高中一年级英语必修4unit2课件

2018/1/18,Working the land,2018/1/18,Warming up & Reading,2018/1/18,PoemBy Li Shen,Farmers weeding at noon, Sweat down the field soon. Who knows food on a tray, Due to their toiling day.,2018/1/18,2018/1/18,1.Have you ever grown any plants? If so, what did you do to grow them?If not, what kind of plant would you like to grow?How will you grow it?,2018/1/18,sorghum,wheat,rice,corn,Potatoes,2018/1/18,select the weeds,farming stepsplough the soil,turn over the soil,sow the seeds,remove the weeds,fertilize,2018/1/18,Rice. It is said that there are 2.4 billion people to eat rice every day throughout the world.,What is the main food in all East Asian and Southeast Asian countries?,2018/1/18,If there was no rice one day, what would happen?,2018/1/18,In the late 1990s, Brown, an American scholar, came up with the theory of Chinese Menace(威胁), which said that in the 2030s, Chinese population will add up to 1.6 billion, and had the question who would feed the large population in China as well as in the world.,2018/1/18,Just at that time, a Chinese scientist declared to the world that China can solve the problem by himself and help to solve the same problem in the world.,2018/1/18,Father of Hybrid Rice,A Pioneer For All People,2018/1/18,What kind of person is Dr YuanLongping in your mind?,happy,sad,nervous,shy,proud,dreaming,2018/1/18,Task 1 Skimming,2018/1/18,How can he solve this problem?,Super Hybrid Rice,2018/1/18,Super Hybrid Rice,the rice that has a high output,2018/1/18,Thats how he regards himself.,2018/1/18,Task 2 Scanning,Find out the main idea of each paragraph.,2018/1/18,A PIONEER FOR ALL PEOPLE,Match the following headings with the right paragraphs.,2018/1/18,Para. 1 Dr Yuans appearance and his achievement,Task 3 Careful reading,Q1: What does Dr Yuan look like?,He has a sunburnt face and arms and a slim, strong body. He is more like a farmer than a scientist.,Q2: What is his achievement?,He grows what is called super hybrid rice, which makes it possible to produce one-third more of the crop in the same fields.,True or False: 1.Dr Yuan is more a farmer than a scientist.2.Dr Yuans kind of rice is the most suitable for Chinas farmland.,F,T,2018/1/18,Para 2,His biography,Born in Beijing,Southwest Agriculture College,Hunger was a great problem Saw the great need for increasing the rice output,200 million tons produced,Circulating his knowledge,2018/1/18,Para2,a. He was born into a poor farmers family .b. He graduated from Southwest Agriculture college.c. In 1950,Chinese farmers produced fifty million tons of rice.d. 2 billon tons of rice was produced by growing his hybrid rice. e. He searched a way to increase rice outputs without expanding the area of fields.f. He helps rid the world of hunger by circulating his knowledge in less developed countries.Proper order:,Put Dr Yuans biography in right order.,a,c,b,e,d,f,2018/1/18,Which of the following description about Dr Yuans personality is not true? He is satisfied with his life because he is now rich and famous.B. He cares little about money and fame.C. He would rather work than lead a comfortable life.D. He enjoys a simpler life than most rich and famous people.,Para. 3 Dr Yuans personality,2018/1/18,Para 4,1.What does “Wishing for things, however, costs nothing.” mean?2.Dr Yuan has dreams not only when he is _ but also when he is_.,Dreams are free and everybody can have ideas about what they would like their future life to be.,asleep,awake,2018/1/18,His dreams,Para4,1) The first dream,2) The second dream,2018/1/18,Produce a kind of rice that could feed more people,As huge as a peanut,The first dream,As tall as sorghum,As big as a corn,2018/1/18,To export his rice so that it can be grown all over the world,The second dream,2018/1/18,Revision. (personal information),Name:Nationality:Age:Occupation:Education:Dream:Achievements:Hobbies:,2018/1/18,Personal information (Resume),Name:Nationality:Birth:Age:Occupation:Education:Personality:Dreams:,Yuan Longping,Chinese,in 1930; in a poor family,77,Scientist of farming,Southwest Agriculture College,in 1953,His first dream,His second dream,care little about money and fame,2018/1/18,Personal information,Achievements:,Hobbies:,grow rice that has a high output,circulate his knowledge abroad,give money to equip others for their research,playing his violin,listening to violin music,playing mah-jong,swimming,riding his motorcycle to his rice fields,2018/1/18,hard-working,unselfish,determined,energetic,intelligent,confident,active,modest,2018/1/18,& between Dr Yuan Longping and Jane Goodall,similarities,differences,2018/1/18,1. They spend their lifetime on their researches.,similarities,2. They make great contributions to mankind and the whole world.,3. They have their dreams and make great efforts to make them true.,4. They both lead a busy life.,5. They