AVISITTOTHEMOON必威体育精装版.ppt

Look at the pictures and think: where are they? why they can fly like this? Language Points 地球引力 the force of gravity 离开 be off 逃离地球的引力 escape the pull of the earth’s gravity 减少重量 lessen the weight. 1. I was lucky enough to have a chance to make a trip into space. have a chance to do sth. Mary is very happy that she has a chance to make a trip into space. 3. ... “walking does need a bit of practice now that gravity has changed.” ......既然引力改变了，走路也的确需要练一练了。 Translation: 1. 既然你忙, 就让我给你做吧。 Now that you are busy, let me do it for you. 2. 既然人都齐了, 咱们开始干吧。 Now that everyone is here let’s start work． 4. 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. 美国内战爆发于1861年。 2) 发生争吵 　　A quarrel broke out between them. 他们之间发生了争吵。 3) (火灾)发生 　 A?fire?broke?out?in?his?house?last? night.? 昨晚他家里失火了。 与break相关的短语: break down 打破; 毁掉; 破除; 坍塌; 坏掉 break in 破门而入; 打断 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. 2). “A + be + 倍数 +形容词比较级 + than + B ” The Yangtze River is almost twice longer than the Pearl River. 长江差不多比珠江长两倍。 The number of students in our school is three times larger than that in theirs. 　?? 我们学校的学生数量比他们学校的多三倍。 3). “A + be + 倍数 + the +名词 (size, length, amount) + of + B” The newly broadened square is four times the size of the previous one.  新扩建的广场是未扩建时的四倍大。 — Do you regret _______(pay) 100 dollars for the painting? — No, I would gladly have paid __________ (两倍那么多了)for it. 　　 　　( paying; twice as much) Homework 1. exercise book Part 5 2. 王后雄 section C 3. 背诵新概念两篇 4. 预习Unit 5 的单词 * How many satellites do you know the earth has? Unit 4 Who is the firs