Unit+4++Topic+3+Section+C 仁愛科普版九年級(jí)英語(yǔ)上冊(cè)

Unit4AmazingScienceTopic3SectionC1.Somewords:doubt,tiny,inside,brain,cancel,connect2.Somephrases:nodoubt,forinstance3.Somesentences:(1)Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness(2)Computershelpusatworkandathome,buttheymustbeusedproperly.LearningGoalsNewwordsandexpressionsentertainmentn.娛樂(lè)；招待doubt n.&v.懷疑，疑惑nodoubt

無(wú)疑地tiny adj.極小的，微小的insideprep.在……內(nèi)；在……里

adv.

在里面normally adv.通常，正常情況下brain n.腦；智力；腦力cancel v.取消，撤銷；廢止workplace n.工作場(chǎng)所connect v.連接；把……聯(lián)系起來(lái)forinstance

例如besides adv.而且，再說(shuō) prep.除……之外(還)properly adv.正確地，恰當(dāng)?shù)谻omputerswereinventedintheUSAinthe1950s,nowtheyhavebecomeveryimportantinmanyareasofworkandleisure.education businessindustry communicationdailylife medicalcareentertainment sports√√√√√√√√1a1.Tickthefieldsweusethecomputerin.Whatcanthecomputersusefor?2.Canyougiveanexampleoftheuseofthecomputerinoneofthefieldsabove?Forexample,tinycomputerswhichareinsidepatients'bodiescankeeptheirheartsbeatingnormally.Doctorscanfinddiseaseseasily

withthehelpofcomputers.ReadParagraph1,andfillinthechart.PlaceTheusageofcomputersInspaceInhospitalsInfactoriesInbusiness

controlthespeedanddirectionfinddiseaseseasilyandsolveotherproblemsdodangerousworkusedtoplaceandcancelordersReadParagraph2,andanswerthequestions.1.Havepeople’slivesathomebeenchangedsincetheInternetcameintobeing?2.Whatdopeopleusetheirpersonalcomputersfor?

3.TheInternetismakingtheworldsmaller,isn’tit?

Yes,theyhave.Peoplecanusetheircomputerstoplaygames,watchmovies,doshopping,dobusiness,sende-mailsandchat.Yes,itis.1.Whatisthepassageabout?TheImportanceofComputersWhile-readingGuessingTip:在通讀全文的基礎(chǔ)上概括。Matchthetopicsentence

ofeachparagraph!

Para.1

B.SincecomputerswereinventedintheUSAinthe1950s,theyhavebecomeveryimportantinmanyareasofworkandleisure.C.SincetheInternetcameintobeing,people’slivesathomehavebeenchanged,too.Para.2Skimming略讀Para.3A.Computershaveimprovedourlives,buttheyhavebroughtproblems,too.

Thetopicsentenceisusuallyinthebeginningorattheendofaparagraph.Carefulreading

SincecomputerswereinventedintheUSAinthe1950s,theyhavebecomeveryimportantinmanyareasofworkandleisure.Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.since+一般過(guò)去時(shí)態(tài)的句子/過(guò)去的時(shí)間點(diǎn)/一段時(shí)間+ago，用于現(xiàn)在完成時(shí)態(tài)之中，且這個(gè)現(xiàn)在完成時(shí)態(tài)的句子中的謂語(yǔ)動(dòng)詞要用延續(xù)性動(dòng)詞。eg.Hehaslivedheresince1999.HehasbeenawayfromChongqingsince10yearsago.1.Thereisnodoubtthatcomputersareveryusefulintechnologyandbusiness.毫無(wú)疑問(wèn)電腦在技術(shù)和貿(mào)易業(yè)都非常有用。

考點(diǎn)：

there’snodoubt+that從句

“毫無(wú)疑問(wèn)”eg.There’snodoubtthathe’sanhonestman.

(1)doubt(n.)(2)doubt(vt.)+從句(3)doubt(vi.)+about/of

Thereisnodoubtthatwewillbesuccessful.Doubt

isthekeytoknowledge.doubt/da?t/

n./v.懷疑，疑惑Idon'tdoubtthattheywillbeabletosolvetheproblems.

Idoubtwhether/ifhe'llchangehismind.eg.Thereisnoreasontodoubtofhishonesty.CarefulreadingInspace,computershavebeenusedtocontrolthespeedanddirectionofaspaceship.Withthehelpofcomputers,doctorscanfinddiseaseseasilyandsolveotherproblems.Forexample,tinycomputers

whichareinsidepatients’bodiescan

keeptheirhearts

beating

normally.tiny

verysmallinsize

adj.極小的，微小的2.