love their work with their pure love.,6. Theyre selfless and seldom think of themselves.,7. During the work, they never give up but just keep on, so theyre determined.,. . .,2018/1/18,differences,They have been doing their researches in different fields.2. They have different ways of working.3. Their receiving education is different.4. The difficulty in working is different for different sexes.5. They two got different results of researches.6. They hold their different dreams. . . .,2018/1/18,1. They spend their lifetime on their researches.,similarities,2. They make great contributions to mankind and the whole world.,3. They have their dreams and make great efforts to make them true.,4. They both lead a busy life.,5. They love their work with their pure love.,6. Theyre selfless and seldom think of themselves.,7. During the work, they never give up but just keep on, so theyre determined.,. . .,2018/1/18,differences,They have been doing their researches in different fields.2. They have different ways of working.3. Their receiving education is different.4. The difficulty in working is different for different sexes.5. They two got different results of researches.6. They hold their different dreams. . . .,2018/1/18,can produce 1/3 more of the crop in the same fields; more than 60%of therice in China from this hybrid strain,besides China, knowledge being circulated in India, Vietnam and otherless developed countries to increasetheir rice harvest,rice harvests being produced twice aslarge; 22% of people fed from just 7%of the farmland in China; the UN ridding the world of hunger,the rice being grown all over theworld,2018/1/18,T or F,1 Dr Yuan is more a farmer than a scientist. 2 Dr Yuans rice is one of the most suitable ways for Chinas farmland. 3 Dr Yuan would rather work than relax. 4 Dr Yuan has dreams when he is asleep and also when he is awake. 5 Dr Yuan enjoys a simpler life than most rich and famous people.,2018/1/18,Although he is one of Chinas most famous scientists , Yuan Longping considers himself a farmer ,尽管是中国最著名的科学家之一,但袁隆平却把自己看成一个农民,although 相当于though, 引导让步状语从句,不与but连用,但可以和yet, still连用.例如:Although I hurried , yet I was late again . 尽管我匆匆忙忙,然而我再一次迟到了.,2018/1/18,This special strain of rice makes it possible to produce one-third more of the crop in the same fields .,这种特殊的稻种使得同样的田地多收获三分之一的常量.,make 多用越”make+宾语+宾语补足语”结构:(1)make sb / oneself + 过去分词. 例如:He cant make himself heard at the meeting . 在会上别人听不到他的声音.(2)make sb + 不带to的不定式(被动机构加to ). 例如:What makes you think so ? 是什么使你这样想 ?He was made to work at once . 他被迫立刻工作.(3)make + sb/sth + 形容词. 例如 :His coming to my my party made me happy . 他能来参加晚会使我很高兴.(4)make + sb /sth + n . (宾语补足语如表示某人的职位,头衔,在一定范围之内的独一无二,其前不加冠词). 例如 :Max made London the base of his revolutionary work . 马克思使路伦敦成为革命工作的根据地.We all made him monitor . 我们都选他当班长 .,2018/1/18,Now more than 60% of the rice produced in China each year is from this hybrid strain.,(1)more than 意为”多于;超过”,相当于over . 例如 : We have more than 100 teachers in our school . 我们学校有100多名老师. (2)more than 意为”不仅仅是,不只是”, 相当于not only . 例如:Hibernation is more than sleep .,如今,中国每年生产的稻米有60%以上出自这种杂交水稻.,2018/1/18,As a young man , he saw the great need for increasing the rice output .,年轻时, 他就看到了稻田增产的巨大需求 .,as 的用法:(1)as作介词, 意为”如;像;作为;以资格”.例如;What does “quake” mean , as in the word “earthquake” ? 像earthquake 中的quake 是什么意思?(2)as作连词,意为”当时候 ” , 引导时间状语丛句,多表示主,从句谓语动词的的动作同时发生,与while 相近. 例如 :As she sang ,tears came down her cheeks . 她一边唱歌,一边流泪.(3)as引导原因状语从句时,相当于because ,since, 意为”因为,由于”.例如:As he is a qualified doctor , I trust his advice on medical matters .因为他是一位合格的医生,所以在医疗问题上我相信他的建议.(4)as引导方式状语从句或比较状语从句,意为”如,像”.例如:She stayed in bed as the doctor had ordered . 她依照医生的嘱咐卧床休息. (5)as引导让步状语从句, 意为”尽管”.例如:Young as I am , I know what career I want to follow . 尽管我很年轻,但我知道我想从事什么职业,2018/1/18,Dr Yuan searched for a way to increase rice harvests without expanding the area of the fields . 袁博士在不增加土地面积的基础上寻求达到增收的途径.,search , search for , look for 的用法区别(1)search 为及物动词,其宾语可以是人，房屋,衣袋,山,森林等名词,意为”搜索或者搜索某地”.例如:The policeman searched the thiefs room , but found nothing .警察搜了小偷的房间,但什么都没找到.(2)search for 意为”搜索,搜索某人或某物”,而searchfor意为”搜寻某处/某物以找到.”.例如:The policeman searched the thief for a wallet . 警察搜小偷的身来寻找一个钱包.(3)look for 意为”寻找”,是常用语.例如:He is looking for his pen everywhere . 他在到处找他的钢笔.,2018/1/18,Using his hybrid rice , farmers are producing harvests twice as large as before.用他的杂交水稻种子,农民们种出比以前多一倍的粮食.,在表示三倍或三倍以上的倍数时,我们通常常用time 一词. 用time 表示倍数有以下几种句型:,主语+谓语+times + as + 形容词 + (n.) + as + 被比较的内容. 例如: We got four times as many people as we had expected . 来的人数是我们所预料的四倍. 这种句型常用来表示A是B的多少倍主语+谓语+times + 形容词的比较级 + than + 被比较的内容. 例如:My books are three times more than yours . 我的书比你的书多三倍. 这种句型常用来表示A比B多多少倍. 主语+ 谓语+by+times .例如:Compared with that of last year , our coal output has increased by three times . 与去年相比,我们的煤常量长了三倍. 这种句型常用来表示增长