人教修订版高一英语下Unit 16 Scientists at work
Period 1 & 2教案

Teaching Aims:
1.Talk about science and scientists
2.Practise giving instructions
3.Learn the key words and expressions:
experiment, disadvantage, application, nuclear, string, lightning, thunderstorm, electric, engine, frame, conduct , prove, tear, charge
Period 1 Warming-up, Listening & Speaking
Brainstorm
Ask students to collect the words related to the subjects of science.










Discussion:
1)Discuss with your partner and try to give an example of what you learn about for each field of science
2)What’s the 2nd common feature of the three subjects? (doing experiments)
3). What mistakes do we usually/easily make in the labs?(listening)
1.What is the most important thing students should remember?
A.safety B. teacher’s instructions C. experiments
2.What is the first thing students should do when they come into the lab?
A. Tie the hair up B. Follow the teacher’s instructions
C. Don’t touch anything unless your teacher tells you to
3.Students should be careful when smelling from bottles because gases can be very _____.
A. harmful B. delicious C. dangerous
4.What is to be done when anything gets into your eyes?
A.wash your hands quickly B. wash you eyes with a lot of water immediately
B.clear it with your finger
5.What should students do before leaving the lab?
A.Clear everything away and leave the classroom neat and clean
B. turn off the lights and shut the windows C. Both A and B

Period 2 Reading & Integrating skills
1. Read for the first time and answer the questions:
1)What is the relationship between electricity and lightening?
2)Which of the following pictures show how Franklin did his experiments?
3) Do Ex I. Understanding the text.:
1.The passage is mainly about_________________.
A how to make a strong kite and fly it high in the sky.
B. a number of experiments to show what electricity is
C. an experiment to prove that lighting and electricity are the same.
D. how to use a kite to attract lighting and make use of it in our everyday life
2.Before his experiment, Franklin had to prepare the following EXCEPT _____.
A. a strong kite B. really had weather C. a metal key D. a condenser
3.In Franklin’s experiment, a condenser was used to _______.
A.store electricity B. make electricity
C. attract lightning D. protect him from electricity
4.Which can be learned from paragraph 3 ?
A. Franklin was shocked at the results of his kite experiment
B. Franklin could have carried out the experiment
C. When a string gets wet it will conduct electricity much better.
D. Before Franklin felt an electric shock, his hair must have stood up.
5.The writer thinks it better to make the kite out of silk than paper because______.
A.silk conducts electricity better
B. silk can protect people from electric shocks
C. a silk kite is much lighter in weight
D. it’ll be longer before a silk kite is damaged (CBACD)
2. Read for the second time and grasp more detailed information about the experiment and complete the following chart.
The experiment’s name

Aim/ Purpose
To ____________________________________________.
Time

Materials

Results
The string _______________, and a great deal of electricity __________________________________.
3. Discussion:
1)Discuss with your partners and try to draw a sketch of the kite which was used in the experiment according to the text.
2) Integrating Skills
Work in pairs and discuss the advantages and disadvantages of the following scientific discoveries and applications using the useful expressions .

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