高中英语人教版必修三Unit4Usinglanguage课件.ppt

Using language:A visit to the moon; “One small step for a man, one giant leap for mankind”. ;spacewalk;;float ;zero gravity/ weightless;We visited the moon in our spaceship.;The force of gravity would change four times on their journey . ( ) 2. When they were on the moon, they would not feel the gravity because there was no gravity on the moon. ( ) 3. Since the gravity has changed, their walk didn’t need a lot of practice. ( ) 4. “A visit to the moon” was not a real story but science fiction .( );Read and then describe the three ways in which gravity changed for Li Yanping and how his weight changed.; 1. Last month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. ; have a chance to do 有机会做某事 I hope I can have a chance to travel to space. give sb a chance 给某人机会 Could you give me one more chance? by chance =by accident I discovered it by chance.; 2. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s. ; ; ;1). “A + be + 倍数 + as +形容词原级 + as + B”. This tree is three times as tall as that one. His father is twice as old as he. ; The Yangtze River is almost twice longer than the Pearl River. ; ; 5. ... “walking does need a bit of practice now that gravity has changed.;6. We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased. break out 它与happen, take place, come out等词的用法一样，是不及物动词，不能带宾语，不能用于被动语态。; 1) 战争爆发 The American Civil War broke out in 1861. 2) 发生争吵 A quarrel broke out between them. ; break down (精神、身体）崩溃；（谈判等）破裂 break in 破门而入; 打断;;;Homework