重庆市巴南区石龙初级中学八年级英语《Unit 4 Our World》 学案无答案 仁爱版.docx

重庆市巴南区石龙初级中学八年级英语《Unit 4 Our World》 学案无答案 仁爱版.docx

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重庆市巴南区石龙初级中学八年级英语《Unit4OurWorld》学案无答案仁爱版

重庆市巴南区石龙初级中学八年级英语《Unit4OurWorld》学案仁爱版

Topic1wesharetheworldwithplantsandanimals

一.重点词语

1.share…with与……共享

2.playwith玩弄，玩耍

3.indanger在危险之中

4.feedon以……为食

5.thinkabout考虑，思考

6.enjoynature享受自然

7.atnight晚上

8.inthedaytime白天

9.summervacation暑假

10.thousandsof成千上万

11.infact事实上

12.findout查明，发现

13.innature在自然界

二.重点句型

１.Ｐlantsaremorebeautifulthananimals.　植物比动物更漂亮。

２.Theplantsstaygreenlongerthere.　那儿的植物能更长时间保持绿色。

３.Therainforestsareveryimportanttous.　（热带）雨林对我们很重要。

４.Waterisnecessaryforallplants.Itisthemostimportantthingtoalllivingthings,wemustsaveeverydropofwater.　水对所有植物是必需的。

它对所有生物都重要，我们必须节约每一滴水。

５.Isn’titinteresting？

　是不是很有趣呀？

６.Itisoneofthemostdangerousfishintheworld.　它是世界上最危险的鱼之一。

７.Itissostrange！

　太奇怪了！

三.语法学习

（一.）形容词的比较级和最高级的构成

1.规则变化：

（1.）一般在词尾加—er或—est.如：

fresh—fresher—freshest.

（2.）以字母e结尾的形容词，加r或st,如：

late—later—latest.

（3.）以重读闭音节结尾的词，词尾只有一个辅音字母时，应双写这一辅音字母，再加er或est.如：

big—bigger—biggest.

（4.）以辅音字母＋y结尾的双音节词，先改y为i，再加er或est.如：

happy—happier—happiest.

（5.）部分双音节词和多音节词前面加more或most构成比较级或最高级。

如：

careful—morecareful—mostcareful,beautiful—morebeautiful—mostbeautiful.

２.不规则变化：

good/well—better—best,little—less—least,many/much—more—most,bad/ill—worse—worst,far—farther/further—farthest/furthest.

（二.）形容词的比较级和最高级的用法

1.比较级Ａ＜Ｂ或Ａ＞Ｂ，经常与than搭配，或给出比较的二个内容。

可用much和alittle修饰．

2.三者或三者以上比较用最高级，一般给出比较范围．如：

of（in）＋…。

（1）例句：

①I’mhappierthanyou.　我比你更快乐。

②Plantsaremuchmorebeautifulthananimals.　植物比动物漂亮的多。

（２）例句：

①Theboyisthetallestinmyclass.　这个男孩是我们班最高的。

②LessonTwoisthemostimportantofall.　第二课是所有中最重要的。

四.交际用语：

学习如何用英语描述和谈论我们生存的自然环境

Doyoulikeplantsoranimals?

Whatareyouthinkingabout?

Whydoyouthinkso?

Whatkindofwildanimalisthemostdangerous,thetiger,thesnakeorthebear?

Whymustwesaveeverydropofwater?

五．课堂练习

（一）

Ⅰ.单项选择

（）1.Allanimalsneed_______water.

A.littleB.manyC.lotofD.plentyof

（）2.—YouarestandingtooneartotheTV.Canyoumoveabit_______?

—OK,Mom.Isitallrighthere?

A.fasterB.slowerC.fartherD.nearer

（）3.—Didyouhavebreakfastthismorning?

—No,Igotuplateandwenttoschool_______breakfast.

A.forB.inC.withoutD.after

（）4.Yourclassroomissodirty.Everyoneshouldkeepit_______.

A.dryB.openC.quietD.clean

（）5.Therewere_______animalsintheforestmanyyearsago.

A.thousandofB.thousandsof

C.threethousandofD.threethousandsof

（）6.—Wow,yourschoolisgreat!

—Itis_______schoolinthecity.

