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Ⅵ教学用具: jar, cardboard, water
Ⅶ 教学过程：
Step1. Teacher brings the jar, cardboard and water to the class. Show them to the students and ask what experiments we can do with them. Let the students show them and explain the reasons to the students.
Let the students work in groups and discuss the experiments. When one group is doing the experiments, the others can ask the questions. The teacher can ask questions, too.
Step2. Now let the students open their books and guess what the experiment is. Ask the students to say it in English.
Step3. Read the text silently and answers the following questions.
⑴. What keeps the water in the jar?
⑵. Is Jenny sure of her theory? How do you know?
⑶.Why does Danny put on his raincoat?
⑷. What does Danny conclude?
Step4. Read the text carefully and check the answers. Explain some words and expressions to the class.
Step5. Explain some?words?and?expressions?to?the?class.
do an experiment 做实验
同义句：carry out/make an experiment
2. I fill a jar with?water.?我用水把瓶子装满。
fill…with… 用……装满……(主语是人)
同义句：be filled with.../ be full of... (主语是物)
学生用书装满书包: Students filled their schoolbags with books.
Their schoolbags are filled with / full of books.
3. I turn the jar upside down. 我把广口瓶倒过来。
turn…upside down 把……翻转、倒过来
你能把这个玻璃杯倒过来吗？Can you turn the glass upside down?
反义短语：turn…right side up 把……正面朝上
4. You think the water will pour out, Danny. 丹尼，你认为水会洒出来。
pour在本句中的意思是“涌流”。它还有“倒; 下倾盆大雨：倾诉”的意思。
She poured the rice carefully into the pot. 她小心翼翼地把大米倒入灌中。
The rain has been pouring all day. 倾盆大雨下了一整天了。
You can pour your troubles to a close friend. 你可以向亲密朋友倾诉烦心事。
5. I am so sure of my theory.我如此确信我的理论。
be sure of… 确信……