Unit7-2023-2024学年九年级英语上册单元速记巧练（牛津上海版）

Unit7Escapingfromkidnappers【单元测试·基础卷】（解析版）学校:___________姓名：___________班级：___________考号：___________一、单项选择1．Larrywantstorun_________thantheotherboysinhisclass,sohepracticesrunningeveryday.A．fast B．faster C．fastest D．muchfast【答案】B【详解】句意：拉里想比班上其他男孩跑得更快，所以他每天都练习跑步。考查比较级。than前用比较级，副词fast的比较级为faster。故选B。2．It’scoldanddryinwinter________thenorthofChina.A．in B．on C．to D．by【答案】A【详解】句意：在中国的北方，冬天又冷又干。考查介词辨析。in在……里面；on在……上面；to向，朝着；by被。根据“thenorthofChina”可知，此处应表达在中国北方，因此用in。故选A。3．Switzerlandis________EuropeancountryandJapanis________Asiancountry.A．a;a B．an;an C．a;an D．an;a【答案】C【详解】句意：瑞典是一个欧洲国家，日本是一个亚洲国家。考查冠词用法。a一个，修饰以辅音音素开头的单词；an一个，修饰以元音音素开头的单词。第一个空，European是以辅音音素/j(u)/开头，用a修饰；第二个空，Asian是以元音音素/eɪ/开头，用an修饰。故选C。4．—________doyoupracticelistening?—IoftenwatchEnglishprograms.A．How B．Who C．Why D．What【答案】A【详解】句意：——你怎么练习听力？——我经常看英语节目。考查特殊疑问句。how如何；who谁；why为什么；what什么。根据“IoftenwatchEnglishprograms.”可知，询问练习听力的方式，应用how，故选A。5．Ithasbeenfiftyyearssincemygrandfather________hishometown.A．leaves B．hasleft C．left D．willleave【答案】C【详解】句意：我祖父离开家乡已经五十年了。考查现在完成时。根据“Ithasbeenfiftyyearssincemygrandfather...hishometown.”可知，是自从祖父离开家乡，已经过去50年了。since“自从”，用于现在完成时，后面句子用一般过去时。故选C。6．—Theplane________intwohours.—Ican’twaittoseemygrandparents.A．lands B．landed C．willland D．havelanded【答案】C【详解】句意：——飞机将在两小时后降落。——我等不及要见我的祖父母了。考查一般将来时。lands一般现在时；landed一般过去时；willland一般将来时；havelanded现在完成时。根据“intwohours”可知，本句应用一般将来时，故选C。7．—Ihearthe19thAsianGames________.Isittrue?—No,it’sjustarumor(谣言).Itwillbeheldonanewdatein2023.A．cancelled B．wascancelled C．willcancel D．hascancelled【答案】B【详解】句意：——我听说第十九届亚运会被取消了，是真的吗？——没有，只是谣言，它将会在2023年在一个新的日期中被举办。考查被动语态。主语“the19thAsianGames”与“cancel”之间是被动关系，应用被动语态，选项中只有B项是被动语态，故选B。8．—Peter,whatdifficultyhaveyouhad________Englishsofar?—Mum,I’mweakinlistening.Luckily,Ioftengetsomeadvicethatisworth________fromMrWu.A．tolearn;totake B．tolearn;taking C．learning;taking D．learning;totake【答案】C【详解】句意：——Peter，到目前为止，你学习英语有什么困难？——妈妈，我听力不好。幸运的是，我经常从吴老师那里得到一些值得借鉴的建议。考查非谓语动词。havedifficultydoingsth“做某事有困难”，beworthdoingsth“值得做某事”，都是固定搭配，故选C。9．—Excuseme,couldyoutellme________?—Goalongthestreet.You’llseeitonyourright.A．howfaristhebookstore B．howfarthebookstoreisC．whereisthebookstore D．wherethebookstoreis【答案】D【详解】句意：——对不起，你能告诉我书店在哪里吗？——沿着这条街走。你会看到它在你的右边。考查宾语从句。句子是宾语从句，用陈述语序，排除AC；根据“Goalongthestreet...”可知此处是问路，询问某地在哪里，用where引导宾语从句。故选D。10．I’lletoseeyouthisevening________Icanstayforafewminutes.A．asif B．sothat C．aslongas D．eventhough【答案】D【详解】句意：今晚我要来看你，虽然我只能待几分钟。考查连词辨析。asif好像；sothat以便；aslongas只要；eventhough尽管。根据“I’lletoseeyouthisevening...Icanstayforafewminutes.”可知前后是让步关系，应用eventhough引导让步状语从句，故选D。二、短文选词填空根据短文内容，从方框中选出恰当的单词或短语填空，使语意通顺完整。第一个方框供15小题选用，第二个方框供610小题选用。每个选项只能使用一次，每框有一项剩余。A．notonly

