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Have a dictation about the words and phrases of last lesson.
Step2: To show learning aims.
1.Master the new words and expressions: experiment,jar,upside,pour,correct,scientific, method,raincoat,force,pressure, conclude, fill…with,cover…with, turn…upside down, pour out
2. To understand the theory of the experiment.
3. To do the experiment and get the scientific conclusion
Step3: lead-in
Free talk:
Show the questions:
· What kinds of experiments have you done in science class?
· If you hold a jar that is filled with water upside down, what will happen ?
Step4: Read the lesson and answer the questions
1. Where does Danny think they should do the experiment?
2. What keeps the water in the jar?
3. Is Jenny sure of her theory? How do you know?
4. Why does Danny put on his raincoat?
5. What does Danny conclude?
一、根据句意及汉语提示填写单词。
1. The________(正确的) answers can be found on the next page.
2. Tony wants to do an ________ (实验) to test his theory.
3. You can’t ________ (迫使) others to do what they hate.
4. I think this is the best______ (方法) to solve the problem.
5. Betty, you’d better take your_______ (雨衣). The weatherman said it would rain this afternoon.
二、根据汉语意思补全句子，每空一词。
1. 首先, 捡起塑料袋并把它的开口朝下。
First, pick up the plastic bag and it .
2. 这件衬衣不够大。
This shirt isn’t .
3. 我不知道哪条是回宾馆的路。
I don’t know_______ _______ _____ back to the hotel.Step5:Do the experiment
Show the experiment to students