What should we do to fight SARS

1. (完成1c，重點訓練don’t have to …/ needn’t …的用法。練習本課目標語言。)
t: let’s do 1c. first read the dialogs, then find the target language “don’t have to/needn’t”.
2. (先師生問答，然后由學生兩人一組問答。)
example:
t: must we finish homework on time?
s1: yes, we must.
t: must you finish it now?
s2: no, we don’t have to.
s3: no, we needn’t.
3. (看2中的圖片，討論怎樣預防sars。)
  t: look  at the pictures in 2, and discuss what should we do to fight sars.
  (討論幾分鐘后，要求學生完成2里面的練習。提示學生注意should, had better, must的用法。)
  t: follow the examples to make dialogs using the sentence patterns:“we should…/we had better …/we must …”.
  example:
  dialog 1
  a: what should we do to fight sars?
  b: we should do more exercise.
  dialog 2
  a: what should we do to fight sars?
  b: we had better wash hands often.
  dialog 3
  a: what should we do to fight sars?
  b: we must keep away from animals.
  (學生小組練習之后，核對答案。教師可以請幾組同學到講臺前為大家表演。適當講解keep away from的用法，并讓學生造句鞏固。)
 (板書)
keep away from
step 5  project 第五步  綜合探究活動(時間:7分鐘)
1. (四人一組做一個采訪。一人扮演記者，其他三人扮演醫(yī)生。記者采訪如何預防sars，醫(yī)生回答記者的提問。評出優(yōu)勝的組。 )
2. homework:
  ( 寫一篇小短文來說明如何預防sars。)
板書設計：
what should we do to fight sars?
section a
hurry up   sars spreads easily among people.
go ahead   we should eat healthy food and do more exercise to build
    up our hobbies.
do exercise   we shouldn’t go  to crowded places.
crowded places  we don’t have to keep the windows open all the time.
keep away (from) must we do more exercise?