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2019-2020仁爱科普英语九年级上
Unit2topic2sectionD导学案
教学目标：
1.学习四会词汇和句型。
2. 总结不定代词和不定副词的用法。
3. 认识垃圾污染的危害，让学生意识到环境保护的重要性。
教学重点:
总结不定代词和不定副词的用法。
复习总结表示原因与结果、建议的功能句型和用法。
3.短语、词组的用法。
教学难点：总结不定代词和不定副词的用法。
一单词填一填
1. Have you noticed the _________ (die/dead) fish in the river?
2. The bad air made her difficult to___________ (breathe/breath).
3. I am busy. I have_________(too many/too much) homework to do.
4. _________ (Cutting/ Cut ) down trees is bad for human beings, animals and plants.
5. My father will give _________ (in/up) smoking.
二选择选一选
( )1.You _____keep the water running all the time, because you’re wasting water.
A. ought to B. ought not C. not ought D. ought not to
( )2.After the hard work, what we want is ______a rest.
A. have B. has C. had D. to have
( )3.They were all very tired, but ______of them took a rest.
A. none B. nobody C. all D. both
( )4. I bought a computer last year. I ______ it for one year.
A. have had B. have bought C. bought
( )5. Trees can stop the water from _____ the earth away.
A. wash B. to wash C. washing
( )6. I have _____ to tell you.
A. important something
B. something important
C. anything important
三．句型转换 .
1. We shouldn’t throw rubbish everywhere.（同义句转换）
We shouldn’t throw rubbish _____ and _____.
2. Hurry up. You will miss the bus.（合为一句）
up, you will miss the bus.
3. The population of China is 1.3 billion. (对画线部分提问)
the population of China?
4. I have already seen the film. (改为一般疑问句)
Have you _____ the film _____?
5. Did your father go to Japan?（改为现在完成时）
_____ your father _____ to Japan?
四．书面表达。
人类只有一个地球。根据提示，以“Saving the Earth”为题，写一篇80词左右的短文。
提示: 1.如何保护环境已成为世界最大难题之一；
2.各种污染破坏环境，损害健康；
3.不要乱倒垃圾，乱排废水；
4.我们应该保护环境，使我们的家园更加美丽。
参考答案
一单词填一填
1. dead 2.breathe 3. too much 4.Cutting 5. up
二选择选一选
D D A A C B
三．句型转换
1. here; there 2. Hurry; or 3. What is 4. ever; yet 5. Has; gone
四书面表达
Saving the Earth
How to protect the environment has become one of the biggest problems in the world. There are many kinds of pollution around us, such as air pollution, noise pollution, water pollution and light pollution. We can find that rubbish not only pollutes our environment but also harms people’s health. So we should not throw rubbish everywhere. Some factories pour waste water into the rivers and the lakes. The behavior of these factories will pollute the water, and sometimes it can kill the fish living in them.
We have only one earth. We must keep our environment clean and tidy. We must try our best to protect her, and make our home more beautiful.
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2019-2020仁爱科普英语九上Unit 2 Saving the Earth
Topic 2 All these problems are very serious.
SectionD
教学目标
：
1.学习四会词汇和句型。
2. 总结不定代词和不定副词的用法。
3. 认识垃圾污染的危害，让学生意识到环境保护的重要性。
shortage n.不足;缺少;短缺 ['??:t?d?]
avoid v.防止,避免 [??v??d]
resource n.资源,财力 [r?'s?:s]
discover v.发现,找到 [d?s'k?v?]
thirsty adj.缺水的,渴的 ['θ??sti]
law n.法律，法令；定律 [l??]
new words
Indefinite Pronoun and Adverb
_______of us likes pollution.
Don’t spit ___________ in public.
_________ should care for wild animals and plant more trees.
We should do ___________ we can to protect the environment.
None
anywhere
Everyone
everything
Grammar
Indefinite pronoun and adverb 不定代词和副词
一、构成。
不定代词、副词是由some, any, no, every与thing, one,
body, where 等构成。
E.g. something, someone, nowhere, anybody等。
二、用法。
1．通常情况下,由some, every加后缀构成的不定代词、
副词常用于肯定句；由any加后缀构成的不定代词、副
词常用于疑问句、否定句中。
E.g. You will find your bag somewhere.
Can you hear anything?
2. 注意：当说话人希望得到肯定答复,或是表示建议、请求等意图时,something, somebody, someone也可以用于疑问句中。当要表达“任何人；任何事物”时,anything, anybody, anyone也可以用于肯定句中。
E.g. Would you like something to drink?
Anybody can do it except Tom.
1. —Which would you like to drink, tea or coffee?
—________, thanks. I’m not thirsty.
A. Either B. Neither C. Little D. Few?
2. The students are doing some cleaning. Some
are sweeping the floor, ________ are cleaning the
desks and chairs.
A. other B. the other C. another D. others?
3. My parents are ________ doctors.
A. both B. all C. either D. neither
4. There is ________ with my computer. Can you help me?
A. wrong anything B. anything wrong
C. wrong something D. something wrong
5. The wind was blowing strongly. ________ people
walked in the street.
