仁爱科普版Topic 2 All these problems are very serious.优质课课件ppt

这是一份仁爱科普版Topic 2 All these problems are very serious.优质课课件ppt，共25页。PPT课件主要包含了Functions，We learn，We can等内容，欢迎下载使用。

Learn sme new wrds and phrases. Wrds: avid, discver, thirsty, nearly, law Phrases: day by day, be shrt f Be able t use sme useful expressins. But peple’s need fr water is increasing day by day. While nearly ¾ f the earth is cvered with water, we are still shrt f drinking water.Master Indefinite Prnun and Adverb.
What shuld we d t prtect the envirnment?
We shuld d everything we can t prtect the envirnment.
We shuld/shuldn’t …
Hw d sandstrms cme int being?
Indefinite prnun and adverb一、构成。不定代词、副词是由sme, any, n, every与thing, ne , bdy, where 等构成。e.g. smething, smene, nwhere, anybdy等。二、用法。1．通常情况下,由sme, 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. Yu will find yur bag smewhere. Can yu 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,smething, smebdy, smene也可以用于疑问句中。当要表达“任何人；任何事物”时,anything, anybdy, anyne也可以用于肯定句中。e.g. Wuld yu like smething t drink? Anybdy can d it except Tm.
1. When Anna pened her wallet, she was surprised t find ________. It was empty.A. nthingB. anythingC. smethingD. everything2. There's ________ wrng with the engine—it's making strange nises.A. nthingB. anythingC. everythingD. smething3. Did yu d __________ during the last summer vacatin?A. smething special B. special smething C. anything special
______ 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
water pllutin
Imagine yu are water. Please tell us yur functins, prblems and wishes.
I’m water. I used t be …Factries usually pur …I wish human beings …
1a Read the passage and put the fllwing paragraphs in the crrect 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.
名词 avid 代词 动名词
e.g. He avided answering my questins.
1. Hw can we avid a serius water shrtage? 我们如何避免水资源短缺呢？
adj.缺水的;（口）渴的
3.Althugh the wrld is hungry, it is even thirstier 虽然世界是饥饿的，但是它更渴。
2….we shuld discver ways t reuse water.我们需要找到再利用水的方法。
nearly 与almst 区别 ： almst 多表示时间、程度、距离、进度， 且almst 可以修饰mre than, t, nthing, nbdy, nwhere, n ne, nne, never 等词，nearly 则不行。nearly只与nt连用。 e.g. I have almst never seen him. I nearly didn’t hear what the teacher said in class.
4.While nearly ¾ f the earth is cvered with water , we are still shrt f 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 questins.
1.Why is ur wrld thirsty when ¾ 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 fr watering plants r drinking directly.
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.
3. What will be the best way t slve the prblem in the future in the passage?
4. D yu knw any ther ways t slve the prblem? What is it?
T find cheaper ways f taking the salt away frm the sea water.
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. … …
Write a Passage
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“Hw t prtect water resurces?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 prtect 水资源 water resurces 把……倒进 pur int 废水 waste water
Hw t write a passage ?
3. Write a prpsal abut saving water t all the students in yur schl.
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
Yu can write it like this.
1. sme wrds2. sme phrases3. sme sentences: 1.Talk abut ways f saving and use the indefinite prnun and adverb crrectly. 3. Write a prpsal.
If we want t use the sea water, we must ______ ___(拿走） the salt frm the sea water. Hw can we _________(避免) a serius water shrtage? We shuld __________(找到) ways t reuse water. Peple’s need fr water is increasing ____________(一天天).Althugh the wrld is hungry, it is even ________(更渴的)While ___________(几乎，差不多) ¾ f the earth is cvered with water, we are still shrt f drinking water.
take away