八年級(jí)英語第十二次周考

八年級(jí)英語第十二次周考

時(shí)間：120分鐘分值：120分

第一部分聽力(共四大題，滿分20分)

I.短對(duì)話理解(共5小題;每小題1分，滿分5分)

()1.WherewasVincewhentherainstormcame!

A.Intheclassroom.B.Athome.C.Atthebusstop.

()2.WhendidAndyTeadthebook?

A.Twomonthsago.B.Tenmonthsago.C.Oneyearago.

()3.WhatdoesKatethinkofRobert?

A.He'skind.B.Hetalkstoomuch.C.He'sfriendly.

()4.WhatisSarah*sfavoritemusic?

A.Countrymusic.B.Popmusic.C.Rockmusic.

()5.Wheredidtheboygolastweek?

A.Tothesciencemuseum.B.Tothehistorymuseum.C.Totheartmuseum.

n.長對(duì)話理解(共5小題;每小題1分，滿分5分)

聽下面一段對(duì)話，回答第6至7小題。

()6.WhatdoesJimmythinkofthecharactertheMonkeyKing?

A.Interesting.B.Crazy.C.Kind.

()7.HowmanytimeshasJimmyreadthebook?

A.Once.B.Twice.C.Threetimes.

聽下面一段對(duì)話，回答第8至10小題。

()8.Whenwilltheyardsalebe?

A.OnWednesday.B.OnFriday.C.OnSunday.

()9.WhogaveMarkthetoybear?

A.Hismother.B.Hisgrandfather.C.Hisgrandmother.

()10.HowoldisMark?

A.About6.B.About16.C.About18.

Ill短文理解(共5小題;每小題1分，滿分5分)

()11.WhatisSandy'stownlike?

A.It'ssmall.B.It'sbeautiful.C.It'sclean.

()12.HowmanyhospitalsarethereinSandy'stown?

A.Two.B.Three.C.Four.

()13.WhatfoodisfamousinSandy*stown?

A.Beef.B.Mutton.C.Chicken:

()14.WhereisSandy'shome?

A.Inthecenteroftown.B.Atthetopofthemountain.

C.Atthefootofthemountain.

()15.WhoclimbsthemountainwithSandyonweekends?

A.Herbrother.B.Hermother.C.Herfather.

IV.信息轉(zhuǎn)換(共5小題;每小題1分，滿分5分)

你將聽到一篇短文。請(qǐng)根據(jù)短文內(nèi)容寫出下

面表格中所缺的單詞，每空僅填一詞。短文讀兩遍。

LindaandTheLittlePrince

Lastweek,Linda(16)thebookfromherfriendSally.

Lindareaditoncebefore,butshe(17)rememberedthestory.

Lindaspent(18)hoursreadingthebookandshefeltexcited.

WhatLindaShelearnedthatsheshouldbekindand(19)

learned

whenfacingdifficulty,sheshouldbesmartandbrave.

Also,shelearnedsomuchaboutloveand(20)

第二部分英語知識(shí)運(yùn)用(共兩大題，滿分30分)

V.單項(xiàng)選擇(每題1分，共10分)

()21.--Weshouldbegoodtotheanimals.

—-.Theyarehuman'sfriends.

A.You'rewelcomeB.PmsorryC.SoundsinterestingD.You'reright

()22.Hefoundtheneighborhood.Fallentrees,brokenwindowsandrubbishwere

everywhere.

A.insilenceB.incontrolC.inamessD.intime

()23.Yoursonisonlya4-year-oldchild.Youshouldn'tgivehimsomuchofstudies.

A.riskB.hopeC.stressD.advice

()24.一Whydidtheythehouses?

一Becausetheywillbuildaparkthere.

A.takedownB.writedownC.cutdownD.turndown

()25.Now,manyplacesfreeWiFi,suchassubways,supermarketsandKFC.

A.takeB.showC.provideD.carry

()26.—CouldIwatchTVforawhile?

