外研版九年级英语上册最新课件M12U1.ppt

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1、If everyone starts to do something, the world will be saved.1. The factory is causing a lot of _ .2. There should be some _ to stop pollution.3. We can _ waste products, such as _ in a recycling centre.pollutionrecyclerulesglassComplete the sentences with the correct formof the words in the box.glas

2、s rule recycle pollute protectv自主预习自主预习v根据句意及汉语提示完成单词。根据句意及汉语提示完成单词。v1. I feel it is our duty not to pollute （污染）（污染）our environment.v2. He refused to have dinner with his old enemy / enemies（敌人）敌人）.v3. We have found oil （石油）（石油）under the North Sea.v4. The success of the crop （庄稼）（庄稼）depends on the

3、weather.v5.A cat killed （弄死）（弄死）my bird yesterday。v课堂导学课堂导学v1.Its no use talking about things we cant do.v谈论我们不能做的事情是没有用的。谈论我们不能做的事情是没有用的。v句型句型1：Its no use doing sth.做某事是没有用的。做某事是没有用的。v固定句式固定句式Its no use doing sth.意为意为“做某事是没做某事是没有用的有用的”。其中。其中it是形式主语，真正的主语是动名是形式主语，真正的主语是动名词短语。词短语。v It is no use telli

4、ng him not to worry.v告诉他不要担心没有用。告诉他不要担心没有用。v It is no use crying over spilt milk. v覆水难收覆水难收v即学即练一即学即练一v单项选择单项选择vIt is no use back to ones lost youth.vA. look B. looked C. looking D. to lookv解析：句意为解析：句意为“回顾流逝的青春是没有用的回顾流逝的青春是没有用的”，Its no use doing sth.意为意为“做某事是没有用的做某事是没有用的”。故。故选选C。v2. Such as ?比如比如？v短

5、语短语1： such as 例如，比如例如，比如vsuch as，意为，意为“例如，比如例如，比如”。用来列举同类人。用来列举同类人或物中的几个例子，或物中的几个例子，as后面不可以有逗号。后面不可以有逗号。vThe farm grows different kinds of crops , such as wheat ,corn , cotton and rice.v这个农场种植不同种类的庄稼，例如小麦、玉米、这个农场种植不同种类的庄稼，例如小麦、玉米、棉花和水稻。棉花和水稻。v辨析：辨析：such as与与for example的区别的区别v(1) such as一般用来列举同类人或物中的

6、几个例子一般用来列举同类人或物中的几个例子,插在被列举的例子和前面的名词之间插在被列举的例子和前面的名词之间,as后没有逗号。后没有逗号。vHe has been to many countries , such as America , Japan and Germany.v他去过很多国家，比如美国、日本和德国。他去过很多国家，比如美国、日本和德国。v(2)for example一般只举同类人或物中的一个例子，一般只举同类人或物中的一个例子，作插入语，前后用逗号隔开，置于句首、句中、句作插入语，前后用逗号隔开，置于句首、句中、句末均可。末均可。vA lot of people here ,f

7、or example , Mr John ,wound rather have coffee.v这儿的许多人，例如约翰先生，宁愿喝咖啡。这儿的许多人，例如约翰先生，宁愿喝咖啡。v即学即练二即学即练二 v单项选择单项选择vIn America , parents want their children to do something they can. , they want them to use money wisely.vA. For example B. For examplesvC. As example D. Such asv解析：解析：such as一般用来列举同类人或物中的几个一

8、般用来列举同类人或物中的几个例子，例子， for example一般只举同类人或物中的一个一般只举同类人或物中的一个例子。由句意可知，例子。由句意可知，“they want them to use money wisely”是其中的一个例子。故选是其中的一个例子。故选A。v3. That means less waste.v这意味着更少的浪费。这意味着更少的浪费。v单词单词1： less 较小的较小的;较少的较少的vless作形容词，意为作形容词，意为“较小的较小的;较少的较少的”。less是是little的比较级，可用来修饰不可数名词。的比较级，可用来修饰不可数名词。vHe spent le

9、ss time doing the experiments.v他做实验花的时间较少他做实验花的时间较少v拓展：拓展：less也可修饰形容词或副词，意为也可修饰形容词或副词，意为“较较不不；更不；更不”。vIt is less cold than it was yesterday.v今天的天气不如昨天那么冷。今天的天气不如昨天那么冷。v辨析：辨析：fewer与与less的区别的区别v词条词条 原级原级 词义词义 用法用法 例句例句vfewer few 更少的更少的 修饰可数名词复数修饰可数名词复数 vThere will be fewer trees in the future.v将来的树木会更

10、少将来的树木会更少vless little 更少的；更小的更少的；更小的 修饰不可数名词修饰不可数名词 vShe has less money than me .v她的钱比我的少她的钱比我的少v即学即练三即学即练三v单项选择单项选择vTo live a green lift , we should try to save energy and produce pollution.vA. more ; less B. less ; morevC. more ; fewer D. most ; leastv解析：解析：more是是much和和many的比较级，意为的比较级，意为“更更多的多的”，可

11、用来修饰可数名词复数和不可数名词；，可用来修饰可数名词复数和不可数名词； less是是little的比较级，意为的比较级，意为“较小的较小的;较少的较少的”，可，可用来修饰不可数名词。根据句意用来修饰不可数名词。根据句意“为了过绿色的生为了过绿色的生活，我们应该节省更多的能源，制造更少的污染活，我们应该节省更多的能源，制造更少的污染”可知选可知选A。v4. Though pollution is heavy now , I dont think its hopeless.v尽管现在污染很严重但我认为它不是没有希望。尽管现在污染很严重但我认为它不是没有希望。v单词单词2： hopeless无望的

12、无望的vhopeless作形容词，由作形容词，由“hope+后缀后缀-less”构成，构成，意为意为“无望的无望的”。vIts trying to convince her.v想说服她简直是徒劳。想说服她简直是徒劳。hopelessv归纳：常见的加后缀归纳：常见的加后缀-less构成的形容词构成的形容词v-less是形容词后缀，可加在一些名词之后，表示是形容词后缀，可加在一些名词之后，表示“无无，没有，没有”。vcarelessvuselessvfearlessvhomeless粗心的粗心的无用的无用的无畏的无畏的无家可归的无家可归的v即学即练四即学即练四v根据句意及英语提示完成单词根据句意及

13、英语提示完成单词vHe failed his job interview again , and he felt really (with no hope) about the future.hopelessRead the conversation and complete the notes.Problems1. If the rivers are polluted, _ _.2. In some places, pollution from factories _.3. The cars in the street _. What should we do?4. It is no use

14、 _.5. At a green school, students _ _. They also learn how to _.6. We can save the world if _. the farmers cant use them to water their cropsspreads over cities and villagesuse a lot of oil and cause pollution as welltalking about things we cant dosave energy and recycle at homerubbish which can be

15、recycled or used againcollect the waste or everyone starts to do somethingComplete the passage with the correct form of the words in the box.cause enemy factory kill oil pollute spread Pollution is our great _ . Pollution from _ is a danger to our health, and may even _people. Factories sometimes _ rivers, and farmers cannot use the water for their crops. Pollution_over cities and villages, and that_even more danger. Cars in the street use a lot of_ and cause pollution too.enemyindustrykillpollutespreadscausesoil