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Unit 2 Keeping HealthyTopic 2 I must ask him to give up smoking.Section BTeaching person: Teaching time:one classTeaching aims:1. New words: article , smoke, cancer, litter, dustbin, lawn, energy, necessary, enough2. Learn some useful sentences:(1) How terrible!(2) Don’t walk on the lawn.(3) It’s necessary for your health.(4) Smoking is bad for his health.3. The use of “ must ,must not” (1) I must ask him to give up smoking.(2) You must put litter into the dustbin.(3) You must not throw litter around.4. Help students form good habits.Teaching importance : aim 1 ,2, 3.Teaching difficulty: It’s necessary for sb. to do sth.Teaching steps:一、Sing an English song. Then greet between the teacher and the students . 二、Review the dialog of Section A.. Ask some sentences:Staying up late is bad for your health. Is going to bed early good or bad for our health ? It’s good .Doing morning exercises is good for our health.三 、 New lesson:(一)1a 1. Read the dialog by themselves . Find the new words and understand their meaning and pronunciation.2.Listen to the tape and read after it. Thinking :What’s the dialog about ? After reading ,answer it .3. Read again and understand the dialog with some questions. After reading it ,answer them.What is Wang Junfeng reading ?Heisreadinganarticleaboutsmokinginthenewspaper.2)What does Maria’s father think of smoking ? Becausehethinkssmokingcanhelphimrelax. 3)WhydoesMariawanttoaskherfathertogiveupsmoking?Becausesmokingisbadforourlungsanditcanevencausecancer.4. After answering them,explain and practice useful phrases. Give some examples .Smoking is bad for his health .I must ask him to give up smoking .The use of “must ” .How terrible ! (二)1b 1. Read and match the sentences by themselves . 2 .Then say the sentences without looking at the book. 3 . Summarize the use of “must , mustn’t ” --Must I finish the task now ? --Yes , you must. --No, you needn’t. --No , you don’t have to. (三) Look at the picture and say some sentences using “mustn’t , don’t ” . For example: You mustn’t walk on the lawn. Don’t walk on the lawn. You mustn’t climb the tree. Don’t park your bike here and there. Don’t take your pet to the school.You mustn’t throw litter around . (四)2a 1 . Read the following sentences and understand them. 2 . Read them after the tape twice . 3 . Say the sentences without looking at the book.4. Solve the hard sentences and useful expressions. It’s necessary for sb. to do sth. For example : It’s necessary for us to review often . 四 、Show some exercises to check the importance. 1 . _______ ( smoke ) is bad for your health . 2 . We must _______ (follow ) the school rules . 3 . Don’t ________ ( read ) in the sun . 4 . You mustn’t ________( stay ) up late at night. 5 . ---Must I stop watching TV right now ? --- No , you ______________ . 6 . It’s necessary ____ us to know some traffic rules . 7. _____ sweet music ! _____ fast he runs ! ( What or How )五 、Summarize the useful languages and read them. . 六 、Homework.Write six sentences using “ must , mustn’t , don’t “七 、The design of the blackboard , Section B 1 . must do , mustn’t do , ---Must I /we do ? --- Yes , you must .--- No , you needn’t . --- No , you don’ t have to . 2 . How terrible ! What a lovely cat ! 3. It’s necessary for your health . 4 . Smoking is bad for our health .