一Ofcourseyou.Butyoufinishyourhomeworkfirst.

A.could；mustB.can；must

C.could；wouldD.can；would

()27.一Didyougetwetyesterday?Itwasrainingsoheavily.

一No,itdidn'trainIgothome.

A.becauseB.assoonasC.untilD.after

()28.Couldyoupleasehelptheinformationaboutthepassengers?Iambusynow.

A.bringoutB.checkoutC.hangoutD.giveout

()29.一WhereisLucy?Ican'tfindhernow.

一SheShanghaionbusiness.Shebackinthreedays.

A.hasbeento;comesB.hasbeento;willcome

C.hasgoneto;comesD.hasgoneto;willcome

()30.一IheardFrankwouldjointhemusicclub.

-He'snotinterestedinmusicatall.

A.Whynot?B.Noproblem.C.You'rekidding!D.Ifsuptoyou.

VI.完形填空(每題1分，共20分)

A

Ididn'tleavemyhometownuntilIwassixteenyearsold.Myhometowncouldbringbacklotsof

sweet31tome.YesterdayIreturnedtomyhometown.!havebeenawayforthreeyears.So

manythingshavealready32

BeforeIleft,therewasasmallpond33myhouse,butnowpeoplehavefilledthispondand

havebuiltalargeshoppingmall.Thethingsinitaregoodandcheap,34therearemany

peoplethere.Therewasabaseballcourtoutsidethecityinthepast.Weusedtoplaybaseballthere,

35onweekends.Nowanewstand(看臺(tái))hasbeen36sothatmorepeoplecansitthereto

watchgames.ltlooks37thanbefore.

Thestreetinfrontofmyhouselooksjustasitalwaysdoes.Peoplehavebuiltapublic38in

thenextstreet.Everydayquiteafewpeoplereadbooksandmagazinesinit.Besidethetwostreets，

peoplehavebuiltabeautifulpark.Greentreesandfreshflowerscouldbeseen39.Itisreally

awonderfulplaceforpeopleto40.Ireallyhopeourhometownwillbecomemoreandmore

beautiful.

()31.A.voiceB.memoriesC.songsD.food

()32.A.changedB?stoppedC.lostD.forgotten

()33.A.throughB.overC.insideD.opposite

()34.A.orB.butC.soD.although

()35.A.easilyB.simplyC.carefullyD.especially

()36.A.addedB.repairedC.ledD.moved

()37.A.olderB.deeperC.betterD.worse

()38.A.bankB.libraryC.museumD.hospital

()39.A.somewhereB.nowhereC.anywhereD.everywhere

()40.A.fightB.relaxC.collectD.work

B

Haveyouevermadeyourfriendsangryorunhappybecauseofyourwords?Doyou

have41askingpeopletoreplytoyourrequests(要求)？Ifso,maybeyourEnglishisn'tpolite

(有禮貌的).Nowlefs42howtospeakinarightway!

Couldyougivemefiveminutes?VSGoaway!

You'rereallybusywithstudies,43yourclassmateneedsyourhelp.Thoughyou'retoo

busytodoanythingelse,youshouldn'tjustsay“Goaway!”Youcankeepeveryone

happy44saying“Couldyougivemefiveminutes?^^

Excuseme.VSMoveoutoftheway.

45someoneto"moveoutoftheway“isnotpolite.Saying“excuseme“willhelpyouget

the46youwantandtherewon,tbeanytrouble.

I'mafraidIcan't.VSNo.

Itcanoftenbe47torefuseaninvitationfromafriend.Peoplewillthinkitisnotpolite

to48say"no”.Thenexttimeyouhavetorefuseaninvitation,you'dbettersay,"I'mafraidI

can7?7.

Wouldyoumind...?VSStopit!

Aboyistalkingonthephoneloudlyinthe49.Wouldyoulikehimtostop?Ifsnotagood

ideatoshout“Stoptalkingonyourphoneinthecinema!?,You'dbettersay,“Wouldyoumindnot

using50phoneinthecinema,please?”

