上海版牛津初中英语8A Cha

8AChapter4精选ppt

全部,全体,整体n.____________一生n._____________________相反,对(指比赛中)prep._______

下列的；接着的adj.___________女士,夫人,小姐n._____________令人惊奇的adj._______________解决,解答vt.________________

上面的,上述的,上文的adj._____错误n._____________________

弄错v._____________________活着的adj.__________________敲打;击败v._________________理由,原因n.________________

错误地

adv._________________wholelifetimeagainstsurprising

掌握词语followingsolveabovemistakemistakealivebeatreasonwronglylady精选ppt零n.______________加v.

______________加上prep.______________某数除某数；某数除以某数v._________

划分v.______________度；度数n._______________计算；估算v.______________大脑n._______________(常用作复数）时代；时期n.__________

数,计算

v.________________系统,体系n._______________发明；创造v._______________发展；发育；成长v.________________发明；创造n._______________强大的，作用大的adj._______________zeroaddplusdividedividedegreecalculatebraintimecountsysteminventdevelopinventionpowerful精选ppt小数n.________________量角器n.________________量；测量v.________________角度n.________________奇数的，单数的adj.____________圆规n.________________分数n.

________________减；减去；减掉v._______________乘；使相乘

v.________________百分数,百分率,百分比n.__________偶数n.

________________相等的adj.________________相等的事物(或数量)n.____________等于,比得上vt._________________认知词汇decimalprotractormeasureangleoddcompassesfractionsubtractmultiplypercentageevenequalequalequal精选ppt特别；尤其adv._____________希腊人,希腊语n._____________罗马人n._____________埃及人n._____________用于计算的adj._____________算盘n._____________准确的adj._____________有孔的珠子n._____________金属丝,电线,电缆n.__________表示；表现；相当于vt.________电子的adj._____________平方根______________数量n.

___________________认知词汇especiallyGreekRomanEgyptiancalculatingabacusaccuratebeadwirerepresentelectronicsquarerootsamount精选ppttimewholeladyreasonzerodegree

brainsystem

inventionlifetimemistakedecimalfractionn.thetimes时代Thetimesaredifferentthe（或形容词性物主代词）whole+单数名词the/hiswholefamily;thewholeclass;reasonable合理的adj.forthesereasonsinventv.inventionn.inventorn.Thegreatinventor

inventedmanyinventions精选pptwireamountprotractoranglecompassespercentage

abacusbead

RomanGreekEgyptian

n.RomansRomen.罗马Greeks(复数）Greecen.希腊EgyptiansEgyptn.埃及Abaci/abacuses复数amountvi.amountsto…总计达…精选pptverbadddividecalculatedevelopsolvemistake

beatmeasure

multiplySubtractequalrepresentaddupto总计bedividedinto…被分成…developmentn.developingadj.developedadj.lessdevelopedmistake…for…把…和…混淆measurementn.takemeasurements

进行测量takemeasurestoimprove…采取措施去改善…beatsb.winamatchlosetosb.精选pptpowerfulabovealivefollowingamazingoddcalculating

accurateelectronicequaladj.powern.Heisstillalive.alive不能做定语,只能做表语Heis_______

atthe_______sceneryinthemountainareainFrance.electricityn.amazedamazing精选pptPrep.minusagainstplus

wronglyespecially

adv.beagainst反对leanagainst…斜靠在…playagainst与…打比赛Fourminustwois______.Fiveplustwois_____.wrong错误的twoseven精选pptPhrases(Page48)inourdailylife在我们的日常生活中aninternationallanguage一门国际语言adecimalnumber小数drawcircles画圆apairofevennumbers一组偶数onthenextpage在下一页longago很久以前anespeciallyimportantnumber一个特别重要的数字calculatebetterthanacomputer比电脑计算得好animportantpartofyourbody身体重要的一部分differentwaysofdoingsth做某事不同的方法measureangles测量角度Therearedifferentwaysofwritingthisword.Theprotractorisusedformeasuringangles.精选pptphrases(page49)1.atleast至少2.hisownlanguage他自己的语言3.ancientnumber古老的数字4.inancienttimes在古代5.inmanydifferentways用不同的方法6.inthesameway用相同的方法7.intens用十进制8.thesystemofnumbers数字体系9.consistof由…组成10.numbersfrom1to9从1到9的11.fromthebiggesttothesmallest从最大到12.makeiteasierforsbtodo对某人来说做某事变得更容易Itrequiresatleasttwodays.

Wecansolvethisprobleminmanydifferentways.Waterconsistsofhydrogenandoxygen.Wahshingmachinesmakeiteasierforpeopletowashtheirclothes.精选pptPage491.oneofthefirst…最…之一2.sofastandaccuratethat如此地快和准确以致于3.thebeadsonthewires算盘杆上的算盘珠4.startfromthebottomwire从底部的算盘杆开始5.thepictureontheright右边的图片6.amodernelectroniccalculator一个现代的电子计算器7.calculatepercentagesandsquareroots计算百分比和平方根8.inaflash在刹那间9.doacalculation进行计算10.inone’swholelifetime用某人一生的时间Shanghaiisoneofthelargestcities

intheworld.Hewas

soexcitedthat

hecouldn’tspeak.精选ppt(Page49)callthebrainalivingcomputer把人脑叫做电脑……amorepowerfulcalculatorthan一个比…更强大的计算器giveananswer给出一个答案aladyfromIndiawithanamazingbrain一名来自印度有着惊人大脑的女士calculatelikelightning像闪电一样计算solveaproblem解决一个问题begivenaproblemtosolve被给一个问题来解决tookfiftysecondstofind…做某事花…时间begindoing开始做某事haveto不得不programmesthwithinstructions用…来编程序use...todo用…来做某事theproblemsabove以上的问题powerfulenough足够强大onpage59在59页Ittookhimtwohourstofinishhishomeworklastnight.He______twohours_______hishomeworklastnight.spentin