Inspace,computershavebeenusedtocontrolthespeedanddirectionofaspaceship.

在太空，電腦已經(jīng)被使用來(lái)控制宇宙飛船的速度及方向。

考點(diǎn)：

現(xiàn)在完成時(shí)態(tài)結(jié)構(gòu)：主語(yǔ)+have/has+done+其他；現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)：主語(yǔ)+have/hasbeen+done+其他。eg.Wehaveplantedmanytreesonthemountain.=Manytreeshavebeenplantedonthemountainbyus.及時(shí)練習(xí)：（將下列句子改為被動(dòng)語(yǔ)態(tài)）1.Scinetistshavelaunchedspaceshipstoexploretheouterspace.Spaceships________________toexploretheouterspace.2.Wehaveplantedmanytreessofar.Manytrees________________byussofar.havebeenlaunchedhavebeenplanted3.

Forexample,tinycomputerswhichareinsidepatients’bodiescan

keeptheirheartsbeatingnormally.

舉個(gè)例子，病人體內(nèi)所安放的微型電腦能讓他們的心臟正常跳動(dòng)。

考點(diǎn)：

（1）此句是由which引導(dǎo)的定語(yǔ)從句，來(lái)修飾computers，類似的句子還有：Infactories,robotsarecontrolledbycomputersthatarelikehumanbrains./Theycandoworkthatisdangeroustohumans.

（2）keepdoingsth.

“一直做某事”

keepsb.doingsth.

“讓某人一直做某事”

eg.Don’tkeephimwatingsolong.

（3）keep+adj./keepsb./sth.+adj.

eg.keephappy/quiet;keepyourhandsclean1.Iamsorrytokeepyou_____solong.

A.waitingB.towaitC.towaitingD.wait2.Thenewshopkeeps_____for24hoursaday.

A.openingB.toopeningC.openD.toopen3.He_____theroombyhisbossforalongtime.

A.iskeptcleaningB.keepcleaningC.iskepttocleanD.keptclean4.Wemustalwayskeepourclassroom_____.

A.cleaningB.tocleanC.cleanD.cleansA及時(shí)練習(xí)：CACCarefulreadingInfactories,robotsarecontrolledbycomputersthatarelikehumanbrains.Theycandoworkthatisdangeroustohumans.Inbusiness,computersareusedtoplaceandcancelorders.Theyarealsomakingtheworkplacesaferandbetter.定語(yǔ)從句下訂單和取消訂單4.Inbusiness,computersareusedtoplaceandcancelorders.在商業(yè)上，電腦被用來(lái)下訂單和取消訂單

place:熟義:n.地點(diǎn)，場(chǎng)所；

生義

：v.放置，安頓；下單；

n.地位；（速度比賽或競(jìng)賽獲勝者的）名次

1：Mr.Smithplacedajadestone(玉石)intheyoungman'shandandtoldhimtoholdit(2012河南完型；外延)_____

2：Toeveryone'ssurprise,thepoorlydressedZhangtookthefirstplaceintheexam.(2018撫順完型)_____

3.Thankstomyparents,Iwasfirstplacedinaspecialschool.(2017衢州詞匯運(yùn)用)_____

放置名次安頓CarefulreadingSincetheInternetcameintobeing,people’slivesathomehavebeenchanged,too.Moreandmorepeoplehavepersonalcomputersthatareusedtoplaygamesandwatchmovies.ThankstotheInternet,peoplecandoshoppinganddobusinessathome.Insteadofwritinglettersonpaper,peoplecommunicatebysendinge-mailsandchattingonline.Thewholeworldisconnected.TheInternetismakingtheworldsmaller,likeavillage.connect

v.

連接

connection

n.

關(guān)系，聯(lián)系1.

connectAwithB

使A與B連接2.

connectsth.(tosth.)

使電、氣、水等接通

3.connectsb./sth.(withsb./sth.)與……有聯(lián)系，把……聯(lián)系起來(lái)4.

Insteadofwritinglettersonpaper,peoplecommunicatebysendinge-mailsandchattingonline.

（1）instead

表示前面的事沒做，反而做了后面的事。

eg.Hedidn’tgotobed.Instead,hewatchedTVforalongtime.