()41.A.troubleB.funC.adviceD.training

()42.A.sayB.forgetC.learnD.feel

()43.A.andB.butC.orD.so

()44.A.ofB.atC.toD.by

()45.A.ExpectingB.HearingC.TellingD.Paying

()46.A.resultB.giftC.pressureD.sign

()47.A.interestingB.strangeC.traditionalD.difficult

()48.A.stillB.justC.hardlyD.cinema

()50.A.yourB.hisC.herD.my

第三部分閱讀理解（共兩大題，滿分45分）

vn.補(bǔ)全對(duì)話(每小題i分，共5分)根據(jù)對(duì)話內(nèi)容，從方框內(nèi)的選項(xiàng)中選出能填入空白處

的最佳選項(xiàng)，其中有兩個(gè)為多余選項(xiàng)。

A:Canyoutellussomethingaboutyourself?

B:MynameisNadiaBurton.I'm22andI'mfromLondon.

A:(51)_______

B:I'velivedinLondonallmylife,butIhavetravelledtoalotofdifferentcountriesanddonea

lotofinterestingthings.

A:(52)_______

B:MyfavoritecountrywastheCzechRepublic.

A:(53)________

B:Iwenttherein2004andIlovedit.

A:（54）_______

B:I'matravelagent,sotravelismyjobandmyhobby.WhenI'mnottravelling,Iliketocook.I

lovetotryunusual（特別的）food.

A:Whatunusualfoodhaveyoutried?

B:Oh,I'vetriedmanyunusualthings.

A:（55）_______

B:Sure.Likestinkytofuandthousand-yearoldeggs.

A.Canyougivemesomeexamples?

B.Whydon'tyoueatmeat?

C.Whichcountrydidyoulikebest?

D.Whatcountrieshaveyouvisited?

E.Whatareyourhobbies?

F.HowlonghaveyoulivedinLondon?

G.Whendidyougothere?

VIII.閱讀理解（共20小題；每小題2分，滿分40分）

A

Monday12th

Windfromthesouthwest.

Wesailed（航彳亍）300km.Wetookthenets（網(wǎng)）inearlythismorningandtheywerealmostfull.

Allofuswereveryhappy.Ronsentamessagetohismother.Shehasbeenillrecently.Unluckily,

someofourfoodfellofftheboatanditwasimpossibletogetitback.

Tuesday13th

Windchanged-nowfromthenortheast.

Therainstartedatabout7:00a.m.Thewindbecamestrongersoon,andthenthestormcame.It

becamedifficulttocontroltheboat.Thecrew（全體船員）wereinsidetheboat.Thestormgot

reallystrongintheafternoon.Thecrewhadtocutthenetsbecausetherewasaseriousriskofthe

boatsinking（沉沒）.

Wednesday14th

Windfromthesouth.

Duringthenight,theboatmoved190kmnorthwestinthestorm.Thewindbecameweakinthe

afternoon.At5:00p.m.,webegantosailback.Thenwesawasmallboatnotfaraway.There

weretwopeopleinit,afatherandhisson.Theirboatwasbrokenbecauseofthestorm,andthey

didn'tknowwheretheywere.Wetookthemwithusandsailedback.Weboughtnewnetsand

morefood.Tomorrowwewillgowesttolookformorefish.

()56.WhatfellofftheboatonMonday?

A.Someclothes.B.Aradio.C.Somefood.D.Aflashlight.

()57.Thecrewcutthenetsbecause.

A.thenetsweregoingtobebroken

B.theboatwasgoingtosink

C.thenetswerebroken

D.theboatwassinking

()58.Whendidthecrewstarttogoback?

A.At7:00a.m.onTuesday.

B.At7:00p.m.onWednesday.C.At5:00a.m.onTuesday.

D.At5:00p.m.onWednesday.

()59.WhichofthefollowingisTRUEaccordingtothematerial?

A.ThestormbecamestrongonTuesdayafternoon.

