内部文件，版权追溯 内部文件，版权追溯 课时训练(三) Units1-4(七下)
(限时:30分钟)
Ⅰ.[2024·连云港]阅读理解
Batsaretheonlymammalsthatcanflyagreatdistance,bu
ttheyhaveanotherability.Manybatsliveaverylongtimeforananimaltheirsize.
Europeanresearchersarestudyingbatstounderstandwhytheylivesolong.Theyhopetomakediscoveriestofighttheagingprocess(过程)inhumanbeings.
Lastweek,thegroupofscientistssaidtheyhadfoundimportantbiologicalqualitiesinsomebatspecies.Thegroupstudiedbatchromosomes(
染
色
体),alineofgenesfoundinthenucleus(核)ofcells.Thescientistsweremostinterestedinpartsconnectedtotheendsofthechromosomes.Theyarecalledtelomeres(
端
粒).Telomeresprotecttheendsofchromosomes,whichshorteneachtimeacelldivides.Scientistsbelievethisshorteningprocesscausescellstobreakdown. .
AreportonbatswaspublishedthismonthinthejournalScienceAdvances.
AmongtheleadersofthestudywasEmmaTeeling,abiologistwithUniversityCollegeDublininIreland.Teelingsaidstudyinglong-livingmammalsthathavedevelopedwaystofightaging 子
)basisofextended
‘
“
isanotherwaytoprovethemolecular(
’
分”
healthlength.
Sheaddedthatstudyingbatsmadescientistsabletolearnmoreabouttheprocesses “thatdrivehealthyaging.”
TheEuropeanresearchersstudied493batsfromfourbatspecies.Thegroupusedinformationthathadbeengatheredoverm
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orethan60years.Oftheseanimals,thegreatermouse-earedbatgenerallylivedthelongest,anaverageof37years.
Thescientistssaidthis
andarelatedspecies,whicharegroupedtogetherunderthenameMyotis,hadt
elomeresthatdidnotshortenwithage.AnotherMyotisbatholdstherecordforoldestage,reaching41years.
Thescientists’find
ingssuggestthatthesebats’cellshavetheabilitytokeepandrepairtheirtelomeres.This,theysaid,helpsguardagainsttheagingprocess.Basedonitsbodysize,abatlikethegreatermouse-earedbatwouldbeexpectedtolivefouryears.But,thesemammalshavebeenfoundtolivenearly10timeslongerthanthat.
ThescientistsfoundthatEighteenofthesearebats.TheonlyexceptionisanunusualAfricanrodent,thenakedmolerat. 1.WhichsentencecanbeputattheendofParagraph3? A.Thismakesscientistsabletostudybats. B.That’swhybatscanflyagreatdistance. C.Theysaythisiswhatcausesaging.
D.Theydiscoverthecellsconnectedtohumans. 2.Whydosomespeciesofbatsliveaverylongtime?
A.Becausetheyhavealineoflong-livinggenesoutofthecells.
B.Becausetheircellshavetheabilitytokeepandrepairtheirtelomeres. C.Becausetheyhaveanotherabilitytolivelongerwithoutanyfoodorwater. D.Becausetelomeresprotecttheendsofchromosomestostopcellsdividing. 3.Theunderlinedword “that” refersto . A.fouryears
B.bodysize
C.theagingprocess
4.What’sthebesttitleofthepassage?
D.theabilitytorepair
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A.DifferencesBetweenLong-livingAnimals B.AScienceReportonChromosomes C.DoBatsHoldtheSecrettoLongLife?
D.AreHumansandBatsSimilarinProtectingThemselves? Ⅱ.[2017·绍兴]完形填空
AsanewteacheratDoullPrimarySchoolinDenver,KyleSchwartzthoughtofasimplewaytogettoknowherthirdgraders,mostofwhomcamefrom
5
families.Sheaskedthemtocompletethe
6
“Iwishmyteacherknew…”
andsharesomethingaboutthemselves. “
Their
7
answersgavetheteacherachancetounderstandherstudents’difficulties. nopencilstodomyhomework,
”
8
onechild.
IwishmyteacherknewIhave
“Iwishmyteacherknewsometimesmyreadinghomeworkisnotsigned(签名),becausemymomisnot 9 alot,” wroteanother.Somesharedhopeforthe 10 , “IwishmyteacherknewthatIwanttogotocollege.”
“
Somenotesarereallyheartbreaking,
”
SchwartztellsABCNews.
