新課標(biāo)人教版原創(chuàng)課件：Unit4Astronomy-thescienceofthestarsUsinglanguagelistening

1、Unit 4 Astronomy: the science of the stars(using language) - listening, speaking & writingthe natural force that causes an object to move toward the centre of the earth. GravityListening Isaac NewtonAlbert EinsteinStephen HawkingScientists who studies gravityUniversal Gravitation 萬有引力Relativity(相對(duì)論)

2、 The Cosmos (宇宙)The theory about black holes (黑洞理論)1. The text is about how three scientists wanted to find out about the beginning of the universe.2. The text is about how the idea of gravity has developed over a long period of time.3. The text is about the importance of three scientists and their

3、work. Main ideaListen to the tape and choose the best summary of the listening text. They wanted to explain how the universe worked but not how it began.Too general and does not give the detail about the listeing text.Idea developmentIsaac Newton_ _ have a force which _ things _ them.The bigger the

4、object, the _ the gravity.Albert EinsteinLarge objects make _ and _ bend; the larger the object, the _ _ and _ bends.Time goes slower in very _ _.Stephen HawkingBlack holes have a very large _ that nothing can escape from its _.If you _ _ the edge, you cannot get out; but if you do not, you may be a

5、ble to _.Listen again and fill in the chart.Large objectspullstowardsstrongerspacetimefurther spacetimestronggravitymassgravitycross overescapeBecause of the existence of gravity, things near the earth will be drawn towards the earth centre.things in outer space will lose weight and float in the air

6、.Speaking So, life is different on a spaceship. There is little gravity so that things float aroundIf you planned to travel to the moon, what matters would you meet with?ProblemsHow to cool youHow to breathehow to eat and drinkHow to protect your skinHow to stop flying off the moons surfaceSpacesuit

7、sSpace FoodSpace Buggy登月車Space CameraYou may think of many other problems one can meet with when travel to the moon. Make a list of your ideas, and discuss the solutions to the problems.指示 （Instructions）:Please look at/ listen to Please pay attention to Please check that Make sure you Dont forget to

8、 Watch out for You need Youd better You must/ mustnt The expressions you may use:Sample dialogue:A: Im going to visit the moon. Im leaving tomorrow.B: How exciting! Please check that you have got the correct sort of spacesuit. You need the kind that will keep you warm if its too cold.A: Of course!B:

9、 Make sure you know all the safety rules. Its not safe to stand on a comet or get too close. There is always a strong wind in space.A: I wont leave the spaceship except that I take photos.B: Photos? Just think of the dust in the air. It will make taking photos very difficult.A: Well, Ill take some a

10、nyway.B: Watch out for the space wind! It can be very dangerous.A: Yes, I know that.B: Dont forget to watch the time as you leave the earth. Please pay attention to everything your space guide says. Dont go off on your own. Look at your temperature on your spacesuit all the time. If its too low you

11、need to warm it up and if its too high you need to cool it down. Anyway, have a good trip!A: Thank you. I will.Writing Write a short article explaining one of the problems you might have on the moon.(focus on what you should do to overcome the difficulty and have a happy visit)1. Main idea:Suggestions on your writing:I try to solve the problems.If I was lucky enough to have a chance to make