B.Thewriterwasgoodatrepairingnets.

C.TherainstartedonMondaymorning.

D.Ron'sfatherwasinbadhealth.

()60.Youmayfindthematerialina.

A.dictionaryB.guidebookC.noticeD.diary

T

B

It'simportantforyoutosetgoals(目標(biāo)).However,youmayfeelithardtodo.Thefollowing

advicecanhelpyou.

?Haveastrongwishforyourgoal

Youshouldremember:thestartingpointofallsuccessisastrongwish.Strongwishesmake

goodresults.So,thefirststepinachievingagoalistohaveastrongwish.

?Pictureyourselfachievingagoal

Youcanchangeyourlifebychangingyourmind.Youshouldneverstopthinkingthatyoucan

achieveyourgoal.Forexample,youcandrawapictureofsomethingthatyouwantandputitup

onthewalLThenyoucanseeiteverydayanditseemsthatyouhavealreadygotit.Thiswill

encourageyoutomakeitcometrue.

?Makeaplantoachieveyourgoal

Makingaplantoachieveyourgoalisthemostimportantstep.Youshouldmakesurethatyou

thinkthrougheverythingintheplanfirst.Eachdayyoushouldfollowtheplansothatyoucan

achieveyourgoal.

?Checkyourprogress

AsyouaretryingtoachieveyourgoaLyouneedtocheckhowmuchprogressyouhavemade

andhowmanythingsyouhavemissed.Writethesethingsdownandfindouthowtodothem

better.

()61.Whatisthefirststeptoachieveagoal?

A.Drawingapicture.B.Studyinghard.

C.Havingastrongwish.D.Livinghappily.

()62.Whichofthefollowingisnotmentionedinthepassage?

A.Askforhelp.B.Changeyourmind.C.Makeaplan.D.Checkyourprogress.

()63.Whatcanwelearnfromthepassage?

A.Settinggoalsisthemostdifficultthingforsomepeople.

B.Youdon'thavetofolloweveryplanstepbystep.

C.Drawapictureofsomethingandthenyoucanhaveitatonce.

D.Youneedtocheckwhatyouhavemissedonthewaytoyourgoal.

()64.Whatisthebesttitleforthispassage?

A.TheReasonsofSettingGoalsB.TheTimeofSettingGoals

C..TheWaysofAchievingGoalsD.TheImportanceofAchievingGoals

C

Hip-hopdancing(街舞)ispopularwithmanyyoungpeopletoday.Theylikeitbecausetheycan

inventtheirownmoves.Theyusethisdancetoshowtheirloveforlife.Italsoshowsthattheyfeel

goodaboutlife,thattheyjustwanttobethemselvesandenjoylife,andthattheyarenotafraidof

problems.

Hip-hopdancinghasahistoryofmorethan20years.Itfirstbeganinthe1980sintheUS.In

earlytimes,itwasseeninNewYorkandLosAngeles.Atthattime,manyyoungblackpeopleoften

dancedtothemusicinthestreet.Theyusedtheirlegs,arms,headsandevenshoulderstodance.

Manyyoungpeoplestillusemostofthesemovestoday.

Hip-hopdancingbecamepopularallovertheworldbecauseofthe1983movieFlash-dance.

SomepeopleperformedHip-hopdancinginthemovie.Peopleenjoyedtheirperformance.They

begantodancelikethem.Thenitbecamepopular.TherearetwokindsofHip-hopdancing:new

schoolandoldschool.MoreandmoreyoungpeoplearelearningHip-hopdancing.Peoplebelieve

thatitisagoodwaytoexercisetheirbodies,andthatitisgoodfortheirhealth.

()65.YoungpeoplelikeHip-hopdancingbecause.

A.ithasahistoryofmorethan20years

B.itfirstbeganintheUS

C.theycaninventtheirownmoves

D.manyyoungblackpeopleoftendanceit

()66.Atfirst,Hip-hopdancingwasseen.

