仁爱版初中英语八年级上册教案 Unit 2 Keeping Healthy Topic 2 I must ask him to give up smoking.Section B Teaching person: Teaching time：one cla Teaching aims：
1.New words: article , smoke, cancer, litter, dustbin, lawn, energy, neceary, enough 2.Learn some useful sentences: (1) How terrible! (2) Don’t walk on the lawn.(3) It’s neceary 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 neceary 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.. 1
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 leon:
（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.
1)What is Wang Junfeng reading ? He is reading an article about smoking in the newspaper.2)What does Maria’s father think of smoking ? Because he thinks smoking can help him relax.3)Why does Maria want to ask her father to give up smoking? Because smoking is bad for our lungs and it can even cause cancer.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 “ 2
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 expreions.It’s neceary for sb.to do sth.For example : It’s neceary 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 neceary ____ 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 “
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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 neceary for your health . 4 .Smoking is bad for our health .
