Unit 1 Great Scientists英文教案
1）what was the cause of this disease ? 2)how did john snow find it out?
para 1: the problem para 2: the cause----two theories para 3: the method
para 4: the discovery para 5: the result and conclusion para 6: the suggestion
show pictures of water pump and teach handle
careful reading: read the text carefully and fill in the chart (ex 1, p3)
step 4 discussion
1. (group work) discuss how john snow investigate cholera. put the stages in examining the disease in the right order.
para. stages in an experiment examples in this investigation
1 find a problem what cause colera?
2 make up a question which theory is correct?
3 think of a method collect data on those who were ill or died and where to get water
4 collect results plot information on a map to find out where people die or didn’tdie
5 analyse results analyse the water to see if that was the cause of the illness
6 repeat if neccessary find out evidence to confirm you conclusion
7 draw a conclusion the water is to blame
2. p3, ex2, q3: do you think john snow would have solved this problem without the map? give your reasons.
step vi. homework
1)finish p4, ex 1,2(on sb) ex3 make sentences on exercisebook (make one’s way to, make up one’s mind, make sure, make room for)
2)find out the phrases according to the chinese (part 1 on the paper for language points)
3)retell the story john snow defeats “king cholera” by following the 7 steps on p1
4. read notes to unit 1, p78-79, find out some difficult points while reading the text
period 3
1.learn expressions & phrases
2.learn.language points ：difficult and important points:
1）language points 2）the usage of “suggest & in addition”
teaching methods: presentation & practice
teaching procedures:
step i homework checking.
step ii. expressions & phrases
1.know about… 了解……的情況
2.lift up 舉起;抬起;提升
3.steam engine 蒸汽機
4.physical characteristic 人體的特征
5.put forward a theory about black holes
提出一個有關黑洞的理論
6. infectious disease 傳染性的疾病
7. in scientific research 在科學研究上