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: Gao Cuiwei
Teaching time：one class
Teaching aims：
1. New words: article , smoke, cancer, litter, dustbin, lawn, energy, necessary, enough
2. 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.
1)What is Wang Junfeng reading ?
2)What does Maria’s father think of smoking ?
3)What must Maria do ?
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 .