人教版必修四unit2-reading-和练习讲解讲课讲稿.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,人教版必修四unit2 reading 和练习讲解,pre-reading,What problem do they show?,hunger,How do you feel,when you see the pictures?,Do something to rid the world of hunger!,How much land can be used for farming?,3/4 of our earth is covered with water!,2.1/2 of this piece is too hot,cold,or wet for farming!,3.3/4 of this part is used for roads,buildings like houses,schools!,4.Only,1/32,of the earth is used for farming!,A Pioneer For All People,Super,hybrid,rice,Task 1 Scanning,Para1 A.Dr Yuans dreams.,Para2 B.Dr Yuans personality.,Para3 C.Dr Yuans,biography,.,Para4 D.Dr Yuans appearance,and his achievement.,Para 1 Appearance and Achievement.,Appearance,face:,arm:,body:,sunburnt,sunburnt,slim,but strong,looks like a_,farmer,Although he is one of Chinas most famous scientists,Yuan Longping,consider,s himself a farmer,for,he,works the land,to do his research.,Indeed,his sunburnt face and arms and his slim,strong body are just like those of,millions of,Chinese farmers,for,whom he,struggle,d,for the past five,decade,s.,Dr Yuan is like,more,a farmer,than,a scientist,.,Para 1 appearance and achievement.,Appearance,face:,arm:,body:,sunburnt,sunburnt,slim,but strong,looks like a_,farmer,2.achievements,He grows what is called_,which,makes it possible to,produce_ more of the crop in the same fields.,super hybrid rice,one-fifth,Para.2,His biography,Time,information,1930,1953,As a young man,In a recent,harvest,now,Born in Beijing,Graduated from college,Hunger,was a disturbing problem.,search for,a way to increase the rice harvest.,200 million tons was produced,Circulating his knowledge,22%,7%,Means?,UN rid the world of hunger,Thanks to,his research,the UN has more,tool,s in the,battle,to,rid,the world,of,hunger.,由于他的研究，联合国在消除世界饥饿的战斗中有了更多的方法,Using his hybrid rice,farmers are producing harvests,twice as large as before,.,using,作状语，修饰后面整个句子,Paragraph 3,Topic sentence?,Dr Yuan is quite satisfied with his life.,He doesnt care about _ and _.He likes freedom for his search and hobbies.,fame,money,Personality,Para 4:his dreams,His first dream,His second dream,As tall as sorghum,As big as an ear,of corn,As huge as a peanut,To export his rice so that it can be,grown around the globe.,1.,himself(as)a farmer,认为他自己是个农民,2.,the land,耕种土地，在田间耕作,3.do ones,进行研究,4.,face and arms,被太阳晒黑的脸庞和手臂,5.the past five,在过去的,50,年里,6.the first agricultural pioneer,rice,第一个种高产水稻的农业先锋,7.a high,高产量,8.graduate,Southwest Agricultural College,从西南农学院毕业,9.life,人生目标,10.the great need,对,巨大的需求,11.a,problem,一个令人烦恼的问题,12.search,寻找,13.without _,_ the area of fields,不扩大农田面积,14.,ones knowledge,传播知识,15.,developed countries,欠发达国家,16.,幸亏，由于,17.,the world,hunger,消除（解决）世界饥饿,18.harvests twice,before,产量是从前的两倍,19.be quite,对,.,非常满意,20.care,喜欢,；照顾；关心,；,_,_,_ little,about,对,很少关心,21.would rather,sth.,宁愿做,22.spend,在,.,上花费,.,23.,a comfortable life,过舒适的生活,24.rather,而不是,25._sb.for,使,做好准备，为,装备,26.give him less,_ to do sth,给他更少的自由,27._,_ from,从,中醒来,28.,the hope of,怀着,希望,29.,_,_ rice,出口大米,30.,the globe,全球，全世界,31.make it possible _ _,使,成为可能,As,a young man,he saw,the great need for increasing the rice output,.,At that time,hunger was,a disturbing problem,in many parts of the countryside.,When he was young,he know,how important it was,to produce bigger rice crops.,=it is important to,=doing sth.is important/of great importance,During his early years,much of the countryside,was troubled by,hunger.,=be badly influenced/affected by,have a bad effect on,Using,his hybrid rice,farmers are producing harvests,twice as large as,before.,Spending,money on himself or leading a comfortable life also,means very little to him.,As,they use his hybrid rice,farmers are producing,twice as much rice as,before.,He,is not interested in/cares little about,buying things for himself or having a,Just,dreaming,for things,however,costs nothing.,It doesnt cost anything to dream for something.,A3 B,篇,What is CA?,What are the three principles of CA?,How does