课件30张PPT。 Unit 2
Working the land231、理解全文,了解袁隆平的生平和杂交水稻,并
完成所布
置的任务。
2、用所学的词汇和语言点复述课文,掌握段落
大意。
3、用所学的知识与伙伴进行交流、沟通,提高
交际能力。 本课首先让学生翻译一首诗歌《锄禾》。然后通过图片展示来吸引学生的兴趣，从而引出本节主题全中国乃至全世界最著名的农民——袁隆平和他的杂交水稻。学生通过阅读文章，快速找出文章主题和段落大意。之后，让学生听录音，按时间顺序找出袁隆平的生平事迹和他的品质、梦想。并通过难句理解、回答问题、排序等加深学生对课文的理解。最后设计讨论环节：水稻尤其是杂交水稻的重要性以及如何解决贫困国家和地区的饥饿问题，从而突出袁隆平对中国和全世界的贡献。 ????在介绍袁隆平时，配有相关视频，有助于吸引学生注意力，激发学习兴趣。学生通过小组合作学习，讨论水稻尤其是杂交水稻的重要性以及如何解决贫困国家和地区的饥饿问题，提高学生的合作能力、拓宽学生的国际视野和培养学生对时事、民生的关注。wheat A poemFarmers weeding at noon,
Sweat down the field soon.
Who knows food on a tray,
Due to their toiling day.
锄禾日当午
汗滴禾下土
谁知盘中餐
粒粒皆辛苦3.He first grows what is called super
hybrid rice in the world. He is called
the Father of Super Hybrid Rice
1. He is the most famous “farmer” in China. 2. The value of his name is worth 100，000，000，000yuan.farmerPoor riceSuper hybrid riceAB3.He first grows what is called super
hybrid rice in the world. He is called
the Father of Super Hybrid Rice
Answer: Yuan Longping1. He is the most famous “farmer”in China.2. The value of his name is worth 100，000，000，000yuan.farmer感动中国 袁隆平Unit 2 Working the land Reading
A Pioneer For All PeopleTask 1
fast reading1.Read the text quickly, and try to find out the main idea of each paragraph.Getting the main idea of each paragraph: A PIONEER FOR ALL PEOPLEParagraph1:
Paragraph2:
Paragraph3:
Paragraph4:His appearance and achievement.His biography.His quality and hobbies.His dreams.He grows what is called super hybrid rice, and became the first agricultural pioneer in the world to grow rice that has a high output.
He has a sunburnt face and arms and a slim, strong body. He is more like a farmer than a scientist.
Paragraph11. What does Dr. Yuan look like?2. What’s his achievement?His biography
Time & EventsParagraph 2Time & EventsYuan Longping was born in Beijing.Chinese farmers produced about fifty million tons of rice.Yuan graduated from Southwest Agriculture College.Yuan became the first agricultural pioneer in the world to grow rice that has a high output.Nearly two hundred million tons of rice was produced.Yuan is circulating his knowledge in India, Vietnam and other less developed countries.Hobbies:playing his violinlistening to violinplaying mah-jongswimmingreadingriding his motorcycle to his rice fieldsParagraph 3 Use a few words to describe Dr Yuan successful, helpful, hard-working, modest, determined, make great achievement, not care about money and reputation Paragraph 3Paragraph 4Dr Yuan has dreams when he is asleep
and
Dr Yuan has dreams when he is awake.Describe the rice in his dream.As tall as sorghum
As big as corn
As huge as a peanutDreams:With the hope of producing a kind of rice that could feed more peopleTo export his rice so that it can be grown all over the worldParagraph 4Dr Yuan has dreams when he is asleep
and
Dr Yuan has dreams when he is awake.Task 2Listen to the tape carefully then do the T/F questions.02 readingT or F 1. Dr Yuan is more a scientist than a farmer.