A. Little B. A little C. Few D. A few
6. Hurry up. There is ________ time left.
A. a little B. little C. a few D. few
Exercise
Functions
______ a result（结果）, a lot of rich land has changed _________ （变为）desert.
Trees can stop the wind from ______ the earth _____(吹走）.
We shouldn’t leave rubbish ___________(到处).
All these problems are very serious,_____(所以) we must do something now.
into
blowing
away
here and there
so
As
water pollution
Imagine you are water.
Please tell us your functions, problems and wishes.
I’m water. I used to be …
Factories usually pour …
I wish human beings …
1a Read the passage and put the following paragraphs in the correct order.
( ) The sea seems to have the best answer. There is plenty of water in the sea. But we need to take the salt away from the sea water. This is very expensive. If scientists can find cheaper ways to do it, we can solve the problem of the shortage of water.
( ) How can we avoid a serious water shortage? First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water. Scientists have made some progress in this field. Today, some large cities are reusing their water. But people’s need for water is increasing day by day. We still don’t have enough water. What else can we do?
( ) Although the world is hungry, it is even thirstier. While nearly ? of the earth is covered with water, we are still short of drinking water. This is because about 97% of the water on the earth is sea water. So we can’t use it for watering plants or drinking directly. Humans can only drink and use fresh water from places including rivers, lakes and underground.
1
2
3
名词
avoid 代词
动名词
v.防止，避免
v.发现，找到
e.g. He avoided answering my questions.
不定式不可以做宾语。
1. How can we avoid a serious water shortage? 我们如何避免水资源短缺呢？
2….we should discover ways to reuse water.我们需要找到再利用水的方法。
Language points
thirsty
adj.缺水的;（口）渴的
nearly
adv.几乎，将近
nearly 与almost 区别 ：
almost 多表示时间、程度、距离、进度， 且almost 可以修饰more than, too, nothing, nobody, nowhere, no one, none, never 等词，nearly 则不行。nearly只与not连用。
e.g. I have almost never seen him.
I nearly didn’t hear what the teacher said in class.
3.Although the world is hungry, it is even thirstier
虽然世界是饥饿的，但是他更渴。
4.While nearly ? of the earth is covered with water , we are still short of drinking water. 尽管地球差不多四分之三都被水覆盖，我们仍然缺少饮用水。
1b Read 1a again and answer the questions.
1.Why is our world thirsty when ? of the earth
is covered with water ?
2. What can we do now to avoid the water shortage?
Because about 97% of the water on the earth is sea water, we can’t use it for watering plants or drinking directly.
First, we should save water and not waste it. Second, we should protect our water resources and not pollute them. Third, we should discover ways to reuse water.
3.What will be the best way to solve the problem in the
future in the passage?
4.Do you know any other ways to solve the problem? What is
it?
To find cheaper ways of taking the salt away from the sea water.
2 Discuss in groups different ways of protecting and saving water. Write down the key information.
Example:
Pass laws( n.法律) against water pollution.
Collect and reuse waste water.
… …
3. Write a proposal about saving water to all the students in your school.
My dear friends,
Water is very important to human beings. Let’s do something to protect and save it.
First, ________ .
Second,_________.
Third, _________.
Let’s try our best to save water and our planet.
_____________
My dear friends,
Water is very important to human beings. Let’s do something to protect and save it.
First, we should protect our water resources and not pollute them. The government should also pass laws against the water pollution. Second, we should save water in our daily life, turn off the taps in time, take a shower instead of a bath, and always remember to collect and reuse water. Third, let’s try to spread the message about protecting and saving water. Make more people around us know the problem of water shortage and how to help solve it.
Let’s try our best to save water and our planet.
Student Union
You can write it like this.
Project
Making Posters About Natural Resources
Divide the class into several groups: Water Group, Tree Group, Soil Group …
Each group should discuss their own uses, the problems that they face and their wishes. Then give a report in class. Example:
Uses: I am soil. Plants can’t grow without me. People use me to make many things …
Problems: Sometimes people use too many chemicals in the fields. What’s worse, they put waste into the land … So I’m hurt. Please help me.
Wishes: I hope human beings can protect and take care of me. And then I could do more useful things for them…
3. Make some posters with the result.
If we want to use the sea water, we must ______ ___(拿走） the salt from the sea water.
How can we _________(避免) a serious water shortage?
We should __________(找到) ways to reuse water.
People’s need for water is increasing ____________(一天天).
Although the world is hungry, it is even ______(更渴的)
While ___________(几乎，差不多)? of the earth is covered with water, we are still short of drinking water.
take away
avoid
discover
day by day
thirstier
nearly
Exercise
We learn: 1. some words: avoid, discover, thirsty,
nearly, law
2. some phrases: day by day, be short of
3. some sentences:
(1)But people’s need for water is
increasing day by day.
(2)While nearly ? of the earth is covered
with water, we are still short of drinking
water.
We can: 1.Talk about ways of saving water.
2.Summarize and use the indefinite
pronoun and adverb correctly.
3. Write a proposal.
Summary
Read 1a.
Review the useful expressions and key sentences which we learn in this topic.
Preview Section A in Topic 3.
Homework
Thank you !
谢谢
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