(共19张PPT)
Unit 2 Saving the Earth
Topic 2 All these problems are very serious.
Section D
Language goals
By the end of the class, you will be able to
1.Master the following words ,phrases and sentences:
Words: avoid, discover, thirsty, nearly, law
Phrases: day by day, be short of
Sentences:①But people’s need for water is increasing day by day.
②While nearly of the earth is covered with water, we are still short of drinking water.
2. Master Indefinite Pronoun and Adverb
1.拿走,取走
2.谈及,说起;指的是
3.筹钱
4.穿过
5.在地球上
6.究竟,到底(用于疑问句后以加强语气)
7.全世界
8.温室效应
9.…的水平
10.四面八方,从各个方向
11.从......逃走
12.导致某人做某事
13.一个......另一个
1. take away
2. refers to
3. raise money
4. pass through
5. on the earth
6. on earth
7. all over/around/throughout the world
8. the greenhouse effect
9. the level of ….
10. in all directions = in every direction
11. escape from---
12. cause sb. to do sth.
13. one...the other
Revision in class
Grammar
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
thing body one where
some
any
every
no
Who can fill it quickly
something
somebody
someone
somewhere
anything
anybody
anyone
anywhere
everything
everybody
everyone
everywhere
nothing
nobody
nowhere
none
用于肯定句或表请求、建议的疑问句。
用于否定句或疑问句。
用于各种句型。
表否定。
表物
表人
表人或物
表地点
及时练习
1. When Anna opened her wallet, she was surprised to find ________.
It was empty.
A. nothing B. anything C. something D. everything
2. There's ________ wrong with the engine—it's making strange noises.
A. nothing B. anything C. everything D. something
3. Did you do __________ during the last summer vacation
A. something special B. special something C. anything special
A
D
C
______ a result, a lot of rich land has changed _________ desert.
Trees can stop the wind from blowing the earth _______.
We shouldn’t leave rubbish ______________ .
All these problems are very serious,_____we must do something now.
into
away
here and there
so
As
Functions
1a. Read the passage and put the following paragraphs in the correct order.
Paragraph One
Paragraph Two
Paragraph Three
3
2
1
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
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
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.
To find cheaper ways of taking the salt away from the sea water.
Turn off the taps in time.
Don’t throw litter into the water.
After we wash clothes or vegetables, we can reuse the water to clean the floor.
Pass laws against water pollution.
Collect and reuse waste water.
Stop the factories from pouring waste water into rivers.
Take a shower instead of a bath
Language Points
1. thirsty adj. 缺水的;(口)渴的 thirsty-thirstier-thirstiest
2. be covered with 被...覆盖
3. be short of 短缺
4. use sth. for doing sth. = use sth. to do sth. 使用某物做某事
5. avoid doing sth. 避免做某事
e.g. He avoided answering my questions.
6. 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只与not连用。
e.g. I have almost never seen him.
I nearly didn’t hear what the teacher said in class.
7. make progress in sth./doing sth. 在...方面取得进步
Language Points
8. day by day 一天天地,逐日
9. plenty of 大量 许多
10. seem to do sth. 似乎做某事 it seems that--- 似乎---
11. need to do sth. 需要做某事
2. Discuss in groups different ways of protecting and saving water. Write down the key information.
Example:
Pass laws against water pollution.
Collect and reuse waste water.
Turn off the taps in time.
Don’t throw litter into the water.
Take a shower instead of a bath
After we wash clothes or vegetables, we can reuse the water to clean the floor.
Stop the factories from pouring waste water into rivers.
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.
You can write it like this.
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
Project
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.
1. 缺乏……
2. 在地球上
3. 用某物做某事
4. 避免做某事
5. 在...方面取得进步
6. 在这个领域
7. 一天天
8. 似乎/好像做某事
9. 大量的
10. 带走、拿走
11. 被...覆盖
be short of
on the earth
use sth for sth/doing sth=use sth. to do sth.
avoid doing sth
make progress in sth./doing sth.
in the field
day by day
seem to do sth
plenty of
take away
be covered with
Language Points
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
Homework
1. Read 1a.
2. Memorize the useful expressions and key sentences that we learnt today.
3. Finish Section D in the workbook.
4. Finish the composition and hand it in.
5. Preview Section A in Topic 3.