B．help

C．atfirst

D．nothing

E.but

F.something19yearoldMarthaLarsenhasbeenapersonaltrainer（教练）foroverayear.Whenshewasyounger,shewantedtobeafootballer,11shebrokeherlegattheageof16,andafootballercareer(事业)wasnotpossibleanymore.“Iwassad12,”shesays.“Somyparentsadvisedmetojoinagym.Igrewtolovethat,andsoonIwashelpingothersgetstarted.”Beforelong,peoplewereingtoMarthafor13.Nowshehasover40students—somemorethantwiceherage!Shebelievessheoffers14othertrainersdonot.“Withme,it’snotjustaboutgettingfitter,”shesays.She15makesherstudentstrainveryhard,butalsohelpsthemthinkaboutwhattheyshouldeat.“Eatinghealthilyissoimportant.IfIdomyjobwell,mystudentswillsleep,workandplaybetter.”A．dreamof

B．which

C．further

D．makeenoughmoney

E.payfor

F.whoWhatadvicewouldMarthagivesomeone16wantstogetfit?“Themostimportantthingisnottowaituntilyoucan17apersonaltrainer.Thetimetobeginisnow.Startslowlywithshortruns,andgo18eachday.Soonyou’llbereadyforthegym.”Marthastillliveswithherparents,butshedoesn’twanttostaytherefortoolong.“Alotofpersonaltrainers19movingtoHollywoodandgettingrichbytrainingthestars,”shesays.“I’llbehappyifI20tobuymyownapartment.Idon’tneedtochange.”【答案】11．E12．C13．B14．F15．A16．F17．E18．C19．A20．D【导语】本文是一篇记叙文。文章介绍了19岁的私人教练MarthaLarsen。11．句意：当她年轻的时候，她想成为一名足球运动员，但她在16岁时摔断了腿，足球生涯再也不可能了。根据“Whenshewasyounger,shewantedtobeafootballer,...shebrokeherlegattheageof16,andafootballercareer(事业)wasnotpossibleanymore.”可知，前后两句话为转折关系，需用转折连词连接。表示但她在16岁时摔断了腿，足球生涯再也不可能了。选项E“但是”符合题意，故选E。12．句意：“一开始我很难过，”她说。根据“Iwassad...”可知，本句话缺状语，意为一开始我很难过，选项C“一开始”符合题意，介词短语作状语，故选C。13．句意：不久，人们纷纷向玛莎求助。根据“Beforelong,peoplewereingtoMarthafor...”可知，此空缺宾语，又根据“Nowshehasover40students—somemorethantwiceherage!”可知，此处表达人们纷纷向玛莎求助，选项B“帮助”符合题意，名词作宾语。故选B。14．句意：她相信自己提供了其他培训师所没有的东西。根据“Shebelievessheoffers...othertrainersdonot.”可知，此空缺宾语，又根据“She...makesherstudentstrainveryhard,butalsohelpsthemthinkaboutwhattheyshouldeat.”可知，此处表示玛莎提供了其他培训师所没有的东西。选项F“一些东西”符合题意，不定代词作宾语，故选F。15．句意：“对我来说，这不仅仅是为了变得更健康，”她说。她不仅让学生们刻苦训练，还帮助他们思考应该吃什么。根据“She...makesherstudentstrainveryhard,butalsohelpsthemthinkaboutwhattheyshouldeat.”可知，此为notonly...butalso...句型，意为”不仅……而且……“，选项A”不仅“符合题意，故选A。16．句意：玛莎会给想要健身的人什么建议？根据“WhatadvicewouldMarthagivesomeone...wantstogetfit?”可知，本句为定语从句，从句中缺主语且指代人，选项F“谁”符合题意，故选F。