Unit 2 Topic 2 All these problems are very serious.Section D 课件(共22张PPT) 2023-2024学年英语仁爱版九年级上册

(共22张PPT)
Unit 2
Saving the Earth
Topic 2 Section D
学习导航
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新课导入
water pollution
新课导入
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 …
新知学习
课堂小结
当堂检测
学习目标
重点研讨
学习目标
1.能熟悉并正确运用本课时的重点单词和短语
2.能巩固不定代词和副词的用法
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课堂小结
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_______ 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.
Indefinite Pronoun and Adverb
Grammar
None
anywhere
everything
Everyone
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______ 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.
Functions
into
blowing
away
here and there
so
As
新知学习
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1a
Read the passage and put the followng 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
3
2
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( ) 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
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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 are they
To find cheaper ways of taking the salt away from the sea water.
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2
Discuss in groups different ways of protecting and saving water. Write down the key information.
Example:
1. Pass laws against water pollution.
2. Collect and reuse waste water.
… …
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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.
_________
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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.
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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 results.
Project
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Key points
1. The sea seems to have the best answer.
海洋似乎有最好的答案。
seem v. 似乎是，其近义词：appear
常见结构：① seem+(to be) +表语。
eg: He seems (to be) quite happy. 他似乎很快乐。
② It seems that + 从句。
eg: It seems that he is quite happy. 他似乎很快乐。
③ seem to do sth.
eg: He seemed to enjoy himself. 他好像很愉快。
新知学习
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当堂检测
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2. There is plenty of water in the sea. But we need to take the salt
away from the sea water.
在海里有大量的水，但是我们需要将海水中的盐提取出来。
plenty of 大量的，许多的，后接可数名词复数或不可数名词。
take… away from 从……拿走……
新知学习
课堂小结
当堂检测
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3. How can we avoid a serious water shortage
我们应该怎样避免严重缺水的问题呢？
avoid v. 避免，避开 + n. / v.ing；
eg: Try to avoid speaking loudly in the office.
尽量避免在办公室大声喧哗。
新知学习
课堂小结
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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.
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。
新知学习
课堂小结
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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。
Grammar
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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.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Unit 2
Topic 2 Section D
巩固不定代词和副词的用法
学习怎样保护水资源以及节约用水
根据句意及汉语提示完成句子。
1.As we know, _____ (无一人) of us likes pollution.
2.In Sweden, it is against the _____ (法律) to hit a child.
3.A lot of rich land has changed into desert, leaving only _____ (沙子).
4.________(虽然) we have built the Great Green Wall, we still need to
work hard to protect the environment.
5.After a long journey, we felt hungry and _______(渴的).
新知学习
课堂小结
当堂检测
学习目标
重点研讨
none
law
sand
Although
thirsty