2. Dr Yuan’s kind of rice is the most suitable for China’s farmland.
3. Dr Yuan would rather work than relax.
4. Dr Yuan enjoys a simpler life than most rich and famous people.FTTT At that time, hunger was a disturbing problem in many parts of the countryside. He helps the world get rid of hunger by producing a hybrid rice which increase the harvest without expanding the area of the fields.
Why did Dr. Yuan want to increase the rice output when he was young?2. How does he help rid the world of hunger?Task 3
further discussionIf that happened, people might die of hunger. The whole world would get into trouble.Discussion ( pair work)Just dreaming for things,
however, costs nothing.愿望是不花本钱的How to solve hunger? Group discussion?How to solve hunger? make good use of the waste land develop the technologyInvent a new kind of plant to produce more food.
improve the quality of the soil prevent the pests from eating our cropsStop the pollution to the environment and protect the soil in the field.Homework 1. Read the text aloud after class.
2. Retell the text according to time line after class.
3. Find the difficult sentences.Thank you for listening!课件21张PPT。unit2 working the landvocabulary31、掌握本单元重要单词和短语。
2、知道这些重要词汇在语境中的具体使用。 本课首先应用课文词汇复述袁隆平的事迹，达到重现关键词汇的目标。然后对本单元的重点词汇进行拓展和实际操练，最后通过竞赛的形式，把学过的词汇活用到各个语境中，竞赛题型设置了多种题型，有英英释义，中英释义，语境填空等。 ????在复述课文时，给出关键词汇，有助于学生回忆与应用。接下去通过填空，选择，举例等形式让学生运用重点词汇，结合具体的语境，让学生能灵活运用。最后采用竞赛形式，让学生通过小组合作，呈现词汇巩固的效果，学生通过合作学习的方式，弥补个体学习的不足，并在竞赛中更好的巩固词汇和增强小组荣誉感，变枯燥的词汇学习为有趣的小组合作学习。Review what we have learnt about Yuan Longping
referring to some key words consider himself a farmer/ sunburnt/
work the land/struggle for/super hybrid rice/
a high output/hunger...a disturbing problem/
rid...of/twice as large as/be satisfied with/
would rather/dream for...
。
单元重点词汇理解：
1 Yuan Longping considers himself a farmer, for he works the land
to do his research.
consider 把(某人，某事)看作/认为…
eg: We consider it a shame.
I consider it good to get up early.
【知识拓展】1 consider （认为）sb. to as/to be +adj/n.
2 consider（考虑）doing/what to do
3 take sth. into consideration 顾及到某事, 考虑到某事
1.They have been considering ____ the problem.
A. to work out B. work out
C. working out D. worked out
2. I consider Tom ____ the finest basketball player today.
A. to be B. being C. was D. be
3. Our monitor ____ to be an honest man.
A. considers B. is considering
C. was considered D. has consideredCAC2. …for whom he has struggled for the past five decades.
…… 过去五十年来，他一直在努力帮助他们。
struggle vi./n. 斗争；拼搏；努力
eg: He has struggled with sickness for a few months.数月来他一直在与疾病作斗争。 【拓展】
struggle to do sth 努力做某事 struggle against/with 与……做斗争
struggle for 为争取…… 而斗争 struggle to one's feet 挣扎着站起来
【操练】
1 She __________________________(挣扎着站起来)and
continued walking.
2 They had to ____________________(与...作斗争) weather and
wild animals.
3 What ideals will you fight and __________________(努力争取)struggled to her feetstruggle with/againststruggle for3. Thanks to his research, the UN has more tools in the battle to rid
the world of hunger.
[拓展] rid 还可用作形容词, 构成get/be rid of,意为“丢弃, 扔掉;
摆脱, 除去”。如：
Let’s get rid of this old furniture.
We will be glad to get rid of him.1) thanks to: 幸亏/由于
Thanks to your help, I passed the exam.2) rid … of 意为“(使)摆脱, (使)除掉”, rid (rid/ridded, rid, ridding)
She is trying to rid herself of a dependence on drugs.
You should rid yourself of the bad habits.
