准）版八年级上Module+3+Journey+to+spaceUnit+2+We+haven’t+found+life+on+other+planets+yet+[1].ppt

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,*,现在完成时的用法（,1,）,定义：用于表示以前的某个时间曾经做过的、发生的事情，这种行为对目前有某种影响。,结构：,have/has+,动词的过去分词,1.They _ _(go)to Shanghai on business.,2.I _ _(make)this model of the space station.,3._it_(arrive)yet?,练一练,Unit 2 We havent found life,on other planets yet.,Warming up,:,学习新单词，了解我们所生存的宇宙空间。通过图片介绍，我们可以更多的了解宇宙知识。,Drilling,:,明确学习任务。通过阅读训练，使得我们能够读懂关于宇宙的科普文章，了解我们所生存的环境。,Assignments:,将课堂上的听说练习落实在笔头上，进一步落实现在完成时的用法。,目标与任务,Words and expressions,P183,Activity 1.,Look at the pictures and think about,things you know about life on other,planets.,universe,宇宙,planet,行星,galaxy,星系,Activity 1Look at the pictures and think about,things you know about life on other,planets.,Solar system,太阳系,star,恒星,moon,月球,Match the words with the pictures,galaxy,planet,solar system,star,universe,太阳,put the words in the box in order:small-large,galaxy planet solar system,星系 行星 太阳系,star universe,恒星 宇宙,-universe,宇宙,planet,行星,-star,恒星,-solar system,太阳系,-galaxy,星系,Listen,then read the passage,Check the true sentences,：,1.The Earth is a star.(),2.The Sun is a star.(),3.There is more than one galaxy.(),4.Our galaxy is part of the Milky Way.,（）,5.The light from stars has taken a long time,to reach us.(),6.Scientists have found lif on other planets.(),7.Theyve received many messages,from space.(),8.Theyve visited most of the universe.(,）,1.on Earth,地球上,2.millions of,几百万,hundred,thousand,million,billion,等前有具体,数字用单数,不表示具体数字或后接,of,时要用复数,如,:,五百万,_,成百上千,hundreds of,3.in space,在太空,4.none of,中没有一个,none of,做主语时,谓语动词既可用单数,也可用复数,.,与不可数名词连用时只能用单数,.,None of us,have/has,been to Hongkong.,None of the money,is,mine.,这些钱都不是我的,.,5.go around,绕着,转,around,是介词,”,环绕”,如,:The earth goes around the sun.,地球绕着太阳转,.,6.The sun and its planets,are called,the solar system.,are called,是由,be,动词,+,过去分词构成的被动语态,”,被叫做,”,“,被称为,”,如The pop group is called S.H.E.,那个演唱组合叫,S.H.E,7.,alone,孤单的,孤独的,lonely,寂寞的,通常指人在心灵上的”寂寞和忧郁”,带强烈 的感情色彩,如：,I was alone,but I didnt feel lonely.,我独自一个人,但是我并不感到寂寞,.,8.,prefer(preferred,preferred),表示”宁愿,更喜欢”,.,如,:,Which would you prefer,tea or coffee?,茶和咖啡,你更喜欢哪一种,?,Read the text,Lets practice.,根据中文意思将下列句子译成,英文。,数百万年来，地球上就有生命了。,我们还没有在其他行星上发现生命。,你读过有关火星的书吗？,宇航员们在火星上发现生命了吗？,There _ _ life on Earth for millions of years.,We_ _ life on other planets.,_ you _ books about Mars?,_ the astronauts _ life _ _?,has been,havent found,Have read,Have discovered on Mars,Students book,P120 .No.3,Homework,