高中英语 Unit 2 Working the land Section 3 Using Language课件 新人教版必修4.ppt

workingtheland unit2 section usinglanguage 栏目导航 scanthetextandchoosethebestansweraccordingtothetext 1 whichstatementiswrongaccordingtothetext a allcropsareorganic b recently theterm organicfarming hasgainedanothermeaning c allfarmersusefertilizers d scientistsbelievesomechemicalfertilizersarebetterforpeople 答案 d 2 whichisnotthereasonwhyorganicfarmersprefernaturalwastefromanimals a itcankeepthefoodfreefromchemicals b itcankeeptheair soilandwaterfreefromchemicals c itcankillharmfulpests d itcanmakethesoilricherinminerals 答案 c 3 whatistheadvantageofusingchemicalfertilizers a leavingchemicalsinthegroundforalongtimeisgoodforwatersupply b theycangetthesoilexhausted c theycankillhelpfulbacteria d theycankillharmfulpest 答案 d 4 theorganicfarmersdothefollowingsexcept a addingfertilizerswhichisrichinmineralsb changingcropseverytwoorthreeyearsc plantingseedsindifferentlayersofthesoild plantinggrassbetweencropstopreventthesoilfrombeingblownaway答案 a readthetextcarefullyanddecidewhetherthefollowingstatementsaretrueorfalse 1 themainideaofthetextisthatchemicalfertilizerisbetterthannaturalfertilizer 2 organicfarmerspreferusingnaturalwastefromanimals 3 farmersoftengrowthesamecropsyearafteryear 4 organicfarmingreferstocropsgrowingwithbothnaturalandchemicalfertilizers 5 ahealthysoilreducesdiseaseandhelpscropsgrowstrongandhealthy f t f f t readthetextcarefullyandanswerthefollowingquestions 1 whatis organicfarming 答案 organicfarmingmeansgrowingcropswithoutusinganychemicals 2 whatdoorganicfarmersprefertouseasfertilizer 答案 thefertilizerthatorganicfarmerspreferisnaturalwastefromanimals 3 whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat 答案 farmersgrowpeasorsoybeansaftercornorwheatsothatpeasandbeanscanputmineralsbackintothesoil makingitrichandhealthyandreadytogrowmorewheatorcorn 4 whatistheadvantageofusingnaturalfertilizer 答案 itmakesthesoilricherinmineralsandsomorefertile andreducesdiseasesincropsandhelpthemgrowstrongandhealthy besides itkeepstheair soilandwateraswellasthefoodsupplyfreefromchemicals 5 whyarechemicalfertilizerssopopularinfarmingtoday 答案 theyareagreatwaytostopcropdiseasesandincreaseproduction translatethefollowingsentencesfromenglishintochinese 1 itseemsastrangenamesinceallcropsareorganicnomatterhowtheyareproduced 答案 这个名字看起来有些奇怪 因为所有的农作物 无论如何生产出来的 都是有机物 2 theyoftenchangethekindofcropineachfieldeveryfewyears forexample growingcornorwheatandthenthenextyearpeasorsoybeans 答案 在同一块地里 他们经常每隔几年就换种农作物 例如种玉米或小麦后来年再改种豌豆或大豆 3 someorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil 答案 一些有机耕种的农民愿意在庄稼中间种些草来阻挡风或防止水土流失 point focus 1 v 将 注意力等 集中于 某事物 使集中于焦点 调节 眼睛 透镜等的 焦距 定 的焦点 考点一单词点击 focus sth onsth 使某事物 集中 于一点 focusone sattention mind effortsonsth 集中注意力 精力于 concentrate center fix on 把 集中于 themeetingswillfocusontheglobaleconomicrecovery 本次会议将主要关注全球经济复苏问题 ifyoufocusthesun sraysondrywoodwithaburning glass itwillstartburning 如果你用取火镜使太阳光线聚焦在干木头上 木头就会燃烧起来 hefindsithardtofocushisthoughtsononethingforlongerthanfiveminutes 他发现他很难把注意力集中在一件事上超过5分钟 weneedtofocuspublicattentiononthisissue 