= You should get rid of the bad habits.4. Dr Yuan is quite satisfied with his life.
be satisfied with: 对……感到满意
eg:One shouldn’t be satisfied with only a little success.
satisfy: v. 使……满意，赔偿
eg:I had to explain the reasons to satisfy his curiosity.?
[拓展]
satisfaction n 满意 with satisfaction 满意地
to one's satisfaction 使某人满意的是 satisfying 令人满意的
satisfactory 令人满意的【操练】
1 ___________with what I said,mother agreed that I could go
swimming .
2 The education system must _____________the needs of all children.
3 Much to my ___________, the boss was quite_____________with
what I had done. He said my work was very ___________________
Satisfiedsatisfysatisfactionsatisfiedsatisfactory[用法2]: would rather have done sth. 表示主语要做某事，而结果却事与愿违。
I’d rather have left a note on her desk.我本想留张字条在她的书桌上。(事实上没有)7. He would much rather keep time for his hobbies.
would rather: 宁可; 宁愿
would rather do sth.
eg:They would rather go fishing than stay at home.他们宁愿去钓鱼, 也不愿待在家里。
I would rather fail than cheat in the examination.?
我宁愿考不及格, 也不愿意考试作弊。[用法1]: would rather…than… 宁愿……而不……, 与其……不如
I would rather watch TV at home than go to the cinema.[用法4]: would rather后面也可跟从句表示主语宁愿某人做某事。
这时, 从句谓语应用虚拟语气, 即用一般过去时表示现在或将来要
做的事; 用过去完成时表示已经做过的事或过去要做的事。[用法3]: would … rather than… =would rather…than…
Facing the enemies, our soldiers would die rather than surrender.
面对敌人, 我们的战士宁死不屈。
Rather than refuse to help you, I would borrow money from my friends.
我宁可向朋友借钱, 也不愿拒绝帮助你。eg: I’d rather you hadn’t told him the news that day.1 — Do you mind if I open the window?
— _____. I feel a bit cold.
A. Of course not.
B. I’d rather you didn’t.
C. Go ahead. D. Why not?
答案: B
I’d rather you didn’t. (我宁愿你不要去做) 用来表示比较客气的阻止
或拒绝。
2 We would rather our daughter __________at home with us,but it is her choice,and she is not a child any longer.
A would stay B has stayed C stayed D stayC
8 confuse 动词, 表示“把(某人)弄糊涂; 使迷惑”, “搞乱; 混淆”。
如: 1).They asked me so many questions that they confused me.
他们问我那么多问题把我都弄糊涂了。2).My Chinese and English books are confused together.
我的中英文的书籍混在一起了。
3).He was confused by a strange idea.
他被奇怪的念头弄糊涂了。
4).Please don’t confuse Australia with Austria. 别把澳大利亚和奥地利混淆了。【拓展】
confusion n. 混乱; 慌乱; 混淆
confusing和confused辨析:这两个词都是由confuse 转化而来的形容词。
confusing (difficult to understand; puzzling),
强调事物本身所具有的性质;
confused (unable to think clearly)”, 强调人对某事物的感受。9 regret 在句中作动词, 意为“为……感到遗憾; 后悔; 惋惜”。如：
I didn’t regret the choice I had made.
我做了这个选择并不后悔。
I regret to say that we can’t stay here any longer.
我很遗憾, 我们不能再在这儿多呆了。
She regretted having missed the film.
她懊悔没能看上那场电影。 【拓展】
regret to do sth 表示“遗憾地要……”，
后面的动词常是say, tell, speak, inform等;
regret doing sth 表示“后悔做过……”;
to one’s regret 令人遗憾的是---Robert is indeed a wise man
---Oh,yes,How often I have regretted________his advice!
A to take B taking C not to take D not takingDturn to 求助于，转向 10 … many customers are beginning to turn to
organic farming.I tried to stand on my own two feet rather than turned to my parents.
