1、Section AUnit 2 Saving the EarthTopic1Pollutionhascausedtoomanyproblems.1.Express exclamation(表达惊叹):What a mess!What a shame!Oh,my goodness!2.Know the differences between Simple Past and Present perfect(了解一般过去时与现在完成时的区别):It was a beautiful place.Everything has changed.1.Some words:bee,butterfly,mess
2、,shame,several,pour,waste,destroy,pollute,goodness2.Some phrases:see doing sth.pour into3.Some sentences:have gone.There be doing sth.A:Where have you traveled?B:I have traveled to.Have you ever had a picnic?Kangkang,Jane,Maria and Michael are planning a picnic for Sunday.They will go to the West Hi
3、ll.What could you see there?We could see bees and butterflies dancing.beebutterfly Was the West Hill beautiful?seedoing sth.a beautifulplace withbeautiful flowersmany butterflies and beesgreen grassblue skyclean water糟糕透了！The flowers and grass have gone!Oh,my goodness.What a mess!Look!There are seve
4、ral chemical factories pouring waste water into the stream.=have disappearedP27 1a mp3What has happened there?哦，天啊！Is it beautiful now?waste waterwaste paperWaste water.浪费水。Dont waste time.不要浪费时间。wasteadj.V.倒出；倾泻pour into 把倒入e.g.Pour red wine into the glass.1b Listen to 1a and mark the words with P(
5、Past)or N(Now)._ beautiful _ butterflies _ dirty _ grass _ terrible _ factory _ bees _ fresh _ clean _waste waterPPNPNNPPPN1c Read 1a and complete the sentences in the table.beautiful placelots of flowers and grassfresh and the water was cleanbees and butterflies dancingThe flowers and grassso dirty
6、terriblechemical factorieswaste waterEverythingWhat a shame!=What a pity!.真遗憾/真可惜！There are several chemical factories pouring waste water into the stream.There bedoing sth 有在做某事There are some birds singing in the tree.有几家化工厂正在往小溪里排放废水。e.g.树上有几只鸟在唱歌。In the past,the West Hill _(be)beautiful.Kangkang
7、_(go)there two years ago.The flowers and grass _(go).Everything _(change).waswenthave gonehas changed一般过去时强调过去发生的动作现在完成时强调过去发生的动作对现在造成的影响或结果绝对不能与表示过去的时间状语连用常与表示过去的时间状语连用一般过去时强调过去发生的动作e.g.我上周天看了这部电影。e.g.我已经看过这部电影了。现在完成时强调过去发生的动作对现在造成的影响或结果I _(watch)the movie last Sunday.I_(watch)the movie.watchedhave
8、 watched2 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.village/flowers and grassvillagers/destroyA:There were lots of when I visited the last year.B:But now th
9、e flowers and grass have gone.A:What has happened here?B:The villagers have destroyed them.B:But now the have gone.A:What has happened here?B:The have them.2 Work in pairs.Look at the pictures and make up conversations similar to the example with your partner.lake/fishfactory/pollutehill/trees farme
10、rs/cut downA:There were lots of when I visited the last year.B:But now the have gone.A:What has happened here?B:The have them.Example:hill/treesfarmers/cut downA:There were lots of when I visited the last year.B:But now the have gone.A:What has happened here?B:The have them.A:There were lots of tree
11、s 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 when I visited the last year.B:But now the have gone.A:What has happened here?B:The have them.A:There were lots of fish when I visi
12、ted the lake last year.B:But now the fish have died.A:What has happened here?B:The factory has polluted it.Five years agoNowadays4.Work in groups and talk about pollution in a place you are familiar with.Five years ago,my hometown_.The sky _,the water _.And there were lots of _ and _ _.However,nowad
13、ays,everything _.People _ too many trees.The flowers and grass _ _.What a _!I think the government should take some measures to stop the factories pouring _ into the river.If everyone tries his best,our world will be _.has changedwas beautifulwas bluewas cleangreen treesbeautifulflowershave cut down
14、havegoneShame/pitywaste watermore and more beautifulExample3 A.Listen to the sentences and number the pictures.5533221144661.People _ _ _ too many trees,so I dont have enough leaves to eat.2.I live in trees but now many trees _ _.3.I like leaves and grass,but now they _ _.4.I _ _ hungry for months b
15、ecause of less bamboo.5.Human polluted the sea,so I _ _ _.6.The water _ _ many years ago.But it _ _ _ for me to live in now.B.Listen again and complete the sentences.have cut downhave gone have disappearedhave beendont live happilywas cleanis too dirty1.Express exclamation(表达惊叹):What a mess!What a s
16、hame!Oh,my goodness!2.Know the differences between Simple Past and Present perfect(了解一般过去时与现在完成时的区别).It was a beautiful place.Everything has changed.1.Some words:bee,butterfly,mess,shame,several,pour,waste,destroy,pollute,goodness2.Some phrases:see doing sth.pourinto3.Some sentences:have gone.There
17、bedoing sth.看见某人在做某事废水把 倒进消失砍倒哦,天啊！太糟糕了！真遗憾啊！有某人/某物在做某事see sb.doing sth.waste water pour into have/has gone cut down Oh,my goodness!What a mess!What a shame!There bedoing sth.()1.Look!There are some boys _ on the playground.A.play football B.are playing football C.playing football D.plays football()
18、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 save every drop of it.Sorry,I wont do it again.A.waste B.throw C.play D.leaveCDAThere bedoing sth.真遗憾/真可惜！动词用所给动词的适当形式填空。1.When I entered the room,I saw Maria _(read)a Chine
19、se book.2.What a shame!The flowers and trees in the park _(go).3.Everything _(change)in the past few years.4.Sally _(buy)the bike.She _(buy)it two weeks ago.5.Where have they been?They _(be)to the Great Wall.They _(have)a good time there the day before yesterday.readinghave gonehas changedhas boughthave beenhadboughtHomework1.B层次的学生熟读1a,完成练习册SectionA；2.A层次的学生背诵1a,完成练习册SectionA；3.A层次同学根据Part4完成自己的短文;4.Finish the exercises on the paper sheet;5.Preview Section B.Congratulations to the winners!We must try our best to save the earth!