17．句意：最重要的是不要等到你能支付私人教练的费用。根据“Themostimportantthingisnottowaituntilyoucan...apersonaltrainer.”可知，本空缺谓语，表达能支付私人教练的费用，选项E“支付”符合题意，故选E。18．句意：从短距离跑步开始，慢慢地开始，每天走得更远。根据“Startslowlywithshortruns,andgo...eachday.”可知，本空缺副词，意为走得更远，选项C“更远地”符合题意，故选C。19．句意：很多私人教练都梦想着搬到好莱坞，通过培训明星来致富。根据“Alotofpersonaltrainers...movingtoHollywoodandgettingrichbytrainingthestars,”可知，本空缺谓语，意为梦想搬到好莱坞，dreamofdoing“梦想做某事”，选项A“梦想”符合题意，故选A。20．句意：如果我能赚到足够的钱买自己的公寓，我会很高兴的。我不需要改变。根据“I’llbehappyifI...tobuymyownapartment.Idon’tneedtochange.”可知，本空缺谓语，意为赚到足够的钱买自己的公寓，makeenoughmoneytodo“赚足够的钱做某事”，选项D“赚足够的钱”符合题意，故选D。三、用所给单词的正确形式填空21．Lindaisso(care)thatsheoftenmakesmistakesinherhomework.【答案】careless【详解】句意：琳达太粗心了，以至于她经常在家庭作业中出错。分析句子可知，句子是含有so…that的结果状语从句，其结构为：so+形容词+that从句，又由“sheoftenmakesmistakesinherhomework”可知，此处应该是说她做作业很粗心，careless“粗心的”，形容词。故填careless。22．Theoldmanregardshisdaughterasthemost(value)treasure.【答案】valuable【详解】句意：这位老人把他的女儿视为最宝贵的财富。空后是名词treasure，此空应用形容词valuable“宝贵的”，作定语。故填valuable。23．Homeisthebestand(warm)placewhereveryougo.【答案】warmest【详解】句意：无论你去到哪里，家都是最好、最温暖的地方。此处是and连接的两个形容词作定语，根据空格前的“thebest”可知，空格处也应用warm的最高级，故填warmest。24．WehopethatChinawillbeoneof(wealth)nationsinthenearfuture.【答案】thewealthiest【详解】句意：我们希望中国在不久的将来成为最富有的国家之一。空处修饰名词nation，应用wealth的形容词wealthy“富有的”，“oneofthe+形容词最高级+名词复数”表示“最……的……之一”，wealthy的最高级是wealthiest，故填thewealthiest。25．Ofallthevegetables,Ithinktomatoisthe(tasty)andhealthiest.【答案】tastiest【详解】句意：在所有的蔬菜中，我认为番茄是最美味、最健康的。tasty“美味的”，形容词，作表语。根据“healthiest”可知，此处应用其最高级形式。故填tastiest。26．Myhometownisinthe(south)partofChina.【答案】southern【详解】句意：我的家乡在中国的南部。根据“part”可知，此处修饰名词，用形容词作定语。故填southern。27．Apersondoesn’tspendhis/hertimeandmoneyfoolishly.(practice)【答案】practical【详解】句意：实干家不会愚蠢地花费他（她）的时间和金钱。分析句子可知横线上缺的是形容词修饰名词person。所以将practice变成practical“实际的”。故填practical。28．Pleaseprepareascheduleforthemeetingtobeheldnextmonth.(detail)【答案】detailed【详解】句意：请为下个月举行的会议准备一份详细的时间表。分析句子可知，此处应用形容词修饰名词，detailed“详细的”，形容词。故填detailed。四、句型转换Rewritethefollowingsentencesasrequired（根据所给要求，改写下列句子。每空格限填一词)29．Theysoldoutalltheticketsfortheacrobaticshow.（改为否定句）They____

____outalltheticketsfortheacrobaticshow.30．TheGermanarchitectswillreturntotheirhometowninamonth.(对划线部分提问)willtheGermanarchitectsreturntotheirhometown?31．Maryseldomhadlunchattheschoolcafeterialastsemester.(改为反义疑问句)Maryseldomhadlunchattheschoolcafeterialastsemester，？32．Tom'scousindoesaparttimejob.Hecangetmoreworkingexperience.（保持原句意思）Tom'scousindoesaparttimejobtogetmoreworkingexperience.33．