新人教版高中英語必修4-unit2-Using-language課件

Unit2WorkingthelandUsinglanguageUnit2Wordspreviewchemicalproductionbacteriapestnutritionmineraldiscoveryadj.化學(xué)的;關(guān)于化學(xué)的n.生產(chǎn);制造n.細(xì)菌n.害蟲;害獸;害鳥n.營養(yǎng);滋養(yǎng);食物n.礦物;礦石n.發(fā)現(xiàn);發(fā)覺Wordspreviewchemicaladj.化學(xué)的;focussoilreducerootskimunderlinesummarycommentn.焦點(diǎn);中心點(diǎn)vt.集中;聚焦n.土壤vt.減少;減縮n.根;根源vt.瀏覽;略讀vt.畫底線標(biāo)出;強(qiáng)調(diào)n.總結(jié);摘要;概要n.評論;議論vi.&vt.表達(dá)意見;

做出評論focusn.焦點(diǎn);中心點(diǎn)Expressionspreviewbuildupleadtofocusonkeep…freefrom/of逐漸增強(qiáng);建立;開發(fā)導(dǎo)致;造成(后果)集中(注意力,精力等)于使…免受(影響,傷害等)；使…不含(有害物)Expressionspreviewbuildup逐Itisfertilizer.

Whatisthesubstanceweputonthesoiltomakecropsgrow?Itisfertilizer.WhatistheHowmanykindsoffertilizersdofarmersuse?Twokinds.Theyarechemicalfertilizersandnaturalones.HowmanykindsoffertilizersOrganicFarmingOrganicFarmingchemicalfertilizer

cowdung用化學(xué)肥料和有機(jī)肥料的區(qū)別:chemicalfertilizercowdung用化ReadingCHEMICALORORGANICFARMING?ReadingCHEMICALORORGANICFARB.Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.A.Problemscausedbychemicalfertilizers.Themain

ideaofeachparagraphP1.P2.D.Farmersandcustomersturntoorganicfarming.C.Othermethodstokeepthesoilfertile.

P3.P4.B.Long-termuseofchemicalfeChemical

farmingstopcropdisease

increase

productiondamagethelandby

killing…affect

cropsby

staying…leadtocancer/illnessesby

building

up…h(huán)ave

lessnutritionbygrowingtoofastCarefulReadingChemicalfarmingstopcropdamaOrganic

farmingusenaturalwastemake

the

soil

rich

inmineralschange

the

cropputmineralsbackintosoil,making…plantcropswithdifferentrootsusedifferentlevelsoflandplant

grassbetweencropsprevent…from…,anaturalfertilizerOrganicfarmingusenaturalwa1.WhichstatementisWRONGaccordingtothetext?A.Allcropsareorganic.B.Recently,theterm“organicfarming”hasgainedanothermeaning.C.Allfarmersusefertilizers.D.Scientistsbelievesomechemicalfertilizersarebetterforpeople.Choosethebestanswer.

D1.WhichstatementisWRONGCho2.Whichisnotthereasonwhyorganicfarmersprefernaturalwastefromanimals?A.Itcankeepthefoodfreefromchemicals.B.Itcankeeptheair,soilandwaterfreefromchemicals.C.Itcankillharmfulpests.D.Itcanmakethesoilricherinmineral.C2.Whichisnotthereasonwhy3.Whatistheadvantageofusingchemicalfertilizers?A.Leavingchemicalsinthegroundforalongtimeisgoodforwatersupply.B.Theycangetthesoilexhausted.C.Theycankillhelpfulbacteria.D.Theycankillharmfulpest.D

3.Whatistheadvantageofus4.Theorganicfarmersdothefollowingsexcept______.A.addingfertilizerswhichisrichinmineralB.changingcropseverytwoorthreeyearsC.plantingseedsindifferentlayersofthesoilD.plantinggrassbetweencropstopreventthesoilfrombeingblownawayA

4.Theorganicfarmersdothe1.Thesechemicalsinthefoodsupply

buildupinpeople’sbodiesovertime.build

up

增強(qiáng);建立;開發(fā)

Hardworkingconditionsbuildupcharacter.艱苦的工作條件能磨練人的性格。LanguagePoints1.Thesechemicalsinthefood2.Manyofthesechemicalscanlead

to

cancerorotherillnesses.lead

to:導(dǎo)致;造成Toomuchworkandtoolittlerestoftenlead

toillness.

