最新外研版中学八年级英语下册《Module-3-Journey-to-space-Unit-1》课件-.ppt

1、Module 3Module 3Unit 2We have not found life on any other planets yet.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 t

2、o,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+动词的过去分词动词的过去分词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 universeMatch the words with the pictures.A.galaxyB.planet C.solar systemD.

3、star E.universe ABCDEBSkimming(略读略读)to get general idea1.Anyone out there?2.Life on Earth3.The sun and other stars4.The stars at nightRead the passage and choose the best title for it.Scanning（跳读）（跳读）to get detailed informationCheck()the true sentences.1.The earth is a star.2.The sun is a star.3.The

4、re is more than one galaxy in the universe.4.The light from the stars in other galaxies has travelled for a long time to reach us.5.Scientists have received many messages from space.6.Spaceships have visited most of the universe.Careful reading（精读）（精读）to solve difficult pointsgo around the sun 绕太阳转b

5、e called 被叫作solar system 太阳系have to 不得不communicate with 与交流,与联系far enough 足够远in the universe 在宇宙中 in space 在太空中在太空中 Scientists think that there has been life on the earth for hundreds of millions of years.科学家们认为地球上的生命已经有上科学家们认为地球上的生命已经有上亿年的历史。亿年的历史。there be 的现在完成时的现在完成时“there have/has been+名词名词”Ther

6、e has been a picture on the wall for a long time.There have been some old trees in our school.eg:很长时间以来在墙壁上已经有这幅画了很长时间以来在墙壁上已经有这幅画了在我们学校已经有一些古树了。在我们学校已经有一些古树了。hundred前加前加基数词基数词，表示，表示“一百、一百、二百、三百二百、三百”，hundred要用要用单数形式单数形式；hundred与与of连用表示连用表示“数百数百”时，时，hundred要用复数形要用复数形式，即式，即hundreds of。例如：例如：thousand,

7、million,billion和和hundred的用的用法相同。法相同。There are eight hundred students in our school.There are hundreds of people in the park.We planted _ trees last year.A.hundreds of B.hundred of C.five hundreds D.five hundred ofPractiseWith so many stars in the universe,are we alone,or is there life out there in s

8、pace?宇宙中有这么多星球，我们是孤独的吗？宇宙中有这么多星球，我们是孤独的吗？抑或太空中还有其他生命存在呢？抑或太空中还有其他生命存在呢？要做的事情这么多，我们都没时间玩了。要做的事情这么多，我们都没时间玩了。这里这里with so many stars in the universe是介词短语，在句中是介词短语，在句中作状语作状语。类似的例。类似的例子还有：子还有：With so many things to do,we have no time to play.那个女士站在那里，手插在口袋里。那个女士站在那里，手插在口袋里。Practise Why do you always slee

9、p _?Because Im afraid of the dark.A.by yourself B.with the door open C.with the window open D.with the light on The woman stood there with her hands in the pockets.alone:独自，单独一人（没有独自，单独一人（没有感情色彩感情色彩)lonely:孤单的，孤独的（指情孤单的，孤独的（指情感上的孤独）感上的孤独）她独自一人回家她独自一人回家She went home alone.有时，我会感到孤独。有时，我会感到孤独。Sometime

10、s,I feel lonely.practiceHe lives _,but he never feels_.A.lonely;alone B.lonely;lonely C.alone;lonely D.alone;alone3.Why has no one communicated with us?为什么没有人和我们联系呢？为什么没有人和我们联系呢？We rang several times,but no one answered.我们按了几次铃，但没有人来开门。我们按了几次铃，但没有人来开门。no one表示表示“没有人没有人”，作主语时，作主语时，谓语谓语动词常用单数形式动词常用单数形

11、式。如：。如：none 指指三个或三个以上的人或物中三个或三个以上的人或物中“没没有一个有一个”，其后常接，其后常接“of+名词名词/代词代词”，后面后面动词单复数形式均可动词单复数形式均可。None of us has/have been to Sanya.我们都没去过三亚。我们都没去过三亚。Im hungry.Is there any bread in the fridge?_,but we have cakes.Would you like to have one?A.Some B.Much C.None D.NothingPractisenone,environment，solar,s

12、ystemgroup,galaxyuniverse,light impossible,outcommunicate本课时主要单词本课时主要单词hundreds of millions ofin the universe far enoughin space go around the sun be called have to communicate with本课时主要短语本课时主要短语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.本课时主要句型本课时主要句型HomeworkSearch for more information about universe.Preview the use of present perfect tense.Preview the new words and expressions about space.