Unit 1 Great scientists
Teaching aims
1.To help students learn to describe people
2.To help students learn to read a narration about John Snow
3.To help students better understand “Great scientists”
4.To help students learn to u some important words and expressions
5.To help students identify examples of “The Past Participle (1) as the Predicative & the attribute”
Period 1 Warming up and reading
Teaching Procedures
I. Warming up
Step I Lead in
Talk about scientist.热量高的食物
T: Hi, morning, class. Nice to e you on this special day, the day when you become a nior two grader. I am happy to be with you helping you with your English. Today we are to read about a certain scientist. But first let’s define the word “scientist”. What is a scientist?
A scientist is a person who works in science, trying to understand how the univer or other things work.
Scientists can work in different areas of science. Here are some examples: Tho that study physics are physicists. Tho that study chemistry are chemists. Tho that study biology are biologists.貔貅的佩戴禁忌
Step II
Ask the students to try the quiz and find out who knows the most.
T: There are some great scientific achievements that have changed the world. Can you name some of them? What kind of role do they play in the field of science? Do the achievements have anything in common? Match the inventions with their inventors below before you answer all the questions.
1. Archimedes, Ancient Greek (287-212 BC), a mathematician.
林航不露圭角2. Charles Darwin, Britain (1808-1882). The name of the book is Origin of Species.
3. Thomas Newcomen, British (1663-1729), an inventor of steam engine.
4. Gregor Mendel, Czech, a botanist and geneticist.
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.
李元芳怎么玩
9. Zhang Heng, ancient China, an inventor.
10. Stepper Hawking, British, a physicist.
在新翻译II. Pre-reading
Step I
Get the students to discuss the questions on page 1 with their partners. Then ask the students to report their work. Encourage the students to express their different opinions.
1.What do you know about infectious dias?
Infectious dias can be spread to other people. They have an unknown cau and need public health care to solve them. People may be expod to infectious dia, so may animals, such as bird flu，AIDS, SARS are infectious dias. Infectious dias are difficult to cure.
2.What do you know about cholera?
Cholera is the illness caud by a bacterium called Vibrio cholerae. It infects people’s intestines(肠), causing diarrhea and leg cramps (抽筋).
向导的拼音
The most common cau of cholera is by someone eating food or drinking water that has been contaminated(污染) with the bacteria.
Cholera can be mild(不严重的) or even without immediate symptoms(症状), but a vere ca can lead to death without immediately treatment.
3. Do you know how to prove a new idea in scientific rearch?
Anybody might come out with a new idea. But how do we prove it in scientific rearch? There are ven stages in examining a new idea in scientific rearch. And they can be put in the following order. What order would you put the ven in? Just guess.
Find a problem→ Make up a question→ Think of a method→ Collect results→
Analy the results→ Draw a conclusion→ Repeat if necessary
III. Reading
Step I Pre-reading
1.Do you know John Snow?
John Snow is a well-known doctor in the 19th century in London and he defeated “King Cholera”.
2.Do you know what kind of dia is cholera?
It is a kind of terrible dia caud by drinking dirty water and it caud 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:
Step II Skimming
Read the passage and answer the questions.
1.Who defeats “King Cholera“? (John Snow)
2.What happened in 1854? (Cholera outbreak hit London.)
3.How many people died in 10 days? (500)
4.Why is there no death at No. 20 and 21 Broad Street as well as at No. 8 and 9 Cambridge Street?
厂下面一个人(The families had not drunk the water from the Broad Street pump.)
(Optional)
