英语Unit4《Astronomythescienceofthestars》课件Reading2.docx

1、英语Unit4Astronomythescienceofthestars课件Reading2Look at the pictures! spacewalk一个苹果从树上掉下來；一个球被抛出；航天氐机绕 地球运动；月球绕地球运行，所有这些都显示了地球 引力的影响Write down the three ways in which gravity changed for Li Yanping.w_kW r* MXWtAAU, jcfoKMictMifi t9i/rAX*fvu rc*The way gravity changedLeft the earth1 The gravity became

2、very strong In space2. The gravity disappeared.On the moon3. It became very light.The weight changedLeft the earthHe became very heavy.In spaceHe had no weight and could float around like a feather.On the moonHe was about one-sixth of his weight on the earth.1 “walking does need a bit of practice no

3、w that gravity has changed?5既然引力改变了，走路也的确需要 练一练了。now that同since相似，语气较弱，强调人们已知的事实。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 let9s start work.2.We watched, amazed as fire broke out on the outside of the spaceship as the earths grav

4、ity increased.break out!JLBJ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 outin 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 lastnight.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

5、门而入;打断7. cheer up; cheer sb. up感到咼兴振奋8. masses of许多，大量9. get the hang of熟悉，掌握，理解 10. exhausting (sth); exhausted (sb)3.But when I tried to step forward I found I was carried twice as far as on the earth and fell ovei*.1). “A + be +倍数+ as +形容词原级+ as +B，This tree is three times as tall as that one. Hi

6、s father is twice as old as he.2). “A + be +倍数+形容词比较级+ than +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 ourschool 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 br

7、oadened 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) 100dollars for the painting?No, I would gladly have paid (两倍那么多了)for it.(paying; twice as much)4.get the hang of sth. fi 了解.的意义我一直想知道这部新的打字机的用法.我不十分了解你的论据的意义.I dont quite 8irrgument.We watched amazed as fire broke out on the outside of the spaceship as the earths gravity in creased.5.amazed是过去分词，此处做状语用；他进来的时候没有人注意到. He came in unnoticed .6,break out （战争，争吵，疾病等）爆发 在深夜，突然有人吵架；A quarrel broke out suddenly at midnight.Homework1 背诵P26最后一段，明天检查.2.完成英语周报35期的单词拼写和短文改错 3作业本B P25 Exll4.名词性从句(1),明天上交