2024人教版八年级英语上册Unit 4 课时1 Section A（1a-1d）大单元分层作业

Unit4AmazingPlantsandAnimals

课时1SectionA(la—Id)分层作业

9作业导航

核心知识速记

01基础达标03拓展培优

02能力提升04思维进阶

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;核心知识速记

:词汇

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mass/majs/n.质量redwood/kedwud/n.红杉；红木cheetah/n.猎豹

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一Wk〃'samazingaboiu[heblue“力Ee?蓝鲸令人惊叹之处何在？

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-----h'sthelarwesUb位口eslanimaliniheworld.它是世界上最大的动物。

01基础达标

一、单词默写

I./m<es/n.苔碎3./'tfi：to/n.猎豹

2./'redwud/n.红杉：纥木

二、词组默写

I.使某物……样的5.同意某人

2.开始测试6.最古老的植物之一

3.一起带……去7.继续

4.跑得最快8.有一天

三、按要求完成句子

I.蓝鲸是世界上最大的动物。

Thebluewhaleistheintheworld.

2.猎豹跑得最快。

Thecheetah(he—.

3.苔辞是世界上最古老的植物之一。

Mossisoneoftheintheworld.

4.红杉树是世界上最高的树。

Theredwoodtreeistheintheworld.

5.我希望有一天能看到一些红杉树。

Iseesomeredwoodtreessomeday.

能力提升

四、用括号内所给词的适当形式填空

I.Therearemany(amaze)factsaboutnumbers.

2.JinshaParadiseWalkisoneof(large)shoppingcentersinourcity.

3.ForMa,classicalpoetryisthe(beautiful)languageintheworld.

4.Whois(heavy)ofthetenyoungmen?

5.Thewintersolstice(冬至)is(short)dayoftheyear.

五、阅读短文，从方框中选择适当的词或短语并用其正确的形式填空（每词限用一次）。

cheetah,fast,oneday.beautiful,oneof,appear,million

Thebluewhaleisthelargestanimalintheworld.Itisalsotheheaviestanimalonearth,weighingmorethan

150tons.The1.runsthe2.amonglandanimals,reachingspeedsofupto120kilometersper

hour.Manypeoplethinkitisthe3.animalintheworldwithitssleekbodyandspottedcoat.Mossis

4.theoldestplantsintheworld.It5.oneartharound4706.yearsago,muchearlier

(hanmanyotherplants.Theredwoodtreeisthetallesttreeintheworld,somegrowingover100metershigh.I

hopeIcanseesome7.whenItraveltoCalifornia.

拓展培优

六、阅读理解。

Rafflesiaarnoldii

PeoplediscoveredthisflowerinSumatrain1818,anditisconsideredtobethelargestflowerintheworld.Itcan

growuptoonemetreindiameter(直径)，andweighasmuchas25pounds.ThoughRafflesiaarnoldiiisalarge

flower,itisverydifficulttofind.Ittakes9to21monthsfortheplanttodevelop,butitsflowerlastsforonlyfive

days.Theflowercanreachupto20feet(alland16feetwide,butitsmellsawful.Thedancingplant

Haveyoueverwatchedaplantmoveallbyitself?Thedancingplant,alsoknownasthetelegraphplant,

actuallymovesitsleaves.Itcangrowupto2metreshigh.Theperiodofitsmovementsisfrom3to5minutes,and

whenalloftheleavesmove,itcreatesaverycooleffect.TheplantlivesinAsiaandcanalsobefoundintheSouth

Pacific.Itisprettywonderful.ThisplantisfamousforbeingafavouriteofCharlesDarwin,andi(isimportantin

hisbookThePowerofMovementinPlants.

1.HowdoesRafflesiaarnoldiismell?

A.Fresh.B.Sweet.C.Terrible.D.Wonderful.

2.Howhighcan(hedancingplantgrowupto?

A.Onemeter.B.Twometers.C.Sixteenfeet.D.Twentyfeet.

3.Inwhichunitcanwefindthistext?

A.Unit1ExcitingSports.B.Unit2AmazingNature.

C.Unit3ColourfulCultures.D.Unit4InterestingActivities.

七、阅读还原。

Camelsareamazinganimals.Theyaren'tthemostbeautifulanimalsintheworld.Buttheyarecertainlythe

mostusefulanimalsinhotareassuchasNorthAfricaandtheMiddleEast.Theyusuallyhelppeoplecarrythings.

