Unit2 Topic2 All these problems are very serious.SectionD课件（22张，无素材）

Topic 2 All these problems are very serious .
Unit 2 Saving the Earth
Section D
Goals
.1 Let Ss realize the importance of protecting water .
2.Learn how to write a passage about protect the water resources .
air pollution
litter
light pollution
water pollution
soil pollution
noise pollution
Let’s say
Group discussion
What can you learn form the news report?
Water is important.
Because humans, animals and plants can’t live without water.
Nearly three fourths of the earth is covered with water.
water on the earth
3/4
被……覆盖
/'n??l? /
几乎、将近
While there is so much water around the world,
we humans are still short of drinking water.
So do animals and plants.
Do you know why?
be short of 缺乏……
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 eath 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.
3
2
1
While-reading Activity 1: Scanning
1. Why is our earth thirsty when ? of the earth is covered with water?
Because about 97% of the water on the earth is sea water and we can’t use it for watering plants or drinking directly.
2. What kind of water can humans drink and use?
Humans can only drink and use fresh water from places including rivers, lakes and underground.
( )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
Read and answer.
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.
( ) 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?
Read Paragraph2 and mark T or F.
( ) Scientists haven’t made any progress in this field.
( ) Water is reused nowhere.
( ) People’s need for water is increasing day by day.
F
F
T
Read Paragraph3 and answer.
( ) The sea______ ____ have the best answer. There is ______ ___water in the sea. But we need to ____the salt _____from the sea water . This is very expensive. If scientists can find cheaper ways to do it, we can ______ ___ _________of the shortage of water.
seems to
plenty of
take
away
solve the problem
Q: How can we change sea water into fresh water?
We need to take the salt away from the sea water.
be short of
on the earth
use sth for sth/doing sth
avoid sth
make (some) progress
in the field
day by day
seem to do sth
plenty of
take away
the shortage of
1. 缺乏……
2. 在地球上
3. 用某物做某事
4. 避免某事
5. 取得（一些）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. ……的缺乏
领域; 场地, 田地
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
one by one
year by year
step by step
一个接一个
一年年
一步步
Water pollution
less fresh water
We should protect and save water.
Post-reading Activity:Group discussion
How to protect and save water?
Example:
Pass laws( n.法律) against water pollution.
Collect and reuse waste water.
——————————————
——————————————
5. ————————————————————
6. ——————————————————
________________________________________
…
Turn off the taps in time
Take a shower instead of a bath
stop…from…, pour…into…, turn off, tap(水龙头), wash clothes/vegetables, clean the floor, throw…into…
Stop the factories from pouring waste water into rivers.
Don’t throw litter into the water
After we wash clothes or vegetables, we can reuse
the water to clean the floor.
After-reading Activity :Writing
水资源问题已成为举世瞩目的重要问题之一，请发挥你的想象，并结合所学知识，请以“How to protect water resources?为题，写一篇英语短文。
内容包括：1. 写出水资源的现况。(2到3点）
2.提出保护水资源的方法（2到3点）
3. 呼吁大家节约水，保护我们的地球。
参考词汇： 保护protect 水资源 water resources 把 倒进 pour ito 废水 waste water
How to Protect water resources ?
Water is very important to human beings . _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
How to write well?
It’s your turn to write!
水资源问题已成为举世瞩目的重要问题之一，请发挥你的想象，并结合所学知识，请以“How to protect water resources?为题，写一篇英语短文。
内容包括：1. 写出水资源的现况。(2到3点）
2.提出保护水资源的方法（2到3点）
3. 呼吁大家节约水，保护我们的地球。

体裁：_______________
人称：_______________
时态： ________________
说明文&议论文
we
一般现在时
水资源问题已成为举世瞩目的重要问题之一，请发挥你的想象，并结合所学知识，请以“How to protect water resources?为题，写一篇英语短文。
内容包括：1. 写出水资源的现况。(2到3点）
2.提出保护水资源的方法（2到3点）
3. 呼吁大家节约水，保护我们的地球。

内容可包括：
1. 写出水资源的现况。(2到3点）
2. 提出保护水资源的方法2到3点）
3. 呼吁大家节约水，保护我们的地球。
Hamburger writing
Beginning
The causes and harms of pollution
Body
Measures to
protect water
Ending
Ask people to protect the water
After-reading Activity :Writing
水资源问题已成为举世瞩目的重要问题之一，请以“How to protect water resources?为题，写一篇英语短文。
内容包括：1. 写出水资源的现况。(2到3点）
2.提出保护水资源的方法（2到3点）
3. 呼吁大家节约水，保护我们的地球。
参考词汇： 保护protect 水资源 water resources 把 倒进 pour ito 废水 waste water
How to Protect ater resources ?
Water is very important to human beings . _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Yes
No
1. Structure (结构是否完整？）
2. Fluency and coherence (是否流畅和连贯）
3.Accuracy准确性（单词拼写，标点，语法等）
Assessment(评价)
Self-assessment 自评
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
3. Write a proposal(?提议) 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.

_________
_____________
Homework
Heal?the?world.?
Make?it?a?better?place,?
for?you?and?for?me??
and?the?entire?human?race.