過量的工作和過少的休息會(huì)引起疾病。Allroadslead

toRome.

條條大道通羅馬。2.Manyofthesechemicalscan3.Theyfocus

onkeepingtheirsoilrichandfreeofdisease.focus

on:集中(注意力,精力等)于Youshouldfocusyourattentiononyourwork.把注意力集中在你的工作上。

Olympus:Focus

onlife.奧林巴斯:瞄準(zhǔn)生活。3.Theyfocusonkeepingtheir4.

reduce

v.

減少,降低e.g.公司盡力通過減少花銷來提高利潤。Thecompanytriestoincreaseprofitsby_______________.今年我們已經(jīng)減少了業(yè)務(wù)開支。We______________expensesthisyear.reducing

costshave

reduced4.reducev.減少,降低red5.Thisalso

keeps

theair,soil,waterandcropsfree

fromchemicals.

keeps…freefrom/of:

使…免受(影響,傷害等);使不含(有害物)Weputourbooksinbookcasetokeep

themfreefromdust.Youmusttakecaretokeepthewoundfreefromthedirt.5.Thisalsokeepstheair,so[拓展]1)keep

…from:

隱瞞,不把……告訴(某人)阻止,避免”如：Hewon’tbeabletokeepthetruthfromhisfather.Youcan’tkeephimfromdoingthatthing.2)free

from:

使解除,使擺脫如：Theyaimtofreethestudentsfromtoomuchhomework.3)befree

of

sb/sth:

擺脫某人/某物I’mfree

ofthatjobatlast.[拓展]Expressions

1.化肥2.對…造成損害3.洗掉某物4.導(dǎo)致;造成(后果);通往5.逐漸增強(qiáng),建立6.另外(還有)7.使…免受(影響);8.集中(注意力、精力)于9.每隔幾年10.避免做…chemicalfertilizerscause/dodamagetowashoffleadtobulidupinaddition(to)keep…freefrom/offocusoneveryfewyearsavoiddoingExpressions1.化肥chemicalfertExercises

cause/dodamageto,washoff,leadto,bulidup,inaddition(to),keep…freefrom/of,focuson,avoiddoing1.Hismistakes______hisfailure.2.Thesechemicalsinthefoodsupply________inpeople’sbodiesovertime.3.Allroads_______Rome.4.

Please_____yourmind___

thefollowingproblem.5.Childrenshould________________violence.led

tobulid

upfocusonlead

tobekeptfreefromExercisescause/dodamageto,6.Helikesbasketball.___________,helikesfootball.Helikesbasketball_____________football.7.LittleTomstuckto________themud____hisshoesbyhimselfbeforehecamein.8.Itriedto______________(meet)himbecausehealwaysboresme.9.ThestormonMay3___________great__________peopleinBurmasofar.cause/dodamageto,washoff,leadto,bulidup,inaddition(to),keep…freefrom/of,focuson,avoiddoingIn

additioninadditionto

washingoffavoidmeetinghas

causeddamage

to6.Helikesbasketball.______新人教版高中英語必修4_unit2_Using_language課件Thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday.1Asyoulistentothisdialogue,keepinmindwhatyouhavejustreadaboutchemicalfertilizers.Whatisthemaintopicoftheconversation?Listening

