新课标人教版课件系列《高中英语》必修 3-6.4Period 2 Using Language & Reading Taskthe natural force that causes an object to move toward the centre of the earth. GravityIsaac NewtonAlbert EinsteinStephen HawkingGravity1. I heard about how three men made mistakes when they tried to describe 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 has developed over a long period of time.4. I heard about three scientists and their work. Main ideaNewtonEinsteinHawkingDatesIdeaOther info.1642-17271879-19551942-Everything is affected by a force called gravityGravity is connected to time and space“Black holes” “eat” objects but also “spit” them out.It was only about the earth.It was about the universe.It was about things found in the universe called “black holes”.A visit to the moonOn the moonThe change of gravityIn spaceVery strongVery heavyDisappeared Floated weightlessly Very light The mass will be lessLeave the earthLast month I visited the moon with my friend. Before we left, I was told the force of g_____ would change three times on our journey. Then we took off. As we left the earth, I became very h_______. Gradually the weight l_______. When I was in space, it d__________. We f_______ weightlessly in the cabin and I c_____ ___. When I was on the moon, I was surprised to find out even walking needs lots of practice n__ ____ gravity changed. The returning of the earth was very f_________. We were amazed to watch fire b____ ____ on the outside of the ship. gravityheavylesseneddisappearedfloatedcheered upnow thatfrighteningbreak outA black hole About usAbout the black holeAbout othersCircle of lightsLarge starsLike a mouth...