我们需要把公众的注意力聚焦在这件事上 2 n 光 声等的 中心点 源 焦点 焦距 聚焦 调焦或调焦的装置 活动的中心 使人感兴趣的所在 常作单数 thefocusofattention关注的焦点thefocusoftheargument议论的中心 thefocusonmycameraisn tworkingproperly 我的照相机上的调焦装置有毛病 intonight sprogramme ourfocusisongermany 在今天晚上的节目中我们重点介绍德国 单句语法填空 1 focus onthisaspectfirstwillgiveyouabetterunderstandingofhowandwhythingsarecurrentlyastheyare 解析 句意 首先聚焦在这个方面将使你懂得事情是如何到今天这个层面的 以及为什么它们是这样的 focusing 2 hesuggeststhatwe focus onmakingsurethatwehavegoodworkingrelationshipsandcommunicationsothatwedon tendupintroubleinthefirstplace 解析 句意 他建议我们应该注意确保我们有好的工作关系和沟通 以使我们不至于一开始就陷入麻烦而终结 单句改错 3 stayfocusingontheconversation andyou llsaveyourselfalotofpotentialproblems 解析 句意 关注对话 你就能避免一大堆潜在问题 过去分词作表语 表状态 should focus focused point reducevt 减少 减缩 降低 1 reducesth by 把 减少了 reducesth to 把某物降到 reduce from tosth todoingsth 使陷入 更坏的 境地 使沦落 2 bereducedto 沦落到 bereducedto10 减少到10 bereducedby10 减少了10 单句语法填空 1 thecustomersaidthathewouldnotbuytheshirtunlesstheprice reduce to 20 2 thesecompanieshaveinvestedinadvancedprocessesthathavedramaticallyimprovedenergyefficiencywhile reduce pollutionandhealththreatstotheworkers 解析 句意 这些公司投资于先进的生产工艺 极大地提高了能源利用率 同时减少了环境污染和对工人健康的威胁 wasreduced reducing 单句改错 3 aloneandunsupported shewasreducedtobegforherliving 解析 句意 孤孤单单 无依无靠 她被迫乞讨为生 句中to是介词 因此后跟动名词 begging point comment 1 n c u 意见 解释 评论 批评 makeacommentonsth 就某事发表评论nocomment s 回答问题时所说 无可奉告 2 v 评论 发表意见 commentabout on that 对 评论 单句语法填空 1 itisgenerallythoughtthatsomepeoplearenotwillingtodoanythingbutenjoycommenting whatothershavedone 单句改错 2 ithinkihadnothingincommonwithjack ididn tcareaboutwhathesaidandnevericommentonwhathedidinfuture 解析 句意 我认为我跟杰克没什么相同之处 我不在乎他说的话 以后也不会对他所做的事做任何评论 on about would 考点二短语诠释 单句语法填空 1 allthepeopleinthestrickenareaarelookingforwardto build upconfidencetorecoverfromthesufferings 2 thankstohiskindnessandagoodrelationshipintheneighbourhood overyearsthemiddle agedman build upagoodbusinessgradually 解析 句意 由于他的友善以及与邻里之间的良好关系 几年以来那个中年人的生意逐渐做得很兴旺 building hasbuilt point leadto导致 造成 后果 通向 leadsb tosp 引导某人去某地leadsb todosth 引导某人做某事leada life过一种 的生活 thiscanleadtosignificantdistress buthavenofear 这可能导致巨大的痛苦 但是不要害怕 whatledyoutoget cometothisconclusion 你是怎样得出这个结论的 单句语法填空 1 poisonedfooddoesgreatharmtoourhealthaswellasourfamilymembers eventually lead tothedecreaseofourqualityoflife 解析 句意 有毒食品对我们和我们家人的健康造成巨大的伤害 最终导致我们的生活质量下降 2 whenitcomestopatience canyouthinkofacasewhereitleads greatsuccess 解析 句意 谈到耐心的时候 你能想到它导致巨大成功的情形吗 leading to keepsb sth fromdoing prevent stopsb sth from 阻止某人做某事 防止某事发生keepsth fromsb 将某事瞒着某人keepawayfrom远离 避开 单句语法填空 1 thecriminalhopedthatthepolicewouldhelpkeephimfree punishmentifhehelpedthepolicetocatchthemurderer 单句改错 2 inthisnewdigitalinformationage howdowekeepfrommisinformed 解析 句意 在这个全新的数字信息时代 怎样才能不受误导呢 from of being 考点三句型归纳 单句语法填空 1 ifyouhaveneverexercisedandwanttostart exercise15 20minutesevery two day it ssomethingthatyoucanachieve 解析 句意 如果你从来不锻炼 而想现在开始 那就每隔一天锻炼15 20分钟 这是你能达到的事情 2 forthebestresults youshouldalternatebetweenyogaandweightliftingevery day suchasonmonday wednesdayandfriday 解析 句意 为了达到最佳效果 你应该每隔一天交替练习瑜伽和举重 例如星期一 星期三 星期五 second other