A.inthemoviesB.inthestreets

C.inoldschoolsD.innewschools

()67.Theyoungblackpeopleusedtheirtodanceatthattime.

A.legsB.heads

C.armsandshouldersD.alloftheabove

()68.WhichofthefollowingistrueaboutHip-hopdancing?

A.It'snotagoodwaytoexercise.

B.Itshowsthatyoungpeoplefeelbadaboutlife.

C.Youngpeopleusethisdancetoshowtheirloveforlife.

D.Itshowsthatyoungpeopleareafraidofproblems.

D

TheweatherwassofineinthemorninglastSaturday.SomybestfriendandIdecidedtoride

bikestothenearestparktohaveapicnic(里予餐).Weboughtsomefoodandenjoyithappily.But

afterafewhours,itwaswindyandbecomingdarkandlookedreadytodropaheavyrain.Wewere

readytogo.Myfriend,whowassittingonthebench,suddenlyfeltbadandcouldn'ttalktome.

Shewasabouttoloseconsciousness(意識(shí)).Iheldherinmyarmsandaskedifshewantedtorest.

Shedidn*tanswerandonlysaid“Sorry…"ItstartedtorainandIdidn'tknowwhattodo.Suddenly,

astrangewomanonabicycleappeared,wearingaraincoat.atShedoesn'tlookgood.Doyouwant

metocallpoliceandanambulance(救護(hù)車)？”“Yes,please!”Ireplied.Thenshecalledsome

policemen,whoquicklyhelpedmetocarrymyfriendtoasaferplace.Theambulancearrived,and

wewenttoahospital.Thenextday,shefeltwellagainafterthemedicaltreatment.LaterIasked

thepoliceofficerswhothewomanwas,butnobodyknew.Shedidn*tleaveanyinformationabout

herselfandleft.Iamsothankfulthatsheappearedattherightmoment.Ididn'tevengetthe

chancetosay"Thankyou”.Thekindnesscametome,andIwillreturnittomorepeopleinmy

dailylife.

()69.Howdidthewriterandherfriendgoonapicnic?

A.Bybus.B.Bycar.C.Bybike.D.Bysubway.

()70.Whocalledthepoliceandambulance?

A.Thewriterherself.B.Thewriter'sfriend.

C.Astrangewoman.D.Thefriendlyneighbor.

()71.Wecanlearnfromthepassagethat.

A.thewriterandherfriendhadapicnicinthemountain

B.thewomanleftnothingafterhelpingthem

C.thewriterknewherfriendhadabadillness

D.thewriterknewthewomanwell.

（）72.Whatwouldbethebesttitleforthepassage?

A.BelieveinyourselfB.Helpingothersishelpingourselves

C.AnexperienceofhelpingothersD.Akindacthappenedtome.

E

Agroupoffrogs（青蛙）weretravellingthroughthewoods,andtwoofthemfellintoadeep

pond（池塘）.Whentheotherfogssawhowdeepthepondwas,theytoldthetwofrogstogiveup.

Thetwofrogsdidn'tlistentothemandtriedtojumpupoutofit.

Finally,oneofthefrogslistenedtotheotherfrogs9wordsandgaveup.Hefelldownanddied.

Theotherfrogwentonjumpingashardashecould.

Onceagain,thecrowdoffrogsshoutedathimtogiveupandwaitfordeath.

Hejumpedevenharderandfinallymadeitout.Whenhegotout,theotherfrogssaid,

“Didn'tyouhearus??

Totheirsurprise,thefrogexplainedtothemthathewasdeaf.Hethoughttheywere

encouraginghimthewholetime.

Wordshavethepoweroflifeanddeath.Encouragingwordscanliftsomeoneupandhelp

himmakeitthroughdifficulties,butbadwordscanhurtpeople.