ManyparentsinChinadon'tallowthekidstohavetheirownbankcards.(改为被动语态)ThekidsinChinatohavetheirownbankcards.34．Tomwantstoknow```DoesEddieenjoylivinginthesuburbs?(改为宾语从句)TomwantstoknowEddielivinginthesuburbs.35．with,it,thestudents,necessary,language,to,a,isenvironment,provide.(连词成句).【答案】29．didn’tsell30．Howsoon31．didshe32．inorder/soas33．aren’tallowed34．if/whether,enjoys35．Itisnecessarytoprovidethestudentswithalanguageenvironment.【分析】试题分析：29．根据题干要求改为否定句此题应加助动词did，并把sold改为动词原形，所以填didn’tsell。30．此题划线部分是将来多久，所以用Howsoon提问。31．此题改为反意疑问句应填didshe。32．根据题干分析此空应填inorder。33．根据要求改为被动语态此题应填aren’tallowed。34．根据题目要求改为宾语从句此题应填if,enjoys。35．此题可连接成句子为：Itisnecessarytoprovidethestudentswithalanguageenvironment.考点：句型转换五、阅读单选The“GreatGreenWallofChina”projectisoverfortyyearsold.Inthisproject,peopleplanttreesinNorthernChina.Whyaretreessoimportanttous?Becauseitishealthytolivearoundtrees.Theycankeepushealthy,justlikedoctors.Sowecallthem“doctortrees”.Treescancleantheair.Forpeopleinlargecitieswithairpollution,treescanbeveryimportant.Workersareplantingtreesnotjustincityparks.Theyarealsoplantingtreesalongstreetstohelpcleantheair.Somescientiststhinkthattreesnotjusthelpcleantheair.Theyarealsogoodforourhealth.Astudyshowsthatpeopleinhospitalsfeelbetterwhentheycanseetreesfromtheirrooms.Andpeoplewithtreesneartheirhomesusuallyexercisemore.Scientistsarealsostudyingthehealthyeffects（作用）oftreesonhumanminds.Oneeffectoftreesisthattheymakepeoplefeelhappyandrelaxed.Whenpeoplegothroughtheneighborhoodwithmoretrees,theywillwalkslowerandtalkmoreoftenwitheachother.Ofcourse,anothergoodeffectisthat“doctortrees”workforfree!36．Inthe“GreatGreenWallofChina”project,peopleplanttreesin________.A．EasternChina B．SouthernChina C．WesternChina D．NorthernChina37．Whereareworkersplantingtreesaccordingtothepassage?A．Incityparks. B．Alongstreets.C．Incityparksandalongstreets. D．Incityparksandalongrivers.38．Accordingtothestudy,peopleusuallyexercisemoreneartheirhomeswith________.A．flowers B．trees C．rivers D．hills39．Fromthepassage,whichofthefollowingisTRUE?A．Treescancleantheairandbegoodforourhealth.B．The“GreatGreenWallofChinaproject”isoverfiftyyears.C．Peopleinhospitalsfeelbetterwhentheycanseedoctorsfromtheirrooms.D．Peoplewillwalkfasterwhentheygothroughtheneighborhoodwithmoretrees.40．Thispassageprobablyesfrom________.A．adiary B．amap C．aletter D．anaturemagazine【答案】36．D37．C38．B39．A40．D【导语】本文主要介绍了中国的“绿色长城”项目以及树木对人类的好处。36．细节理解题。根据“Inthisproject,peopleplanttreesinNorthernChina.”可知，这个项目是让人们在中国北方植树。故选D。37．细节理解题。