仁爱科普版（2024）九年级上册Topic 2 All these problems are very serious.一等奖教学课件ppt

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Learning bjectives
After learning the lessn, we can:
Learn sme cre wrds and expressins f the text;
Summarize and use Indefinite Prnun and Adverb crrectly.
Talk abut ways f saving water.
Write a prpsal.
Cme n！ Practice makes perfect！
______ a result（结果）, a lt f rich land has changed _____（变为）desert. Trees can stp the wind frm ______ the earth _____(吹走）.We shuldn’t leave rubbish ___________(到处).All these prblems are very serius,_____(所以) we must d smething nw.
here and there
What is the vide mainly abut?
Imagine yu are water. What d yu want peple t d?
Reuse water in multiple ways.
Avid water pllutin.
Stp water waste.
Pre-reading
Fast reading：Put the fllwing paragraphs in rder.
( ) The sea seems t have the best answer. There is plenty f water in the sea. But we need t take the salt away frm the sea water. This is very expensive. If scientists can find cheaper ways t d it, we can slve the prblem f the shrtage f water.( ) Hw can we avid a serius water shrtage? First, we shuld save water and nt waste it. Secnd, we shuld prtect ur water resurces and nt pllute them. Third, we shuld discver ways t reuse water. Scientists have made sme prgress in this field. Tday, sme large cities are reusing their water. But peple’s need fr water is increasing day by day. We still dn’t have enugh water. What else can we d?( ) Althugh the wrld is hungry, it is even thirstier. While nearly ¾ f the earth is cvered with water, we are still shrt f drinking water. This is because abut 97% f the water n the earth is sea water. S we can’t use it fr watering plants r drinking directly. Humans can nly drink and use fresh water frm places including rivers, lakes and undergrund.
While-reading
Find ut the tpic sentence f each paragraph.
Althugh the wrld is hungry, it is even thirstier.
Hw can we avid a serius water shrtage?
The sea seems t have the best answer.
Paragraph 1
Paragraph 2
Paragraph 3
1. Why is ur wrld thirsty when 3/4 f the earth is cvered with water?
2. What can we d nw t avid the water shrtage?
Because abut 97% f the water n the earth is sea water. We can't use it directly.
First,we shuld save water and nt it
Careful reading： Answer sme questins.
3. What will be the best way t slve the prblem in the future in the passage?
4. D yu knw any thers t slve the prblem? What are they?
We need t take the salt away frm the sea water.
海水冻结，蒸馏法，反渗透法等。
1. There is plenty f water in the sea. But we need t take the salt away frm the sea water. plenty f 大量的，许多的，后接可数名词复数或不可数名词。 take…away frm 从….拿走…..
Language pints
avid
e.g. He avided answering my questins.
2. Hw can we avid a serius water shrtage? 我们如何避免水资源短缺呢？
3. shuld discver ways t reuse water.我们需要找到再利用水的方法。
2 Discuss in grups different ways f prtecting and saving water. Write dwn the key infrmatin.
Example: Pass laws( n.法律) against water pllutin. Cllect and reuse waste water.… …
Pst-reading
Hw t prtect and save water?
Example: Pass laws( n.法律) against water pllutin. Cllect and reuse waste water. ————————————————————————————5. ————————————————————6. ——————————————————___________________________________…
Turn ff the taps in time.
Take a shwer instead f a bath.
stp…frm…, pur…int…, turn ff, tap(水龙头), wash clthes/vegetables, clean the flr, thrw…int…
Stp the factries frm puring waste water int rivers.
Dn’t thrw litter int the water.
After we wash clthes r vegetables, we can reuse the water t clean the flr.
Write a prpsal abut saving water t all the students.
My dear friends, Water is very imprtant t human beings. Let’s d smething t prtect and save it. First, ________ . Secnd,_________. Third, _________. Let’s try ur best t save water and ur planet.
My dear friends, Water is very imprtant t human beings. Let’s d smething t prtect and save it. First, we shuld prtect ur water resurces and nt pllute them. The gvernment shuld als pass laws against the water pllutin. Secnd, we shuld save water in ur daily life, turn ff the taps in time, take a shwer instead f a bath, and always remember t cllect and reuse water. Third, let’s try t spread the message abut prtecting and saving water. Make mre peple arund us knw the prblem f water shrtage and hw t help slve it. Let’s try ur best t save water and ur planet. Student Unin
Making Psters Abut Natural Resurces
Each grup shuld discuss their wn uses, the prblems that they face and their wishes. Then give a reprt in class. Example:Uses: I am sil. Plants can’t grw withut me. Peple use me t d many things …Prblems: Smetimes peple use t many chemicals in the fields. What’s wrse, they put waste int the land … S I’m hurt. Please help me.Wishes: I hpe human beings can prtect and take care f me. And then I culd d mre useful things fr them…2. Make sme psters with the result.
T save water is t save life.
Dn't let the last drp f water becme ur tears.
We learn: sme wrds: avid, discver, thirsty, nearly, law2. sme phrases: day by day, be shrt f3. sme sentences:(1)But peple’s need fr water is increasing day by day.(2)While nearly ¾ f the earth is cvered with water, we are still shrt f drinking water.We can: 1. Talk abut ways f saving water.2. Summarize and use the indefinite prnun and adverb crrectly.3. Write a prpsal.