Unit2Topic2SectionD

1、unit 2 saving the earthtopic 2 all these problems are very serious. section d grammarindefinite pronoun and adverb _of us likes pollution. dont spit _ in public. _ should care for wild animals and plant more trees. we should do _ we can to protect the environment. noneanywhereeveryoneeverythingindef

2、inite pronoun and adverb 不定代词和副词不定代词和副词一、构成。一、构成。不定代词、副词是由不定代词、副词是由some, any, no, every与与thing, one,body, where 等构成。等构成。e.g. something, someone, nowhere, anybody等。等。二、用法。二、用法。1通常情况下通常情况下,由由some, every加后缀构成的不定代词、加后缀构成的不定代词、副词常用于肯定句；由副词常用于肯定句；由any加后缀构成的不定代词、副加后缀构成的不定代词、副词常用于疑问句、否定句中。词常用于疑问句、否定句中。e.g.

3、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、请求等意图或是表示建议、请求等意图时时,something, somebody, someone也可以用于疑问句中。当要表达也可以用于疑问句中。当要表达“任何人；任何事物任何人；任何事物”时时,anything, anybody, anyone也可以用于肯也可以用于肯定句中。定句中。e.g. would you like something to drink? anybody can do it ex

4、cept tom.1. which would you like to drink, tea or coffee? _, thanks. im not thirsty. a. eitherb. neitherc. littled. few 2. the students are doing some cleaning. some are sweeping the floor, _ are cleaning the desks and chairs. a. otherb. the other c. another d. others 3. my parents are _ doctors. a.

5、 bothb. allc. either d. neither 4. there is _ with my computer. can you help me? a. wrong anything b. anything wrong c. wrong somethingd. something wrong5. the wind was blowing strongly. _ people walked in the street. a. littleb. a littlec. fewd. a few 6. hurry up. there is _ time left. a. a littleb

6、. littlec. a fewd. fewfunctions _ 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 shouldnt leave rubbish _(到处). all these problems are very serious,_(所以) we must do something now. intoblowingawayhere and there soaswater pollution imagine

7、you are water.please tell us your functions, problems and wishes.im water. i used to be factories usually pour i wish human beings 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

8、 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

9、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 peoples need for water is increasing day by day. we still dont have enough water. what else can we do? ( ) although the world i

10、s 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 cant use it for watering plants or drinking directly. humans can only drink and use fresh water from places i

11、ncluding rivers, lakes and underground. 名词名词 avoid 代词代词 动名词动名词 v.防止，避免防止，避免v.发现，找到发现，找到e.g. he avoided answering my questions. 不定式不可以做宾语。不定式不可以做宾语。1. how can we avoid a serious water shortage? 我们如何我们如何避免水资源短缺呢？避免水资源短缺呢？2.we should discover ways to reuse water.我们需要找到我们需要找到再利用水的方法。再利用水的方法。thirsty adj.

12、缺水的缺水的;（口）渴的（口）渴的nearly adv.几乎，将近几乎，将近nearly 与与almost 区别区别 ： almost 多表示时间、程度、距离、进度，多表示时间、程度、距离、进度， 且且almost 可以修饰可以修饰more than, too, nothing, nobody, nowhere, no one, none, never 等词，等词，nearly 则不行。则不行。nearly只与只与not连用。连用。 e.g. i have almost never seen him. i nearly didnt hear what the teacher said in c

13、lass. 3.although the world is hungry, it is even thirstier 虽然世界是饥饿的，但是他更渴。虽然世界是饥饿的，但是他更渴。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。们仍然缺少饮用水。 1b read 1a again and answer the questions. 1.why is our world thir

14、sty 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 cant use it for watering plants or drinking directly. first, we should save water and not waste it. second, we should protect our water resour

15、ces 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 is it? to find cheaper ways of taking the salt away from the sea water.2 discuss in groups d

16、ifferent ways of protecting and saving water. write down the key information.example: 1. pass laws( n.法律法律) against water pollution. 2. collect and reuse waste water. 3. write a proposal about saving water to all the students in your school. my dear friends, water is very important to human beings.

17、lets do something to protect and save it. first, _ . second,_. third, _. lets try our best to save water and our planet. _my dear friends, water is very important to human beings. lets do something to protect and save it. first, we should protect our water resources and not pollute them. the governm

18、ent 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, lets try to spread the message about protecting and saving water. make more people

19、 around us know the problem of water shortage and how to help solve it. lets try our best to save water and our planet. student union you can write it like this.making posters about natural resources 1. divide the class into several groups: water group, tree group, soil group 2. each group should di

20、scuss their own uses, the problems that they face and their wishes. then give a report in class. example: uses: i am soil. plants cant grow without me. people use me to make many things problems: sometimes people use too many chemicals in the fields. whats worse, they put waste into the land so im h

21、urt. 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. if we want to use the sea water, we must _ _(拿拿走）走） the salt from the sea water. 2. how can we _(避免避免) a serious water shortage? 3. we should _(找到找到) ways to reuse water. 4. peoples need for water is increasing _(一一天天天天).5. although the