Unit 6 Section B（1a-1e）【知识精讲+拓展延伸】 九年级 英语教材精讲课件（人教版）

人教版

九年级上册Unit6Whenwasitinvented?SectionB1a--1eLearninggoals1.Tolearnsomewordstodescribehowfoodcantastecrispy,sour,sweet,salty2.Tolistenforspecificinformation3.Totalkaboutthehistoryofpotatochips,usingpassivevoiceDidyouknowpotatochipswereinventedbymistake?customern.

顾客；客户

Newwordscrispyadj.

脆的；酥脆的saltyadj.咸的souradj.酸的；有酸味的[ˈkʌstəmə][ˈkrɪspi][ˈsaʊə]

[ˈsɔːlti]ReadandlearnWhatkindofsnacksdoyouliketoeat?Howdotheytastes?Canyoudescribethem?Whichtastedoyoulikebest?ice-creamsweet,coolanddelicious!WarmingupHowdothebreadandsnacktaste?Canyouthinkofanyotherflavor(n.味)?Whatarethefourbasickindsoftastes?soursweet

bitterhotTheyarecrispy（脆的）.

potatochips（薯片）

biscuits

（饼干）Howdoesthefoodtaste?Presentationlemons

柠檬

yogurt酸奶Theyaresour（酸的.watermelon（西瓜）cake蛋糕Theyaresweet（甜的）.lazichicken辣子鸡hotpot火锅Theyarehot(辣的).Differentfoodhasdifferenttaste(味道).不可数名词Theyare

salty(咸的).saltedeggs

盐蛋bittermelon苦瓜coffee咖啡Ittastes

bitter.['bɪtə]苦的crispy/hardTheytastecrispyandhard.sweet/softpickledvegetable

['pɪk(ə)ld]腌菜

What’sthis?/Whatarethese?It’sa/an…..They’re…..Howdoesittaste?/Howdotheytaste?It’s/They’re…….Canyouthinkofsomefruitwhichissweet/sour?Whatfoodiscrispy/salty?SweetfoodSaltyfoodSourfoodcrispfood1aThewordsintheboxdescribehowfoodcantaste.Writethemunderthecorrectpictures.Somepictureshavemorethanoneword.sweetcrispysaltysour__________________________________________________crispysaltysoursweetsaltyadj.脆的；酥脆的adj.咸的adj.酸的Pre-listeningsweet____________________________crispy____________________________salty____________________________sour____________________________Writethenameofadifferentfoodaftereachword.bananaappleBeijingDuckpotatochipsgrapecandycrackercookiesaltsaltedfishlemon1bPre-listeningFirstwhatareneeded?Thepotatoesarecutintoslices.Theslicesarecookedinthepanforalongtimeuntiltheywerecrispy.Thepepperandsaltaresprinkled(撒，洒)..potatochipsWhowerepotatochipsinventedby?Whenwerepotatochipsinvented?Doyouknowhowtomakepotatochips?Alotofsaltareputonthem.Theyshouldbecutreallythin.LeadinPre-listeningListenandcircleTfortrueorFforfalse.1.Potatochipswereinventedbymistake.TF2.Theywereinventedin1863.TF3.Thecustomerthoughtthepotatoeswerenotthinenough.TF4.Thecustomersaidtheywerenotsaltyenough.TF5.Georgewantedtomakethecustomerhappy.TF6.Thecustomerwashappyintheend.TF1cn.顾客1853thinangryWhile-listeningListenagain.Completethesentences.

TheHistoryofPotatoChipsDoyouknowhowpotatochipswereinvented?Potatochips_______byacookcalledGeorgeCrum.Theywereinventedin________.GeorgeCrumcutthepotatoesreally,really______andthencookedthemforalongtimeuntiltheywere_________.Finallyheputlotsofsaltonthemsotheywere___________.wereinvented1853thincrispyreallysalty

