,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,必修三,Unit4,Astronomy,：,the science,of the stars,必修三 Unit4Astronomy：the scienc,Using Language,Using Language,a visit to the moon,Reading 2,a visit to the moonReading 2,spaceship,pull,float,gravity,escape,weight,n.,宇宙飞船,n.&vt.(,拉）力；拖；牵引力,vi.&vt.,（使）浮动或漂浮,n.,漂浮物,n.,万有引力；重力,vi.&vt.,逃脱；逃避,n.,重量；体重,Words preview,spaceshipn.宇宙飞船 Words preview,cheer up,now that,break out,watch out(for),escape doing,感到兴奋；感到高兴,既然,突发；爆发,密切注视；当心；提防,逃避做,cheer up 感到兴奋；感到高兴,spacewalk,Look at the pictures!,spacewalkLook at the pictures,Man-made satellite,Man-made satellite,人教版高中英语必修3-第四单元-using-language-课件,Para1,1.Who do I have a chance to travel to the moon with?,2.How did we travel to the moon?,Li Yanpin,an astronomer,by spaceship,Para11.Who do I have a chance,Read Para.2 and 3;fill in the form.,On the,earth,In space,On the,moon,The,gravity,The,weight,very,strong,disappeared,very,light,very heavy,no weight and could float around like a feather,about one-sixth of his weight on the earth,Read Para.2 and 3;fill in the,Para.4 Returning to the earth,Because fire broke out on the outside of the spaceship as the earths gravity increased.,1.Why was returning to the earth very frightening?,2.How did I feel?,I was very exhausted but very excited too.,Para.4 Returning to the earth,Language points,1 because we are trying to escape the,pull of the earths gravity.,pull n.,拉；拖；扯,He gave a pull on the rope.,他拉了一下绳子。,(,自然）引力,the moons pull on the sea,月球对海洋的引力,Language points1 because we a,2.I,cheered up,immediately and,floated,weightlessly around in our spaceship cabin,watching,the earth become smaller and the moon larger.,cheer up:,使感到振奋,感到高兴,She tried to cheer up the disappointed child when he failed to win the game.,2.I cheered up immediately an,float:,浮动，漂浮,Wood floats on water.,木头漂浮在水上。,A feather floated down on the wind.,一根羽毛随风飘落。,float off(,搁浅的船,),浮起,float:浮动，漂浮,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 as,on the earth and fell over.,1).“A+be+倍数+as+形容词原级+,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。,The Yangtze River is alm,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。,3).“A+be+倍数+the+名词,4.Walking does need a bit of practice,now that,gravity has changed.,now that,既然,Now that I am free,I can enjoy music for a while.,既然有空，我可以享受一下音乐。,now that,同,since,相似，语气较弱，强调人,们已知的事实。,4.Walking does need a bit of,5.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,等词是不及物动词，不能带宾语，不能用于被动语态。,5.We watched,amazed as fi,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。,1)战争爆发,3),(,火灾,),发生,Afirebrokeoutinhishouselast,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,3)(火灾)发生,break away from,脱离政党,;,打破陈规,break through,突围,;,突破,;,冲垮,;,克服,break up,打碎,;,拆散,;,分裂,;,分解,break ones word/promise,食言,;,说话不算数,break away from,Thank You,Thank You,