73.Whatdidtheotherfrogstoldthetwofrogswhentheyfellintothepond?（不超過10個(gè)詞）

74.Whydidoneofthefrogsfalldownanddie?（不超過15個(gè)詞）

75.Whatcanwelearnfromthepassage?（不超過10個(gè)詞）

第四部分寫（滿分25分）

IX.單詞拼寫（每題1分，共5分）

根據(jù)首字母及漢語提示，完成下列單詞拼寫。

76.Katedidn'tthinkherfriendwastellingthet（實(shí)情）abouttheevent.

77.1tookani（興趣）inpaintingwhenIwasfiveyearsold.

78.Theoldmanoftenfeels1（寂寞的）becausehischildrenlivefaraway.

79.mmissmyfamilywhenIgoa（國外）forfurtherstudy.

80.1'moldenoughtolookaftermyself,andIwon'td（依賴）onmyparents.

X.書面表達(dá)（共1小題；滿分20分）

作為一名亳州人，我們要向全國各地的游客展現(xiàn)亳州景美人文明，故你校擬定開展“如

何做文明的中學(xué)生”演講比賽。請(qǐng)你根據(jù)活動(dòng)主題并結(jié)合表格中所給的信息,用英語寫一篇

演講稿，談?wù)勅绾巫鲆粋€(gè)文明的中學(xué)生。

地點(diǎn)內(nèi)容

在學(xué)校努力學(xué)習(xí)，尊敬老師，與同學(xué)友好相處;空余時(shí)間多讀書……

在家里關(guān)心父母，多做家務(wù)活，節(jié)約用水.……

在公共場(chǎng)合不大聲喧嘩，排隊(duì)等候，不亂扔垃圾……

要求：1.文章必須包含所有信息，并作適當(dāng)發(fā)揮，以使行文連貫；

2.字?jǐn)?shù)在80-100字左右（開頭結(jié)尾已給出，不計(jì)入總詞數(shù)）。

參考詞匯：文明的civilized尊敬respect

Howtobecivilizedstudents

Helloeveryone,

Bozhouisabeautifulcitywithalonghistory.AsstudentsinBozhou,weshouldshowthe

beautifulviewsandthecivilizationtoallthevisitors.Hereismyadvice.

Thafsall!Thankyouforyourlistening!

小數(shù)除法

教材簡介：

本單元的主要內(nèi)容有：小數(shù)除以整數(shù)、一個(gè)數(shù)除以小數(shù)、商的近似值、循環(huán)

小數(shù)、用計(jì)算器探索規(guī)律、解決問題。

教學(xué)目標(biāo)

1、使學(xué)生掌握小數(shù)除法的計(jì)算方法。

2、使學(xué)生會(huì)用“四舍五入”法，結(jié)合實(shí)際情況用“進(jìn)一”法和“去尾”法取商

的近似數(shù)，初步認(rèn)識(shí)循環(huán)小數(shù)、有限小數(shù)和無限小數(shù)。

3、使學(xué)生能借助計(jì)算器探索計(jì)算規(guī)律，能應(yīng)用探索出的規(guī)律進(jìn)行小數(shù)乘除法的

計(jì)算。

4、使學(xué)生體會(huì)解決有關(guān)小數(shù)除法的簡單實(shí)際問題，體會(huì)小數(shù)除法的應(yīng)用價(jià)值。

教學(xué)建議：

1.抓住新舊知識(shí)的連接點(diǎn)，為小數(shù)除法的學(xué)習(xí)架設(shè)認(rèn)知橋梁。

2.聯(lián)系數(shù)的含義進(jìn)行算理指導(dǎo)，幫助學(xué)生掌握小數(shù)除法的計(jì)算方法。

課時(shí)安排：

本單元可安排11課時(shí)進(jìn)行教學(xué)。

第一課時(shí)小數(shù)除以整數(shù)（一）

——商大于1

教學(xué)內(nèi)容：P16例1、做一做，P19練習(xí)三第1、2題。

教學(xué)目的：

1、掌握比較容易的除數(shù)是整數(shù)的小數(shù)除法的計(jì)算方法，會(huì)用這種方法計(jì)算相應(yīng)

