Unit2-Using-Language-公共課課件（二）

M4U2WorkingthelandUsinglanguageHongda:ZhangLuluApril20,2017Rainfallwillincreaseandcropswillgrow.fertilizerHowmanykindsoffertilizersdoyouknow?chemicalfertilizers

natural

fertilizerschemicalfarmingorganicfarmingBetter？Reading&WritingCHEMICALORORGANICFARMING?ReadParagraph1andanswer::1.Whyhavechemicalfertilizersbeensopopularinfarmingoverthepasthalfcentury?2.Whathavescientistsdiscoveredrecently?stop…andincrease…Long-termuseofchemicalfertilizerscancausedamageto…ReadParagraph2andanswer::Howmanyproblemscanbecausedbyusingchemicalfertilizers?First,theycandamage…aswellas….Chemicalsalsostayinthe…and….Inaddition,…growtoofastto….MethodsAdvantages◆Use_______wastefromanimals◆Change____________ineachfieldeveryfewyears◆Plantcropswithdifferentdepthsof___◆Plant_____betweencrops◆makethesoil____inmineralsandmore_____◆put_________________backintothesoil,makingitrichandfertile◆use__________of

soil◆preventwindorwaterfrom_________soilandactas_____________ReadParagraph3&4andfillinthechartnaturalthekindofcropcarrying

awayricherfertileimportant

mineralsOrganicFarmingrootsgrassdifferent

levelsnaturalfertilizerThesamegoal:togrow…andavoid…para1.Anewdiscoveryofscientists.para2.Severalproblemscausedbyusingchemicalfertilizers.para3.

Theadvantagesofusingorganicfarming.para4.

Somemethodstokeepthesoilfertile.ThestructureofthispassageTopic(presentsituation)ProblemsAdvantagesMethods(conclusion)exposition（說(shuō)明文）ConsolidationWriteasummary（60-70words）Whatisagoodsummary?概要寫(xiě)作評(píng)分標(biāo)準(zhǔn)第五檔（21–25points）：1.理解準(zhǔn)確，涵蓋所有要點(diǎn)2.準(zhǔn)確使用相應(yīng)的語(yǔ)法結(jié)構(gòu)和詞匯3.完全使用自己的語(yǔ)言

(60-80W)4.有效地使用了語(yǔ)句間的連接成分，使概要結(jié)構(gòu)緊湊contents(內(nèi)容)language(語(yǔ)言)structure(結(jié)構(gòu))Recently,scientistshavediscoveredthatusingchemicalfertilizersforalongtimecancausedamagetothelandandpeople’shealth.Soorganicfarmingisbecomingmorepopularwithfarmersandcustomers.Organicfarmersprefertousenaturalwasteratherthanchemicals.Besides,manyotherfarmingmethodsareusedtokeepthesoilfertile.Anyway,theirsamepurposeistogrowgoodfoodandavoiddamagingtheenvironmentorpeople’sheal