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Unit 1　Science and Scientists
Period 1 Reading and Thinking（导学案）
Ⅰ. Learning Objectives（学习目标）
1. Recognize and try to use the words and phrases in the lesson.
2. Learn and develop the noble spirits.（崇高的精神）
3. Analyze Para. 1-2 and summarize John Snow’s qualities.
4. Improve your reading ability by skimming and scanning.
Ⅱ. Teaching Procedures
Step 1 Lead in
Words Review
Look at pictures and answer the questions.
Are you familiar with these situations
Besides coronavirus, what other kinds of epidemics(流行病) do you know
Video Time: How much do you know about cholera
Step 2 Pre-reading
Predict the main idea of the passage: the text is mainly about ____________ and __________ he defeated “king cholera”.
Step 3 While-reading
Fast reading
Read the whole text quickly and match the main idea of each paragraph.
Para. 1 A. Snow began his study by marking on the map.
Para. 2 B. John Snow decided to prove the second theory.
Para. 3 C. Snow's contributions.
Para. 4 D. John Snow desired to destroy cholera.
Para. 5 E.Truth of the infection of cholera.
Detailed Reading
Watch the video and complete the mind map.
What It's one of the most feared____________in the world, because it causes diarrhoea, dehydration, and even __________.
When In the early ____________century
Where _________
What’s the result ______________people died from the disease.
Who A_______________doctor who had a desire to __________cholera once and for all.
Read Para.1 and answer the following questions.
Which symptom（症状）isn’t mentioned in the first paragraph
A. diarrhoea
B. fever
C. dehydration
D. death
Why was John Snow frustrated as a young doctor
A. Because cholera used to be one of the most feared.
B. Because cholera caused death.
C. Because no one knew how to prevent or treat cholera.
D. Because he lost his desire to destroy cholera.
What does “ King ” mean in the title
A.The name of cholera.
B.The causes of cholera.
C.Cholera spread fast.
D.Cholera is a deadly disease and difficult to cure.
(3) Watch the video and judge True or False.
1. The purpose of two theories was to prevent cholera from spreading.
2. John Snow agreed with the second theory that bad air caused the disease.
3. The second theory is correct, so Snow needn’t evidence to prove it.
4. Snow began to investigate when an outbreak of cholera hit London in 1854.
5. He discovered that the cholera outbreak was severe in a particular street.
Step 4 Post-reading
Reading for thinking
What qualities did John Snow have Find the supporting sentences in Para.1-2 and underline them on your book.
Summarize important phrases
Use important phrases to introduce John Snow and cholera.
In the early 19th century, cholera was _________________________________ in the world. Millions of people died from the disease. John Snow, who _________________ Queen Victoria, ______________________ because no one knew how to prevent or treat cholera. He ____________________the theory that cholera was caused by_____________________________. In 1854, when an outbreak of cholera hit London, he discovered that cholera was ___________. However, he never ___________________destroy cholera once and for all and _______________________ find out the methods.
Step 5 Homework
So what is the method John Snow found
1. Find the method and solution in paragraph 3.
2. Find the truth and Snow’s contributions in Paragraph 4&5.
3. Underline sentences on your textbook.

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