A.muchmorebeautifulB.muchbeautiful

C.themostbeautifulD.beautiful

（）7.Bluewhalesarethelargestandheaviestanimalsintheworld,butthey_______thesmallestseaanimals.

A.feedinB.liveinC.feedonD.fedon

（）8.—ZhouFang,canyoufinishyourhomeworkbetterwith_______time?

—IthinkIcan.

A.fewB.fewerC.littleD.less

（）9.Asweknow,waterisveryimportant_______us.

A.ofB.toC.onD.with

（）10.Look!

Thereisarabbit,two_______andtwo_______inthepicture.

A.cows;sheepsB.mice;tigerC.gooses;snakesD.foxes;wolves

Ⅱ.情景交际

选择方框中的句子完成对话。

Mike:

Hi,Jim,whatareyoutalkingabout?

Jim：

Oh,wearetalkingaboutsomethingintheforest.

Mike:

11

Jim:

Ipreferplants.

Mike:

12

Jim:

Becausetheyareverybeautiful.Ithink,Ilikebamboobest.13

Mike:

Ilikeanimalsbetterthanplants.Ithinkanimalsareveryinterestingandwecanplaywiththem.

Jim:

14

Mike:

Ilikepandasbest.Theyareverylovely.

Jim:

15

Mike:

Soundsgreat!

Let’sgothisSunday.

Jim:

OK.Wecanseemanykindsofplantsandanimalsthere.It’ssointeresting!

Mike:

Seeyou!

Jim:

SeeyouthisSunday!

A.Whichkindofanimaldoyoulikebest?

B.Whichdoyouprefer,plantsoranimals?

C.Why?

D.WhynotgototheForestPark?

E.Whataboutyou?

Ⅲ.完形填空

Manyanimalsusesomekindof“language”.Theyusesignals（信号）andthesignalshavemeanings.Forexample,whenabee（蜜蜂）hasfoundsomefood,itgoes16home.Itis17

forabeetotell18beeswherethefoodisbyspeakingto19,butitcandoalittledancing.Thistellsthebeeswherethefoodisand20itis.

Someanimalsshowhowtheyfeelbymakingsounds.Itisnotdifficultto21.Ifadogisangry,itbarks（吠）.Birdsmakeseveraldifferentsoundsand22hasitsownmeaning.Sometimeswehumansmakesounds23.Wemakesoundslike“Oh!

”or“Ouch!

”toshowhowwefeelaboutsomethingorwhenwe24somethingonourfeet.

Wehumanshavelanguages.Wehavewords.Thesewordshavethemeaningofthings，actions（行动）,feelingsorideas.We25giveeachotherinformation.Writingdownwords，wecanrememberwhathashappenedorsendmessagestopeoplefaraway.

（）16.A.outofB.onwithC.awayfromD.back

（）17.A.importantB.difficultC.necessaryD.impossible

（）18.A.eachotherB.anotherC.otherD.others

（）19.A.itB.himC.themD.themselves

（）20.A.howlongB.howfarC.howmanyD.howold

（）21.A.watchB.seeC.lookD.tell

（）22.A.eachB.everyC.allD.some

（）23.A.inthesamesoundB.bydifferentsounds

C.inthesamewayD.bydifferentways

（）24.A.putB.dropC.fallD.set

（）25.A.couldB.areabletoC.couldn’tD.beableto

Ⅳ.阅读理解

（A）

Plantsareveryimportant.Thisisbecauseplantscanmakefoodfromair,waterandsunlight.Animalsandmancannotmakefoodfromair,waterandsunlight.Animalscangettheirfoodbyeatingplantsandotheranimals.Mangetshisfoodbyeatingplantsandanimals,too.Soanimalsandmanneedplantsinordertolive.Thisiswhytherearesomanyplantsaroundus.

Therearetwokindsofplants:

floweringplantsandnon-floweringplants.Almostallthetreesaroundusarefloweringplants.Youcanknowsometreesfromtheirflowersandfruit.Non-floweringplantsdonotgrowflowers.Youcannotseemanynon-floweringplantsaroundyou.

Ifyoulookcarefullyattheplantsaroundyou,youwillfindthattherearemanykindsofplants.Someplantsarelargeandsomearesmall.Mostofthemaregreen.Thankstotheplantsarounduswecanliveonearth.

（）26.Weneedmanyplantsaroundusbecause_______.