Thepossiblebadeffectsofch1.PaulthinksthatCarrieisnottellinghimthetruth.2.Usingchemicalfertilizersalwaysmakesvegetablesemptyinside.TrueFalse2Listentothedialogueasecondtime.Decideifthefollowingstatementsaretrueorfalse,accordingtotheconversation.Giveyourreasons.1.PaulthinksthatCarrieis3.Today’sfruitisnotashealthyforpeopleasfruitfiftyyearsago.4.Eatingmorevegetablesmightnotalwaysbegoodforus.5.Alloftoday’svegetableslookhealthybutinfactarenot.FalseTrueTrue3.Today’sfruitisnotasheaWHAT’SWRONGWITHTHEVEGETABLES?Girl:Hey,Paul,listentothis…amagazinearticleaboutafarmerwhousedtoomuchchemicalfertilizeronhisfields.Whenhisvegetableswerepicked,theywereallfoundtobeempty!ListeningtextWHAT’SWRONGWITHTHEGirl:HeyBOY:Empty?You’rejoking,Carrie…thatcan’tbetrue!Girl:Ididn’tbelieveiteither!Thisarticlesaysthiscanhappensometimeswithvegetableslikecucumbers,carrotsandpumpkins.Thischemicalfertilizermakesthevegetablesgrowfasttolookbigandbeautiful,butthey’reemptyinside!BOY:Empty?You’rejoking,CarBOY:Youknow,I’venoticedthatsometimesmymumbuyscarrotsfromthesupermarketthathavebigholesdownthecenter.Iguessthatmustbefromusingchemicalfertilizers!GIRL:Yeah,that’swhatthemagazinesays!Themainpointofthearticle,though,isn’taboutholesinourvegetables.BOY:Youknow,I’venoticedtIt’stalkingaboutwhythefruitandvegetablesweeattodayaren’tasnutritiousastheonesourgrandparentsate.BOY:What?Mymumisalwaystellingmetoeatmorevegetables,becausethey’regoodforme!GIRL:Yeah,Iknow–mymothersaysthatsamething!Andit’strue-It’stalkingaboutwtheyaregoodforus…buttheproblemisthattheyaren’thealthyenough!Allthesechemicalfertilizers–theykilloffboththebadandthegoodthingsintheground.Thegrounddoesn’thaveenoughvitaminsandmineralsanymoretohelpcropsgrowhealthy.theyaregoodforus…buttheBOY:So…ifourfruitandvegetablesweregrownwithchemicalfertilizers,theymightlookhealthy,butprobablyaren’treallyhealthy?Iguesswe’vegottostopusingsomanychemicalfertilizerstogrowourfood!BOY:So…ifourfruitandvegF=FarmerC=CustomerF:Goodmorning!Wouldyoulikesomeorganiccarrotsthismorning?C:Hmm…They’realittleexpensive!Whatistheadvantageof…?Reading,SpeakingandwritingSampledialogueF=FarmerC=CustomerReadinF:Theadvantageofthesevegetablesisthattheyaregreenfoodsotheyaresafetoeatandgoodforyourfamily.C:Butwhatistheadvantageofhavinggreenfood?Iknowallvegetablesaregoodforyouandthosedowntheroadlookgreentoo.AndIcanbuythemathalfpricethere.F:TheadvantageofthesevegeF:Well,letmeexplain.I’dratherfeedmyfamilyongreenfoodthanothervegetablesbecausetheyaregrownwithoutchemicalfertilizers.C:Butthepriceistooexpensive!I’dprefertobuygoodfoodifIcanaffordit.F:Well,letmeexplain.I’drF:Thisisgoodvalueformoneybecauseyou’llhavehealthierchildren.Theywon’thavetogotothedoctorsooftenandyouwon’thavetotaketimeoffwork.Inthelongrunyou’llbebenefit.C:CertainlyI’dliketobuywhatissafeandhealthy.PerhapsI’lltrysomeofyourvegetablesandiftheyareasgoodasyousay,I’llbebacknextweek.F:ThisisgoodvalueformoneWritingBuythebestfruitshere

Weonlysellgreenfoodinthisshop!Bestchoiceatbestprice!Safe,healthy,clean,fresh.Farawayfromanypollution.MainheadingThisexplainsthatyousellgreenfood.WritingBuythebestfruitsher1.Nochemicalfertilizer,allorganicfertilizers2.Cleanair,cleanwater3.Nopoison,nopesticides4.HomeinheavenReasonstobuy1.Nochemicalfertilizer,allHealthyfoodmeanshealthylife.Farawayfromdiseases,withoutworries,fullofhappiness.(onereason)Whyitisgoodvalue.HealthyfoodmeanshealthylifSomeEnglishfarmingproverbsHewhodoesnotriseearlyneverdoesagoodday’swork.

