1、Unit 2 Saving the Earth Topic 1 Pollution has caused too many problems.Section ALearning 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
2、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
3、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 sha
4、me!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 s
5、ee 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 rabbitThe flowers and grass have gone!Oh,my goodness.What a mess!Look!Ther
6、e are several chemical factories pouring waste water into the stream.=have disappeared.Is it beautiful now?What has happened there?P27 1a mp3waste waterwaste paperWaste water.浪费水。浪费水。Dont 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
7、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。放废水。There bedoing 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 _
8、 bees _ fresh _ clean _waste waterPPNPNNPPPN1c Read 1a and complete the sentences in the table.Then retell 1a to your partner.beautiful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirtyterriblechemical factorieswaste waterEverythingL
9、anguage 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
10、.to play B.playing C.played D.play1.(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：so
11、unds 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
12、。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):pourinto 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 co
13、nversations 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/destroyhill/treesfarmers/
14、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
15、 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 ent
16、ered 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 goneh
17、as 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.Im sorry I cant go shopping with you.I am ill._ A.What a mess!B.What a shame!C.What a pity!D.B and C()3.Dont _ water.We must s
18、ave every drop of it.Sorry,I wont 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.Its 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 do
19、ne3.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.,pourinto,have/has gone 2.Some sentences:(1)You could see bees and butterflies dancing.(2)The flowers
20、 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.
