初中三年级英语下册第一课时课件(教育精品).ppt

The earth is polluted.pollution（n.)污染污染 Were trying to save the earth!我们正在竭尽全力拯救地球我们正在竭尽全力拯救地球!try to do=try ones best to do 努力去做某事。努力去做某事。e.g.Every student should try to work hard in order to study in a university.为了进入大学学习，每个学生都应该为了进入大学学习，每个学生都应该 努力学习。努力学习。air pollutionThe factories that burn coal pollutethe air with a lot of black smoke.n.煤炭煤炭Factories put waste into the river.water pollutionnoise pollutionThere are more cars on the road.mobile phone pollutionlitter v.乱扔乱扔 n.垃圾垃圾rubbish waste垃圾，废弃物垃圾，废弃物People should throw away litter in the bin.n.垃圾箱垃圾箱litter和和rubbish都可指都可指“垃圾垃圾”，用作用作不可数名词不可数名词。rubbish指指“没用的东西没用的东西(被扔或将被扔或将要丢弃的无用的东西要丢弃的无用的东西)”不可回收不可回收。1aHere are some words related to different kinds of pollution.Write them in the box below.Then add more words.与与相关相关noise pollution _air pollution _water pollution _loud musicplanesmobile phonesfactoriescarssmokingshipsfactorieslitteringrubbishbuilding housesbuilding housesloud music cars rubbish planeslittering ships factories smokingbuilding houses mobile phones1bListen and complete the sentences.What was the problem?The river was _.Even the bottom(底部底部)of the river was full of _.There were no more _ for fishermen(渔民渔民)to catch.really dirtyrubbishfishWhat caused the problem?People are throwing _ into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the factories.Everyone should help to _ the river.litterwastegovernmentclose downclean upListen again and check()the sentences you hear.1.We could go fishing in the river.2.The river was really dirty.3.The river has always been the nicest river in this town.4.We should ask the teachers for help.1cThe river was dirty.Even the bottom of the river was full of rubbish.But it used to be so clean!Make conversations using the pollution in 1a.The river has always been the nicest river in this town.Yes,it used to be so clean.What caused the problem?But I was there last weekend and the river was really dirty.Factories are also putting waste into the river.People are throwing litter into the river.What should we do?Yes,everyone in this town should play a part.在在中扮演角色中扮演角色 把把倒进倒进We should write to the government and ask them to close down the factories.What else can we do?Everyone should help to clean up the river.用动词的适当形式填空。用动词的适当形式填空。1.Were trying _(save)the earth.2.There used to _(be)clean and beautiful.3.There are too many _ for _ to catch(fish).to savebefishfishermen1.Copy the new words and remember them.2.Do the exercises on the activity book.