“
Icare
11 12 13
abouteachofmystudentsandIdon’twantthemtobepoorforever,” sheexplains. “Ihopedtoknow Icouldbettersupportthem.SoI
toletthemtellmewhatIneededtoknow.ThatwaswhyIcreatedthefill-in-the-blankexercise.” 地
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thethirdgraderswereallowedtoansweranonymously(
匿
名15
),mostwantedtoincludenames.Andsomewereevenexcitedtoreadtheirnotesoutloud,
oneshygirlwhobravelysaidthatshewaslonely. “Aftershetoldtheclass, ‘Idon’thavefriendsto 16 me,’ Iwasworriedwhattheywoulddo,
”
SchwartztellsUsWeekly.
“However,Ifeltencouragedtoseehowmuchsupporttheotherkidsoffered 17 .Theyinvitedhertoplayatbreakandsitwiththematlunch.Yousee, 18 haveanunusualabilitytoexpressempathy(同情).”
“
Theresultshavebeen
19
,
”
saysSchwartz.
“Itspeakstotheimportanceofgivingpeopleavoiceandreallylisteningtothem.” 5.A.traditional
B.friendly
C.poor
D.small
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6.A.postcard 7.A.honest 8.A.suggested 9.A.free 10.A.society 11.A.secretly 12.A.where 13.A.decided 14.A.Unless 15.A.like 16.A.lookfor 17.A.him 18.A.children 19.A.boring
B.note B.polite B.copied B.careless B.course B.deeply B.why B.refused B.Though B.from B.talkabout B.you B.teachers B.surprising
C.letter C.usual C.repeated C.famous C.research C.nervously C.how C.forgot C.Because C.against C.dependon C.her C.parents C.worrying
D.diary D.right D.wrote D.angry D.future D.directly D.when D.learned D.Once D.except D.playwith D.me D.reporters D.relaxing
Ⅲ.[2024·盐城改编]语法填空
阅读下面材料,在空白处填入适当的内容(1个单词)或括号内单词的正确形式。
Over2,000yearsago,inChina,therelivedaboycalledConfucius.Whenhewasonlythree,hisfather20.
(die).Hismotherwasverypoor.Inthosedayspeoplehadtopaytogotoschoolandhismotherdidnothaveenoughmoney21. (send)him.
AsConfuciusgrewuphewantedtolearnthings.Sohedecidedtoteach22.
(him).Unfortunately,hewasastrange-lookingboy.Theotherchildrenpointedandmadefunofhim.Theycalledhimnamesandlaughed23. him.Confuciusgotveryupset,buthewasakind,gentleboyanddidnotfightback.
Confuciusdidnotplaywithotherchildren.Hewentofftotalktoholymen(
圣
4
人)inthetempleandlearnedfromthem.Hetalkedtoartistsand24.
(musician)andlearnedfromthem.Ifhetriedtodosomethingdifficult,hekepttryingoverandoveragain25. helearnedhowtodoit.Inthiswaytheboytaughthimselftoreadandwriteandlearnedlotsofinterestingthings.Confuciusgrewuptobeaverycleverman.
Whenhewasaman,Confuciusbecametherulerof26.
(lead).Heusedhisabilitiesandskills28.
cityofChangtu.Peoplewereveryhappy.Whenhewastheir27. awiseway.
Peoplesometimescallhimthe29. (great)manwhoeverlived.Westillremembermanyofhissayingstoday. Ⅳ.单词拼写
根据下列句子及所给的首字母,写出各单词的正确、完全形式。(每空限填一词) 30.Disneylandisenjoyedbymillionsofp aroundtheworld. 31.Therearenearlyfourh studentsinourschool.
32.IfyouwanttobecomeagoodMarathonathlete,youmustp runningeveryday. 33.Thebesttimetobrushyourteethisthreem aftermeals.
34.Ilovetakingnaps.Beingabletor inthemiddleofthedayisgreat! 35.MissYangisourEnglishteacher.Sheteachesu Englishverywell. 36.Don’tforgettoturnoffthelightswhenyoul theclassroom.
37.Healwaysasksustof therules.Hesaystheyareimportantforeveryone. 38.Tom,don’tf withyourclassmates.Youshouldbefriendlytothem. 39.NowyouknowMr.Yangisfriendlytous,butheisalsos withus. Ⅴ.书面表达
假如你是Linda, 请你对你的笔友Alice发来的e-mail进行回复,词数80左右。
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浙江省杭州市2024年中考英语一轮复习课时训练03Units1_4(七下)课件
