人教版英语必修4 Unit 2 Working the land language points课件（共55张）

课件55张PPT。人教课标版必修4Unit 2 1. Enable students to learn key words & expressions and
sentence structures2. Help Ss learn how to use these words and expressions freely to express their ideas and use the -ing form as subject and object as they like.
3. Enable Ss to use the important sentence structure either in orally or in writing.Step I Revision What did we learn about Yuan Longping yesterday?
2. What can we learn from him?
3. Read the whole passage Work the land = to use the land to get its resources. Such as through farminge.g. He works a big farm.
他经营着一个大的农场Step II language points2. Although he is one of China’s most famous scientists, Yuan Longping considers himself a farmer, for he works the land to do his research.
[分析]
①这是一个含让步状语从句的主从复合句。其结构为: 让步状语从句(Although he is one of China’s most famous scientists)+主句(Yuan Longping considers himself a farmer)。
②主句中包含“consider + 宾语 + n.”结构。③ for引导的从句并不表示原因, 而只是为主句中所说的话提供推断的理由, 加以解释, 此时for前要加逗号。
e.g. The shop was quite new, for it had opened only the week before.
work vi./ vt. 经营, 管理
work the land=grow crops on it 耕耘土地　
e.g. He works a big farm. 他经营着一个大的农场。3. … for whom he has struggled for the past five decades.
常与现在完成时连用的时间状语:
(1) already, yet, ever, just, recently, lately, never, before (adv.)
e.g. The boy has already/just got home.
I haven’t heard from him yet /recently / lately.
I have seen the old man somewhere before.(2) since/for
I have lived in Beijing since 2000.
I have lived in Beijing since I arrived here.
I have lived in Beijing for 5 years.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
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 for4. 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.5. Dr Yuan is quite satisfied with his life.
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)6. 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 　　
7 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。8 regret 在句中作动词, 意为“为……感到遗憾; 后悔; 惋惜”。
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 9 … 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.decadestruggleexpandingEquippedoutputtgraincropsbattlesdisturbing10. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output.

the first ... to do sth. 意为“第一个做……”。本句中动词不定式(to grow rice) 作定语, 修饰 the first agricultural pioneer。the first, the last, the second, the only等短语后面多用动词不定式作后置定语。[仿写] __________________________ __________________________ ___________________________
(公元950年第一个到达新西兰的旅行者是一个叫库佩的人。) The first traveler to reach New Zealand in the year 950 was a man whose name was Kupe.11. This special strain of rice makes it possible to produce one-third more of the crop in the same fields.
make it +宾语补足语+动词不定式, it 做形式宾语, 动词不定式是真正的宾语。
it做形式宾语, 通常和下列动词连用:
consider, think, make, find, believe, count, declare, deem, fancy, feel, guess, imagine, judge, prove, see, show, suppose, understand, take等。We consider it our duty to support good leaders.
The new method makes it possible to complete the task faster.
Tom found it very embarrassing to be reminded of the long-standing debt.
Susan deemed it advisable to keep the matter secret.
We all feel it nice to be able to visit that distinguished university.12. rid…of …用法
[寓词于境] 阅读下列句子，注意rid ... of的意思和用法。
1. The man rid himself of debt.
2. It is very hard for the people to rid the earth of pollution.
3. The dentist rid him of his pain by taking out the tooth. [自我归纳] rid ... of的意思是“__________”，此时, rid为___词。
常构成短语rid oneself of sb. /sth.，意为“摆脱、从……中解脱”(句1)；rid sb. / sth. of sb. / sth.意为“去除、清除”（句2、句3）。动摆脱、除去[注意] rid还可以作名词, 构成短语get rid of, 意为“摆脱掉、除掉、处理掉”。如:
It’s easy to get into the habit of taking drugs but hard to get rid of it.
We can’t get rid of war until we get rid of the causes of war. [即学即练] 每空一词，完成句子，使其与所给的句子意思相同或相近。
1. It is not easy for him to get rid of the bad habit.
It is hard for him to ___ ______ __ the bad habit.
2. He plans to give up smoking in two months.
He plans to _________ _________ __ smoking in two months.get rid of / rid himself ofrid himself of13. Using his hybrid rice, farmers are producing harvests twice as large as before.
英语中的倍数表达法共有三种形式:
(1) 倍数 + 形容词/副词的比较级 + than...
(2) 倍数 + as +形容词/副词的原级 + as...　(3) 倍数 + the + 名词+ of...
This building is five times higher than that one. 这座楼比那座楼高出五倍。
This building is five times as high as that one. 这座楼是那座楼的五倍高。This building is five times the height of that one. 这座楼是那座楼的五倍高。
The new building is four times the size of the old one.
It is reported that the United States uses _______ energy as the whole of Europe.
