人教版高中英语必修5+Unit1+第1课时+Great+Scientists+教案2.doc

Unit 1 Great Scientists教案

The general analysis of this period

This period focuses on the reading passage, which is about John Snow and King

Cholera. First, teacher can have a competition about information about some

scientists mentioned in Warming Up. Then the teacher can make full use of the

questions in Pre-reading. This part is to make for preparing for understanding the

passage. To develop students’ different reading skills, the teacher can design different

reading tasks, such as answering questions and filling the form, etc. Then teacher can

ask students to retell the passage as homework.

Three Dimensional Teaching Aims

Knowledge Aims：

a.Have a good understanding of the text through exercises.

b.Key words expressions:

a. attend, expose, cure, control, absorb, severe, valuable, pump, pub, blame,

handle, link, in addition, announce...

b. expose…to, test, defeat, reject, examine, apart from, contribute to, make a

conclusion...

Ability Aims:

a.Grasp some reading skills.

b. Develop the ability to describe some great people.

Emotional Aims：

a.Arouse students’ interest in science.

b. Encourage students to study hard to devote to science.

Teaching Important Points:

a.Have a good understanding of the text by doing exercises.

b.Develop students’ different reading skills, especially gist reading and

understanding beyond lines.

Teaching Difficult Points

a.Know the meaning between lines and beyond lines. b.Learn different reading skills.

Teaching Aids

Multi-media classroom and other normal teaching tools.

Teaching Procedure

Step 1 Greeting

Greet students as usual.

Step 2 Warming up

1. (Pair work) what five most important qualities do you think a scientist should have?

Give reasons.

clever/talented strict patient creative confident brave

determined/strong-willed positive honest energetic

intelligent/hard-working ambitious careful co-operative

2. (Group work) Ex2, p1

Do you know how to prove a new idea in scientific research? Discuss in groups

the stages in examining a new scientific idea. What order would you put them in?

Draw a conclusion Think of a method Collect results Make up a

question Find a problem Analyze the results Repeat if necessary

Step 3 pre-reading

1. Invite 2-3 Ss to introduce the scientists they admire most to the class

2. Background introduction to John Snow

John Snow (1813-1858) was born and worked as a doctor in Great Britain. He was

originally an anesthetist(麻醉师).He was so famous that he became the doctor for

Queen Victoria at the births of her many children.

Four outbreaks of cholera in the 1830s and 1840s killed many people in England. In

1854, the most terrible outbreak of cholera which ever occurred in the kingdom

began. It was so violent and sudden that 127 people died in the first three days.

3. Give information of the deadly disease cholera

1) What infectious diseases do you know? (AIDS, SARS,H5N1,pig-borne disease 猪链球菌)

2) What kind of disease is it ? Name of cholera

Symptom(症状) severe vomit (呕吐) and diarrhoea (腹泻)

Aftereffect die quickly from a loss of liquid

4. Make up a question

1）What was the cause of this disease? How did John Snow find it out?

2）Get Ss to imagine and describe How John Snow defeat cholera by making use of

the key words.

Cholera, outbreak, severe, deadly, infectious, examine, expose, analyze, control, cure,

defeat

5. New Words

Work in pairs and match the words with their definitions.

A. attend

B. control

C. handle

D. blame

E. absorb

F. announce

G. immediately

H. be linked to

I. in addition

G. expose 1. have control, authority, power over

2. part of a tool, bucket, etc. by which it may be held in the

hand

3. take or suck in

4. at once or without delay

5. uncover, leave uncovered or unprotected

6. as well, besides

7. be joined with, be connected with

8. wait on, serve, look after

9. fix on sb, the responsibility for sth done or not done

10. make known

Suggested answer:

B-1 C-2 E-3 G-4 j-5 I-6 H-7 A-8 D-9 F-10

Step 4 Reading

1. Fast reading : Scanning

Scan the passage and find out what are mentioned in the passage.

1) John Snow’s wish

2) John Snow’s attending Queen Victoria 3) Two theories explaining the cause of Cholera

4) John Snow’s examination of the source of the water

5) Evidence for the cause of Cholera

6) The source of all water supplies

7) The spread of Cholera by germs in polluted water

Suggested answer: 1), 3),4), 5),7)

2. Second reading : Skimming

Read the text quickly and find out the main idea of each paragraph

Para 1: the problem Para 2: the cause----two theories

Para 3: the method Para 4: the discovery Para 5: the result