We can turn to him for help. turn on 打开， 开启 turn off 关掉 turn down 调小 turn up 调大
turn against sb./sth. 转而讨厌、反对某人某事
turn out to be 最后果，最终成为
turn into sth. 使......变成 turn in 交还，交回 turn back 掉转头 turn over翻转 Complete the passage with the following wordsdisturbing expand output struggle battle grain crops
decade equip In the past __________,some of the farmers in the west of
China have met with some success in the ________ against
the _________desert. _________with new scientific farming
methods,they have been able to use less farmland than in the
past. Their________of __________and other__________,
however,is still the same,which makes it possible for them to use
the remaining farmland for planting trees. These and other
farmers are starting to win small_________in the great war
against the __________growth of the desert.decadestruggleexpandingEquippedoutputtgraincropsbattlesdisturbing1 _________ brown (skin) from spending too much time in the sun
2 ________ to make something or somebody free of
3 _________ to become larger in size, number or amountsunburntrid…ofexpand Find the word or phrase from the text for each of these meanings.competition4. ________ to make information and ideas known to many people
5. ___________would prefer to
6. ________ to try extremely hard to achieve somethingcirculatewould ratherstruggle7. ______ to send things to foreign countries for sale
8. ___________ pleased by having what one wants or needs
9. ______ to provide with things necessary for a certain purpose
10. _____ plants grown in large amounts by farmers
11. _________ because of
exportsatisfied withequipcropthanks to
Expressions 1. 化肥
2. 对……造成损害
3. 洗掉某物
4. 导致; 造成(后果); 通往
5. 逐渐增强, 建立
6. 另外(还有)
7. 使……免受(影响);
8. 集中(注意力、精力)于
9. 每隔几年
10. 避免做……
chemical fertilizers
cause/do damage to
wash off
lead to
build up
in addition (to)
keep…free from/of
focus on
every few years
avoid doingcause/do damage to, wash off, lead to, build up,
in addition ( to ), keep…free from/of, focus on,
avoid doing1. His mistakes ______ his failure.
2. These chemicals in the food supply________
in people’s bodies over time.
3. All roads _______ Rome.
4. Please _____ your mind ___ the following
problem.
5. Children should ________________ violence.led tobuild 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.cause/do damage to, wash off, lead to, build up,
in addition (to), keep…free from/of, focus on,
avoid doingIn additionin addition to washingoffavoid meetinghas causeddamage tothank you课件27张PPT。 必修 4 unit2The V-ing Form as the Subject and the Object
(-ing形式作主语或宾语)理解并掌握动词Ing 形式作主语和宾语的用法。
本节课开头让学生完成预习案，并呈现 V-ing形式作主语或宾语的谚语或句子，让他们明白动词V-ing形式作主语或宾语时，句法功能上具有名词的功能。并通过练习，让学生自我归纳V-ing形式作主语时，谓语的单复数如何变，重点区分forget,remember等动词后接V-ing短语作宾语和接不定式to用法的不同。
课件中配备了大量的难度适当的练习，让学生马上学以致用，也能及时发现问题，解决问题，最终掌握对此语法的综合运用。
Ex1. Fill in the blank. 1)学习新单词对我来说非常重要。
__________________ is very important for me．
2)说比做容易。
___________ is easier than doing.Learning new wordsTalkingIt is useless trying to argue3) 和夏洛克争辩是没有什么用的。
_______________________________ with Shylock 预习案:4)_________(play)with fire is dangerous.Playing5)The doctor advised ______ ( stay ) longer
in hospital.
staying6)He didn’t feel like _____ ( work ), so he suggested _____ ( spend ) the day in the garden.
workingspending7)His other hobbies include _________ (swim) and _________ ( read).
swimmingreading 8)Dr. Yuan searched for a way to increase rice harvests without _________ (expand) the area of the fields. expandingEx2. Compare the sentences and write down the meaning of the phrases.
I forgot mailing your letter.
I forgot to mail your letter.He tried working out the problem another way.
