发布者：刘艳芳 发布时间：2019-06-14 浏览数( -) 【举报】
Unit1 Great Scientists (Reading)
Teaching goals: to help students read for detailed information and try to use it for writing
Important points: the detailed information; sentences for giving suggestions; proper expressions for writing
Difficult point: reading for writing
Step1 Lead-in What do you know about infectious disease?
What should you do if you want to do research into a disease?
Step2 Reading
Fast- reading
Skimming
Skim the text and match the main idea to each paragraph
Scanning
Scan the text and answer the following questions.
1. What was John Snow?
2. What was to blame for the disease?
3. Why did he tell people to remove the handle from the pump?
Careful-reading
Para.1 ______________
1. What is Cholera?
2. Why is it called “King Cholera”?
3. What kind of person do you think John Snow is?
Pare.2 ________________
“The second suggested that people absorbed his disease into their bodies with their meals. (use a phrase to replace the underlined word)
Para.3 ______________
1. What did he do to prove what he thought was right?
He began his _______and gathered _________.
2. “In two particular streets, the cholera outbreak was so severe that more than 500 people died in ten days.” (Use one word to replace the underlined word)
Para.4 _______________
1. A _____gave him a valuable clue about the cause of the disease.
2. Which had no deaths according to the map?
A. 27Cambridge Street B. 24 Broad Street
C. 2 Cambridge Street D. 14 Broad Street
3. What does PH on the map refer to?
A. church B. street C. pub D. pump
Para.5 ________________
1. What did he do after studying the map?
2. What happened after the handle was removed?
Para.6 ________________
1. What’s the supporting evidence?
2. What carried the virus?
3. “With this extra evidence John Snow was able to announce with certainty that polluted water carried the virus.” This sentence shows that John Snow is_______.
A. determined B. curious C. cautious D. patient
Para.7 ________________
“The water companies were instructed not to expose people to polluted water any more.” (Choose the item with “expose” that has the same meaning)
A. My job as a journalist is to expose the truth.
B. Don’t expose babies to strong sunlight.
C. We want to expose the kids to as much art and culture as possible.
Step3 Comprehending (P3 T1)
Step4 Fill in the blanks
1. Don’t _______ (暴露)your skin to the sun for too long.
2. _________ you _______ (既不…也不) he is right.
3. ___________ (每当)I meet him, I always think of the things having happened between us.
4. ________________ (好像) she was lying.
5. Who is _____________ (责备) for the mistake?
6. It ____________ (暗示) that it was going to rain.
7. I suggested that he __________________ (戒烟) smoking.
Step5. Extra-reading
Tiredness, coughing, a running nose and a sore throat—among all sicknesses there is probably none more common than the flu, which we all get now and then.
However, bird flu is a completely different story.
Ten years ago, the H5N1 bird flu swept across 15 countries, including China, with sufferers reporting chest pain, difficult breathing, fever and severe coughing. More than 600 people were infected, and about 60 percent died. Now another type of bird flu hit Shanghai and three neighboring provinces, and this time the virus is called H7N9. By the afternoon of April 11, the new virus had taken nine lives out of 35 infected, according to Xinhua News Agency.
The “H” and “N” in the virus‟ name refers to two kinds of proteins on the surface of the virus. Any change of the numbers of the two proteins indicates a new mutation(变异). Most of the mutations only affect birds, such as chickens and pigeons, and don’t normally spread to humans. But once they do, the results can be disastrous.
“Any time an animal influenza virus crosses to humans, it is a cause for concern, ”Malik Peiris, virologist(病毒学家)at the University of Hong Kong, told Nature magazine. Take the SARS epidemic(传染病)10 years ago as an example. The virus behind the disease is thought to have jumped to humans from animals. The virus was a complete “stranger” to human bodies, which hadn‟t developed immunity against it.
But there is something more about the new H7N9 bird flu. Unlike the H5N1 bird flu, which causes severe sickness in birds, the H7N9 has been evolving under the radar(悄悄地)since it travels between birds without causing noticeable illness. That makes it difficult to keep track of the disease.
The good news is that there’s so far no sign that the virus is spreading from person to person. But since there is no vaccine for the disease yet, the World Health Organization recommends that you wash your hands after meeting with sick people and before and after you eat or prepare food, and they also suggest avoiding contact with birds or their eggs.
1. Which of the following statements is TRUE according to the text?
A. The H5N1 bird flu turned out to have something to do with the SARS epidemic.
B. More than 600 people across the world died from the H5N1 bird flu ten years ago.
C. Most of the mutations of the proteins in the bird flu virus are harmful to both birds and humans.
D. The name, H7N9 bird flu, shows that there have been new mutations of the proteins in the virus.
2. With the example of the SARS epidemic in Paragraph 5, the author intends to
A. introduce where the SARS virus came from
B. inform us of the harmful effects of the SARS epidemic ten years ago
C. show the horrible effects an animal influenza virus can have once it spreads to humans
D. compare the differences between the SARS epidemic and the H7N9 bird flu
3. What makes the H7N9 bird flu more frightening than the H5N1 bird flu according to the text?
A. It can cause severe sickness in birds.
B. It can spread from person to person.
C. It affects a greater number of birds.
D. It doesn’t sicken birds and thus can spread unnoticed.
4. What are people advised to do to protect themselves against the H7N9 bird flu?
a. To get vaccinated for the disease. b. To keep away from birds and their eggs.
c. To stop eating chickens and ducks. d. To avoid meeting with sick people.
e. To wash hands thoroughly and regularly.
A. a, b B. c, d C. b, e D. a, e
Step6. Writing (suggestion)
Write a letter to your friend about your suggestions on how to protect himself from bird flu.
1. 留心牲畜，减少接触。（livestock牲畜 expose）
2. 保持清洁，勤洗手。
3. 禽肉蛋一定要煮熟。
4. 加强锻炼。
Giving suggestions
1. 我想建议…____________________________________________________
2. 你问我关于…的意见，我会尝试着提出一些建议。
__________________________________________________________________
3. 如果我是你，我会…_____________________________________________
4. 我认为你可以…_________________________________________________
5. 首先，我想如果….可能会更好。_____________________________________
6. 我想如果你能…，可能会更有利。____________________________________
7. 我相信你会考虑我的建议的。_________________________________________
8. 我希望你会觉得这些建议/意见/提议实用/有用/有帮助。_____________________________________________________________________
9. 如果这方面有所改善我会非常开心的。________________________________________________________________
10. 我时刻准备着就此事进行更详尽的讨论。
_____________________________________________________________________