根据“Workersareplantingtreesnotjustincityparks.Theyarealsoplantingtreesalongstreetstohelpcleantheair.”可知，工人们在城市公园和街道边上种树。故选C。38．细节理解题。根据“Andpeoplewithtreesneartheirhomesusuallyexercisemore.”可知，如果家附近有树，人们通常锻炼得更多。故选B。39．细节理解题。根据“Somescientiststhinkthattreesnotjusthelpcleantheair.Theyarealsogoodforourhealth.”可知，树能够净化空气，还对人的健康有益，A正确。故选A。40．推理判断题。本文主要介绍了中国的“绿色长城”项目以及树木对人类的好处，最可能来自一本自然杂志。故选D。六、完形填空Choosethewordsorexpressionsandpletethepassage(选择最恰当的单词或词语完成短文)Somepeoplefindvisitingordinarymuseumstobeabitdry.Luckilyforthem,thereareunusualmuseumstocheckout,suchasunderwatermuseums!Manyunderwatermuseumsare41bypaniesthatofferguidedtours.Dependingonthedepthofthemuseum,visitorsmaybeabletoviewthesculpturesfromaglassbottomedboatorbyswimmingonthesurface.Otherunderwatermuseumsaredeeperandaremostsuitablefordivers.Oneoftheirmainpurposesistocreateamanmadereef(礁)environmentwhereseacreaturescanlive.That’s42someofthemuseumsarelocatedinareasthatweredamagedbyhurricanes(飓风)orareconsideredunderwater“deserts”.Thestatuesinthemuseumaredesignedinawaythatencouragesthegrowthofcoralandplantlife.Overtime,thestatutesandplantsattractedmoreandmorefishtothearea.Floridaishometodifferenttypesofunderwatermuseums.Thestate’snewestunderwatermuseum,theUnderwaterMuseumofArtcanbefoundoffthecoastofGraytonBeach.ThispartoftheGulfofMexicoisanunderwaterdesert,socreatorshopethattheexhibitwill43theoceanenvironment.Cancun,MexicoForyears,Cancunhasbeenapopular44.Andoneofthemajordrawsisthewater.TheMuseoSubacuaticaodeArteisanidealplacefordivers.Theretheycanenjoymorethan500statuesthathelptobuildamanmadereef.Thismuseumwascreatedtogivevisitorsanotherchoicebecausethearea’s45reefhasbeendamaged.CanaryIslands,SpainMuseoAtlanticohasanimpressivedisplayofmorethan300statues.Theyfocusonman’sinteractionwiththemarineworld.Ifyouarelookingforadifferentmuseum46,checkoutonethat’sunderwater!41．A．predicted B．supported C．divided D．examined42．A．why B．how C．what D．where43．A．discover B．imagine C．manage D．improve44．A．magictower B．weatherforecast C．touristdestination D．openingceremony45．A．national B．natural C．colorful D．beautiful46．A．experience B．address C．guide D．business【答案】41．B42．A43．D44．C45．B46．A【导语】本文是一篇说明文，介绍与众不同的水下博物馆。41．句意：许多水下博物馆都得到了提供导游服务的公司的支持。predicted预测；supported支持；divided划分；examined检查。根据“Manyunderwatermuseumsare...bypaniesthatofferguidedtours.”可知，水下博物馆得到了提供导游服务的公司的支持。故选B。42．句意：这就是为什么一些博物馆位于被飓风破坏的地区或被认为是水下“沙漠”的地区。why为什么；how如何；what什么；where哪里。根据“That’s...someofthemuseumsarelocatedinareasthatweredamagedbyhurricanes(飓风)orareconsideredunderwater“deserts”.”