A.plantscangroweasily

B.plantsaregreen

C.wecangetwhatweneedfromplants

D.welikeallkindsofplants

（）27.Therearesomanyplantsaroundusbecause_______.

A.mandoesn’tneedanyplants

B.mostanimalsdon’teatplants

C.manandanimalsneedplantstolive

D.theearthwillbecomemorebeautiful

（）28.Thereare_______non-floweringplantsthanfloweringplantsaroundus.

A.muchfewerB.muchmoreC.muchlargerD.muchbetter

（）29.WhichofthefollowingdoesNOTcomefromaplant?

A.Basket.B.Bread.C.Cabbage.D.Stoneforest.

（）30.Whichisthebesttitle（题目）ofthispassage?

A.PlantsaroundusB.ManandAnimals

C.LiveonEarthD.FoodandPlants

（B）

Doyouknowwhydifferentanimalsorpests（害虫）havetheirspecialcolors？

Colorsonthemseemtobeusedmainly（主要地）toprotectthemselves.

Somebirdslikeeatinglocusts（蝗虫）,butbirdscannotcatchthemeasily.Why?

Becauselocustschangetheircolorsaccordingtothecolorsofcrops（庄稼）.Whencropsaregreen,locustslookgreen.Butastheharvesttimecomes,locustschangetothesamebrowncolorascropshave.Someotherpestswithdifferentcolorsfromplantsareeasilyfoundandeatenbyothers,sotheyhavetohide（隐藏）themselvesandappear（出现）onlyatnight.

Ifyoustudyanimallife,you’llfindthemainuseofcoloringistoprotectthemselves.Bears,lionsandotheranimalsmovequietlythroughforests.Theycannotbeeasilyseenbyhunters（猎人）.Thisisbecausetheyhavecolorsmuchlikethetrees.

Akindoffishintheseacansendoutakindofveryblackliquid（液体）whenitfacesdanger.Whiletheliquidspreadsout,itsenemies（敌人）cannotfindit,soitcanescape（逃跑）atonce.Soitcanlivelong,thoughitisnotstrongatall.

（）31.Fromthepassagewelearnthatlocusts_______.

A.aresmallanimalsB.areeasilyfoundbybirds

C.aredangeroustotheirenemiesD.changetheircolorstoprotectthemselves

（）32.Howcanpestswithdifferentcolorsfromplantskeepoutofdanger?

A.Theyrunawayquickly.

B.Theyhavethecolorsmuchliketheirenemies.

C.Theyhidethemselvesbydayandappearatnight.

D.Theyhavetomovequietly.

（）33.Bearsandlionscankeepsafebecause_______.

A.theyhavethecolorsmuchlikethetrees

B.theymovequietly

C.theylikebrownandgreycolors

D.theyliveinforests

（）34.Whycanthekindoffishlivelong?

A.Becauseitisverybigandstrong.

B.Becauseitcansendoutakindofveryblackliquidtohelpitescapefromitsenemies.

C.Becauseitcansendoutakindofliquidtokillitsenemies.

D.Becauseitswimsfasterthananyotherfish.

（）35.Whichisthebesttitle（标题）ofthispassage?

A.TheChangeofColorsforAnimalsandPests.

B.ColorsofDifferentPests.

C.TheMainUseofColorsforAnimalsandPests.

D.SomeAnimalsandPests.

（C）

Tomhasthemostbeautifulgardeninourtown.Manypeopletakepartin“TheNicestGardenCompetition”eachyear,andTomwinseverytime.Mike’sgardenislargerthanTom’s.MikeworksharderthanTomandgrowsmoreflowersandvegetables,butTom’sgardenismoreinteresting.Hehasmadecleanpaths（小径）andbuiltawoodenbridge（桥）overapool.Ilikegardens,too,butIdonotlikehardwork.Everyyear,Itakepartinthegardencompetition,too,andIalwayswinalittleprize（奖励）fortheworstgardeninourtown.

根据短文内容，填写下列表格。

Garden

Niceornot

Why

Tom’s

The36._______

Thereare37._______paths

andawoodenbridge.

Mike’s

38._______thanTom’s

HeworksharderthanTom.

Thereare39.___________.

Thewriter’s

the40._______

Idislikehardwork.

（二）

Ⅰ.词汇

（A）根据句意及首字母提示补全单词。

1.Peoplecanenjoyn_______i