起床不早,一天的工作干不好。Gotobedwiththelambandrisewiththelark.隨羔羊就寢,與云雀同起。SomeEnglishfarmingproverbsHAbarley-cornisbetterthanadiamondtoacock.對一只公雞來說,一顆麥粒優(yōu)于一顆鉆石。ThecuckoocomesinApril,andstaysthemonthofMay;singsasongatMidsummer,andthengoesaway.

布谷鳥,四月來,五月一直在,仲夏唱歌，然后就離開。Abarley-cornisbetterthanaAlwaystakeoutthemeal-tub,andneverputtingin,sooncomestothebottom.取糧不儲(chǔ)糧,桶底糧光光。Nomill,nomeal.

不磨面就沒有飯吃。Sownothing,reapnothing.

春不播,秋不收。Alwaystakeoutthemeal-tub,Homework1.Writeasummaryoftheadvantagesoforganicfarmingandthedisadvantagesofchemicalfarming.2.Collectsomeinformationaboutthesafetyandimportanceofgreenfood.Homework1.WriteasummaryofUnit2WorkingthelandUsinglanguageUnit2Wordspreviewchemicalproductionbacteriapestnutritionmineraldiscoveryadj.化學(xué)的;關(guān)于化學(xué)的n.生產(chǎn);制造n.細(xì)菌n.害蟲;害獸;害鳥n.營養(yǎng);滋養(yǎng);食物n.礦物;礦石n.發(fā)現(xiàn);發(fā)覺Wordspreviewchemicaladj.化學(xué)的;focussoilreducerootskimunderlinesummarycommentn.焦點(diǎn);中心點(diǎn)vt.集中;聚焦n.土壤vt.減少;減縮n.根;根源vt.瀏覽;略讀vt.畫底線標(biāo)出;強(qiáng)調(diào)n.總結(jié);摘要;概要n.評論;議論vi.&vt.表達(dá)意見;

做出評論focusn.焦點(diǎn);中心點(diǎn)Expressionspreviewbuildupleadtofocusonkeep…freefrom/of逐漸增強(qiáng);建立;開發(fā)導(dǎo)致;造成(后果)集中(注意力,精力等)于使…免受(影響,傷害等)；使…不含(有害物)Expressionspreviewbuildup逐Itisfertilizer.

Whatisthesubstanceweputonthesoiltomakecropsgrow?Itisfertilizer.WhatistheHowmanykindsoffertilizersdofarmersuse?Twokinds.Theyarechemicalfertilizersandnaturalones.HowmanykindsoffertilizersOrganicFarmingOrganicFarmingchemicalfertilizer

cowdung用化學(xué)肥料和有機(jī)肥料的區(qū)別:chemicalfertilizercowdung用化ReadingCHEMICALORORGANICFARMING?ReadingCHEMICALORORGANICFARB.Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.A.Problemscausedbychemicalfertilizers.Themain

ideaofeachparagraphP1.P2.D.Farmersandcustomersturntoorganicfarming.C.Othermethodstokeepthesoilfertile.

P3.P4.B.Long-termuseofchemicalfeChemical

farmingstopcropdisease

increase

productiondamagethelandby

killing…affect

cropsby

staying…leadtocancer/illnessesby

building

up…h(huán)ave

lessnutritionbygrowingtoofastCarefulReadingChemicalfarmingstopcropdamaOrganic

farmingusenaturalwastemake

the

soil

rich

inmineralschange

the

cropputmineralsbackintosoil,making…plantcropswithdifferentrootsusedifferentlevelsoflandplant

grassbetweencropsprevent…from…,anaturalfertilizerOrganicfarmingusenaturalwa1.WhichstatementisWRONGaccordingtothetext?A.Allcropsareorganic.B.Recently,theterm“organicfarming”hasgainedanothermeaning.C.Allfarmersusefertilizers.D.Scientistsbelievesomechemicalfertilizersarebetterforpeople.Choosethebestanswer.

