人教版必修4 Unit 2Working the land using language课件
With these discoveries, we are beginning to turn to cloth bags. They can be used many times. People can save a lot of source in this way. It is also a good idea to make some by ourselves, which is interesting. Let’s use cloth bags in our daily life instead of plastic bags, not only for the environment protection, but also the sake of our health.
Chemical Or Organic Farming?
green food
organic food
Chemical Or Organic Farming?
First reading: get the main idea of each paragraph. para1: A new discovery of scientists. para2: Several problems caused by using chemical fertilizers. para3: The advantages of using organic farming. para4: Some methods to keep the soil fertile.
Illustration （阐明） comparison conclusion
Para3 Advantages
Para4 Several methods
The type of the article is_____________ Exposition（说 明文）
Over the past half century, plastic bags have become very common in our daily life. We welcomed them as a convenient way to carry goods. Recently, however, we have been finding that they can cause damage to the environment, even worse, to people’s health.
illustration （阐明） comparison conclusion
The type of the article is_____________ exposition（说明文）
请以“PLASTIC OR CLOTH BAGS?”为题模 仿这篇文章的篇章结构 和句子结构去写一篇说 明文。
Tips: infinitive” to” is used to express the The methods to keep the soil fertile purpose
1 using natural waste from animals as fertilizer. 2 changing the kind of crop in each field .
1 Why are chemical fertilizers so popular in farming today?
2 After the long-term use of chemical fertilizers, what have scientists found?
Many farmers welcomed them as a great way to stop crop disease and increase production.
Recently, however,
Long-term use of chemical fertilizers can cause damage to the land and , even more dangerous, to people’s health.
Read paragraph 2 and find out the problems caused by using chemical fertilizers. There are three problems.First, they can damage … as well as …. They also stay in the … and …. In addition, …grow too fast to ….
What do you think of the farming today? healthy?
environment-friendly?
natural? chemical? organic? green? transgenic?
Homework :
Finish the writing .
The following words may help you.
Over the past half century, …have become very common …. …welcomed them as a … way to …. Recently, however, we have been finding that they can cause damage to …, even …, to people’s health.
What are some of the problems caused by …? First,… With these discoveries, …are beginning to turn to …. ….
The structure of this passage Para1 Topic Para2 Problems
Second reading
Tips: the usage of several adverbs means clear and reasonable connection between parts.
therefore; meanwhile; anyhow; thus ;otherwise; moreover; besides etc.
Read the following sentence, and find what they have in common?
1 …such as wheat or corn that need rich and fertile soil.
2 …planting peanuts that use the ground’s surface followed by vegetables that put down deep roots.
The two sentences both include attibutive clause. Noun Clauses & Attributive Clause
Tips: clauses make the passage logical（逻辑的） and beautiful
The structure of this passage
The farmers focus on keeping their soil rich and free of disease and keeping the air , soil, water and crops free from chemicals.
Tips: several phrases caபைடு நூலகம் be used.
using plastic bags.
Para3: The advanages of using cloth
bags.
Para4: Conclusion.
The following words may help you.
Over the past half century, …have become very common …. …welcomed them as a … way to …. Recently, however, we have been finding that they can cause damage to …, even …, to people’s health.
3 planting crops to use different levels of soil
4 planting grass between crops to prevent … The same goal : ________________________ to grow good food and to ______________________________________ avoid damaging the environment or ______________________________ people’s health.
Discussion and practice Plastic Or Cloth Bags?
