Unit6Thepowerofplants第3課時(shí)DevelopingideasWhatplantscanyouseeinthepictures?ricewheatcornLeadinRice,wheatandcornaretheworld’stopthreefoodplants.Howdoyouusuallyeatthem?ricenoodlesbreadtaco1.whatistaco?

Atortilla（卷餅）filledwithmeat,

vegetablesandsauce(醬）.2.Whichcountry’straditionalfoodistaco?

Mexico.Lead-inPre-listeningListentotheopeningofthevlogandchoosethemainidea.a.ItexplainstheimportanceofcorninMexico.b.Itcomparescornindifferentcountries.c.ItdescribesafamousMexicancorndish.1While-listeningListenagainandcompleteJason’snotesforthevlog.4029,000600cookingcultureJasonWhat

is

he

doing?

He

is

taking

a

vlog

about

the

corn

in

the

Sweet

Corn

Festival.Listentotheconversationandcompletethesentences.Fromcorn1.

,wecanmakefoodssuchastacosand2.

.Cornsilkisusedtomake3.

.Itisgoodforyour4.

.Usingcornhusks,wecanmaketraditional5.

.seedschipsteahealthdolls3Listenagain.Thentalkabout

howpeopleaskforandgive

permission.Askingforpermission:Givingpermission:CanI

trythetaco?MayI

takeavideoofthem?Certainly.Sure.LearningtolearnAskingforandgivingpermissionAskingforpermissionhelpsusgetsomethinginapoliteway.WecanusethequestionsMayI...?orCould/CanI...?PeoplecanreplyCertainly,SureorGoahead.Post-listeningFurther

thinkingHow

do

you

understand

“Corn

isn’t

just

food.It’s

also

part

ofMexican

culture.”?

tea,medicine

corn

silkcorn

seeds

food,feed(飼料）

corn

huskshandicrafts(手工藝品）1.What

are

the

parts

of

an

ear

of

corn?2.What

are

the

parts

used

for?FreetalkWorkinpairs.Actoutaconversationabouttheusesofaplant.4Step1Chooseoneoftheplantsand thinkaboutthreewaysofusingit.

Step2Haveaconversationaboutitsuses.Trytoaskforandgivepermissionintheconversation.

rosecottonbambooCouldyoutellmeabout...?Ofcourse.

Chinesepeople

make...with...MayIknowitsotheruses?Sure,wealso

use...tomake...Whatdoyouthinktheimportanceof...

...isimportantfor...UsefulexpressionsA:Couldyoutellme

aboutbamboo?B:Ofcourse.Weusebambooforfood.A:Yes,that'strue.lofteneatbambooshootswithnoodles.B:Wealsousebambooasabuildingmaterial.Youcanbuildhouseswithit.A:That'sinteresting!MayIaskyou

foranotheruse?B:Yes,noproblem.Youcanmakepaperfrombamboo.A:Thankyou!Bambooisaveryusefulplant.Samplebamboo1.…wecanmakefoodssuchastacosand………我們可以制作食物，比如玉米卷和……

辨析：suchas和forexamplesuchas

通常用來(lái)列舉同類人或事物中的幾個(gè)例子,其前一般用逗號(hào)隔開(kāi)forexample用來(lái)列舉某一論點(diǎn)或情況，一般只列舉同類人或事物中的一個(gè)，在句中作插入語(yǔ)。用逗號(hào)與前后隔開(kāi)，可置于句首、句中或句末Languagepoints請(qǐng)用suchas，forexample填空。(1)MysonisweakinEnglish.

，hehastroubleremembering

Englishwords.

(2)Hehasmanyhobbies，

collectingcoins，playingthepiano

andsoon.

Forexample

suchas

2.Cornsilkisusedtomake…玉米須被用來(lái)做……

辨析：usedto,beusedto,beusedforbeusedtodosth.=beusedfordoingsth.“被用來(lái)做某事”，其中的todo是動(dòng)詞不定式，用來(lái)表目的。beusedtodoingsth.“習(xí)慣做某事”，其中的to是介詞，故其后要接v.-ing形式usedtodosth.“過(guò)去常常做某事”請(qǐng)用usedto,beusedtobeusedfor填空。(1)

MrBlack

beabusdriver,butnowheisabankclerk.(2)

Thepen

writing.(3)

Myfather

drinkingcoffeeafterdinner.(4)

Thismachine__________makebread.

usedtoisusedforisusedtoisusedtoI.根據(jù)句意和漢語(yǔ)提示寫(xiě)出所缺的單詞1.Thefarmersarehappytoseefieldsof

(玉米).2.Iwanttobuysome

(絲綢)dressesforyou.3.The

(玫瑰)isthecityflowerofShenyang.4.Theblouseismadeof

(棉花)anditfeelsgood.5.Peoplecanuse

(竹子)tobuildahouse.Exercisecorn

silk

rose

cotton

bamboo

Ⅱ.單項(xiàng)填空()1.—You’dbetter_______foodtothetigers.—Sorry，Iwon’tdoitagain.A.notthrowB.nottothrow C.throwD.tonotthrow()2.“Pleaseletmehelpyou，”hesaidtome_______apoliteway.A.by B.with C.in D.at()3.MrBrown_______atalkoncountrymusicnextMonday.A.gives B.willgive C.isgiving D.gave()4.Istart_______homeworkafterdinner.A.doing B.do C.does D.todoing()5.Heboughtalotoffruit，_______applesandoranges.A.such