（2）insteadofsth./doingsth.“沒有/代替做某事”。eg.HewatchedTVforalongtimeinsteadofgoingtobed.instead單獨(dú)使用，可放于句尾，如果放于句中應(yīng)該用逗號(hào)隔開。而insteadof通常放于句中，后面要加名詞，代詞，或者動(dòng)名詞。及時(shí)練習(xí)：（將下列句子改為同義句）1.Hedidn’tanswermyquestion.Instead,heakedsomequestions.He_____mesomequestions_________________myquestion.2.HewenttoJapanonvacationinsteadofgoingtoEngland.He_________toEngland.________,hewenttoJapan.askedinsteadofanweringdidn’tgoInsteadCarefulreadingComputershaveimprovedourlives,buttheyhavebroughtproblems,too.Forinstance,ifweworkoncomputerstoolong,wemaygetheadachesorsoreeyes.Ifweplaycomputergamestoomuch,wewon’thaveenoughtimetostudyorexercise.Besides,noteverythingwereadontheInternetistrueorgoodforus.Computershelpusatworkandathome,buttheymustbeusedproperly.forinstance=forexample

“例如”用來(lái)舉例說(shuō)明某一論點(diǎn)或情況，一般只舉同類人或物中的“一個(gè)”為例。suchas用來(lái)列舉事物時(shí)，一般列舉同類人或事物中的幾個(gè)例子。eg.（1）Forinstance(Forexample),Japanhasalotofearthquakes.（2）Ilikefruits,suchasapples,pearsandbananas.

定語(yǔ)從句

5.

Besides,noteverythingwereadontheInternetistrueorgoodforus.

此外，并不是所有我們?cè)诰W(wǎng)上讀到的信息都是真實(shí)或?qū)ξ覀冇幸娴摹?/p>

（1）辨析：besides,except與beside①besides

意為“（包括......在內(nèi)）除此之外”。

②except意為“除了（不包括......在內(nèi)）”。

③beside

意為“在......旁邊”，相當(dāng)于nextto

和near。

（2）noteverything意為“不是每件事”。這是一個(gè)表示“部分否定”的句子。完全否定為NothingwereadontheInternetistrueorgoodforus.或NoneofthethingswereadontheInternetistrueorgoodforus.

選用besides,beside,except填空。1.Weallwenttothezoo________Tom.Hewasill.2.EmilycanalsospeakFrenchandJapanese________English.3.Marycameupandsat________me.exceptbesidesbeside

(1)besides與except用于肯定句時(shí)，except意為“除……之外（不再有）”；besides意為“除……之外（還有）”。

如：Ihaveanotherbluepenbesidesthisone.除了這支外，我還有另一支藍(lán)色鋼筆。（1+1，共2支）

WeallpassedtheexamexceptTom.我們都通過(guò)了考試，湯姆除外。（整體中……湯姆一人不及格）(2)except前幾乎總有all、any、every、no及其復(fù)合詞等詞。如：Heansweredallthequestionsexceptthelastone.

除了最后一個(gè)問(wèn)題沒答外，其余問(wèn)題他都答了。(3)except后接名詞、代詞、動(dòng)名詞和動(dòng)詞原形，這時(shí)except=but；

但except后跟副詞、介詞短語(yǔ)時(shí)，不能用but代替。如：Thewindowisneveropenexceptinsummer.這扇窗戶從來(lái)不開，除夏季外。

Hedidnothingexcept/butcleanthehouse.他只是打掃了房子。

1.Howmanyusagesofthecomputerarethereintechnologyandbusiness?()A.SevenB.FourC.FiveD.Three

2.Whatdoestheword“place”meaninParagraph1?()A.地方B.住處C.放置D.下訂單Scanning細(xì)讀/精讀

3.Whatcanthecomputersdoindailylife?()A.Playgamesandwatchmovies.B.DoshoppinganddobusinessathomeC.Sende-mailsandchatonlineD.Alltheabove.BDD4.whatdoesParagraphThreemainlytalkabout?A.Theusageofcomputer.1(3).pptxB.Theadvantage(優(yōu)勢(shì))ofcomputer.C.Theproblemofcomputer.D.Theusageofcomputerindailylife.Ccomputersusageproblemworkdailylife_________________________ofaspaceship.helpdoctors___________________._______________infactories.helpbusinessmen_____________________.playgamesand_______________.____________and___________athome.____________bysendinge-mailsand__________________.getheadachesor___________.don’thaveenoughtime________________.somethingonInternetisnot____________.controlthespeedanddirectionfinddiseaseseasilycontroltherobotsplaceandcancelorderswatchmoviesdoshoppingdobusinesscommunicatechattingonlinesoreeyestostudyorexercisetrueorgood2.Completethefollowingdiagram.