和上下文内容可知，此处在解释原因，故选A。43．句意：墨西哥湾的这一部分是水下沙漠，所以创作者希望这次展览能改善海洋环境。discover发现；imagine想象；manage管理；improve改善。根据“socreatorshopethattheexhibitwill...theoceanenvironment”可知，希望能改善海洋环境，故选D。44．句意：多年来，坎昆一直是受欢迎的旅游胜地。magictower魔法塔；weatherforecast天气预报；touristdestination旅游胜地；openingceremony开幕式。根据“Cancunhasbeenapopular...”可知，坎昆是受欢迎的旅游胜地，故选C。45．句意：这座博物馆的建立是为了给游客提供另一种选择，因为该地区的天然珊瑚礁已经遭到破坏。national国家的；natural自然的；colorful彩色的；beautiful美丽的。根据“Thismuseumwascreatedtogivevisitorsanotherchoicebecausethearea’s...reefhasbeendamaged.”可知，天然珊瑚礁已经遭到破坏，故选B。46．句意：如果你正在寻找一种不同的博物馆体验，那就去看看水下博物馆吧！experience经历；address地址；guide导游；business生意。根据“Ifyouarelookingforadifferentmuseum...,checkoutonethat’sunderwater!”可知，是不同的博物馆体验，故选A。七、短文首字母填空Fillintheblankswithproperwords（在短文的空格内填入适当的词，使其内容通顺。每空格限填一词，首字母已给）Whosayskidscan’tmakeadifference?InMissouri,agroupofstudentsarec47livesaroundtheworld!Howaretheydoingthis?They’rebuyingfarmanimals.Millionsofpeoplelivewithlittlefoodandmoney,sothegiftofananimalcana48savelives.Morethan10yearsago,thesecondgradersatForsythSchoollearnedabouthowHeiferInternationalhelpspeople.Theydecidedthattheywantedtohelp,too.Heiferisanorganizationthathasbeen“turninghungerandpovertyintoh49”foralmost70years.Itdoesthisbygivingfarmanimalstopoorpeopleandteachingthemhowtousetheanimalstoimprovetheirlives.Thelogo(徽标)ofHeiferisayoungcow,andithasbeeasymbolofHeifer’swork.That’sbecausefamilieswithacowcanp50milkthattheycandrinkandtradeotherthingstheyneed.Animalssavelivesino51ways,too.Stronganimals,suchaswaterbuffaloes(水牛),canplowland(犁地).Familieswithawaterbuffalocangrowmorefoodtoeatandsell.Heiferalsogivessuchanimalsasgoats,sheep,camelsandevenbeestofamiliesinneed.Eachsecondgradeclassattheschooldecideswhichanimalstobuyandhowmuchtogivetospecialprojects.B52,thestudentsraisemoneybyrecyclingcansandmakingjewelries.Awaterbuffalocosts$250.Thatneedsalotofrecycledcans!Kidscandomanythingstohelpothers.YourclassmightwanttoraisemoneyforHeifer,too.Youmighta53wanttogiveawayyourmoneyoryourtimetoagroupinyourmunitythathelpspeople.Whynottalkwithyourclassmatesabouthowyourschoolcanhelpothers?【答案】47．(c)hanging48．(a)ctually49．(h)ope50．(p)roduce51．(o)ther52．(B)esides53．(a)lso【导语】本文是一篇记叙文，主要讲述一群孩子正在改变世界，他们在农场买动物，通过了解“国际小母牛组织”来帮助穷人，让他们摆脱贫穷。47．句意：在密苏里州，一群学生正在改变世界各地的生活!根据“Whosayskidscan’tmakeadifference?”可知，作者认为孩子可以带来改变，change表示“改变”，由“are”可知，时态是现在进行时，要用现在分词。故填(c)hanging。48．句意：数以百万的人生活在缺乏食物和金钱的环境中，所以用一只动物作为礼物事实上可以拯救生命。