1dWhile-listeningListenandrepeat.Post-listeningMakeaconversationabouttheinventionofpotatochips.Usetheinformationin1cand1d.1eDidyouknowpotatochipswereinventedbymistake?Wow,Ididn’tknowthat.Whoinventedthem?It’ssaidthattheywereinventedbyacookcalledGeorgeCrum.Whenwasthat?Oh,itwasbackin1853.Whywasitanaccident?Oneday,acustomerorderedaplateoffriedpotatoes.Georgecookedthemforhim.Whenthepotatoescame,hesaidtheywerecuttoothickandsentthembacktothekitchen.Post-listeningSowhathappened?Georgewasangry,sohecutthepotatoesreally,reallythin,andhecookedthemforalongtimeuntiltheywerecrispy.Andheputlotsofsaltonthemsotheywerereallysalty.Hethoughtthecustomerwouldhatethem.Andthen?Andthecustomerlovedthemandaskedformore.Hetoldtheothercustomersaboutthem,andsooneveryonewasorderingthinlycut,crispy,saltypotatochips.Doyouknowhowsandwichwasinvented?ItissaidthesandwichwasinventedinEnglandinthe18thcenturybyJohnMontagu,4thEarlofSandwich.

Heaskedhisservantstoprepareachunk(大块)ofmeatbetweentwoslicesofbread,sothathecouldcarryongamblingwithoutstoppingtoeat.拓展阅读DiscussionWhatkindsofdeliciousfooddoesyourhometownhave?Haveyouevereatenhotpot?Hotpotisafeature(特色）foodofChongqing.WhentheChongqingnativesgettogetherwiththeirfriends,mostofthemwouldliketochoosehotpotastheirdinner.Hotpotisfamousforitsspicyandhot（麻辣），

If

you

are

adventurous

（有冒险精神）enough,

you

can

cook

anything

with

hot

pot.Lovefood,Lovehometown,Lovelife!爱美食，爱家乡，爱生活！1.bymistake为介词短语，意为“无意中；错误地”,

相当于accidentally。

例句：►Imissedtheschoolbusbymistakethismorning.

今天早上我无意中错过了校车。►Itookyourpenbymistake.我错拿了你的钢笔。LanguagePoints【拓展】

mistake还可以构成短语：

makeamistake/makemistakes犯错误；

mistake…for…把……错认成……。例句：►Don’tmakemistakesanymore.别再出错了。►ImistookherforourEnglishteacher.

我把她错认成我们的英语老师了。2.Thecustomerthoughtthepotatoeswerenotthinenough.顾客认为土豆不够薄。单词enough修饰名词时，不需要倒装.如:我有足够的钱。餐厅里的食物不太够。►Thereisn’tenoughfoodinthedinninghall.其修饰形容词、副词要倒装。►Hewrotecarefullyenoughtogettheawardofthecompetition.Ihaveenoughmoney.enough常可以和词组so-that，too-to转换。如：他跑得不够快，赶不上其他人了。用enough►Hedidn’trunfastenoughtocatchupwiththeothers.用so-that►Heransoslowlythathecouldn’tcatchupwiththeothers.用too-to►Herantooslowlytocatchupwiththeothers.3.Thecustomerwashappyintheend.

顾客最终高兴了。(1)intheend后来，最后，终于

attheendof...

在……末

bytheendof...

到……末为止如：①这个月月末我们将会开个会。►Attheendofthismonthwe’llhaveameeting.②到去年末为止我们已经做了十架飞机了。►Bytheendoflastyearwe’vemadetenplanes.(2)intheend用一个单词表达可以是finally，用一个短语表达可以用atlast。

如：最后他赢了。

Hewonintheend.Hewonfinally.Hewonatlast.Ⅰ.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)alongtimeago.5.Ourclassroom_________________(shouldclean)everyday.wasinvented

seeingwasmade

wasdiscoveredshouldbecleanedExercises4.薯条是一个名Crum的厨师发明的。Thepotatochips____________byacook_______Crum.5.昨天这个厨师往鱼上面撒了许多盐。The___________lotsofsalt_______thefishyesterday.

calledcookputwereinventedonⅡ.

翻译句子。1.顾客最后终于高兴了。Thecustomerwashappy________________.2.这个顾客说这个薯条不够脆。Thecustomersaidthatthepotatochipsweren’t____________.3.乔治想让顾客高兴。Georgewanted_______________thecustomer____________.intheendcrispy