He tried to open the back door with the key.The batteries in that toy need changing.
You need to take more exercise.The teacher went on to talk about –ing form after a short break.
The headteacher went on talking for one hour.
Ex3. Write down the meaning in chinese.forget doing
forget to do
mean doing
mean to do
need doing
need to do
go on doing
go on to do
try doing
try to do Have you ever seen these signs?parking, spitting, littering, smoking-ing formsWhat about these sentences? 1. Saying is easy. Doing is difficult.
2. Seeing is believing.
3. Teaching is learning.
4. Lying is a bad habit.
5. Doing morning exercise is important.
6. Learning English needs practice. As the Subject 作主语
观察下列句子，对比并尝试找出变化规律。
1. Wishing for things, however, costs noting.
2. Since then, finding ways to grow more rice has been his life goal.
3. Reading aloud is a good way in learning language.
4. Getting up early is a good habit. 探究案：5.It is a waste of time talking about that with her.
6. It is useless learning without practice.
7. It is no use crying over spilt milk.自我归纳：
1. 动词-ing形式作主语，通常位于句_____, 谓语动词用________数形式。
2. 用____作形式____语, 真正_____语-（整个动词-ing形式短语）位于句_____。首单it主主末固定搭配：
1) It + is/was + a waster of time doing sth. 做……浪费时间。
E.g. It is a waste of time talking about that with her.
2) It + is/was + useless doing sth. 做…没用。
E.g. It is useless learning without practice.
3) It + is/was + no use doing sth. 做…没用。
E.g. It is no use crying over spilt milk.As the Object 作宾语
观察下列句子，对比并尝试找出变化规律。
1. Have you finished cleaning the classroom?
2. He enjoys listening to violin music swimming and reading.
3. As a young man, he saw the great need for increasing the rice output.自我归纳：
动词-ing短语作动词的宾语，常见的词和词组有： avoid, miss, put off, suggest/advise/recommend, finish, practise，enjoy, imagine, can’t help, admit, deny, envy, escape, risk, excuse, bear, keep, mind等。
2. 动词-ing短语作介词的语，常见的短语有devote…to, get down to, object to, pay attention to, succeed in, stick to, set about, think about/of, lead to等。记忆诀窍：
接动词-ing作宾语的动词，记忆歌谣：
避免错过少延期，建议完成多练习；
Avoid, miss, pu off; suggest/advise/recommend, finish, practise
喜欢想象禁不住，承认否定与妒忌；
Enjoy, imagine, can’t help, admit, deny, envy;
逃避冒险莫原谅，忍受保持不介意
Escape, risk, excuse; bear, keep, mindSummary 小结：
动词-ing形式可以用作句子的主语和宾语：
1.动词-ing形式作主语，通常位于句首, 谓语动词用单数形式。我们也可用it作形式主语, 真正主语——整个动词-ing形式短语）位于句末。
2. 动词-ing短语作动词的宾语，动词-ing短语也作介词的宾语。按要求补全句子：
I forgot _________to her.(我忘了曾经给她写过信）
I forgot __________her about it.(我忘了要告诉。）
I remember________ you somewhere in biejing.（see）
Remember _______me tonight.(call)
He regretted__________ in the exam.(cheat)
I regret _______that we can’t stay here any longer(say)writingto tell seeingto callcheatingto say
动词-ing形式可以用作句子的主语和宾语：
1.动词-ing形式作主语，通常位于句首, 谓语动词用单数形式。我们也可用it作形式主语, 真正主语——整个动词-ing形式短语）位于句末。
2. 动词-ing短语作动词的宾语，动词-ing短语也作介词的宾语。Task 1 Complete the sentences with the given words in proper forms.
1.Fancy Mary _____ (do ) a thing like that !
2._____ ( take ) physical exercise every day is profitable to our health .
3.That is a matter of importance , it wants ______ ( handle ) carefully .
