人教版英语必修四unit2单词课件.ppt

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1、Unit2WorkingtheLandchemical-industrialForPowerPoint97-2010课前预习chemical化学的，关于化学的orgainic有机的，器官的，组织的fertile肥沃的，富饶的fertilizer肥料，化肥production生产，制造bacteria细菌pest害虫，害鸟buildup逐渐增强，建立，开发leadto导致，造成（后果）nutrition营养，滋养，食物mineral矿物，矿石discovery发现，发觉focus焦点，中心点；集中，聚焦focuson集中（注意力，精力等）于soil土壤r

2、educe减少，减缩keep...freefrom/of使......免受（影响，伤害等）；使.......不含（有害物）soybean大豆root根，根源skim浏览，略读underline画底线标出，强调summary总结，摘要，概要comment评论，议论producer生产者，制片人industrial工业的，产业的新知学习1.chemicaladj.化学的，关于化学的n.化学物质，化学品chemistry化学chemist化学家chemicalelement化学元素2.productionn.生产制造producev.生产，制造；n.农产品p

3、roducer生产商，制造商productn.产品inproduction在生产中，投产outofproduction停止生产3.buildup加大，增强，增多Theirwordsbuiltupmyconfidenceaftertheinterview.建立，开发Byworkinghard,hehasbuiltupagoodreputation.增强......的体质，使更加强壮Youneedmoreproteintobuildyourselfup.4.leadto导致，造成（后果）Eatingtoomuchsugarleadstorottenteet

4、h.通向，通往AllroadsleadtoRome条条大路通罗马。5.focuson集中(注意力，精力等）于......focusone'sattention/energies/mindonsth把某人的注意力/精力/心思集中到......thefocusofattention关注的焦点Youmusttrytofocusyourmindonstudy.Thediscussionfocusonthreemainproblems.6.keep...freefrom/of使......免受（影响，伤害等），使.....不含（有害物）Keepthechildr

5、enfreeofharm.Wemustmakesomemeasurestokeepstudentsfreefromtoomuchhomework.7.commentn.评论，议论makecommentson/uponsth评论某事withoutcomments不必多说nocomment无可奉告v.作出评论，表达意见commenton对......作出评论commentthat评论说......Canyoucommentontheconclusion?短文改错Everymorning,Stevegoestoworkbytrains.Ashehasalon

6、gwaytogothrough,healwaysbuyanewspaperthathelpsmakethetimepassmuchquickly.OneThurdaymorning,heturnedtothepageofsports.Hewantedreadthereportonanimportantfootballmatch.Thereportwassuchinterestingthatheforgottogeton.Herealizedthatwhenhelookedoutofthewindowandsawthesea.Theygotoffatth

7、enextstationandhadtowaitforatraintogoback.Final,hearrivedverylateattheofficeandwerecriticizedbyhisboss.Everymorning,Stevegoestoworkbytrains.Ashehasalongwaytogothrough,healwaysbuyanewspaperthathelpsmakethetimepassmuchquickly.OneThurdaymorning,heturnedtothepageofsports.Hewantedrea

8、dthereportonanimportantfootballmatch.Thereportw