Module3Unit2Wehavenotfoundlifeonanyotherplanetsyet.pptx

Module 3 Journey to spaceUnit 2 We havent found life on any other planets yet.第1页Change has gone to the Moon.Is she alone?单独单独What do you think of(想到想到)when you see the Moon?Astronauts have already been to the Moon.Have they discovered any life on the Moon?Why?So,People and things cant grow there.The Moon doesnt have an environment with air.环境环境生长生长第2页学习目标学习目标1.熟记重点单词：熟记重点单词：none,environment,solar,system,group,galaxy,universe,light,impossible,out,communicate2.掌握重点短语掌握重点短语:hundreds of millions of solar system,in the universe,far enough,in space,go around the sun,be called,have to,communicate with3.掌握重点句型：掌握重点句型：(现在完成时现在完成时)主语主语+have/has+动词过去分词动词过去分词第3页Fast-reading第4页Read the passage quickly and choose the best title.Anyone out there?Life on the earthThe sun and other starsThe stars at night第5页Careful-reading第6页Read Para.1 and choose the best answer.1.Scientists think that there has been life on Earth for_years.A.thousands of B.millions of C.billions of2.Have we found life on other planets?A.Yes,we have.B.No,not yet.C.No,they havent.第7页galaxyplanetstaruniverse太阳太阳1.2.3.4.5.solar systemRead Para.2第8页Do you know the words and expressions in the box?Put them in order:small large.galaxy planet solar system star universeplanet star solar system galaxy universe第9页Read Para.2,then complete the sentences.1.The Earth is a _ and it goes around the Sun.There are _ other planets around the Sun.2.The Sun is a star.The Sun and its planets are called _.3.There are billions of stars in the Galaxy.The solar system is a small part of _ _ .the solar systemplanetsevenour galaxyor the Milky Way第10页Read Para.3&4,then check the true(T)statements.1.There is more than one galaxy in the universe.2.The light from the stars in other galaxies has travelled for a short time to reach us.3.Spaceships have visited most of the universe.FFT第11页Read Para.5:answer the two questions1.Has anyone discovered life in space?2.Do you know whether there is life in space or not?.No one has discovered any life in space yet.We dont know yet.第12页Scientists think that there has been life on the Earth for hundreds of millions of years.However,we have not found life on any other plants yet.第13页The Earth is a planet and it goes around the sun.第14页Seven other planets also go around the sun.None of them has an environment like that of the earth,so scientists do not think they will find life on them.第15页The sun and its planets are called the solar system,and our solar system is a small part of a much larger group of stars and planets,called the Galaxy or the Milky Way.第16页There are billions of stars in the Galaxy,and our sun is only one of them.第17页Scientists have also discovered many other galaxies in the universe.They are very far away and their light has to travel for many years to reach us.So how large is the universe?It is impossible to imagine.第18页Scientists have sent spaceship to the planet Mars to take photos.They have even sent spaceships to travel outside the solar system.第19页However,no spaceship has travelled far enough to reach other stars in our Galaxy.第20页Complete the passage with the words and expression in the municate environment none solar system universeIs there life on other planets?There are seven other planets in our(1)_,but(2)_ of them has a(n)(3)_ like that of the earth.solar systemnoneenvironment第21页Spaceships from the earth have done surveys of the other planets,but they have not found any life there.Why has no one from other planets tried to(4)_ with us?It is true that scientists have not discovered life on other planets in the(5)_ yet,but some scientists believe that they will find it some municateuniverse 第22页生物生物UFOE.T.supermanDo you believe(相信相信)there are any living creatures in outer space?Do you hope there are any living creatures(生物生物)in outer space?第23页Writing:Weve just heard a message from a spacecraft.Our spacecraft has landed on Mars,andit has discovered people on Mars.These people havent sent us a message because they cant hear us.They havent visited the Earth because they prefer life on Mars.They have made TVs,radios and cars with the other spacecraft from Earth.第24页none,environment，solar,systemgroup,galaxyuniverse,light impossible,outcommunicate本课时主要单词第25页hundreds of millions ofin the universe far enoughin space go around the sun be called have to communicate with本课时主要短语第26页1.However,we have not found life on any other planets yet.2.None of them has an environment like that of the earth.3.Scientists have also discovered many other galaxies in the universe.4.We do not know the answers yet.本课时主要句型第27页Study hard,and explore(探索探索)the mysteries(奥秘奥秘)of the universe when you grow up!第28页Homework1.Complete the composition.2.Finish the exercises in Hudong.第29页