4.?Her not __________ (come back ) made us disappointed .PractisedoingTakinghandlingcoming back训练案：5. He got well-prepared for the job interview, for he couldn’t risk _______ (lose) the good opportunity.
6. Mr Smith agree__________(help) us with our science project.
7. The key to solve the problem is to meet the demand ______(make) by the customers.
8. The parents suggested ________(sleep) in the hotel room but their kids were anxious to camp out during the trip. losingto helpmadesleepingTask 2 Fill in the blank with correct phrases. 用正确的短语填空。
1)_________________（与我争论）takes much of my little brother’s time.
2)____________________________(在阅览室大声朗读) is a bad habit.
3)I’m looking forward to ______________ (有一个美好的假期).
4). In some parts of London, __________（错过一辆公交车） means waiting for another hour. Arguing with me Reading aloud in the reading-roomhaving a good holiday missing a bus Group work: Imitate the above sentence and write down your own sentence.
例句
1：Using cocaine increases the user’s heart rate and blood pressure. 吸食可卡因会使使用者的心率提高，血压上升。（使用动词-ing形式作主语仿写）
仿写1：___________________________
仿写2：_____________________________例句2：It is a waste of time talking about that with her.
跟她讨论那件事很浪费时间。
（使用it作形式主语，动词-ing形式作真正主语仿写）
仿写1：______________________________
仿写2：______________________________
1. Finish off the exercises in the paper.
2. Recite the words in Unit2.
3. Prepare for the next passage课件32张PPT。 Unit 2 Working the land
231.Master the following new words, phrases and sentences in using language
production, bacteria, pest , nutrition, discovery, soil, root
regret, reduce, regret
build up, keep…free from, lead to, focus on, in addition
Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil…
2. Learn the advantages of organic farming.
本课首先观看嘉世有机农业视频，引出本节题目“化学耕作还是农业耕作”。进而讨论化学耕作和有机耕作的概念。化学耕作的弊端是什么？为什么农民转而开始有机耕作？有机耕作通过什么方法来保持土地的肥沃？然后让学生听课文录音，了解短文的主旨以及各段的大意。最后讲解短文的语言点。最后通过改写的短文加深对本文的了解。
讲解农业耕作是配有相关的视频，有助于学生理解。总结概括文章和段落大意，提高学生的理解和表达能力。听课文录音有助于学生听力水平的提高。
ReadingCHEMICAL OR ORGANIC FARMING?What can we harvest? No pains, no gains.嘉世有机农业Add fertilizer into the soil How can farmers make the plants grow well?How many kinds of fertilizers do farmers use? natural fertilizer
organic farmingchemical fertilizer
chemical farmingTwo kinds. Discussion: Which kind of farming is better?BetterLet’s learn more about chemical and organic farming! Listen to the tape carefully.using language readingorganic farming is
becoming more popular. The main idea of the text:Fast ReadingLong-term use of chemical fertilizers can
cause damage to the land and people’s health.Problems caused by chemical fertilizers.The main idea of each paragraphP1.P2.Farmers and customers turn to organic
farming.Other methods to keep the soil fertile. P3.P4.Careful ReadingWhy are chemical fertilizers so popular in farming today?
Because they are cheap.
They are a good way to stop crop disease and increase production.
They can cause damage to the land.
They do good to people’s health.
Paragraph IChemical farmingstop crop
disease
increase
productiondamage the
landby killing the helpful bacteria and pests as well as the harmful ones.affect cropsby staying in the ground and underground water for a long timelead to cancer
/illnessesby building up in people’s bodies over timehave less
nutritionby growing too fastParagraph 2Organic farming Natural waste from animalsMake the soil richer in minerals and
more fertileA healthy soilReduce diseases in cropsHelp crops grow strong and healthyParagraph 3Organic farminguse natural wastemake the soil rich
in mineralschange the cropput minerals back
into soil, making…plant crops with
different rootsuse different levels
of land plant grass between cropsprevent…from…,
a natural fertilizerParagraph 41. Which statement is WRONG
according to the text?
