人教高中英语必修4unit2usinglanguage(共21张)课件.ppt（无音视频素材）

1、Unit 2Working the landUsing language高一人教新课标版必修四高一人教新课标版必修四预习检测1.vt.遗憾，惋惜遗憾，惋惜_ n.遗憾，懊悔遗憾，懊悔_2.v.集中，聚集集中，聚集_ n.焦点（复数焦点（复数 _）3.vt.减少，缩减减少，缩减_ 增加增加 _4.vt.发表意见，作出评论发表意见，作出评论 _ n.评论，议论评论，议论 _5.vt.使迷惑，使为难使迷惑，使为难 _ adj.令人迷惑不解的令人迷惑不解的 _ adj.迷惑的，为难的迷惑的，为难的_ n.混淆，混淆，困惑困惑6.n.生产，制造生产，制造_ vt.生产，制造生产，制造/农产品农产品 _

2、n.产品，产物产品，产物_7.n.发现，发觉发现，发觉_ vt.发现发现 _ n.发现者发现者 _8.n.总结；摘要；概要总结；摘要；概要 _ vt.总结，概括总结，概括 _ ReadingCHEMICAL OR ORGANIC FARMING?It is fertilizer.What is the substance we put on the soil to make crops grow?How many kinds of fertilizers do farmers use?There are two kinds.They are chemical fertilizers and o

3、rganic ones.chemical fertilizer cow dung用化学肥料和有机肥料的区别用化学肥料和有机肥料的区别:Organic FarmingLearning aims:1.Understand the text,especially some long and difficult sentences.2.Learn some words and phrases:confuse regret reduce focus comment build up lead to keep free from/of 每每,每隔每隔 现在完成进行时现在完成进行时 V+ing 作结果状语作

4、结果状语1.Over past half century,use chemical fertilizers has become very commom in farm.2.Recently,however,scientists have been found that long-term use of these fertilizers can cause damage on the land and,even more dangerous,to peoples health.3.First,they damage the land by kill the helpful bacterias

5、 and pests as well as the harmful one.4.This affects crops and,therefore,animals and humans,since chemicals get inside the crops and cannot just washed off.5.These chemicals in the food supply build in peoples bodies over time.6.On addition,fruit,vegetables and other food growing with chemical ferti

6、lizers usually grow too fast to be full of much nutritions.killingbacteriaonesbeupgrownnutritiontheusingfarmingfindingtoIn 7.Organic farmers,therefore,often prefer use natural waste from animals as fertilizer.8.They often change the kind of crop in each field every few year,for example,grow corn or

7、wheat and then the next year peas or soybeans.9.Crops such as peas or soybeans put important minerals back into the soil,make it ready for crops such as wheat or corn what need rich and fertile soil.10.Organic farmers also plant crops to use different levels of soil,for example,plant peanuts that us

8、e the grounds surface following by vegetables that put down deeply roots.usingyearsgrowingmakingfollowedthatplantingdeep1.化肥化肥2.对对造成损害造成损害3.洗掉某物洗掉某物4.导致导致;造成造成(后果后果);通往通往5.逐渐增强逐渐增强,建立建立6.另外另外(还有还有)7.使使免受免受(影响影响);8.集中集中(注意力、精力注意力、精力)于于9.每隔几年每隔几年10.转向，向转向，向求助求助11.避免做避免做chemical fertilizerscause/do dam

9、age towash offlead tobulid upin addition(to)keepfree from/offocus onevery few yearsturn toavoid doing1.His mistakes _ his failure.2.These chemicals in the food supply_ in peoples bodies over time.3.All roads _ Rome.4.Please _ your mind _ the following problem.5.Children should _ violence.led tobuild

10、 upfocusonlead tobe kept free from6.He likes basketball._,he likes football.He likes basketball _ football.7.Little Tom stuck to _ the mud _ his shoes by himself before he came in.8.I tried to _(meet)him because he always bores me.9.The storm on May 3 _ great _ people in Burma so far.In additionin a

11、ddition towashingoffavoid meetinghas causeddamage to补全句子1.I _ her _ her sister because they are so alike.我把她和她妹妹弄混了，因为她们长的太像了。我把她和她妹妹弄混了，因为她们长的太像了。2.They asked me so many _ questions that I got _.他们问了我如此多令人迷惑的问题以致于我都迷惑了。他们问了我如此多令人迷惑的问题以致于我都迷惑了。3.I _(miss)the good film.我后悔没能看那部好电影。我后悔没能看那部好电影。4.I _ t

12、hat you have failed again in the examination.我很抱歉的告诉你，这次你又没考及格。我很抱歉的告诉你，这次你又没考及格。5.Much to my _,I must leave now.非常抱歉，我现在必须走了。非常抱歉，我现在必须走了。6.We announce _ the death of the mayor.我们遗憾地宣布市长去世了。我们遗憾地宣布市长去世了。confused with confusingconfusedregretted missing/having missedregret to tell youregret with regr

13、et7.Production costs have been reduced _ 30%.生产成本降低了生产成本降低了30%。8.The population of this city has reduced _ 1.2 million.这个城市的人口减少到了这个城市的人口减少到了120 万。万。9.All eyes were focused _ the speaker.大家的目光都集中在发言人身上。大家的目光都集中在发言人身上。10.Please _ the following problem.请集中精力考虑以下这个问题。请集中精力考虑以下这个问题。11.He made no comment

14、 _ our proposal.他对我们的建议没有作评论。他对我们的建议没有作评论。12.Can you _ the conclusion?你能对这一结论发表意见吗？你能对这一结论发表意见吗？13.-Will you resign,Minister?-No comment!_bytoonfocus your attention ononcommented on无可奉告！无可奉告！14.What was it that _ say that?是什么导致你那样说的？是什么导致你那样说的？15.This also _ the air,soil,water and crops _ chemicals.

15、这有助于空气、土壤、水和农作物免受化学物质的污染。这有助于空气、土壤、水和农作物免受化学物质的污染。16.She got the ticket _ charge.她免费得到了这张票。她免费得到了这张票。17.I go home _.我每隔一月回家一次。我每隔一月回家一次。18.Because of illness,he _ all day.由于生病，他整天都躺在床上。由于生病，他整天都躺在床上。19.He slipped and fell,_(hit)his head against the door.他摔了一跤，头撞到了门上。他摔了一跤，头撞到了门上。20.I hurried to his

16、house,_ him out.我急急忙忙赶到他家，结果却发现他不在家。我急急忙忙赶到他家，结果却发现他不在家。led you tokeep free from/offree from/ofevery two months/second month/other monthhas been lying in bedhittingonly to findHe hurried to school,only _ it was Sunday.A.to find B.finnding C.found D.find A说出下列句子中build up 的意思1.These chemicals in the f

17、ood supply build up in peoples bodies over time.2.Shes built up a very successful business.3.She plays Taijiquan to build up her strength every morning.4.The pressure on the enemy is building up.翻译句子1.我被他们提出的问题弄糊涂了。2.很抱歉，我不能帮你的忙。3.众所周知，条条大道通罗马。4.我们应当使用新能源，使我们的环境免受污染。5.我们每三周回家一次。ment6.build up7.lead to8.keep free from/of9.每每,每隔每隔10.现在完成进行时现在完成进行时11.V+ing 作结果状语作结果状语Homework 1.在笔记本上整理本节课笔记。2.做一线课时练习8.