【方便下载 共21份打包】初中英语多媒体教学课件：Unit4-6（冀教版八下）

Unit 4 Look into Science ! Lesson 25 Let’s Do an Experiment! Lead in 1. Do you like to do experiments? 2.What experiments have you done? New words Presentation 1.predict v. 预测 2.experiment n. 实验；试验 3.jar n. 广口瓶；罐子 4.upside n. 上部；上边 5.prove v. 证实；证明 6.observe v. 观察；监视 7.scientific adj. 科学的 What’s a theory? A “theory” is an idea. A theory predicts what will happen. An experiment shows what happens. right side up upside down Look at the experiment. 1. What’s the meaning of the word “theory”? 2. What’s the meaning of the word “experiment”? 3. Why does Danny want to do the experiment outside? 4. Will Brian do the experiment inside? 5. What does Jenny want to do? Read carefully and answer questions. A “theory” is an idea. An “experiment” shows what happens. Danny is not sure whether the floor will get wet. Yes. He is sure the floor won’t get wet. She wants to do the experiment and see what happens. If Brian does the experiment, will the floor get wet? Imagine what will happen. With a partner, make up a dialogue. Pair Work 1. I fill a jar with water.     我用水把瓶子装满。     fill …with…用……装满……。 例如：     I have filled my case with clothes.     我已经把箱子装满了衣服。     Could you help me fill the glass with tea?     你能帮我在玻璃杯里倒上茶吗？     be filled with …充满…… ，相当于“be full of …”。 例如：     On hearing the news, her eyes were filled with tears.     听到这个消息，她热泪盈眶。 Language Points 2. Brian has one theory, and Danny has another. 布莱恩有一套理论，丹尼又有另一套理论。 another 再一个；另一个（三者或三者以上） another＋可数名词单数 another day 另一天 another＋数词＋可数名词复数 = 数词＋more＋可数名词复数 another ten days = ten more days 再十天   另外：the other（另一个）常和one连用，表示两者中 一个…… ，另一个……。  例如: We have two new students this term. One is a girl, and the other is a boy. 这个学期我们有两个新学生。一个是女 孩，另一个是男孩。 3. We can prove who’s right.     我们能证明谁是对的。     prove 作及物动词，意为“证明，证实”，常用于     prove sth. （to sb. ）     prove （to sb. ）+从句     prove …（to be）+adj. （形容词）/n.（名词）。 例如：     The fact