4____

DoyouknowthatArabiancamelsarcnotthesameasAsiancamels?Ifyoutakeacloselookatthem,you

willfindthatArabiancamelsaredromedaries.Thatistosayyoucanonlyfindonehump(驼峰)onitsback.But

AsiancamelsareBactrians—theyhavetwohumps.5Isn'tthatinteresting?

Anadultcamelisabout2meterstallandtheweightofeachisabout500kilograms.6Andits

feetarebigandsoft.

3

Mostofthecamelscanliveforabout40years,butusuallytheydon'thavetoworkwhentheyareabout25.

Camelsmainlyeatgrass,leavesandbushes.Theycanwalkformorethan600kilometerseveniftheyarenot

givenwater.7Butwhenthereiswater,theycandrinkasmuchas90liters.Camelswalkslowly.They

don'tlikerunningbecauseit'stoohot.Butiftheyneed,theycanrunat20kilometersanhour.

So,nexttime,whenyoutravelinadesert,ifamansays,“Look,herecomesaship.Doyouwanttotakea

ride?"8

A.Itslegsarclong.

B.Canyouunderstandwhatthe“ship"is?

C.NowTdliketotellyousomethingaboutthem.

D.Theylooksimilartoeachother.

E.Theyarethetwomainkindsintheworld.

F.Theyonlyneedtodrinkwatereverysevendays.

G.Theydon'tneedtodrinkwateratall.

八、完形填空。

Asweknow,rainforestsarethelungsoftheearth.They9about2%oftheearth'ssurface.Halfof

（heanimalsonEarthliveinrainforests.Thesloth（树懒）isoneofthem.

Theslothlives10thetreeover30metersfromtheground.ItisthemostinterestinganimalI

know.Itlookslikeapandaoramonkey.Italwaysmovesveryslowly,Hwhenitisindanger.Butyou

can,timagine（想像）itisgoodatswimming.Whenitisinthe12itcanswimlikeabigfish.

Manypeople（hinki（isakindof13animal.Why?Theslothneeds（o1415to20

hourssleepinginthetreeinthedaytime.Yes,itdoes15butsleepingduringthedaytime.Maybethat's

the16whypeoplethinkit'slazy.Whendoesiteatmeals?Ofcourseatnight.It17leavesof

thetrees.Iteatsnothingelse.18itcan'tlivewithoutforests.

Theslothisakindofrare（珍稀）animal.Ifvvecan'tprotectitwell,itwilldieoutoneday.

9.A.provideB.shareC.cover

10.A.inB.onC.with

11.A.evenB.stillc.also

12.A.forestB.riverc.land

13.A.cleanB.stupidc.lazy

14.A.costB.spendc.take

4

15.A.somethingB.anythingC.nothing

16.A.reasonB.introductionC.advice

17.A.feedsonB.cleansupC.playswith

18.A.ButB.SoC.And

［思维进阶

_______________________)

九、任务型阅读。

Fromaseed（种子）thatissmallerthanapeagrowsthetallestoftrees.Thecoastredwoodisthelargestgiant

amongNorthAmerica'strees.

redwoods

Redwoodsarcmostspecialfortworeasons.Thefirstistheirsize.Imaginestandingnexttoatreethatisthe

heightofa30-storybuilding.Thesecondistheirage.Redwoodscommonlymakeitto600yearsorso.Ithasbeen

found（hatsometreesaremorethan2000yearsold.

Tofindacoastredwood,youhavetogotoOregonorCalifornia.Acoastlineabout450mileslongandupto

35mileswideishometotheredwoods.Coastredwoodsdon'tgrowanywhereelseintheworld,becausethecoast

of（hePacificOceanprovidesaspecialenvironmentfbrtheredwoods.Cool,moist（湿润的）aircomesoffthe

oceanandkeepsthetreesmoistailyearround,whichisimportantbecausealmostallofthearea'srainfalls

betweenOctoberandMay.Duringthedrysummermonths,thetreesdependonmoisturefromthethickfogthat

oftenhangsoverthecoast.

Redwoodshave（heirownprotectionsystems.Mostofredwoods'branchesandleavesarehighuponthetree.

Thiskeepsthemsafefromforestfires.Also,thebark（树皮）ofaredwoodisasmuchas12inchesthick.Thethick

coveringprotectsthelowerpartofthetreefromfiredamage.Besides,redwoodsaresafefrominsectdamage（虫害）

becausethewoodcontainsabiller-tasting（苦味的）chemicalcalledtannin.

5

Ifyouevergetachance,visitaredwoodforest,andimaginewhomightcampthereathousandyearsago.