根据下文“Animalssavelives”可知，动物确实能救人们的生命，结合“sothegiftofananimalcan...savelives”可知，此处应该填副词修饰谓语“cansave”。actually表示“事实上”。故填(a)ctually。49．句意：“小母牛”是一个近70年来一直“将饥饿和贫困转化为希望”的组织。根据“Itdoesthisbygiving...improvetheirlives.”可知，“小母牛”改善他人生活，所以是把贫困变成希望。故填(h)ope。50．句意：这是因为有奶牛的家庭可以生产牛奶，他们可以喝，也可以换取他们需要的其他东西。根据“That’sbecausefamilieswithacowk”和首字母可知，有了奶牛，家里就可以生产牛奶，produce表示“生产”。故填(p)roduce。51．句意：动物也以其他方式拯救生命。根据“Stronganimals,suchaswaterbuffaloes(水牛),canplowland(犁地).Heiferalsogives...evenbeestofamiliesinneed.”可知，不同的动物能用其他方式改善人们的生活。other表示“其他的”，形容词，作定语修饰ways。故填(o)ther。52．句意：此外，学生们通过回收易拉罐和制作珠宝来筹集资金。根据“Eachsecondgrade...givetospecialprojects；...thestudentsraisemoneybyrecyclingcansandmakingjewelries”可知，孩子们决定购买哪些动物，而且，他们通过收集易拉罐和制作珠宝筹集资金，besides“而且”。故填(B)esides。53．句意：你可能也想把你的钱或时间捐给社区里帮助别人的团体。根据“YourclassmightwanttoraisemoneyforHeifer,too.”和首字母可知，受到班级同学影响，你可能也想把钱捐给其他公益团体。also表示“也”，置于情态动词后。故填(a)lso。八、阅读回答问题阅读下面的短文，根据短文内容回答问题。Dinosaurs(恐龙)oncelivedontheearthforalongtime.Theysuddenlydisappearedmillionsofyearsago.Whathappenedtothem?That’sstillamystery.Peopleneverstopsearchingfortheanswer.SomeUSscientistssayitisbecausetherewerenotenoughmale(雄性的)dinosaurs.Theygotthisideaafterresearchingcrocodiles(鳄鱼).Mothercrocodileslayeggsandlaterbabycrocodileseout.Thelocaltemperaturedecidesthesex(性别)ofthebabycrocodile.Whentheeggsareatatemperatureof26℃to30℃,thebabiesareallgirls;whenthetemperatureis30℃to34℃,therearebothboysandgirls;whenitis34℃to36℃,onlyboysareborn.Dinosaurs’babiesalsocamefromeggs.Soscientistshavegivenusanewpicture:millionsofyearsago,itsuddenlybecameverycold.Almostalldinosaurbabiesweregirls.Therewerefewerandfewermaledinosaurs.Motherdinosaurscouldnotgivebirthtomorebabies.Finally,thesepowerfulanimalsdisappeared.54．Whendiddinosaurssuddenlydisappear?55．WheredidDinosaurs’babiesefrom?56．Whatdecidesthesexofthebabycrocodile?57．Arethebabycrocodilesonlyboyswhenit’s35℃?58．AccordingtosomeUSscientists,whydiddinosaurssuddenlydisappear?【答案】54．Millionsofyearsago.55．Eggs./Dinosaur’sbabiescamefromeggs.56．Thelocaltemperature.57．Yes,theyare.58．Becausetherewerenotenoughmaledinosaurs.【导语】本文主要是讲述科学家从研究鳄鱼获得灵感，推断恐龙突然消失的原因。54．根据“Theysuddenlydisappearedmillionsofyearsago.”可知恐龙在数百万年前突然消失，故填Millionsofyearsago.55．根据“Dinosaurs’babiesalsocamefromeggs”可知恐龙宝宝来自于恐龙蛋，故填Eggs./Dinosaur’sbabiescamefromeggs.56．根据“Thelocaltemperaturedecidesthesex(性别)ofthebabycrocodile.”可知当地温度决定鳄鱼宝宝的性别，故填Thelocaltemperature.57．根据“whenitis34℃to36℃,onlyboysareborn.”可知温度在34℃到36℃之间时，鳄鱼宝宝是雄性，故填Yes,theyare.58．根据“SomeUSscientistssayitisbecausetherewerenotenoughmale(雄