2023学年完整公开课版Unit9Whenwasitinvented29

Let’smakeupsomepuzzles

Hereisabox.Youcanuseittocookmanykindsofdeliciousfood,suchasfish,chicken,meatandrice.Youcanalsouseittomakecolddishandfoodhotinafewminutes.

Let’smakeupsomepuzzles

Hereisanotherboxwithabeautifulglassface.ItlookslikeaTV,butitisn’taTV.Itcanbeusedforworkingveryfast.Itcanhelpyoustudyorwork.

Thislittlethinghasgotnumbersfrom0to9.Itisverysmall,soyoucanputitintoyourpocket.Whereveryougo,youcanuseittotalktoyourfriendsandyourfamiliesfaraway.Hereisabigbox.Itcanmakeyourclothescleanandyourhouseworkeasy.Withitshelpyoucanhavemoretimetorelaxortowork.Playaguessinggame

Wasthe…inventedin…/…ago?date

TheabacuswasinventedinthesixthcenturybyChinesepeople.Theumbrellawasinventedabout4,000yearsagoinAssyria,ChinaandEgypt.Thebinocularswasinventedin1854byGalileoPorroinItaly.Thecamerawasinventedin1827byJosephNicephore

Niepcewhotookthefirstpicture.Thebicyclewasinventedin1880sinEngland.Challengeyourthinking

Whatwouldyoudoifyouarealoneonatinyisland?Choosefiveinventionsyouwouldliketohaveontheislandwithyou.Tellthegroupwhatyouchoseandwhy.A:I’dliketohavesomematchesbecauseIcouldlightafiretokeepwarm.B:Yes,butthat’snotgoingtohelpyouleavetheisland.Ithinkitwouldbebettertohaveamobilephone.Whatwouldyouchoose

ifyouwereontheislandalone?MatchesFoodClothesTelephoneMp3MoneyTastes

1.Canyoutellmefivetastes?

2.Whichfoodissour?

3.Whichfoodissweet?

4.Whichfoodisbitter?

5.Whichfoodissalty?

6.Whichfoodishot?

Soursweetbitterhotsaltyorangeyogurt

applebananateacoffeesaltpizzapepperonion

crispyandsalty-Howdoesittaste?-Ittastes…sour-Howdoesittaste?-Ittastes…

sweet-Howdoesittaste?-Ittastes…sweet

-Howdoesittaste?-Ittastes…-Whatkindoffooddoyoulike?-Ilikefoodthattastes…crispysaltysoursweet

Thehistoryofchips1.Idon’tlikeeatingchocolate.Thetasteistoo_______.2.Momaddedsaltbutitstillwasn’t_____enough.3.Ipreferlemonstooranges.Ilikethe_______taste.4.Shelikes________cookies.Theyarehard,dryandeasilybroken.crispysweetsaltysourcrispysweetsaltysourListening(2a,2b:P71)Thepotatochipswereinventedbymistake.2.Theywereinventedin1863.3.Thecustomerthoughtthepotatoesweren’tthinenough.TFT4.Thecustomersaidtheyweren’tsaltyenough.5.Georgewantedtomakethecustomerhappy.6.Thecustomerwashappyintheend.TFF_____________thatpotatochipswereinventedbymistake?Chips_______________byachefcalledGeorgeCrum.Theywereinventedin______.GeorgeCrumcookedthemforalongtimeuntilthey___________Andhesprinkledlotsofsaltonthemsotheywere__________.ThehistoryofchipsDidyouknowwereinvented1853werecrispyreallysaltyPairworkMakeupashortdialogueaboutthehistoryofpotatochipswithyourpartner.和你的同伴一起编排一段有关薯片历史的对话Gothroughthelongpassageandtrytofindthemainideasaboutthepassage,Thenwriteapassageaboutitforshort.快速阅读该长篇文章，设法找出文章中的大意，并进行缩写。1.Woodcanbeusedfor______paper.A.makingB.tomakeC.made D.make2．-Doyouthinkthelightbulbswereinvented_____?–No,Idon’tthingso.A.bymistakes B.bymistakeC.formistake D.withmistakesA