Lookupwardandjustimaginehowhighthetreesmightgrowifweprotectthem.

19.WhatisthelargestgiantamongNorthAmerica'strees?

20.Whatareredwoodsmostspecialfor?

21.Wherecanyoufindacoastredwood?

22.Whatkeepsthetreesmoistallyearround?

23.Whataretheredwoods'protectionsystems?

参考答案与试题解析

Unit4AmazingPlantsandAnimals

课时1SectionA(la-ld)分层作业

。作业导航

核心知识速记

01基础达标03拓展培优

02能力提升04思维进阶

vowvrorrvowwevr*evow-wrvr*rwavwrx-ve*

ft

核心知识速记

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:词汇

I

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imass/mass/n.质量redwood/lredw(Kl/n.红杉；红木cheetah//n.猎豹

;句型

一刊amazingaboulihebheewhale?蓝鲸令人惊叹之处何在？

k

■一〃'sihelaraest/biRRestanimalintheworld.它是世界上最大的动物。

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K_______________________________________________________________________________

tg基础定标"

6

二、单词默写

4.—_____/mies/n.苔薛6.________/'tfi：to/n.猎豹

5.—_____/'redwud/n.红杉；纥木

【答案】moss;redwood;cheetah

二、词组默写

9._____一使某物……样的13.________一同意某人

10._________开始测试14.________一最古老的植物之一

11._________一起带....去15.________一继续

12._________跑得最快16._________有一天

【答案】1.makesth.adj.2.startatest3.take...together...4.runfastest5.agreewith6.oneoftheoldestplants

7.goon8.oneday

三、按要求完成句子

1.蓝鲸是世界上最大的动物.

Thebluewhaleisthein(heworld.

6.猎豹跑得最快。

Thecheetahthe.

7.苔辞是世界上最占老的植物之一。

Mossisoneoftheintheworld.

8.红杉树是世界上最高的树。

Theredwoodtreeistheintheworld.

9.我希望有一天能看到一些红杉树。

Iseesomeredwoodtreessomeday.

［答案】1.largestanimal2.runs;fastest3.oldestplants4.tallesttree5.hopeto

02能力提升

四、用括号内所给词的适当形式填空

1.Therearemany(amaze)factsaboutnumbers.

2.JinshaParadiseWalkisoneof(large)shoppingcentersinourcity.

3.ForMa,classicalpoetryisthe(beautiful)languageintheworld.

4.Whois(heavy)ofthetenyoungmen?

7

5.Thewintersolstice（冬至）is（short）dayoftheyear.

【答案】1.amazing2.thelargest3.mostbeautiful4.（heheaviest5.theshorlest

五、阅读短文，从方框中选择适当的词或短语并用其正确的形式填空（每词限用一次）。

cheetah,fast,oneday,beautiful,oneof,appear,million

Thebluewhaleisthelargestanimalintheworld.Itisalsotheheaviestanimalonearth,weighingmorethan150tons.

TheI.runsthe2.amonglandanimals,reachingspeedsofupto120kilometersperhour.Manypeople

thinkitisthe3.animalintheworldwithitssleekbodyandspottedcoal.Mossis4.theoldestplantsin

theworld.It5.oneartharound4706.yearsago,muchearlierthanmanyotherplants.Theredwoodtree

isthetallesttreeintheworld,somegrowingover100metershigh.IhopeIcanseesome7.whenItravelto

California.

【答案】cheetah;fastest;mostbeautiful;oneof;appeared:million;oneday

03

六、阅读理解。

Rafflesiaarnoldii

PeoplediscoveredthisflowerinSumatrain1818,anditisconsideredtobethelargestflowerintheworld.Itcangrowup

toonemetreindiameter（直径），andweighasmuchas25pounds.ThoughRafflesiaarnoldiiisalargeflower,itisvery

difficulttofind.Itlakes9to21monthsfortheplanttodevelop,butitsflowerlastsforonlyfivedays.Theflowercanreach

upto20feettalland16feetwide,butitsmellsawful.Thedancingplant

Haveyoueverwatchedaplantmoveallbyitself?Thedancingplant,alsoknownasthetelegraphplant,actually

movesitsleaves.Itcangrowupto2metreshigh.Theperiodofitsmovementsisfrom3to5minutes,andwhenallofthe

leavesmove,itcreatesaverycooleffect.TheplantlivesinAsiaandcanalsobefoundintheSouthPacific.Itispretty

wonderful.ThisplantisfamousforbeingafavouriteofCharlesDarwin,anditisiniporiantinhisbookThePowerof

MovementinPlants.

