高中英语Unit2WorkingthelandSection3UsingLanguage课件新人教版

Unit2WorkingthelandSectionⅢUsingLanguage2合作探究3巩固提升4课时作业1自主预习自主预习•Ⅰ.单词速记•1．________(n.)营养；滋养；食物•2．________(vt.)画底线标出；强调___________(adj.)画线的•3．________(n.)总结；摘要；强调___________(n.)强调，总结•4．________(n.)评论；议论(vi.&vt.)表达意见；作出评论•5．________(vt.)使迷惑；使为难→confusing(adj.)令人迷惑的•→confused(adj.)感到迷惑的→confusion(n.)迷惑nutritionunderlineunderlinedsummarysummarizecommentconfuse•6．________(vt.)遗憾；惋惜(n.)遗憾；懊悔→regretful(adj.)后悔的•7．________(adj.)化学的；关于化学的→chemistry(n.)化学•8．____________(n.)生产；制造→produce(v.)生产•9．discover(vt.)发现→__________(n.)发现；发觉•10．________(vt.)减少；减缩→reduction(n.)减少regretchemicalproductiondiscoveryreduce•Ⅱ.短语互译•1．对……造成损害______________•2．洗掉________•3．逐渐增强；建立；开发________•4．导致；造成(后果)________•5．turnto________•6．focuson__________________________•7．keep...freefrom/of...____________________________•_____________________•8．prevent...from...______________causedamagetowashoffbuildupleadto转向集中(注意力、精力等)于使……免受(影响，伤害等)使……不含(有害物)阻止……做……•Ⅲ.课文理解•First略读主旨•1．Matchthegeneralideaofeverypart.•Part1(Para.1)________•Part2(Para.2)________•Part3(Paras.3&4)________•A．Farmersandcustomersturntoorganicfarmingandhowfarmerskeeptheirsoilrich.•B．Scientistshavefoundthatchemicalfertilizerscausedamagetothelandandpeople'shealth.•C．Someoftheproblemscausedbychemicalfertilizers.BCA•2．Whatdoesthepassagetellus？•Sincechemicalfertilizershavecaused________，farmershaveturnedto_______________using______________tokeepthesoilrich.damageorganicfarmingnaturalwaste•Second细读细节•1．Fromthepassage，wecanseeorganicfarmersarethosewho________.•A．growcropswithchemicalfertilizers•B．growcropswithnaturalfertilizers•C．produceorganicfertilizers•D．carefortheenvironmentB•2．Fromthefourthparagraph，weknowthat________.•A．it'snotgoodtoplantgrassbetweencrops•B．peanutsusetheground'ssurface•C．peasandsoybeansshouldbegrowntogetherwithcornandwheat•D．vegetablesthatputdowndeeprootsareharmfultothesoilB•3．Accordingtothetext，whichofthefollowingisNOTtheproblemcausedbychemicalfertilizers？________•A．Cropdiseasescanbestopped.•B．Chemicalsstayinthegroundandundergroundwaterforalongtime.•C．Thehelpfulbacteriaandpestsarekilledaswellastheharmfulones.•D．Manyofthesechemicalsaredangeroustopeople'shealth.A•Third精读语篇•Recentlyscientistshavefoundthat1.______________useofchemicalfertilizerscancause2.________tothelandand，evenmoredangerous，topeople'shealth.Sosomefarmersandmanycustomersarebeginningtoturnto3.________farming.Organicfarmingissimplyfarmingwithoutusingany4.___________.long－termdamageorganicchemicals•Organicfarmersfocusonhowtohaveahealthysoilwhichcan5.________diseaseandhelpcrops6.________strongandhealthy.Theypreferusingnatural7.________fromanimalsasfertilizer，whichwillmakethesoilintheirfieldsricherin8.___________andalsokeeptheair，soil，waterandcropsfreefromchemicals.Tokeepthesoilfertile，theyalsousemany9.________methods，suchaschangingthekindofcropineachfieldeveryfewyears，10.__________cropstousedifferentlevelsofsoilandsoon.reducegrowwastemineralsotherplanting合作探究•①Itisimportanttoexplainthisagainorwewillconfusethestudents.•再次对此作出解释是很重要的，否则我们会让学生感到迷惑的。•②Youmustbeconfusingmewithsomeoneelse.•你一定是把我和其他什么人搞混了。•③(2018·江苏高考)Forexample，therearehugeamountsofreferencebookswhichIamoftenconfusedtochoosefrom.•例如，这里有很多参考书我经常困惑的不知如何选择。1．confusevt.使迷惑；使为难重点词汇G归纳拓展(1)confuseAwithB把A与B混淆(2)confusedadj.(人)不知所措的；困惑的beconfusedabout...对……感到困惑(3)confusingadj.(事/物)令人困惑的；难懂的(4)confusionn.混乱；困惑Moststudentsareconfusedabouttheconfusingproblem.很多学生对这个令人困惑的问题感到困惑。Q巧学助记语境巧记confuseFromhisconfusedexpression，thestudentisconfusedabouttheconfusingproblem.从他困惑的表情看，这个学生对这个令人困惑的问题感到困惑。•根据句意用confuse及其派生词的适当形式填空。•①Shealways______________Johnwithhistwinbrother.•她总是把约翰和他的孪生兄弟分不清楚。•②Someonehas________allhispapersonhisdesk，andhewasannoyedwiththe__________.•有人把他桌上的文件弄乱了，他对这一片混乱感到恼怒。•③Thesituationis_____________toallofus.•形势使我们大家都感到迷惑了。•④Theywere___________aboutthepresentsituation.•他们对当前的形势感到困惑。J即时巩固confusesconfusedconfusionconfusingconfused•(1)vt.遗憾；惋惜•①Amanwithoutalongheadwouldregretwhathehasdone.•无远见的人将后悔自己所做的事。•②Ihaveregrettedhavinglefttheworkunfinished.•这件工作我没有做完，感到有些遗憾。•(2)n.遗憾；懊悔•Ideclinedwithmuchregretyourkindinvitation.•很遗憾，我不能接受您的盛情邀请。2．regretQ巧学助记Z知识拓展(1)regrethavingdone/doingsth.后悔做了某事regrettosay/tell/inform...that遗憾地说(告知)……regretthat＋从句遗憾……(2)toone'sregret让某人感到遗憾的是withgreat/deepregret很遗憾Weregrettoinformyouthatwecannothelpyou.我们很遗憾地通知您，我们无法帮助您。•单句语法填空•①Ideclinedyourkindinvitation________greatregret.•②Much______myregret，Ican'tacceptyourinvitation.•③Iregret________(tell)youthatyourproblemsarebeyondmypower.You'llhavetoturntosomeotherone，I'mafraid.•翻译句子。•④他后悔没有采纳她的建议。•Heregrettednotfollowheradvice.J即时巩固withtototell•(1)n.焦点；中心点•①I'msotiredthatIcan'tfocusonanythingtoday.•今天我太累了，精神集中不起来。•②(2017·天津高考卷)Myfund－raisingfocusalsogavemenewmotivationtoexerciseregularly.•我的募集资金的焦点也给了我新的激励，让我定期锻炼。•③There'sanewfrontierin3Dprintingthat'sbeginningtocomeintofocus：food.•这里有一个开始成为焦点的3D打印的新前沿：食物。3．focus•(2)vt.集中；聚焦•①Shealwayswantstobethefocusofattention.•她老想成为人们注意的中心。•②(2017·全国高考卷Ⅱ)Wewererespectfulofcraft(技艺)andfocusedondiggingintothecharactersweweregoingtoplay.•我们尊重技艺而且集中