TheImportanceofComputersTrytofindthestructure(結(jié)構(gòu))

ofthepassagewhenreading.

usageproblemPara.1Para.2Para.3Amindmap(思維導(dǎo)圖):workdailylifeTheimportanceofComputers

開頭Withthedevelopmentofscienceandsociety,Computershavebecomemoreandmoreimportanttous.結(jié)尾Inaword,thewatersupportingashipcanalsoupsetit.

Computers

alsohavesomedisadvantages.sotheymustbeusedinaproperway.Since

Computerscameintobeing,ourliveshasbeenchangedalot.MoreandmorepeoplehavetheirComputersthatcanbeusedtodomanythings.Forinstance,wecanuseittoplaygames,watchmoviesandlistentomusicathome.Besides,

ComputerscanbeusedtocommunicatewithothersbyWechatandQQ.WiththehelpofComputers,businessmencanplaceorcancelordersonline.What’smore,whenwestudentsgetintosometroublesinstudy,wecanuseittolookfortheinformation.whenwehavenotimetogoshopping,wecandosomeshoppingbyComputers.Post-reading

Body

BeginningEnding水能載舟，亦能覆舟。inthe1950sthere’snodoubt+that從句withthehelpofsb.=withone’shelpkeepdoingsth.1.在20世紀(jì)50年代2.毫無(wú)疑問(wèn)3.在某人的幫助下4.一直做某事

讓某人一直做某事5.出現(xiàn)6.多虧了某人7.而不是做某事8.舉例9.太多（+不可數(shù)名詞）

太keepsb.doingsth.comeintobeingthankstosb.insteadofdoingsth.forinstance=forexampletoomuch+不可數(shù)名詞muchtoo+adj./adv.adj./adv.+enoughtodosth.makesb.dosth.makesb.+adj.turnon/turnoff10.足夠......做某事11.讓某人做某事

使某人......12.打開/關(guān)掉/

開大聲點(diǎn)/關(guān)小聲點(diǎn)13.像往常一樣14.沒有（三者及以上）15.換掉16.在世界上17.事實(shí)證明......turnup/turndownasusualnoneofthembreakdownintheworlditproves+that從句Step5：Post-reading書面表達(dá)：如今微信已成為我們生活中的一部分，尤其受到年輕人的歡迎。微信優(yōu)點(diǎn)：①可以非常迅速地與朋友進(jìn)行文字，表情等交流。②可以與朋友分享圖片，音樂(lè)，視頻等。③不僅能發(fā)送語(yǔ)音信息，而且能直接通話④使用時(shí)不受時(shí)間地點(diǎn)限制，而且免費(fèi)。缺點(diǎn)：①容易單獨(dú)會(huì)見微信朋友②容易玩的太癡迷③易遭受網(wǎng)絡(luò)詐騙Step1:Trytowritedown5or6sentencesandjudgeitbyyourself.(2mins)Step2:Trytowritedown1moresentencewithyourdeskmate.Askyour

deskmatetohelpyoucorrectyourwriting.(2mins)Step3:Writedownthebeginningandendingsentences.Then,discussingroup.(3mins)Step4:Chooseavolunteertoshowthefinalshortpassageforourclass.(5mins）Writtingsteps

Nowadays,sinceWeChatcameintobeing,ithasbeenapartofourlife.It'sbecomingmoreandmorepopularwithyoungpeoplebecauseofthefollowingadvantages.

First,withthehelpofWeChat,wecancommunicatewithfriendsbysendingwordsinsteadofwritingletters.

Second,wecansharepictures,musicandvideoswiththem.Third,wecannotonlysendviocemessagestothembutalsospeaktothemdirectly.Besides,wecanuesitanytime.Lastbutnotleast,thankstotheWeChat,wecansavemoney,becauseweuseitforfree.

Inmyopinion,althoughWeChathasimprovedourlives,itshouldbeusedproperly.Weshouldn'tloseourselvesinit.Wehavetobecarefulaboutourpersonalinformation,somewebsitesusetheshortmessagestocheatothers.佳作賞析Supposeyouwereonaspecialdayin2030.Duringtheday,therewerenocomputersintheworld.Whattroublewouldyouhave?Youmaybeginlikethis:OneDayWithoutComputers

Today,whenIgotup,Ijustturnedonthecomputerasusual,butitdidn’twork.ThenItriedmybrother’sPC,myparents’,evenm