8

1.HowdocsRafflesiaarnoldiismell?

A.Fresh.B.Sweet.C.Terrible.D.Wonderful.

2.Howhighcanthedancinaplantgrowupto?

A.Onemeter.B.Twometers.C.Sixteenfeet.D.Twentyfeet.

3.Inwhichunitcanwefindthistext?

A.Unit1ExcitingSports.B.Unit2AmazingNature.

C.Unit3ColourfulCultures.D.Unit4InterestingActivities.

【答案】1.C2.B3.B

【导语】本文介绍了两种植物一大王花和跳舞草。

1.细常理解题。根据“Theflowercanreachupto20feettalland16feetwide,butitsmellsawfUl.“可知，它气味难闻。

故选C.

2.细节理解题。根据“Itcangrowupto2metreshigh.“可知，它可以长到2米高。故选B。

3.推理判断题。本文介绍了两种植物，我们可以在第二单元“神奇的大自然”中找到这篇文章。故选

七、阅读还原。

Camelsarcamazinganimals.Theyaren'tthemostbeautifulanimalsintheworld.Buttheyarccertainlythemost

usefulanimalsinhotareassuchasNorth.AfricaandtheMiddleEast.Theyusuallyhelppeoplecarrythings.4

DoyouknowthatArabiancamelsareno(thesameasAsiancamels?Ifyoutakeacloselookat(hem,youwillfind

thatArabiancamelsarcdromedaries.Thatistosayyoucanonlyfindonehump(驼峰)onitsback.ButAsiancamelsarc

Bactrians一theyhavetwohumps.5Isn'tthatinteresting?

Anadultcamelisabout2meterstallandtheweightofeachisabcut500kilograms.6Anditsfeetarebig

andsoft.

Mostofthecamelscanlivefbrabout40years,butusuallytheydon'thavetoworkwhentheyarcabout25.

Camelsmainlyeatgrass,leavesandbushes.Theycanwalkformore(han600kilometerseveniftheyarenotgiven

water.7Butwhenthereiswater,theycandrinkasmuchas90liters.Camelswalkslowly.Theydon'tlike

runningbecauseit'stoohot.Butiftheyneed,(heycanrunat20kilometersanhour.

So,nexttime,whenyoutravelinadesert,ifamansays,“Look,herecomesaship.Doyouwanttotakearide?^^

8

9

A.Itslegsarclong.

B.Canyouunderstandwhatthe“ship”is?

C.NowI'dliketotellyousomethingaboutthem.

D.Theylooksimilartoeachother.

E.Theyarethetwomainkindsintheworld.

F.Theyonlyneedtodrinkwatereverysevendays.

G.Theydon,tneedtodrinkwateratall.

【答案】4.C5.E6.A7.F8.B

【导语】本文介绍了骆鸵耐旱，善载物，是沙漠地区重要的交通工具。

4.根据“DoyouknowthatArabiancamelsarenotthesameasAsiancamels?”可知，此处引出对骆驼的介绍，C选项“现

在我想告诉你一些关于它们的事情。”符合，故选C。

5.根据"Thatistosayyoucanonlyfindonehump（驼峰）onitsback.ButAsiancamelsareBactrians—theyhavetwo

hunips.”可知，这里介绍了两种骆驼，E选项“它们是世界上最主要的两种。”符合，故选E。

6.根据“Anditsfeetarebigandsoft.”可知，此处介绍“骆驼”的样子,A选项“它的腿很长。”符合，故选A。

7.根据“Butwhenthereiswater,theycandrinkasmuchas90liters.”可知，此处与“喝水”有关，F选项“他们只需要每

七天喝一次水。''符合，故选F。

8.根据“herecomesaship”可知，此处与“ship”有关，B选项“你能理解，船，是什么吗？”符合，故选B。

八、完形填空。

Aswcknow,rainforestsarcthelungsoftheearth.They9about2%oftheearth'ssurface.Halfofthe

animalsonEarthliveinrainforests.Thesloth（树懒）isoneofthem.

Theslothlives10thetreeover30metersfromtheground.1（isthemostinterestinganimalIknow.It

lookslikeapandaoramonkey.Italwaysmovesveryslowly,11whenitisindanger.Butyoucan'timagine（想

像）itisgoodatswimming.Whenitisinthe12itcanswimlikeabigfish.

