必修4 Unit2 课文知识点解析

必修4 Unit2 课文知识点解析
(Unit 2 working the land
Page 10
1. Indeed, his sunburnt face and arms and his slim, strong body are just like those of millions of Chinese farmers, for whom he has struggled for the past five decades.
1). struggle: to try extremely hard to achieve sth, even though it is very difficult
搭配：struggle for争夺； struggle against与…作斗争
struggle to do sth
(=make great efforts to do sth.) 努力做某事
struggle to one’s feet挣扎着站起来
eg: She's struggling to bring up a family alone
Millions of people are struggling for free.
He has been struggling with/against illness for many years.
2. Dr Yuan Longping grows what is called super hybrid rice.
= Dr Yuan Longping grows the rice that is called hybrid rice
= Dr Yuan Longping grows the rice called hybrid rice
1) what引导的名词性从句，相当于名词的作用，可作主语、宾语、表语，且what在从句中可作主语，宾语、表语。

What you need is time and money.
I want to know what happened.
He is not what he was.
辨析：what既起引导作用，又做成分，相当于the+名词+定语从句
What we need is time.
= The thing that we need is time.
3. In 1974, he became the first agricultural pioneer in the world to grow rice that has a high output.
the first+n.+to do …第一个要做…的…
不定时放在表示次序的词the first, the last以及其他如the only, the very, the right等所修饰的名词后面，这些名词与动词不定式之间有逻辑上的主谓关系。

eg: He was the first one to come into the classroom.
此种不定式相当于定语从句，如：
He was the first teacher to come.
= He was the first teacher who came.
[当堂练]
1. The company is the first _C__ sports cars in this country.
A. makes
B. making
C. to make
D. having made
2. ---The last one __D__ pays the bill.
---Agreed!
A. arrives
B. will arrive
C. arriving
D. to arrive
3. This special strain of rice makes it possible to produce one-third more of the crop.
make it +宾补+动词不定式
在这一结构中，it是形式宾语，动词不定式是真正的宾语，有是真正的宾语是从句
I make it a rule to get up early every day.
He keeps it in mind that he must find ways to increase the output to meet demand ®同理：it做形式主语，也只能替代“to do”和从句。

【当堂练】
I've often__A____ that he has great concern for his comrades.
A. heard it said
B. heard said
C. heard said it
D. heard it say
I like __C___ in the autumn when the weather is clear and bright. (全国卷2004)
A. this
B. that
C. it
D. one
4.At that time, hunger was a disturbing problem of the countryside.
disturb v.使焦虑，使不安
eg:I didn't like to disturb you
5.Thanks to his research, the UN has more tools in the battle to rid the world of hunger.
rid…of …使…摆脱/清除…
eg: rid a house of mice 清除室内老鼠
a promise to rid the country of nuclear weapons
®be/get rid of处理
eg: get rid of the mouse in the house.
ing his hybrid rice, farmers are producing harvests twice as large as before.
1)Using his hybrid rice此处为现在分词做状语，其逻辑主语为主句的farmers ,表主动，用ing形式。

2) as large as是倍数表示法。

7. Indeed, he believes that a person with
too much money has more rather than fewer trouble.
8. He therefore gives millions of yuan to equip others for their research in agriculture.
eg: It is time to equip the school with
air-conditioners
®equipment n.
1. What did farmers think of chemical fertilizar originally?
2. What bad effect do c f have?
3. What is organic farming in short?
4. How do organic farmers keep the soil rich and fertile?
5. What is the purpose of farmers’ growing grass?
Recently, however, scientist have been finding that long-term use of these fertilizer can cause dam age to land and even more dangerous to people’s health. In addition, fruit,…food grown with chemical fertilizers usually grow too fast to be full of much nutrition.
Some organic farmers prefer planting grass between crops to prevent wind or water from carrying away the soil, and then leaving it in the ground to become a natural fertilizer for the next year’s crop.
focus… on…:集中(注意力，精力等）于…;聚焦于…
You should focus your attention on your work.
把注意力集中在你的工作上。

keep … free from /of:使…免受(影响，伤害等)；使不含…
Parents are always try to keep their children free from any harm.
The machine can clean water and keeps water free from harmful materials.。