illustration （阐明） comparison conclusion
Para1: Have a brief illustration of the
人教高中英语必修4 unit2 Working the land[全套教案下载]
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Unit 2 Working the landTeaching aims:1．TopicAgriculture; a pioneer in farming; organic farming and green food2．Useful words and expressions:Nouns: hunger, output, freedom, violin, motorcycle, grain, mineral, supply, bacteria, pest, level, summary, exchange, nutritionVerbs: hunger, sunburn, struggle, expand, circulate, satisfy, equip, export, confuse, reduce, supply, exchangeAdjectives: sunburnt, satisfied, suitable, chemical, whatever, certainExpressions: thanks to, rid… of , be satisfied with,lead a …life, would rather, refer to3。
Functional items:1. SuggestionsYou’d better…May I suggest..?It’s better to…?Should I/we …?Let’s ….Perhaps we should…But what /how about…?You need to…2. AdviceBe careful!Don’t forget..Please make sure that…You should…Please remember…You’d better…3．GrammarThe –ing frorm as the subject and objectWishing for things, however, coasts nothing.His other hobbies include playing mah-jong, swimming and reading.Teaching proceduresPeriod 1 ReadingStep 1. Warming upDiscuss:1．What are the problems of the world today?2．How can we improve the output of the grain?3．Is there enough land for people to grow plants? If not, what should we do?Background knowledge:Organic farming 有机农业natural fertilizers 天然traditional farming 传统农业hybrid rice 杂交水稻peanut 花生wheat sorghum 高粱corngrain potato turnip 萝卜sugarcaneonion cucumber soybean vegetablewinter melon bitter gourd 苦瓜pumpkin broccoli 绿花菜celery芹菜cauliflower 花菜Step 2. ReadingTask 1: Ss discuss and finish Ex 1 on page 10.Task 2: Ss read and answer the following questions:1．What’s the passage mainly about?A. The great achievements China has made in farming.B. The great achievements that Yuan Longping has made.C. A brief introduction to Yuan Longping.D. History of farming in China.2．How many parts can the passage be divided into?A. 3B. 4C. 2D. 13．Y uan Longping is always looked on as a farmer because _______.A. he was born in a farmer’s familyB. he has struggled to help farmersC. his appearance looks like that of farmersD. he is one of China’s most famous farmers4．The biggest problem of Chinese farmers is __________.A. the shortage arable landB. lack of equipmentC. lack of moneyD. lack of technologyTask 3:Step 4. After- readingTask 4: Ss in groups and discuss:1. What measures should we take to solve the problem of farmers and countryside in China?2. The arable land in the world is less than what we need. Should we cut down trees to make arableland? Why or why not?Period 2. Language learningStep 1. RevisionSs retell the text.Step 2. Language points1. struggle v. to make great effortsThey have struggled for years to free their country from the enemy.I’m struggling to finish the huge helping you gave me.2. sunburnt adj. sun-tannedHis sunburnt skin looks healthy.3. super adj. excellent; splendidYou’ll like her, she’s super.You look super in your new clothes.It was super of you to help.4. expand v. become greater in size, number or importanceMetal expand when they are heated.Why not try to expand your story into a novel/5. circulate v. pass from one person, place etc to anotherPeople who circulate false news are to be blamed.Yet reports of this kind have been circulated by our newspapers.The news of the enemy’s defeat quickly circulated round the town.6. equip v. supply sb/sthThey can’t afford to equip their army properly.Please equip yourself with a sharp pencil and a rubber for the exam.7. export v. send (goods) to another country for saleIndia exports tea and cotton to many different countries.8. rid … of make sb. /sth. free fromWe all wish that we would rid the world of famine.The farmer recently tried to rid the house of rats.9. lead a …life = live a … lifeNow we are leading a happy life.In the old days farmers led a terrible life in the country.10. be satisfied with, be content withThe young lady isn’t satisfied with the peaceful life.Are you satisfied with his answers?11. would rather, prefer toI’d rather walk than take a bus.I’d rather you knew that now, than afterwards.Step 3 Learning about language1. Ss do part 1 of the discovering useful words and expressions。
人教版高中英语必修4Unit2WorkingthelandUsingLanguage课件
• 每隔一年= • 每两年
• 每(隔)几年 • 增强体质
every two years every other year every second year every few years build up one's body= improve one's health
• 强身健体
build up a strong body
many chemical fertilizers free of chemical fertilizers
Step6: Language points Phrases
• 给…造成损害 • 将…洗掉 • 逐渐增强;建立 • 导致;通向 • 集中精力于 • 使…免受(影响) • 另外;除此之外
cause damage to wash off build up lead to focus on keep...free from/of in addition (to sth)
Q1: Why are chemical fertilizers so popular in 1. fTarhmeyinagrteodaagyr?eat way to stop crop disease
and increase production. Q2: How many kinds of fertilizers do farmers use? 2. There are two kinds. They are chemical fertilizers and natural ones. Q3: What is organic farming? 3. Organic farming means growing crops without using any chemicals.