Manypeoplethinkitisakindof13animal.Why?Theslothneedsto1415to20hours

sleepinginthetreeinthedaytime.Yes,itdoes15butsleepingduringthedaytime.Maybethat'sthe16

whypeoplethinkit'slazy.Whendocsitcatmeals?Ofcourseatnight.It17leavesofthetrees.Iteatsnothing

else.18itcan'tlivewithoutforests.

Theslothisakindofrare（珍稀）animal.Ifwccan'tprotectitwell,itwilldieoutoneday.

9.A.provideB.shareC.cover

10.A.inB.onC.with

11.A.evenB.stillC.also

10

12.A.forestB.riverC.land

13.A.cleanB.stupidC.lazy

14.A.costB.spendC.take

15.A.somethingB.anythingC.nothing

16.A.reasonB.introductionC.advice

17.A.feedsonB.cleansupC.playswith

18.A.ButB.SoC.And

【答案】

9.C10.AII.A12.B13.C14.B15.C16.A17.A18.B

【导语】本文是一篇说明文，介绍了热带雨林中一种独特的动物一树懒。

9.句意：众所周知，雨林是地球之肺，覆盖了地球表面的2%。

provide提供：share分享；cover覆盖,根据上文"Asweknow,rainforestsarethelungsoftheearth”及常识可知，热带

雨林覆盖了地球表面的2%。故选C。

10.句意：树懒生活在离地面30多米高的树上。

in在...里；on在....上;with和。根据下文“thetreeover30metersfromtheground”提示，此处说的是树懒生活在

树上。inthe〔ree意为“在树上”，指外界的事物在树上，而非树木自身生长；onthetree意为“在树上”，指树自身所

有，长在树上的东西。故选A。

II.句意：它总是移动得很慢，即使处于危险之中也不例外。

even甚至、即使；slill仍然；also也。根据上文“Italwaysmovesveryslowly''可知，树獭总是慢慢地移动，即使遇到

了危险，也不会有所改变。故选A。

12.句意：当树懒在河里的时候，它可以像一条大鱼一样游泳。

forest森林；river河流；land陆地。根据上文“Butyoucan'timagine（想像）itisgoodatswimming”可知,树懒擅长游

泳，在河里可以像一条大鱼一样游泳。故选B。

13.句意：许多人认为树懒是一种懒梢的动物。

clean干净的;stupid愚蠢的;lazy懒惰的。根据下文“Theslothneedsto...15to20hourssleepinginthetreeinthedaytime”

可知，树懒白天长时间地睡觉，会让人觉得它们很懒。故选C。

14.句意：树懒白天需要在树上睡15到20个小时。

cost表示某物花费多少钱，主语为物；spend指花费时间和金钱，只能用人作主语；take花费，其固定搭配为Ittakes/

tooksb.sometimetodosth.o句子主语为“sloth”，故应用动词spend,故选B。

15.句意：是的，它白天除了睡觉什么也不做。

something某些事物；anything任何事物；nothing没有什么。根据上文“Theslothneedstospend15to20hourssleeping

11

inthetreeinthedaytime”可知,树懒白天需要在树卜睡15到20个小时,所以白天除了睡觉什么也不做了4,故选C。

16.句意：也许这就是为什么人们认为它很懒惰的原因。

reason原因;introduction介绍；advice建议。根据上文“Theslothneedstospend15to20hourssleepinginthetreeinthe

daytime.Yes,ildoesnothingbutsleepingduringthedaylime”可知，树懒白天需要在树I：睡15到20个小时，所以白天

除了睡觉什么也不做了，这就是人们认为它很懒惰的原因。故选A。

17.句意：它以树叶为食。

feedson以...为食;cleansup清理；playswith和....玩。根据下文"Iteatsnothingelse”可知,树懒只以树叶为食。

故选A,

18.句意：所以它离不开森林。

Bui但是；S。所以；And和。根据上文“Iteatsnothingelse”可知，树懒只以树叶为食，所以它离不开森林。故选B。

04

十、任务型阅读。

Fromaseed（种子）thatissmallerthanapeagrows（hetallestoftrees.Thecoastredwoodisthelargestgiantamong

NorthAmerica'strees.

Redwoodsaremostspecialfortworeasons.Thefirstistheirsize.Imaginestandingnexttoatreethatistheheightof

a30-stcrybuilding.Thesecondistheirage.Redwoodscommonlymakeitto600yearsorso.Ithasbeenfoundthatsome

treesaremorethan2000yearsold.

Tofindacoastredwood,youhavetogotoOregonorCal