九年级全unit9whenwasitinvented 全国公开课一等奖

九年级人教新目标Unit9Whenwasitinvented?SectionBHowdotheytaste?

crispysaltycrispysweetsoursweetsweetsoftbittersweetsoftsalty1a.Fillintheblankswiththewords

given.soursweet,crispy,salty,soursalty

sweetsweet1b.Writethenameofadifferentfood

aftereachword.sweet:crispy:salty:sour:banana,apple,cakepotatochips,saladpizza,frenchfriesgrape,lemon2a.Listenandcircle“T”or“F”.1.Potatochipswereinventedbymistake.2.Theywereinventedin1863.3.Thecustomerthoughtthepotatoesweren’tthinenough.4.Thecustomersaidtheyweren’tsaltyenough.5.Georgewantedtomakethecustomerhappy.6.Thecustomerwashappyintheend.

TFTFFT

Thehistoryofpotatochips_____________thatpotatochipswereinventedbymistake?Potatochips_____________byachefcalledGeorgeCrum.Theywereinventedin_______.GeorgeCrumcookedthemforalongtimeuntilthey__________.Andhesprinkledlotsofsaltonthemsotheywere_____________.Didyouknow

wereinvented1853werecrispyreallysalty2b.Listenagainandcompletethesentences.

2c.Pairwork

A:

Didyouknowpotatochipswereinventedbymistake?B:

Wow,Ididn’tknowthat.Whoinventedthem?A:itwasinventedbyachefcalledGerogeCrum.3a.Readthearticleandanswerthe

questions.Whoinventedtea?1.Whatisthearticleabout?2.Whenwasitinvented?3.Whowasitinventedby?

4.Howwasitinvented?Itisabouttheinventionoftea.

Itwasinventedoverthreethousandyearsbefore1610..ItwasininventedbytheChineseemperor,ShenNong.

Itwasinventedbyaccident.Matchthemintosentences.Theteawasn’tbrought

tothewesternworlduntil1610.ShenNongwasboilingdrinkingwater

overanopenfireSomeleavesfelltothewaterTheemperordecidedtotastethehotmixtureExplanation

1.Potatochipswereinventedbymistakes.mistake作名词“错误，误会”。也可以作动词“弄错，犯错”。常见形式有：makeamistake

出错e.g.Youhavemadeamistakehere.mistake…for…

错把……当作……Theymistookhimforhisbrother.bymistake

错误地

e.g.Theysentthelettertomebymistake.3.Didyouknowthattea…wasinventedbyaccident?byaccident“偶然地，碰巧”。同义词组是bychance，同义词是accidentally,反义词组是onpurpose.4.Althoughteawasn’tbroughttothewesternworlduntil1610,…(1)although

作连词,意为“虽然,尽管”,引导让步状语从句,我们不能根据汉语习惯,在后面使用连词but,不过它可以与yet,still连用;e.g.Althoughheisverybusy,healwaystalkswithus.(2)not…until

意为“直到……才”until引导一个时间状语从句。

Ididnot

gotobed

untilIfinishedmyhomework.5.AccordingtoanancientChineselegend，theemperorShenNongdiscoveredtea…(1)accordingto

是个短语介词,意为“根据……;依照……”后接代词,名词或由疑问词以及whether引出的名词性从句。e.g.Accordingtotheradio,itwillraintomorrow.(2)discover意为“发现”，指发现的对象是本来存在的。

find意为“找到”，强调结果。

invent意为“发明”，发明的对象是以前没有的东西。3b.Writeanarticleusingthenotes

inthebox.Who:collegestudentsWhat:metalpieplate,flyingdiskWhen:1950sWhere:bakeryBridgeport,ConnecticutHow:studentseatpie,throwpieplatesToday:clubs,magazines,festivalAsampleversion

FrompieplatetoflyingdiskTheflyingdiskwasinventedbycollegestudents.Flyingdiskisametalpieplate.Inthe1950s,severalcollegestudentsatepiesmadebyabakeryinBridgeport,Connecticut.Theyfounditinterestingtothrowthepieplateswitheachother.Thenitbecameagame.Today,thereareflyingdiskclubs,magazinesandevenafestival.

4a.Thinkofsomethingthatyoudon’tlike

doing.Thenthinkofaninventionthat

couldhelpyou.Writethedetailsinthechart.

Problem:weoftengethurtbythehotwaterinthecup.Newinvention:acupthatcantellyouthetemperatureofthewater.Use:Itcanshowthetemperatureofthewater.Price:

$50用所给词的正确形式填空。

1.TheTV____________(invent)around1927.2.Theyareusedfor_______(see)inthepark.3.Thiskite_________(make)byUncleWang.4.Tea______________(discover)a