河北省邢台市育才中学人教版高中英语必修三 UNIT4 ASTRONOMY THE SCIENCE OF THE STARS READING2 （共22张PPT） 课件 .ppt

1、spacewalkLook at the pictures!Write down the three ways in which gravity changed for Li Yanping.Reading I-scanning&skimming(2m)The way gravity changedLeft the earthIn spaceOn the moon 3.It became very light.1.The gravity became very strong.2.The gravity disappeared.His weights changed three times to

2、o.Now write them down.The weight changedLeft the earthIn spaceOn the moonHe became very heavy.He had no weight and could float around like a feather.He was about one-sixth of his weight on the earth.1.“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。now that同si

3、nce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 lets start work2.We watched,amazed as fire broke out on the outside of the spaceship as the earths gravity increased.break out它与happen,take place,come out等词的用法一样，是不及物动

4、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 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7.cheer up;cheer sb.up 感到高兴振奋8.masses of 许多，大量9.get the hang of 熟悉

5、,掌握,理解10.exhausting(sth);exhausted(sb)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”3.But when I tried to step forward I found I was carried twice as far ason the earth and fell over.The Yangtze River is almost twic

6、e 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 dollar

7、s 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.查看某物运作了解.的意义我一直想知道这部新的打字机的用法.Ive been trying to _ this new typewriter.我不十分了解你的论据的意义.I dont quite _ your argument.get the hang ofget the hang ofWe watched amazed as fire broke out on the outside of the spaceship as the earths gravity increased.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 _.6.break out (战争,争吵,疾病等)爆发在深夜,突然有人吵架._ suddenly at midnight.A quarrel broke outunnoticedHomework 1.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 ExII4.名词性从句(1),明天上交