人教版高中英语必修4《Unit 2 Working the land》教案2篇
人教版高中英语必修4《Unit 2 Work ing the land》教案2篇Teaching plan of unit 2 working the land编订：JinTai College人教版高中英语必修4《Unit 2 Working the land》教案2篇前言：英语作为在许多国际组织或者会议上都是必需语言，几乎所有学校选择英语作为其主要或唯一的外语必修课。
英语教学涉及多种专业理论知识，包括语言学、第二语言习得、词汇学、句法学、文体学、语料库理论、认知心理学等内容。
本教案根据英语课程标准的要求和教学对象的特点，将教学诸要素有序安排，确定合适的教学方案的设想和计划、并以启迪发展学生智力为根本目的。
便于学习和使用，本文档下载后内容可按需编辑修改及打印。
本文简要目录如下：【下载该文档后使用Word打开，按住键盘Ctrl键且鼠标单击目录内容即可跳转到对应篇章】1、篇章1：人教版高中英语必修4《Unit 2 Working the land》教案2、篇章2：人教版高中英语必修4《Unit 2 Working the land》教案篇章1:人教版高中英语必修4《Unit 2 Working the land》教案教学准备教学目标（1）知识目标：让学生通过阅读课文更多地了解我国著名的农业科学家袁隆平的科研成果及其影响。
（2）能力目标：让学生进一步使用恰当地阅读方式与技能，如略读（skimming），快速阅读（fast reading），细读（close reading）等（3）情感目标：让学生不但学习袁隆平的科研精神，更要学习他不计较名利，踏踏实实的生活态度。
教学重难点1.阅读课文更多地了解我国著名的农业科学家袁隆平的科研成果及其影响。
教学过程1.话题的引导。
（Pre-reading）1）.开头通过设计了一首熟悉的诗歌，让学生知道话题---farming.2）.涉及到提高产量从而解决世界饥荒问题，从而引出本节课的中心话题--伟大人物袁隆平。
人教版高中英语必修4Unit2WorkingthelandUsingLanguage课件
Chemical Or Organic Farming?
化学耕作 还是 有机耕作？
Skim to find the topic sentence or main idea for each paragraph.
Structure:
Para 1
Part1
chemical farming
Para 2
B．to tell
C．having told
D．said
解析：句意为：——布莱克先生，我的申请如 何？——噢，我很遗憾地告知你，它未通过。由 句意可知为“遗憾地要去干某事”，故选择 regret to do的情势。
build up one‘s confidence / strength 增强信心 / 体质 build up business / a company 建立生意 / 公司
(2)It created _w_i_d_e__ __c_o_m_m__e_n_t__ in the press. 这引起报界广泛的评论。
(3)He made some useful _c_o_m__m__e_n_ts__ ___o_n__ my work. 他对我的作品作了一些实用的评论。
(4)He __c_o_m_m__e_n_t_ed__ that it was an excellent film. 他评论这部电影很精彩。
I regret that I am unable to accept your kind invitation. 很遗憾，我不能接受你的友好邀请。
regret doing/having done sth. 后悔做了某事
regret to say/tell/announce/inform 遗憾地说/告知/宣布/通知
(完整版)新人教版Book4Unit2WorkingtheLand课文
Unit 2 Working the landPart I a Pioneer for all PeopleAlthough he is one of China’s 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 has struggle d for the past five decade s. Dr Yuan Longping grows what is called super hybrid rice. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output. This special strain of rice makes it possible to produce one-third more of the crop in the same field s. Now more than 60% of the rice produced in China each year is from this hybrid strain.Born in 1930, Dr Yuan graduate d from Southwest Agricultural College in 1953. Since then, finding ways to grow more rice has been his life goal. 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. Dr Yuan search ed for a way to increase rice harvest s without expand ing the area of the fields. In 1950, Chinese farmers could produce only fifty million tons of rice. In a recent harvest, however, nearly two hundred million tons of rice was produce d. These increased harvests mean that 22% of the world’s people are fed from just 7% of the farmland in China. Dr Yuan is now circulating his knowledge in India, Vietnam and many other less developed countries to increase their rice harvests. Thanks to his research, the UN has more tool s in the battle to rid the world of hunger. Using his hybrid rice, farmers are producing harvests twice as large as before.Dr Yuan is quite satisfied with his life. However, he doesn’t care about being famous. He feel s it gives him less freedom to do his research. He would much rather keep time for his hobbies. He enjoy s listening to violin music, playing mah-jong, swimming and reading. Spend ing money on himself or lead ing a comfortable life also means very little to him. Indeed, he believe s that a person with too much money has more rather than fewer trouble s. He therefore gives millions of yuan to equip others for their research in agriculture.Just dream ing for things, however, cost s nothing. Long ago Dr yuan had a dream about rice plants as tall as sorghum. Each ear of rice was as big as an ear of corn and each grain of rice was as huge as a peanut. Dr Yuan awoke from his dream with the hope of producing a kind of rice that could feed more