(共19张PPT)
人教版 高二《必修5》
Unit 1
Great Scientists
Teaching aims:
1.Enable the students to learn about some famous scientists and their contributions .
2. Practice expressing the stages in examining a new scientific idea.
3. Try to create a motivating learning atmosphere .
I. Warming
1. Instruct students to carry out some?limb movements to get them motivated eg:
Move your heads (up / down)
Shake your heads (right/left)
Pat your shoulders(right/left)
Straighten your back……
Revision:
Try to say the following new words and phrases according to the Chinese translation:
1. ___________ adj.科学的
2. ___________ vt. & n. 治愈,痊愈,治疗
3. ___________ vt. 出席,参观;照料
4. ___________ vi. 推断出;结束
5. ___________ vt.暴露; 揭发; 曝光
6. ___________ vt.指责 n.过失,责备
7. ___________ vt. 污染,弄脏
8. ___________ vt. & vi. 捐献,贡献
blame
scientific
cure
attend
conclude
expose
pollute
contribute
1. 提出 ______________________
2. 得出结论 ______________________
3. 应受责备 ______________________
4. 也,另外,此外 ______________________
5. 将…和…连接或联系起来________________
6. 导致,通向 ______________________
7. 调查,研究 ______________________
8. 有时,不时 ______________________
lead to
put forward
draw a conclusion
be to blame
in addition
link... to...
look into
at times
2.Do you happen to know these great scientists?
Archimedes, Charles Darwin,
Thomas Newcomen, Gregor Mendel
Maries Curie, Thomas Edison
Sir Humphrey Davy, Zhang Heng
Stephen Hawking, Leonardo da Vinci
Ten questions for you?
1.Who discovered that objects in water are lifted up by a force that helps them float?
2.Who wrote a book explaining how animals and plants developed as the environment changed?
Archimedes
Charles Darwin
3.Who invented the first steam engine?
Thomas Newcomen
4.Who used peas to show how physical characteristics are passed form parents to their children?
Gregor Mendel
5.Who discovered radium?
6.Who invented the way of giving electricity to everybody in large cities?
7.Who was the painter that studied dead bodies to improve his painting of people?
Maries Curie
Thomas Edison
Leonardo da Vinci
8.Who invented a lamp to keep miner safe underground?
9.Who invented the earliest instrument to tell people where earthquakes happened?
10.Who put forward a theory about black holes?
Sir Humphrey Davy
Zhang Heng
Stephen Hawking
Summary
1. Archimedes, Ancient Greek (287-212 BC), a mathematician.
2. Charles Darwin, Britain (1808-1882).
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3. Thomas Newcomen, British (1663-1729), an inventor of steam engine.
4. Gregor Mendel, Czech, a botanist(植物学家 and geneticist(遗传学家).
5. Marie Curie, Polish and French, a chemist and physicist.
6. Thomas Edison, American, an inventor.
7. Leonardo da Vinci, Italian, an artist.
8. Sir Humphry Davy, British, an inventor and chemist.
9. Zhang Heng, ancient China, an inventor.
10. Stephen Hawking, British, a physicist.
Do you know how to prove a new idea in science research?
Draw a conclusion
Think of a method
Collect results
Make a question
Find a problem
Analyze the results
Finding supporting evidence
1
2
3
4
5
6
7
II.Pre-reading: Do you know John Snow?
Do you know what kind of disease is cholera?
John Snow is a well-known doctor in the 19th century in London and he defeated “King Cholera”.
It is a kind of terrible disease caused by drinking dirty water and it caused a lot of deaths in the old times and it was very difficult to defeat.
Let’s get to know how Dr. John Snow defeated “King Cholera” in 1854 in London in this reading passage: listen to the recording
and try to immitate:
John Snow Defeats “King Cholera”
1.Who defeats “King Cholera“?
2.What happened in 1854?
3.How many people died in 10 days?
John Snow
Cholera outbreak hit London.
More than 500
Task 1:Skim and anwser:
Task 2:Try to fill in the blanks:
John Snow was a well-known ______ in London in the ___ century. He wanted to find the ______ of cholera in order to ______ it. In 1854 when a cholera ______ out, he began to gather information. He ______ on a map where all the dead people had lived and he found that many people who had drunk the dirty water from the ______ died. So he decided that the polluted water carried cholera. He suggested that the _____ of all water supply be _______ and new methods of ________ with polluted water be found. Finally, “King Cholera” was defeated.
doctor
19th
cause
defeat
broke
marked
pump
source
examined
dealing
Homework:
1.Learn the words and expressions in
this unit by heart.
2.Do Ex 1,2,3 on page 4.
3.Read the text John Snow Defeats “King Cholera” after class.