的小數(shù)除法。

2、培養(yǎng)學(xué)生的類推能力、發(fā)散思維能力、分析能力和抽象概括能力。

3、體驗(yàn)所學(xué)知識(shí)與現(xiàn)實(shí)生活的聯(lián)系，能應(yīng)用所學(xué)知識(shí)解決生活中的簡單問題，

從中獲得價(jià)值體驗(yàn)。

教學(xué)重點(diǎn)：理解并掌握小數(shù)除以整數(shù)的計(jì)算方法。

教學(xué)難點(diǎn)：理解商的小數(shù)點(diǎn)要與被除數(shù)的小數(shù)點(diǎn)對(duì)齊的道理。

教學(xué)過程：

一、復(fù)習(xí)準(zhǔn)備：

計(jì)算下面各題并說一說整數(shù)除法的計(jì)算方法.

2244-4=4164-32=13804-15=

二、導(dǎo)入新課：

情景圖引入新課：同學(xué)們你們喜歡鍛煉嗎？經(jīng)常鍛煉對(duì)我們的身體有益，請(qǐng)看王

鵬就堅(jiān)持每天晨跑，請(qǐng)你根據(jù)圖上信息提出一個(gè)數(shù)學(xué)問題？

出示例1：王鵬堅(jiān)持晨練。他計(jì)劃4周跑步22.4千米，平均每周應(yīng)跑多少千米？

教師：求平均每周應(yīng)跑多少千米，怎樣列式？（22.4+4）

觀察這道算式和前面學(xué)習(xí)的除法相比有什么不同？

板書課題：“小數(shù)除以整數(shù)”。

三.教學(xué)新課：

教師：想一想，被除數(shù)是小數(shù)該怎么除呢？小組討論。分組交流討論情況：

（1）生：22.4千米=22400米22400+4=5600米5600米=5.6千米

（2）還可以列豎式計(jì)算。

教師：請(qǐng)同學(xué)們?cè)囍秘Q式計(jì)算。計(jì)算完后，交流自己計(jì)算的方法。

教師：請(qǐng)學(xué)生將自己計(jì)算的豎式在視頻展示臺(tái)上展示出來，具體說說你是怎樣算

的？

追問：24表示什么？

商的小數(shù)點(diǎn)位置與被除數(shù)小數(shù)點(diǎn)的位置有什么關(guān)系？

引導(dǎo)學(xué)生理解后回答“因?yàn)樵诔ㄋ闶嚼?，除到被除?shù)的哪一位，商就寫在哪一

位上面，也就是說，被除數(shù)和商的相同數(shù)位是對(duì)齊了的，只有把小數(shù)點(diǎn)對(duì)齊了，

相同數(shù)位才對(duì)齊了，所以商的小數(shù)點(diǎn)要對(duì)著被除數(shù)的小數(shù)點(diǎn)對(duì)齊”.

問：和前面準(zhǔn)備題中的224除以4相比,224除以4和它有哪些相同的地方?有哪

些不同的地方？

怎樣計(jì)算小數(shù)除以整數(shù)？（按整數(shù)除法的方法除，計(jì)算時(shí)商的小數(shù)點(diǎn)要和

被除數(shù)的小數(shù)點(diǎn)對(duì)齊）

教師：同學(xué)們贊同這種說法嗎？（贊同）老師也贊同他的分析.

教師：大家會(huì)用這種方法計(jì)算嗎？（會(huì)）請(qǐng)同學(xué)們用這種方法算一算.

四、鞏固練習(xí)

完成“做一做”：25.2+634.54-15

五、課堂作業(yè)：練習(xí)三的第1、2題

課后反思：

學(xué)生們?cè)谇耙惶斓念A(yù)習(xí)后共提出四個(gè)問題：

1,被除數(shù)是小數(shù)的除法怎樣計(jì)算？（熊佳豪）

2,為什么在計(jì)算時(shí)先要擴(kuò)大，最后又要將結(jié)果縮??？（鄭揚(yáng)）

3,小數(shù)除以