people. Now, many years later, Dr Yuan has another dream: to export his rice so that it can be grown around the globe. One dream is not always enough, especially for a person who loves and cares for his people.Part II Chemical or Organic Farming?Over the past half century, using chemical fertilizers has become very common in farming. Many farmers welcome d them as a great way to stop crop disease and increase production. Recently, however, scientists have been finding that long-term use of these fertilizers can cause damage to the land and, even more dangerous, to people’s health.What are some of the problems caused by chemical fertilizers? First, they damage the land by kill ing the helpful bacteria and pests as well as the harmful ones. Chemicals also stay in the ground and underground water for a long time. This affect s crops and, therefore, animals and humans, since chemicals get inside the crops and cannot just be wash ed off. These chemicals in the food supply build up in people’s bodies over time. Many of these chemicals can lead to cancer or other illnesses. In addition, fruit, vegetable s and other food grown with chemical fertilizers usually grow too fast to be full of much nutrition. They may look beautiful, but inside there is usually more water than vitamin s and mineral s.With these discover ies, some farmers and many customer s are beginning to turn to organic farming. Organic farming is simply farming without using any chemicals. They focus on keeping their soil rich and free of disease. A healthy soil reduce s disease and helps crops grow strong and healthy. Organic farmers, therefore, often prefer using natural waste from animals as fertilizer. They feel that this makes the soil in their fields richer in minerals and so more fertile. This also keeps the air, soil, water and crops free from chemicals.Organic farmers also use many other method s to keep the soil fertile. They often change the kind of crop in each field every few years, for example, growing corn or wheat and then the next year peas or soybeans. Crops such as peas or soybeans put important mineral s back into the soil, making it ready for crops such as wheat or corn that need rich and fertile soil. Organic farmers also plant crops to use different level s of soil, for example, planting peanuts that use the ground’s surface followed by vegetables that put down deep root s. Some organic farmers prefer planting grass between crops to prevent wind or water from carry ing away the soil, and then leaving it in the ground to become a natural fertilizer for the next year’s crop. These many different organic farming methods have the same goal: to grow good food and avoid damaging the environment or people’s health.。
新课标人教版英语必修4：Unit 2 Working the land Grammar
Unit 2 Working the land语法课一、教学内容 Discovering useful structures (p.13); Using structures (p. 50)二、教学目标1. 学生能够识别动词-ing 形式在句子中作主语或宾语，并能够使用这种结构。
2. 学生能够区分某些常用动词后面跟不定式作宾语还是动词-ing 形式作宾语。
三、教学步骤步骤一 热身给学生呈现几幅有趣的公示牌，提醒学生注意其中使用的-ing 形式。
设计意图：从日常生活中的现象入手，一方面激起学生学习语言知识的兴趣，另一方面告诉学生这种语言知识在实际生活中的应用。
步骤二 发现与探究1. 让学生在课文里划出带有动词-ing 形式的句子。
可以先呈现给学生一个例子。
2. 小组活动。
让学生从这些句子中，找出动词-ing 形式短语作主语和宾语的句子，分成两大类。
设计意图：培养学生的探究和归纳能力。
步骤三 动词-ing 形式作主语1. 先让学生集中精力观察动词-ing 形式短语作主语的句子，看看能否发现动词-ing 形式的特点。
教师可以通过提问，引导学生发现动词-ing 形式既有名词的特点，又有动词的特I. Warming UpHave you ever seen these signs?Parking, spitting, littering, smoking-ing formsII. Discovering1.Find and underline the sentences in thepassage that use –ing forms.Example:Since then, finding ways to grow more rice has been his life goal. (paragraph 2)Discovering2. Choose the sentences that use –ing forms either as the subject or the object.As the subject Since then, finding ways to grow more rice has been his life goal.As the object点。
Unit2 《Working the land》(新人教必修4)
ks5u精品课件
Task 3 Careful reading
Para. 1 Dr Yuan’s appearance and his achievement
Q1: What does Dr Yuan look like?