CA help,reduce soil damage,?,What are the,functions,of cover crops?,What is the,rotation of crops,?,It,is meant to,keep soil healthy,develop sustainable farming,and,prevent,the damaging overuse of land.,Gaining,popularity,CA aims to help famers,keep,land healthy and,productive,by,become popular,Control tillage,What is tillage?,turn over,nutrient,current,unusable,By,avoid,ing tilling,organic soil matter,may actually benefit,as,crop pieces,form,a protective surface over the soil.,cover crops,These,crops prevent water and soil loss by,Cover crops,also,By cycling crops that need different nutrients through the same field,the soil,.statistics sunburnt output circulated nationality,struggled decade regret Therefore nutrition,.,A)1.,根据,2.build up,3.,幸亏，由于,4.lead to,5.,对,感到满意,6.focus on 7.,宁愿，宁可,8.keepfree from/of 9.,摆脱，除去,10.with the hope of,1.with the hope of 2.lead to,3.build up 4.would rather 5.keep free from,6.be focused on 7.was satisfied with,8.According to 9.Thanks to,10.rid of,.,underline summary exports,bacteria chemical,expands,.,production hungry disturbing freedom,equipment occupation confusing,discovery comments reduced,.,more than cared for as as,put back done research on,_ the past half century,在过去的半个世纪期间,_ fertilizers,化学肥料,_use of ,的长期使用,cause _ to,对,造成伤害,_ off,洗掉,food_,食品供应,_cancer,导致癌症,In _,另外，此外,turn to_ farming,转向有机农业,_ on,集中,于,_ soil _ _disease,使土壤免受疾病的影响,every_ _,每隔几年,12.make_ ready for,使,为做好准备,13.,put down_,扎根,14.avoid_,避免做某事,What are some of the problems,caused,by chemical fertilizers?,In addition,fruit,vegetables and other food,grown,with chemical fertilizers usually grow,too,fast,to,be full of much nutrition.,化肥带来的问题有哪些呢？,另外，施过化肥的水果、蔬菜和其他食物通常生长得过快而营养不足。,过去分词作定语,3.Crops,such as,peas or soybeans,put,important minerals,back into,the soil,mak,ing,it reading for,crops,such as,wheat or corn,that,need rich and fertile soil.,像豌豆或者大豆这样的农作物将重要的矿物质带回土壤，从而使之适宜于种植要求土壤肥沃的农作物比如玉米或者小麦。,现在分词做定语,4.Organic farmers also plant crops to use different levels of soil,for example,planting,peanuts,that,use the ground surface,followed,by vegetables,that,put down deep roots.,有机耕作的农民还种植多种农作物来利用不同层次的土壤。比如，他们先种植生长于浅层土壤的花生，然后再种植生根于深层土壤的蔬菜。,过去分词作定语,take place,turn up,set,off,get away with,cut down,bring up,account for,break out,rather than,settle down,move off,come across,carry on,build up,发生,出现，到场，调大,出发，动身，使爆炸,不因,受惩罚,砍倒，削减，删节,抚养，培养，教育，提出,是,的原因，解释,爆发，突发,与其，不愿,定居，平静下来，专心于,离开，启程，出发,偶然遇见,继续，坚持,逐渐增强，建立，开发,Dear Mr.Smith,Im writing to invite you to join us in the English poetry recital competition on July 4.the competition is going to take place on the second floor of the teaching building from 7 p.m.to 9 p.m.,during which time participants will recite their favorite English poems.Those who win the prizes will share their experience in learning English.,It would be a great pleasure if you could come and be one of the judges.Im sure we will have a wonderful time together.,Looking forward to your reply.,Yours sincerely,Li Hua,But Mom refused to give up.,“Im sure she is still inside,”she said as she kicked,the door,with great force and shouted in a,loud,voice,“Wake up,Makcik,!”By then,both of us were coughing badly.I was trying hard to pull Mom away when the door opened.Mom was right-Makcik stood there,totally confused.There was no time to explain.Mom immediately led Makcik downstairs and outside to a safe spot where people had gathered to witness the,fire,.Realizing the seriousness of the situation,Makcik held my mothers hands tightly,with tears rolling down her cheeks.,A newspaper reporter came forward and interviewed Mom.,Mom said that she was familiar with Makciks daily routine and was certain she was still sleeping then.When asked if she was,scared,Mom replied,”My neighbor was in danger,so the thought of fear never crossed my mind.”The reporter praised Mom for her,brave,and selfless act.Mom set a good example to me.She taught me the importance of helping others out of trouble.My mom was great.,此课件下载可自行编辑修改，仅供参考！感谢您的支持，我们努力做得更好！谢谢,