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1、 Gravity made everything fall back to the earth.Isaac Newton,牛顿牛顿 16421727 Universal gravity万有引力万有引力Pre-listeningPre-listeningHes a Jew. Hes famous for his Theory of Relativity.Einstein, Albert (1879-1955)爱恩斯坦爱恩斯坦Relativity（相对论）（相对论）Black holes （黑洞）（黑洞）Listen for the first timeIsaac NewtonAlbert Ein
2、steinStephen HawkingDates1642-1727 1879-19551942-ListeningListeningListen for the second timeIsaac Newton Albert EinsteinStephen HawkingIdeaEverything falls back to the earth because of a pull called gravity.Gravity is different in space.Black holes would eat stars and they may also push stars into
3、space.Listen for the third timeIsaac NewtonAlbert EinsteinStephen HawkingOther Informa-tionNewtons gravity was about earth.Einsteins idea about gravity was about universe.Hawkings idea was about black holes.Which sentence is correct?1. I heard about how three men made mistakes when they tried to des
4、cribe gravity.2. I heard about how three men wanted to find out about the beginning of the universe.3. I heard about how the idea of gravity had developed over a long period of time.4. I heard about three scientists and their work.answering the following answering the following questionsquestionsDo
5、you want to visit the moon?Warming upThe photo from the moonChinas first astronaut-Yang LiweiWrite down the three ways in which gravity changed for Li Yanping.scanning& skimming The way gravity changedLeft the earthIn spaceOn the moon3. It became very light.1.The gravity became very strong.2. The gr
6、avity disappeared. His weights changed three times too. Now write them down.The weight changedLeft the earthIn spaceOn the moonHe became very heavy.He had no weight and could float around like a feather. He was about one-sixth of his weight on the earth.What would you need? Speaking task:Speaking ta
7、sk:spaceshipspacesuitwaterOxygen producer a space cameraIf we were going to the moonto keep you coolto stop you flying off into spaceto help you breathe oxygento stop your food from floating awayclothes for exerciseclothes for walking on the moonto travel on the moonto give shadeto protect your skin
8、to take photographsDiscussionDiscussionFill in the chart. spaceship with water to cool youcarrying oxygen tanksspacesuitspacebuggyspacesuita rope to tie you to the spaceship space food that you can eat easilyspacesuitsunglassesspace cameraStudents work in pairs and give each other a number of “does”
9、 and “donts”for going to the moon.When finished,you can write some suggestions of yours down and read them out to the rest of the class.Discussion:These words and phrases may help you:DontsDoes You mustntPlease dontRemember never doWatch out forPlease pay attention to.Youd better doDont forget to Ma
10、ke sure you doBrainstorming for writing What will we meet on the moon?when wherewhatwho problemsSolve (how)writing an outlineHow to write an outline?Outline (main idea)The first paragraph(introduction)Body (your own ideas on the item)Conclusion (summing up)headingsumming upYou are expected to design
11、 3 problems:Main idea:explain the three problems you will have while visiting the moon.Paragraph 1: problem 1 and how you will solve it.Paragraph 2: problem 2 and how you will solve it.Paragraph 3: problem 3 and how you will solve it.Summing up: how successful the holiday will be if you follow this advice.Homework Write an article telling your teacher and classmates about your ideas and hopes for traveling in space.同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
