山東省英語(yǔ)高中人教版學(xué)案 必修四Unit 2 Woking the land usinglanguage(教師版)

教學(xué)內(nèi)Learningaims:知識(shí)與能力：tomastersomesentencepatternsofthetextandknowthedifferencesbetweenchemicalfarmingandorganicfarming過(guò)程與方法：Furtherunderstandthepassage情感態(tài)度價(jià)值觀：toenjoythepleasurestudyLearningkeypoints:toknowsomethingchemicalfarmingandorganicfarmingLearningdifficultpoints:toknowsomethingaboutchemicalfarmingandorganicfarming【學(xué)案使用說(shuō)明】熟讀單詞，為課文閱讀做好準(zhǔn)備2）分鐘閱讀課文，了解大意并完成練習(xí)題（自主學(xué)習(xí)及合作探究的題目）【前習(xí)】沖洗掉2）集中（注意力、精力）于3）每隔幾年4）對(duì)造成傷害5）逐步增強(qiáng)，建立6）導(dǎo)致造成(后果);通往7）另外，而且8）轉(zhuǎn)向9）使免受影響、傷害等10）減少疾病11化肥12阻止土壤流失13增加產(chǎn)量14富含營(yíng)養(yǎng)15進(jìn)入農(nóng)作物內(nèi)部16)有用的細(xì)菌和害蟲(chóng)17）有機(jī)農(nóng)作物18）避免做某事：（vt./n.遺憾.惋惜（adj.后悔的遺憾（adv.后悔地）2.adj.化學(xué)的n.化學(xué)藥）（學(xué)家劑師）（n.化學(xué)）3.production（生產(chǎn)、制造（生產(chǎn)、制造（產(chǎn)品、產(chǎn)物）

學(xué)指即感

習(xí)導(dǎo)時(shí)悟4.nutrition（n.營(yíng)養(yǎng)）

（adj.有營(yíng)養(yǎng)的）

My5..summary（總結(jié)、摘要）（vt.結(jié)、概括）

questi6.discovery(n.發(fā)現(xiàn)、發(fā)覺(jué)-

（vt.發(fā)現(xiàn)）

onsin【主合探】ⅠTask1:（一）theideaofeachpara1:Severalproblemscausedbyusingchemicalfertilizers.para2:Somemethodskeepthesoilfertile.para3:Anewdiscoveryofscientists.para4:Theadvantagesofusingorganicfarming.（二）Answerfollowingquestions:1.Whyarechemicalfertilizerspopularinfarmingtoday?________________________________________________________2.Readparagraph2andfindouttheproblemscausedbyusingchemicalfertilizers.______________________________3.Readparagraph3-4andanswer:Whataretheadvantagesoforganic

thisclass_____________

farming?_____________________________________________________ⅡTask21.focusvt.&vi.集中(注意力)；聚焦n.焦點(diǎn)；中心點(diǎn)focuson集中于1).Focusyourcamera.把照相機(jī)的焦距調(diào)準(zhǔn)。2).Herbeautymakesherthefocusofattention._____________________________(短語(yǔ))___________________________________集中注意力/思/力)于3).Alleyes______________集中于)her.2.buildup逐漸建立；逐漸增強(qiáng)體質(zhì)；積累；開(kāi)發(fā)1).Youneedmoreproteintobuildyouup.你需要增加蛋白質(zhì)以增強(qiáng)體質(zhì)。2).Heisnowtryingto__________________他正在努力逐步贏得好的聲譽(yù)。【堂標(biāo)Inthepast,farmerswelcomed__________fertilizersstopcropdiseaseandincrease____________.However,Recently,scientistshavebeenfindingthatmany_________cancausedbythem.First,theydamagethelandbykillingthehelpful________andpests.Thesechemicalsgetinsidethecropsandcannotjustbe____________,which___________inpeople’sbodiesovertimeandcan__________cancerorotherillnesses.Withthese__________,peoplearebeginningtoturnto_________farming,Whichfocusonkeepingtheirsoilrichandfreeofdiseasesandalso______thesoil,waterandcrops______________chemicals.Organicfarmersalsousemanyothermethodstokeepthesoil_______.Thesemanydifferentorganicfarmingmethodshavethesamegoal:togrowgoodfoodandavoid_________theenvironmentpeople’shealth.【結(jié)升1.Thenewmodelwillgointop________nextyear.2.Becauseofhispoorn_______,hehasgrownweakerandweaker.3.Thosecountriesarerichin_______礦物的)resources.4.Newscientificd_________beingmadeeveryday.5.Thegroupproducesmonthly________摘要)oftheirresearch.6.Wemust______ourexpensesto300yuanmonth.【展伸做《優(yōu)化》P32答案：Tanicfarming18.avoiddoingTduceproduct4.nutritious5.summarize6.discover自主合作探究

I．para12①②Manyfarmerswelcomedthemasagreatwaytostopcropdiseaseandincreaseproduction③Therearethreeproblems.First,theydamageaswellas….Theyalsostayintheand….Inaddition,…growtoofastto④farmersfocusonkeepingtheirsoilrichandfreeofdiseaseandkeepingair,soil,waterandcropsfreefromchemicals.II她的美麗使她成為了焦點(diǎn)。foc