D1.WhichstatementisWRONGCho2.Whichisnotthereasonwhyorganicfarmersprefernaturalwastefromanimals?A.Itcankeepthefoodfreefromchemicals.B.Itcankeeptheair,soilandwaterfreefromchemicals.C.Itcankillharmfulpests.D.Itcanmakethesoilricherinmineral.C2.Whichisnotthereasonwhy3.Whatistheadvantageofusingchemicalfertilizers?A.Leavingchemicalsinthegroundforalongtimeisgoodforwatersupply.B.Theycangetthesoilexhausted.C.Theycankillhelpfulbacteria.D.Theycankillharmfulpest.D

3.Whatistheadvantageofus4.Theorganicfarmersdothefollowingsexcept______.A.addingfertilizerswhichisrichinmineralB.changingcropseverytwoorthreeyearsC.plantingseedsindifferentlayersofthesoilD.plantinggrassbetweencropstopreventthesoilfrombeingblownawayA

4.Theorganicfarmersdothe1.Thesechemicalsinthefoodsupply

buildupinpeople’sbodiesovertime.build

up

增強(qiáng);建立;開發(fā)

Hardworkingconditionsbuildupcharacter.艱苦的工作條件能磨練人的性格。LanguagePoints1.Thesechemicalsinthefood2.Manyofthesechemicalscanlead

to

cancerorotherillnesses.lead

to:導(dǎo)致;造成Toomuchworkandtoolittlerestoftenlead

toillness.

過量的工作和過少的休息會(huì)引起疾病。Allroadslead

toRome.

條條大道通羅馬。2.Manyofthesechemicalscan3.Theyfocus

onkeepingtheirsoilrichandfreeofdisease.focus

on:集中(注意力,精力等)于Youshouldfocusyourattentiononyourwork.把注意力集中在你的工作上。

Olympus:Focus

onlife.奧林巴斯:瞄準(zhǔn)生活。3.Theyfocusonkeepingtheir4.

reduce

v.

減少,降低e.g.公司盡力通過減少花銷來提高利潤。Thecompanytriestoincreaseprofitsby_______________.今年我們已經(jīng)減少了業(yè)務(wù)開支。We______________expensesthisyear.reducing

costshave

reduced4.reducev.減少,降低red5.Thisalso

keeps

theair,soil,waterandcropsfree

fromchemicals.

keeps…freefrom/of:

使…免受(影響,傷害等);使不含(有害物)Weputourbooksinbookcasetokeep

themfreefromdust.Youmusttakecaretokeepthewoundfreefromthedirt.5.Thisalsokeepstheair,so[拓展]1)keep

…from:

隱瞞,不把……告訴(某人)阻止,避免”如：Hewon’tbeabletokeepthetruthfromhisfather.Youcan’tkeephimfromdoingthatthing.2)free

from:

使解除,使擺脫如：Theyaimtofreethestudentsfromtoomuchhomework.3)befree

of

sb/sth:

擺脫某人/某物I’mfree

ofthatjobatlast.[拓展]Expressions

1.化肥2.對…造成損害3.洗掉某物4.導(dǎo)致;造成(后果);通往5.逐漸增強(qiáng),建立6.另外(還有)7.使…免受(影響);8.集中(注意力、精力)于9.每隔幾年10.避免做…chemicalfertilizerscause/dodamagetowashoffleadtobulidupinaddition(to)keep…freefrom/offocusoneveryfewyearsavoiddoingExpressions1.化肥chemicalfertExercises

cause/dodamageto,washoff,leadto,bulidup,inaddition(to),keep…freefrom/of,focuson,avoiddoing1.Hismistakes______hisfailure.2.Thesechemicalsinthefoodsupply________inpeople’sbodiesovertime.3.Allroads_______Rome.4.

