26．Wherecanwemostprobablyreadthepassage?A．Inanadvertisement. B．Inastorybook C．Inasciencemagazine. D．Inaposter.27．WhichofthefollowingisNOTmentionedinParagraph1?A．Numberofplants. B．Differentsizesofplants.C．Importanceofplants. D．Partsofplants.28．HowdoestheauthordescribetheplantsinParagraph2?A．Bycomparing. B．Bygivingexamples. C．Bygivingnumbers. D．Bytellingstories.29．Whatcanweknowaboutplantsfromthepassage?A．Flowersandseedsarethemostimportantpartsofaplant.B．Plantsandanimalsgrowinthesameway.C．Onlyenvironmentcontrolstheplants’growth.D．It’simportantfortheplantstogetusedtotheenvironment.30．Whichcanbethebesttitleforthepassage?A．ThePlantWorld B．PartsofaPlantC．PlantsandAnimals D．PlantsandEnvironment【答案】26．C27．D28．A29．D30．A【导语】本文主要介绍了植物世界的特点和生长方式。【详解】26．推理判断题。通读全文可知，本文主要介绍了植物世界的特点和生长方式，因此可在科学杂志中读到该文章。故选C。27．细节理解题。根据“Therearemorethan400,000kindsofplantsonEarth.Someplantsareasbigastallbuildings;othersareassmallasrice.Plantsplayanimportantpartinnaturebecausetheygiveoutoxygen—thegasthatallanimalsneedforbreathing.”可知，第一段提到的了植物的数量，大小不同的植物，以及植物的重要性，没有提到植物的一部分。故选D。28．细节理解题。根据“Mostpeoplehavenodifficultyfindingthedifferencesbetweenananimalandaplant.Thatisbecauseanimalscanmovearound,butplantscan’t.Whatmakesaplantaplant?Likeanimals,plantsarelivingthingsthataremadeupoflotsofcells(细胞).Unlikeanimals,plantsmaketheirownfoodbyphotosynthesis(光合作用).”可知，第二段是通过与动物对比来描述植物的。故选A。29．细节理解题。根据“Plantsareunabletomovefromoneenvironmenttoanother,soitisimportantthattheyareabletogetusedtotheenvironment.”可知，植物适应环境是很重要的。故选D。30．最佳标题题。根据通读全文可知，本文主要介绍了植物世界的特点和生长方式。故选A。BDoyouknowsunflowers?Todaywewillteachyouhowtoplantsunflowersandcareforthem.Part1Germinating(使发芽)sunflowerseeds●Chooseonekindofsunfloweryoulike.Startthefollowingstepswiththebesttemperature:18℃～33℃.

●Puttheseedsinaplasticbag.Putpapernapkins(纸巾)ontheseeds.Thenputtheminplasticbags.Whentheseedsgerminate,plantthem.Part2▲●Chooseasunnyplace.Sunflowersgrowbestwithsixtoeighthoursofsunlightaday.●Planttheseedsinholes.Planttheseeds2.5cmdeep.Thencovertheseedswithsoil.Part3Caringforsunflowerplants●Waterplantsonceaweek.●Fertilizealittleornotatall.●Harvesttheseeds.Sunflowersusuallytake80to120daystogrowupandproducenewseeds.Tips:Supportplantsover90cmwithsticks.31．Whichtemperatureisthemostsuitable(合适的)toplantsunflowers?A． B． C． D．32．Whichofthefollowingcanbeputin▲?A．PlantingsunflowerseedsB．ThinkingabouttheplaceofplantingC．WateringsunflowerplantsD．Checkingthetemperature33．IfyouplantyourseedsinApril,whenmayyouharvest?A．InJanuary. B．InMay. C．InJuly. D．InNovember.34．Howtallshouldplantsgrowbeforeyousupportthemwithsticks?A．Lessthan18cm. B．Lessthan33cm. C．Morethan90cm. D．Morethan120cm.35．Wherecanpeoplereadthepassage?A．Inasciencetextbook. B．Inagardeningmagazine.C．Inananimalnewspaper. D．Inachildren’sstorybook.【答案】31．C32．A33．C34．C35．B【导语】本文介绍了如何种植和照顾向日葵。31．细节理解题。根据“Startthefollowingstepswiththebesttemperature:18℃～33℃.”可知，18℃～33℃适合种植向日葵。故选C。32．推理判断题。根据“Chooseasunnyplace.Sunflowersgrowbestwithsixtoeighthoursofsunlightaday.”和“Planttheseedsinholes.Planttheseeds2.5cmdeep.Thencovertheseedswithsoil.”可知，此处应是种植向日葵种子的步骤。故选A。33．推理判断题。根据“Harvesttheseeds.Sunflowersusuallytake80to120daystogrowupandproducenewseeds.”可知，向日葵通常需要80到120天的时间长大并结出新种子，因此四月种植，七月左右可以收获。故选C。34．细节理解题。根据“Supportplantsover90cmwithsticks.”可知，植物长到90厘米以上时需要用棍子支撑。故选C。35．推理判断题。通读全文可知，文章介绍了如何种植和照顾向日葵，可能来自园艺杂志。故选B。CDoyouknowtreerings(年轮)cantellussomething:whattheweatherwaslikeevenhundredsofyearsago?Atreewillgrowwellinaclimatewithlotsofsunlightandrainfall.Inotherwords,littlesunlightorrainfallwilllimitthegrowthofatree.Wecanstudythetreeringstoknowthechangesofclimate.Forexample,ifwewanttoknowtheweatheroftenyearsago,counttheringsofatreefromtheoutside(外面)totheinside.Ifthetenthringisfarfromtheeleventhring,we’resurethatitwassunnyandrainymostofthatyear.However,ifthetenthringisneartheeleventhring,thentheclimateofthatyearwasbad.Treeringsareimportant,notonlyforstudyingthehistoryofweather,butalsoforstudyingthehistoryofpeople.Manycenturies(世纪)agotherelivedalotofpeopleinaplaceinNewMexico.Butnowtherearenotrees,nopeople.Whathappenedtothatplace?Ascientiststudiedtheringsofthedeadtreesthere.Hefoundthatthepeoplehadtoleavetherebecausetheycutdownallthetreestomakefiresandbuildings.Becausetherewasnotatreeleft,peoplehadtomove.36．Accordingtothepassage,howcanpeoplefindoutthechangesofclimate?A．Bystudyingsunlight. B．Bystudyingrainfall.C．Bystudyingtreerings. D．Bystudyingtheleavesoftrees.37．Whatdoestheunderlinedword“limit”inParagraph1mean?A．Help. B．Stop. C．Protect. D．Miss.38．WhichofthefollowingisTRUE?A．Snowandwindwillhelpthetreegrow.B．Wecanonlycounttreeringsfromtheinsidetotheoutside.C．Treeringscanhelpuslearna