?
ks5u精品课件
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.
ks5u精品课件
Para4
What does “Wishing for things, however, costs nothing.” mean?
Dreams are free and everybody
can have ideas about
what they would like their future life to be.
ks5u精品课件
facts about Yuan’s super hybrid can produce 1/3 more of the crop in rice
capacity the same fields; more than 60%of the rice in China from this hybrid strain (能力) besides China, knowledge being Applica- circulated in India, Vietnam and other less developed countries to increase tion their rice harvest (应用) rice harvests being produced twice as large; 22% of people fed from just 7% Contribu of the farmland in China; the UN ridding the world of hunger -tion future
人教新课标高中英语必修四-Unit2 Working the land reading 课件
developed countries such as India and Vietnam
graduated
goal circulate
Personalities is satisfied with his life doesn’t care about being famous gives a large amount of money to help
He is satisfied with his life.
His personality
Why is he satisfied with his life? Because he doesn’t like money and fame.
Thas tall as sorghum
Dr Yuan Longping (袁隆平博士)
Super Hybrid Rice the rice that has a high output
Find out the main idea of each paragraph.
Para 1 Para 2 Para 3 Para 4
A. Dr Yuan’s dreams. B. Dr Yuan’s personality. C. Dr Yuan’s biography. D. Dr Yuan’s appearance
人教新课标高中英语必修四－ Unit2 Working the land reading
课件
Warming Up
Enjoy a poem By Li Shen
Farmers weeding at noon, Sweat down the field soon. Who knows food on a tray,
Unit2-Working-the-land课件--Using-language
Reduce disease and help crops grow strong and healthy
Avoid damaging the environment and people’s health.
farming today?
2. What is organic farming ?
3. What is the goal of using organic farming methods ?
Listen to the tape and answer
Listeat problems can be caused by using chemical fertilizers?
2. What are the advantages of using organic farming methods?
1. What problems can be caused by using chemical fertilizers?
Damage the land by killing the helpful bacteria and pests as well as the harmful ones.
Writing
Please write a passage with the title of “Plastic or Cloth Bags”, using the sentence structure of the text learned today.
Plastic or cloth Bags?
Many chemicals in the food supply can lead to cancer or other illnesses.
必修四 第二单元working the land Using language
They often change the kind of crop in each field every few years ,…他们通常每隔几年就改变一块 田地里作物的种类,…… every 或 “every other+时间”表示”每隔……每”,表示时 间或空间的间隔. 具体用法是 : “every+基数词+复数 名词”;”every +序数词+ 单数名词”. 例如: every year 每年 every two years / every second year / every other year 每两年(每隔一年) every three years / every third year /every other two years .每三年(每隔两年) every four years / every fourth year / every other three years 每四年(每隔三年)
1.Why are chemical fertilizers so popular in farming today ?
They can stop crop disease and increase production.
2 What problems can be caused by chemical fertilizers ?
Why are chemical fertilizers so popular in farming today ? 为什么花费在现在的耕作中如此受欢迎? popular 的用法: (1)popular 为形容词,意为”受喜爱的，受欢迎的， 当红的”. 常用短语: be popular with sb 受某人欢 迎. 例如: This is one of our most popular designs . 这是我们是受欢迎的设计之一. Skiing has become very popular recently . 滑雪运动最近盛行起来. I’m not very popular with my parents at the moment . 眼下爸妈对我很不高兴.