九年级英语上册 Unit 2 Saving the Earth Topic 1 Pollution has causes too many problems Section A （新版）仁爱版.ppt

Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems.Section ALearning aims1.掌握本课的重点短语和句型掌握本课的重点短语和句型2.巩固一般过去时和现在完成时的用法区别巩固一般过去时和现在完成时的用法区别3.复习系动词的用法复习系动词的用法4.正确使用正确使用there be sth./sb. doing sth.来表达来表达“有某人有某人/物正在做某事物正在做某事”5.了解环境污染的严重性，并树立环保意识了解环境污染的严重性，并树立环保意识自主预习自主预习 英汉互译英汉互译1. 西山西山 _____ 2. have a pinic _____ 3. 两年前两年前 _____4. lots of ____ 5. see sb./sth. doing sth. _______6. 一些化工厂一些化工厂________ 7. pour … into … ________8. 废水废水 ________ 9. cut down ________ 10. There be sb./sth. doing sth. ______________11. What a mess ! ______________12. 多可惜啊！多可惜啊！_________ 13. Sounds great. _______14. 气味真难闻。

气味真难闻 ______________15. The flowers and grass have gone. ____________16. 一切都变了一切都变了自主预习自主预习 英汉互译英汉互译1. the West Hill 西山西山 2. have a pinic 去野餐去野餐3. two years ago 两年前两年前 4. lots of 许多许多 5. see sb./sth. doing sth. 看见某人看见某人/某物正在做某事某物正在做某事6. several chemical factories 一些化工厂一些化工厂 7. pour … into … 把把…倒入倒入…8. waste water 废水废水 9. cut down 砍倒砍倒10. There be sb./sth. doing sth. 有某人有某人/某物正在做某事某物正在做某事 11. What a mess ! 多么脏乱啊！多么脏乱啊！12. What a shame ! 多可惜啊！多可惜啊！13. Sounds great. 听起来真棒！听起来真棒！14. It smells terrible. 气味真难闻。

气味真难闻15. The flowers and grass have gone. 花和草都消失了花和草都消失了16. Everything has changed. 一切都变了一切都变了Have you ever had a picnic?Kangkang, Jane, Maria and Michael are planning a picnic for Sunday.They will go to the West Hill.What can you see there?We can see bees and butterflies dancing.beebutterfly Is the West Hill beautiful? a place withbeautiful flowersmany hillsgreen treesWhat a shame/mess! The flowers and grass have gone!butterfliesclean waterbeessome fisha rabbitThe flowers and grass have gone! Oh, my goodness. What a mess!Look! There are several chemical factories pouring waste water into the stream.= have disappeared.Is it beautiful now?What has happened there?P27 1a mp3waste waterwaste paperWaste water. 浪费水。

浪费水Don’t waste paper. 不要浪费纸不要浪费纸wasteadj.v.There are several chemical factories pouring waste water into the stream.有几家化工厂正在往小溪里排有几家化工厂正在往小溪里排放废水 There be…doing sth… ……有有……在做某事在做某事e.g. There are some people waiting for the bus at the bus stop. 倒出；倾泻倒出；倾泻pour… into… 把把……倒入倒入……e.g. Pour red wine into the glass.1b Listen to 1a and mark the words with P (Past) or N (Now).____ beautiful ____ butterflies ____ dirty ____ grass ____ terrible ____ factory ____ bees ____ fresh ____ clean ____waste waterPPNPNNPPPN1c Read 1a and complete the sentences in the table. Then retell 1a to your partner.Two years agoNow1. It was a _______________.2. There were _______________________.3. The air was _______________________ and you could see _______________________.1. ___________________ have gone.2. The water is ________and smells ___________.3. There are several ________________ pouring _______________ into the stream.4. _____________has changed.beautiful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirtyterriblechemical factorieswaste waterEverythingLanguage points1. …you could see bees and butterflies dancing.你还能看见蜜蜂和蝴蝶在飞舞。

你还能看见蜜蜂和蝴蝶在飞舞 点拨点拨: see sb./sth. doing sth. 看见某人看见某人/某物某物正在做正在做某事某事对比对比: see sb./sth. do sth. 看见某人看见某人/某物某物做了做了某事某事(全过程全过程)拓展：类似的动词还有拓展：类似的动词还有 hear, watch, find, feel …e.g. (1) I saw Jack _____ soccer there when I walked past the playground. A. to play B. playing C. played D. play (2) I saw her ____ the road just now. A. cross B. crossed C. crosses D. to crossB A 2. The flowers and grass have gone！花和草都消失了花和草都消失了 点拨：点拨：have/has gone 不见了，消失了不见了，消失了 e.g. 我的钱不见了。

