Unit 2 I must ask him to give up smoking Topic 2Section B 编写 王光杰一、学习目标1.Go on learning good living habits to keep healthy.2.Learn some useful words and expressions:, article,smoke,cancer,litter,dustbin lawn,energy, necessary, enough 3.learn the modals for necessary: must, mustnt二、学习过程1.掌握单词表上单词(Page125)：From “article” to “enough”（1）自读、纠错 （2）领读 （3）背记 （4）造句:脏水使他肚子疼。The dirty water _ his stomachache.我一定让他戒烟（放弃吸烟）。I must ask him to _ _ _.别乱丢垃圾。Dont _