A. All crops are organic.
B. Recently, the term “organic farming”
has gained another meaning.
C. All farmers use fertilizers.
D. Scientists believe some chemical
fertilizers are better for people.Read again and choose the best answer. D2. Which is not the reason why organic
farmers prefer natural waste from
animals?
A. It can keep the food free from
chemicals.
B. It can keep the air, soil and water
free from chemicals.
C. It can kill harmful pests.
D. It can make the soil richer in
mineral.C3. What is the advantage of using
chemical fertilizers?
A. Leaving chemicals in the ground
for a long time is good for water supply.
B. They can get the soil exhausted.
C. They can kill helpful bacteria.
D. They can kill harmful pest. D 4. The organic farmers do the followings
except ______.
A. adding fertilizers which is rich in mineral
B. changing crops every two or three years
C. planting seeds in different layers of the soil
D. planting grass between crops to prevent
the soil from being blown awayA 1. What is “organic farming”? Answer the questions.It refers to crops growing with natural rather than chemical fertilizers.2. What do organic farmers prefer to
use as fertilizer? Natural waste from animals.Because peas and beans
can put minerals back into the soil,
making it rich and healthy and ready
to grow more wheat or corn.3. Why do organic farmers grow peas or soybeans after corn or wheat?4. What is the main goal for using
organic farming methods?To grow good food and to avoid damaging
The environment or people’s health.? No use of chemical fertilizers
? Away from industrial areas
? Away from dirty water supply
? No air pollutionA summary of organic farming:Fill in the blanks
Many farmers welcome ______ fertilizers because they are
great way to stop crop disease and increase _________.But
these chemical can ____ to illnesses. So farmers began to
turn to ______ farming. They ____ on keeping their soil
rich and _____ of disease. Organic farmers often prefer
using ______ waste of animals as fertilizer. This keeps
the soil free ____ chemicals. There are many methods
to keep the soil _____. The methods have the same goal:
to grow good food and avoid damaging the _________
or people’s health. chemicalproductionfocusfreenaturalfromfertileenvironmentleadorganic1. These chemicals in the food supply
build up in people’s bodies over time.Language PointsHard working conditions build up
character. build up ?增强; 建立; 开发 艰苦的工作条件能磨练人的性格。2. Many of these chemicals can lead to
cancer or other illnesses.
All roads lead to Rome.? lead to 导致；造成
条条大道通罗马。3. They focus on keeping their soil rich
and free of disease.focus on: 集中(注意力, 精力等)于You should focus your attention on
your work.把注意力集中在你的工作上。
4. This also keeps the air, soil, water and
crops free from chemicals.
4. You must take care to keep the wound
free from the dirt. keeps… free from /of: 使…免受
(影响, 伤害等); 使不含(有害物)你必须照顾好伤口，免受灰尘的伤害。5. reduce v. 减少, 降低
e.g.公司尽力通过减少花销来提高利润。
The company tries to increase profits by
_______________ .
今年我们已经减少了业务开支。
We ______________ expenses this year. reducing costshave reducedExpressions 1. 化肥
2. 对…造成损害
3. 洗掉某物
4. 导致; 造成(后果); 通往
5. 逐渐增强, 建立
6. 另外(还有)
7. 使…免受(影响);
8. 集中(注意力、精力)于
9. 每隔几年
10. 避免做…chemical fertilizers
cause/do damage to
wash off
lead to
build up
in addition (to)
keep…free from/of
focus on
every few years
avoid doingExercises wash off, lead to, build up, in addition(to),
keep…free from/of, focus on, avoid doing1. His mistakes ______ his failure.
2. These chemicals in the food supply________ in people’s
bodies over time.
3. All roads _______ Rome.
4. Please _____ your mind ___ the following problem.
5. Children should ________________ violence.
led tobuild upfocus onlead tobe kept free fromin additionwashing offavoid meeting6. He likes basketball, __________, he likes 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.HomeworkWrite an article about future farming.Thank you!