A. as twice?? ?? B. twice much??
C. twice much as? ?? D. twice as much14. He would much rather keep time for his hobbies.
[寓词于境] 阅读下列句子，注意would rather的意思和用法。
1. Would you rather walk or take the bus?
2. I would rather choose to give up than give in to him.
3. I would rather write to him than call him.
4. I would rather you came with us.
5. I’d rather you didn’t go out alone.[自我归纳] would rather意为“更喜欢”(句1)、“__________”(句2、句3、句4、句5); 常用结构为_________________________ (句2、句3); 另外，would rather 后还可跟从句，用虚拟语气(句4、句5)。would rather do ... than do ...宁愿、宁可[即学即练] 翻译下列句子。
1. 她宁愿死也不愿意演讲。
2. 我宁愿你现在回家。
3. 我宁愿你昨天没做那件事情。
She would rather die than give a speech.
I would rather (that) you went home now.
I would rather (that) you hadn’t done that thing yesterday.[考例] To enjoy the scenery, Irene would rather spend long hours on the train ___ travel by air.
A. as B. to C. than D. while
[点拨] 选C。考查句式would rather do ... than do ..., 意为“宁愿做(前者), 而不愿做(后者)”。题意为“为欣赏风景, Irene宁愿花很长的时间坐火车而不愿乘飞机”。15. He enjoys listening to violin music, playing mah-jong, swimming and reading.
[考点] 动词-ing形式作宾语。
[考例] After he became conscious, he remembered ___ and ___ on the head with a rod.
A. to attack; hit
B. to be attacked; to be hit
C. attacking; be hit
D. having been attacked; hit[点拨] 选D。remember doing sth.表示“记着做了某事”(事已完成)；且he和attack与hit之间是动宾关系，故用被动语态。remember to do sth. 表示“记得要做某事”(此事未做)。 16. Indeed, he believes that a person with too much money has more rather than fewer troubles.
rather than 而不是
e.g. Mary, rather than her roommates, is going to Beijing.
要去北京的是玛丽, 而不是她的室友们。 注意: rather than 连接两个名词或代词作主语时, 谓语动词应与rather than前面的名词或代词在人称和数上保持一致。
She ran rather than walked. 她跑着而不是走着。He is a student rather than a worker.
他是学生, 不是工人。?
They lost some books rather than money. 他们丢了一些书, 而不是钱。
I decided to write rather than (to) telephone. 我决定写信而不打电话。17. He therefore gives millions of yuan to equip others for their research in agriculture.
[考点] therefore adv. 因此；所以；
因而，表示因果关系。[考例] Progress so far has been very good. ______, we are sure that the project will be completed on time.
A. However B. Otherwise
C. Therefore D. Besides [点拨] 题意是“至今情况进展良好，因此我们确信能按时完成这项工程。” 前后两句为因果关系，故选therefore；however然而，可是；otherwise否则，要不然，二者均表示转折关系；besides而且，也不符合题意。ExercisesI. 根据下列各句句意及所给单词的首字母或汉语提示, 写出所缺单词的正确形式。
1. We were all _________ (晒黑的) from a day on the beach.
2. She’s s________ to bring up a family alone.sunburntstruggling3. The measures will enable us to increase our o_____ of bicycles soon.
4. He was down with the flu, and ________ (因此) couldn’t come to the party.
5. The d________ problem has been making him hard to sleep every night. disturbing outputtherefore6. In ten years the city’s population e_______ by 12%, which has made the city more crowded.
7. Although he speaks English fluently, he is not of British or American _________ (国籍).
8. Please state your name, address and _________ (职业).expandednationalityoccupation9. Our products are ________ (出口) to Southeast Asia to gain more benefits.
10. Blood ________ (循环) in the body until life stops. circulatesexportedII. 每空一词，完成句子，使其与所给的句子意思相同或相近。
1. His explanation satisfied everyone present at the meeting.
Everyone present at the meeting ___ _______ ____ his explanation. was satisfied with2. There is a color TV in each classroom in our school.
Each classroom in our school __ ________ ____ a color TV.
3. The last ten years of the 20th century saw the development of the company.
The last ______ of the 20th century saw the development of the company. decadeis equipped withIII. 根据括号内的汉语提示，完成下列句子。
1. ________________ (使我们满意的是), they finished the work in time.
2. Today ________ (幸亏) the Internet, you can do all your Christmas shopping from home.To our satisfactionthanks to3. He went to many big cities ______________________________ (带着找一份好工作的希望).
4. ____________________ (出生于一个贫困的家庭), he had to do part-time work for living while studying at school.
5. His coming added to our trouble __________ (而不是) freedom. rather thanwith the hope of finding a good jobBorn into a poor familyIV. 根据括号内的提示翻译下列句子。
1. 我倒宁愿他告诉了我这件事。(would rather)
2. 我们必须除去花园的杂草。(rid ... of)I’d rather he had told me about the matter.
We have to rid the garden of weeds. 3. 我们必须与各种困难作斗争。(struggle against)
4. 卧室是厨房的两倍大。(as ... as)We must struggle against all sorts of difficulties.
The bedroom is twice as big as the kitchen. 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 toHomework1. Finish Guidance on learning.
2. Read the passage again and again, trying to understand the words and expressions in bold letters.