英語(yǔ)必修四人教版Unit 2 Working the land using language教案

.@:Period4Chemicalororganicfarming?Teachinggoals1.Languagegoals語(yǔ)言目的A重點(diǎn)詞語(yǔ)mineral,reduce,supply,organic,level,whatever,bacteria,referto,yearafteryearB重點(diǎn)句型:Thereare8sentenceswith–ingassubj.orobj.2.Abilitygoals才能目的EnableSstomasterthemainideaofthetextandknowthewaysoforganizingarticles.3.Learningabilitygoals學(xué)能目的Helpstudentslearnhowtoenlargethewordsandknowthewaysofthesametopic.A.Teachingimportantanddifficultpoints1.Howtograspthemainideaofthepassage.2.Howtograspthewordsandphrasesandbeabletousethemofthesametopic.B.TeachingmethodsShowquestions,readfast,findthemainideacarefullyandfinishallthetasks.C.Teachingaids:Arecorderandaprojector.D.Teachingprocedures&waysLearningnewrelatedwordsandexpressions.Chemicaladj.化學(xué)的；關(guān)于化學(xué)的Productionn.消費(fèi)；制造Bacterian.細(xì)菌Pestn.害蟲；害獸；害鳥Nutritionn.營(yíng)養(yǎng)；滋養(yǎng)；食物Mineraln.礦物；礦石discoveryn.發(fā)現(xiàn)；覺(jué)察Focusn.焦點(diǎn)；中心點(diǎn)vt.集中；聚焦Soiln.土壤Reducevt.減少；減縮Rootn.根；根源skimvt.閱讀；略讀Underlinevt.畫底線標(biāo)出；強(qiáng)調(diào)Summaryn.總結(jié)；摘要；概要Commentn.評(píng)論；議論vi.&vt.表達(dá)意見;做出評(píng)論buildup逐漸增強(qiáng);建立;開發(fā)leadto導(dǎo)致;造成〔后果〕focuson集中〔注意力，精力等〕于keep…free使…免受〔影響，傷害等〕；from/of使…不含〔有害物〕2.Readingandanswering:〕Whatisthemainideaofthispassage?Thispassagetellsussomethingaboutorganicfarming.Itmeansgrowingcropswithoutchemicalfertilizerswhichdamagethesoil.Theorganicfarmerskeepthesoilrichandhealthyinseveralways.2.〕Whyarechemicalfertilizerssopopularinfarmingtoday?Theyareagreatwaytostopcropdiseaseandincreaseproduction.3.〕Whatproblemscanbecausedbyusingchemicalfertilizers?Theycandamagethelandbykillinghelpfulbacteriaandpetsandbystayinginthegroundandundergroundwaterforalongtime,Theydamagepeople'shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.4.〕Whatisorganicfarming?Organicfarmingmeansgrowingcropswithoutusinganychemicals.5.〕Whatisthemainreasonforusingorganicfarmingmethods?Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealth.3.Findandwritedownthemethodsandadvantagesinthepassage.4.Languagepoints:1〕Thesechemicalsinthefoodsupplybuildupinpeople’sbodiesovertime.buildup

增強(qiáng);建立；開發(fā)Hardworkingconditionsbuildupcharacter.艱辛的工作條件能磨練人的性格。2〕Manyofthesechemicalscanleadtocancerorotherillnesses.leadto:導(dǎo)致；造成Toomuchworkandtoolittlerestoftenleadtoillness.

過(guò)量的工作和過(guò)少的休息會(huì)引起疾病。AllroadsleadtoRome.

條條大道通羅馬。3〕Theyfocusonkeepingtheirsoilrichandfreeofdisease.focuson:集中〔注意力，精力等〕于Youshouldfocusyourattentiononyourwork.

把注意力集中在你的工作上。Olympus:Focusonlife.

奧林巴斯：瞄準(zhǔn)生活。4〕Thisalsokeepstheair,soil,waterand