Please_____yourmind___

thefollowingproblem.5.Childrenshould________________violence.led

tobulid

upfocusonlead

tobekeptfreefromExercisescause/dodamageto,6.Helikesbasketball.___________,helikesfootball.Helikesbasketball_____________football.7.LittleTomstuckto________themud____hisshoesbyhimselfbeforehecamein.8.Itriedto______________(meet)himbecausehealwaysboresme.9.ThestormonMay3___________great__________peopleinBurmasofar.cause/dodamageto,washoff,leadto,bulidup,inaddition(to),keep…freefrom/of,focuson,avoiddoingIn

additioninadditionto

washingoffavoidmeetinghas

causeddamage

to6.Helikesbasketball.______新人教版高中英語必修4_unit2_Using_language課件Thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday.1Asyoulistentothisdialogue,keepinmindwhatyouhavejustreadaboutchemicalfertilizers.Whatisthemaintopicoftheconversation?Listening

Thepossiblebadeffectsofch1.PaulthinksthatCarrieisnottellinghimthetruth.2.Usingchemicalfertilizersalwaysmakesvegetablesemptyinside.TrueFalse2Listentothedialogueasecondtime.Decideifthefollowingstatementsaretrueorfalse,accordingtotheconversation.Giveyourreasons.1.PaulthinksthatCarrieis3.Today’sfruitisnotashealthyforpeopleasfruitfiftyyearsago.4.Eatingmorevegetablesmightnotalwaysbegoodforus.5.Alloftoday’svegetableslookhealthybutinfactarenot.FalseTrueTrue3.Today’sfruitisnotasheaWHAT’SWRONGWITHTHEVEGETABLES?Girl:Hey,Paul,listentothis…amagazinearticleaboutafarmerwhousedtoomuchchemicalfertilizeronhisfields.Whenhisvegetableswerepicked,theywereallfoundtobeempty!ListeningtextWHAT’SWRONGWITHTHEGirl:HeyBOY:Empty?You’rejoking,Carrie…thatcan’tbetrue!Girl:Ididn’tbelieveiteither!Thisarticlesaysthiscanhappensometimeswithvegetableslikecucumbers,carrotsandpumpkins.Thischemicalfertilizermakesthevegetablesgrowfasttolookbigandbeautiful,butthey’reemptyinside!BOY:Empty?You’rejoking,CarBOY:Youknow,I’venoticedthatsometimesmymumbuyscarrotsfromthesupermarketthathavebigholesdownthecenter.Iguessthatmustbefromusingchemicalfertilizers!GIRL:Yeah,that’swhatthemagazinesays!Themainpointofthearticle,though,isn’taboutholesinourvegetables.BOY:Youknow,I’venoticedtIt’stalkingaboutwhythefruitandvegetablesweeattodayaren’tasnutritiousastheonesourgrandparentsate.BOY:What?Mymumisalwaystellingmetoeatmorevegetables,becausethey’regoodforme!GIRL:Yeah,Iknow–mymothersaysthatsamething!Andit’strue-It’stalkingaboutwtheyaregoodforus…buttheproblemisthattheyaren’thealthyenough!Allthesechemicalfertilizers–theykilloffboththebadandthegoodthingsintheground.Thegrounddoesn’thaveenoughvitaminsandmineralsanymoretohelpcropsgrowhealthy.theyaregoodforus…buttheBOY:So…ifourfruitandvegetablesweregrownwithchemicalfertilizers,theymightlookhealthy,butprobablyaren’treallyhealthy?Iguesswe’vegottostopusingsomanychemicalfertilizerstogrowourfood!BOY:So…ifourfruitandvegF=FarmerC=CustomerF:Goodmorning!Wouldyoulikesomeorganiccarrotsthismorning?C:Hmm…They’realittleexpensive!Whatistheadvantageof…?Reading,SpeakingandwritingSampledialogueF=FarmerC=CustomerReadinF:Theadvantageofthesevegetablesisthattheyaregreenfoodsotheyaresafetoeatandgoodforyourfamily.C:Butwhatistheadvantageofhav