高一英语人教修订版unit19高一unit19ws.ppt

Unit19 ModernAgriculture 更多资源 Task1 Brainstorming Whatwillyouthinkofwhenyouseetheword agriculture agriculture Step1 water farmer tool field seed machine cotton sugar fish Growthofmajorproducts1991 95comparedwith1986 90percentage 1 Whatisthegraphabout Itisaboutthegrowthofthemajorfarmproductsduringtheyear1991 95comparedwiththatof1986 90 2 Whatisshownonthex axisandy axis Onthex axis themajorfarmproducts Onthey axis thepercentagesofgrowth 3 Whichfarmproductgrewmostduringthefirstfiveyearsofthe1990s Fruit 4 Howmuchdiditgrowcomparedwiththatduringthelastfiveyearsofthe1980s 90percent 更多资源 5 Whichfarmproductgrewleast Grain 6 Ifthreemillionpigs sheepandcattlewereraisedduringtheyearsfrom1986to1990 howmanywereraisedfrom1991to1995 4 9million 3 FurtherdiscussionWhatconclusioncanyoudrawfromthegraph Peopleeatmoremeatbecauseof Peopleeatmorefishbecauseeatingfishdoesn tmakethemas aseatingmeat Peoplehaveabetterknowledgeofhealthydietsotheyeatmore Leadto Thechangingeatinghabits beingrich fat fruit Thechangingeatinghabits Haveeffectson Agricultureandnature Suchas Needtoraisemore pigs Needtogrowmore grain Needmore inwhichtoraisefish fishponds Growmorefruittreeswhichwillbearmorefruits Cutdownforests burngrass usechemicals Task4Pre listening Agriculturedependson Question Ifwechangedthestructureofagriculture whatdoyouthinkwillhappentothenature weather climate places othernaturalresources water Floodsordroughts soilerosion Listentothetape Thepassageyouheartalksabout historyoffarming protectionofnature environmentalproblems farmersinAmerica farmersinChina trees fishing pigs dikes 2Whichofthefollowingsentencesaretrue T andwhicharefalse F 1InearlytimesfarmersinChinamovedaroundandburntforests AllfarmersinSouthAmericaburnforeststocreatefarmland Floodsanddroughtsaredisastersthatfarmerscannotstop 4SomeofthelandinChinaistoowettogrowcrops 5Fishfarmersdamagenature T F F T F don tdamagenature Some can 3Listentothetapeandcompletethesentencesbyusingyourownwords Whenfarminggoesagainstnature problemsaretheresult Theearliestfarmers nature Theirwayofagricultureledto and Itisanoldtruththat shouldnot nature ThelandthatTanandXiaoZaoboughtwastoo andcouldnotbeusedfor insteadtheychangedthefieldsinto Ontheirfarmtheykept andgrew environmental destroyed floods droughts farming goagainst wet farming growingcrops fishponds fish ducks chickens fruittrees Listeningtext Farmingandnatureareliketwoflowersonthesametree Whenfarminggoesagainstnature allkindsofenvironmentalproblemsaretheresult Inancienttimes whenpeoplebeganusingtheland farmingwasnotasitistoday Earlyfarmersmovedaroundthecountry Theyburntapartofaforestandusedthislandforoneortwoyears Whentheycouldnolongergrowcropsonthelandtheymovedonandrepeatedthissomewhereelse Agricultureinthiswaydestroysnatureandresultsinfloodsanddroughts SomepeopleinSouthAmericastillpractisethiskindoffarming Overthepasttwentytotwenty fiveyears farmershaverecognisedsomeoldtruths alreadyknowntoancientChinesefarmers Farmingshouldnotgoagainstnature Ifthesoilistoopoor chemicalscanhelpimproveitandgrowbettercrops butthismaydamageordestroylandsurroundingthefarms Instead farmersshouldlookforothermethods Intheearly16thcentury brothersTanandXiaoZaoofJiangsuProvincecheaplyboughtfieldsalonglakesnobodywantedbecausetheyweretoowet Theybuiltdikesaroundthefieldsturningthefieldsintofishpondsandtheybecamefishfarmers Theyalsoplantedfruittreesonthedikesandkeptchickensandducks Theywereverysuccessfulfarmers WorkbookPage107 1 WhatisHelen sjob 2 Whatdoyouthinksheisgoingtodo 3 Whatwouldshebedoingeverydayinherjob Sheis probably afishwoman Ithinksheisgoingtoopentheboxesandfeedthefish Or Ithinksheisonherwaytothemarkettosellthefish 1 gooutintheboatandseeifanythingiscaughtinthenets2 bringinthefishandthrowoutthenetsforthenextcatch3 thefishmustbebroughttoland 4 Thefishshouldbekeptinbigboxesfullofwater sotheydon tdie 1 Wefeedthe 2 We thetanks 水箱 3 Weget outofthebestofthe 4 Whenthe arebigenough weputthemin inthesea 5 Whenthe havegrowntotherightsize we them freezethemor them 6 Wetakethembytrucktothenearest fishtwiceaday produceourownfishfromeggsin theeggs largefish fish cages fish harvest smoke market Whydotheyhavetotiethecagestotherocksonthebottomofthesea Whydotheysmokeorfreezeallthefish 3 Whydotheyburntheirownwood 4 Whydotheysmoketheirfishthemselves Thecageshavetobetiedtothebottomoftheseabecauseitiswindy Becausethefishfarmisalongwayfromthenearestmarket Becauseinthatwaytheygetagoodstrongsmoke Becausetheygethigherpricesforsmokedfish Listeningtext Hello myname sHelenandIliveonthewestcoastofCanada Iworkonafishfarm RightnowI mfeedingthefish whicharekeptincagesinthesea Thecagesaretiedtotherocksonthebottomofthesea Itcangetverywindyhere TwiceadayIputthefishfoodintheboatandgoouttothecages Thefisharealwayshungry Whenthefishhavegrowntotherightsize wepullthecagesoutofthewater Thefisharekilledandcleaned Ourfishfarmisalongwayfromthenearestmarket Soweeitherfreezethefishorsmokethem Wedon tsaltanyfishhere Somefishfarmsdo butwedon t Threeofusworkhereandthere salwaysalottodo Insidethatbuildingovertherewehavetanksfortheyoungfish Weproduceallourownfishfromeggs Thefishstarttogrowinfreshwater Then whentheyarebiggertheygointothesea whichissalty ofcourse There salwaysalotofworktodo feedingthefish cleaningthetanks gettingeggsoutofthebestofthelargefish harvestingthefish cleaningthemandsmokingthem Weburnourownwoodandthatwa