我的钱不见了My money has gone. 3. Sounds great ! 听起来真棒！听起来真棒！ It smells terrible. 气味真难闻气味真难闻 点拨：点拨： sounds great ，，smells terrible 系表结构：系动词系表结构：系动词 + 形容词形容词初中常见的系动词总结：初中常见的系动词总结：be/keep/feel/smell/sound/taste/look/seem…+形容词形容词 e.g. 1)音乐听起来很棒音乐听起来很棒 2)我感到很开心我感到很开心 ______________________The music sounds great. I feel very happy. 4. Look, there are several chemical factories pouring waste water into the stream. 看，有几家化工厂正在往小溪里排放废水看，有几家化工厂正在往小溪里排放废水 e.g. 请把红酒倒进杯子里请把红酒倒进杯子里 Please _____ the red wine ____ the glass. pour into 点拨点拨(1)：：there be + sb./sth. + doing sth. 有某人有某人/某物某物正在正在做某事做某事 点拨点拨(2) : pour…into… 把把……倒入倒入……e.g. 听！有个人在隔壁唱歌。

听！有个人在隔壁唱歌Listen! ___ ___ someone ______ in the next room. There is singing 2 Work in pairs. Look at the pictures and make up conversations similar to the example with your partner.Example:A: There were lots of flowers and grass when I visited the village last year.B: But now the flowers and grass have gone.A: What has happened here?B: The villagers have destroyed them.village/flowers and grassvillagers/destroyhill/ treesfarmers/cut downA: There were lots of trees when I visited the hill last year.B: But now the trees have gone.A: What has happened here?B: The farmers have cut them down.lake/fishfactory/polluteA: There were lots of fish when I visited the lake last year.B: But now the fish have gone.A: What has happened here?B: The factory has polluted them.一般过去时和现在完成时的用法区别一般过去时和现在完成时的用法区别一般过去时一般过去时现在完成时现在完成时表示过去发生或表示过去发生或已完成的动作已完成的动作对现在的影响对现在的影响表示过去发生的动作表示过去发生的动作或存在的状态或存在的状态（与现在无关）（与现在无关）yesterday, last night,时间段时间段+ ago,in 2005,in the past, … for +时间段时间段, since, recently,so far, already, yet, just,in the past +时间段时间段, …用法用法连用的词连用的词和短语和短语用所给动词的适当形式填空。

用所给动词的适当形式填空1.When I entered the room, I saw Maria ________ (read) a Chinese book.2. What a shame! The flowers and trees in the park _________ (go).3. Everything _____________ (change) in the past few years.4. — Where have they been? — They __________ (be) to the Great Wall. They _____ (have) a good time there the day before yesterday.5. The food ___________ (taste) delicious.readinghave gonehas changedhave beenhadtastes/tasted__________________ _____________________ 单项选择单项选择( ) 1. Look! There are some boys ________ on the playground. A. play football B. are playing football C. playing football D. plays football( ) 2. — I’m sorry I can’t go shopping with you. I am ill. — ________ A. What a mess! B. What a shame! C. What a pity! D. B and C( ) 3. — Don’t ________ water. We must save every drop of it. — Sorry, I won’t do it again. A. waste B. throw C. play D. leaveCDA中考链接中考链接1. This silk dress ___ so smooth. It’s made in China. A. feels B. smells C. sounds D. tastes2. — What do you think of the new foreign teacher Thomson ? — Pretty good. I think he ___ a great job so far. A. does B. did C. has done D. was done3. Our math teacher ___ in our school for20 years and he ___ here when he was 23 years old. A. has taught ; has come B. taught ; come C. taught ; came D. has taught ; cameA C _____ D __ ______________________ 1.Some phrases: see sb. doing sth., pour…into…, have/has gone 2. Some sentences:(1) You could see bees and butterflies dancing.(2) The flowers and grass have gone！！(3) It smells terrible.(4) There are several chemical factories pouring waste water into the stream. 1. Some words: bee, butterfly, mess, shame, several, pour, waste, destroy, pollute, goodnessSummary Homework1. Recite the new words and useful expressions.2. Recite 1a.3. Finish Section A in your workbook.Thank you.。