江苏省海头高级中学高中英语unit2welcome教案新人教版必修5Teachingaims:(1)Makestudentspayattentiontotheenvironmentaroundrealizetheproblemscausedbyhumanactivity.(2)Encourageandhelpstudentstothinkofthesolutionstosolvingtheproblems(3)PracticetheirspeakingabilitybydiscussingingroupsExercise1Afterthediscussion,collectsomekeywordsinthefollowingtableaProblemsCausesResultsRubbishdirty,ugly,dangerous,causediseases,etc.Cuttingtreesmeetpeople’sneeds,makewoodenproducts,etc.lWaterPollutionnoenoughdrinkingwater,getpeoplesick,etcAirpollutiongiveoffwastegas,burncoalandoil,etcExercise2..完成句子1.要记住,11点前你必须到家。Keep____________thatyouhavetobehome_______11o’clock.2.只要答应在十一点前回来,你可以出去。Youcangoout,________________you________tobebackbefore11o’clock.3.街道两边都是高楼大厦。Thestreetis____________tallbuildingsonboth______.4.他不仅讲得准确,而且讲得更加轻松。Notonly_________________morecorrectly,buthespokemoreeasily.5.解决与长江相关的所有难题,我们任重道远。Westillhavea____________togoto_____alltheproblems______theYangtzeRiver.Exercise2书面表达以“TheImportanceofWater”为题,用英语写一篇100词左右的短文,要点如下:1.没有水便没有生命。2.随着现代工农业的迅速发展,越来越需要更多的水。现在许多地方的水_________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________