finishingLilyhastotellthetruth,__________?doesn’tsheThebookis_______________formetoread.easyenough精选pptMorephrasesgiveareasonforyouranswer就答案给出理由startwith以…开始payattentionto…注意bequiet安静haveaseat坐下beafraid恐怕makeanoise吵闹belatefor=comelateto迟到AmultipliedbyBisCAdividedbyBisCAtotalof15总数为15Wemustpayattentiontoyourteacherinclass.beafraidofbeafraidtodobeafraidthat..Hehandledthetesttubewithcare,becausehewas___________breakingit.afraidof3___________7is21.3乘以7等于21。multipliedby15___________3is5.15除以3等于5。dividedby精选ppt60cardinalnumbers基数词WhatcanIdoforyou?copydown…wronglychecksthwithsb.agiftof35,000fellowstudentsdrawalinegraphNotatallrisesto…fallsto…44%ofourclassmatesinthesameyeartheaverageage/height/weight/temperature…What’sthepopulationofChina?CanIhelpyou?IsthereanythingIcandoforyou?Thelinegraphshowsthenumber______________1005in2003risesto图中表示在2006年数字再次下降到907。Thelinegraphshowsthenumber_________________907in2006.

fallsagain

to精选ppt练习：一用下列词语的适当形式完成句子

consistofstandforinventthezero docalculationsbetterthanfrom…to…adecimalnumberso…thatcomefromknowabout1.Hewalked_________fast_______Icouldn’tcatchupwithhim.2.Indiansthen_____________________.3.Thecommittee_____________________tennumbers.4.Wegotoschool______Monday______Friday.5.Whatdoes‘T.G.’_____________________in‘T.G.Smith’?6.Averypowerfulmachinesfor_____________________.7.Whatdoyou_____________________thecomputers?8.Heis_____________________meatswimming.9.0.88is_____________________.10.Japanese_____________________Japan.sothatinventedthezeroconsistsoffromtostandfordoingcalculationsknowaboutbetterthan

adecimalnumbercomesfrom精选ppt

综合阅读：Numbers：Everyone’slanguageHowmanylanguagesdoyouknow?Everyoneknowsatleasttwohisorher(A)_____languageandtheinternationallanguageofnumbers.AncientnumbersInancienttimes,peoplewrotenumbersinmanydifferentways,asthesepicturesofthenumber6show.However,theynearlyallcounted(B)_____________intens.ZeroThesystemofnumbersthatnearly（C）everyoneusestodayconsistsofthenumbers

from1to9and0.Withthesetennumbers,wecanwriteanynumberfromthebiggesttothesmallest.TheIndiansfirstinventedanddevelopedthe1to9systemofnumbers.Theytheninventedthezero.Thiswasaveryimportantinventionbecauseitmadeiteasiertowritebignumbersandtocalculate.CalculatingmachinesOneofthefirstcalculatingmachineswasanabacus.（D）Abacusesaresofastandaccuratethatpeoplestillusethemtoday.Ontheabacusinthepicture,thebeadsonthewiresrepresentones,tens,hundredsandthousands,startingfromthebottomwire.Thepictureontherightshowsamodernelectroniccalculator.Itcanadd,subtract,multiplyanddivide.Itcanalsocalculatepercentagesandsquareroots.Thepictureshowsacomputer.Computersareverypowerfulcalculatingmachines.(E)Inaflashacomputercandoacalculationthatyoucouldnotdoinyourwholelifetime.（H）______________________________________精选pptSomepeoplecallthebrainalivingcomputer.Isahumanbrainamorepowerfulcalculatorthanacomputer?Thefollowingstorymaygiveananswer.ShakuntalaDeviisaladyfromIndiawithanamazingbrain.Shecancalculatelikelightning.InAmerica,Shakuntalaandaverypowerfulcomputerweregiventhisproblemto(F)findananswerto.Shakuntala’sbrain（G）用50秒找到了答案.Thecomputertookaminute.However,beforethecomputercouldbegincalculating,someonehadtoprogramitwithinstructions,andthattookmanyhours.NoonehadtoprogramShakuntala!Useyourownlivingcomputertosolvetheproblemabove.Ifitisnotpowerfulenough,youwillfindtheansweronpage59.1.在A处填入一个适当的单词:___________________2.在B处填入一个适当的短语:__________________3.将C处改写成Thesystemofnumbersthatnearlyeveryoneusestoday____________________ofthenumbersfrom1to9and0.4.将D处句子改写为：Abacusesarefastandaccurate_______________people________usethemtoday.5.将E处翻译成汉语：______________6.根据F的释义写一个单词：______________7.将G翻译成英语：_______________8.将H处的小标题写上：________________________9.Fromthearticle,canyouguess“itisn’tamachine,andit’salive.”Whatdoesitreferto?A__________________10.Whyistheinventionof“0”important?ownInthesamewayismadeupenoughforto一闪念solvetookfiftysecondstofindtheanswerBrainagainstcomputerhumanbrainBecauseitmadeiteasiertowritebignumbersandtocalculate精选ppt语法专练(A)请将方框中各类数字的不同英语表达填写在下面的表格里。种类数字英语表达百分数72%1．温度35°C2．基数词113．序数词12th4．小数36.165．分数4/56．年代19877．电话号码274581168．日期12/99．时间6:5510．其它232路汽车11．345号房间12．seventy-twopercentthirty-fiveCelsiuseleventwelfththirtysixpointonesixfour-fifthsnineteeneighty-seventwosevenfourfiveeightdoubleonesixDecembertheninth;theninthofDecembersi