B

1.电拖鞋是什么时候发明的？

When_____theelectric________invented?2.它们是由谁发明的？

______weretheyinvented______?3.妈妈加了盐，但它仍然不够咸。

Momaddedsaltbutitstillwasn’t____________.wereslippersWhoby

saltyenough

１Thealarmclockisoneofthemostannoying________（发明）.2Thescoops_______(use)forhavingsoup.=Thescoops______(use)____havesoup.3Thealarmclockisusedfor_________（叫醒我）４Thepotatochipswereinventedbyachef.______thepotatochips________by?By_________thepotatochips______?5Thetelephonewasinventedin1876.______thetelephone____?达标练习inventionsareusedareusedtowakingmeupWhowereinventedwhomwereinventedWhenwas

inventedRevision:Writing1.Weusethe________tocount.Thecalculator____________calculatorisusedforcounting.

Themicrowaveoven_________________________2.Weuse___________________to

makethefoodhot.themicrowaveovenisusedfor3.The_______isusedfor_______________.(talkwithpeople)talkingwithpeopletelephonemakingthefoodhot.

4.Who_____light

bulbs_________by?5.Thecomputer________________1976.wereinventedwasinventedin

汉译英。（1）计算机是何时发明的？

（2）谁发明了计算机？

（3）计算器是用来做什么？

（4）你认为什么是最有用的发明？

（5）每天它能够给人们更多时间工作和玩。

1.Whenwasthecomputerinvented?2.Whowasthecomputerinventedby?3.What’s

thecalculatorusedfor?4.Whatdoyouthinkisthemosthelpfulinvention?5.Itgivespeoplemoretimetoworkandplay

everyday.Revision:Writing1.I

open

thedoor.Thedoor

is

opened

by

me.2.Heoftenhelps

homelesspeople.Homelesspeople

areoftenhelped

by

him.3.I

handedout

somepapersjustnow.Somepapers

werehandedout

by

mejustnow.主动语态:主语是动作的执行者。被动语态:主语是动作的承受者。被动语态结构为：(主动语态)(主动语态)(主动语态)(被动语态)(被动)(被动语态)be+过去分词将下列句子变为被动语态。Revision:WritingExercise把下列句子变成被动句1.Bellinventedthetelephone.2.Tomboughtsomebooksyesterday.ThetelephonewasinventedbyBell.Somebookswereboughtyesterday.3.Theyvisitedthecitylastyear.4.MrGreenofteninvitesmetohishouse.5.Peopleallovertheworldlovefootball.Thecitywasvisitedbythemlastyear.Iamofteninvitedby

MrGreentohishouse.Footballislovedbypeopleallovertheworld.6、TheyhavegrownriceinSouthChina.7.Wemustplantmoretreesnextyear.

8.Iamgoingtocleanourclassroomtomorrow.Moretreesmustbeplantednextyear.Ourclassroomisgoingtobecleanedtomorrow.RicehasbeengrowninSouthChina.把被动句变疑问.HasricebeengrowninSouthChina？变被动语态的特殊情况一、双宾语buy/makesb

sth=buy/makesth

for

sbgivesb

sth=givesth

to

sb1.Myfatherboughtmeacomputer.Acomputerwasboughtformebymyfather.Iwasboughtacomputerbymyfather.2.Hegivesmeabook.Abookisgiventomebyhim.IamgivenabookbyhimSth+be+过去分词+for/tosb+bysb.Sb+be+过去分词sth+bysb二、无to不定式

一感二听三让四看feellistento.hearlet.have.makewatch.see.lookat.notice变为被动时加上toeg.Weoftenseehimplaybasketball.Heisoftenseentoplaybasketballbyus.Thebossmadethechildrenworkforlong.Thechildrenweremadetoworkforlongbythe