+Module+3+Journey+to+space+Unit+2+We+have+not+found+life+on+any+other+planets+yet 外研版八年级英语下册.pptx

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1、 none environment that solarsystem solar system pron.没有一人；没有没有一人；没有 一个；一点儿也没有一个；一点儿也没有n.环境环境pron.那，那个那，那个(指代指代 已被提及的事物已被提及的事物)adj.太阳的；与太阳有关的太阳的；与太阳有关的n.系统；体系系统；体系星系；星系；(尤指尤指)太阳系太阳系 group galaxy universelight impossible outcommunicate n.群；组群；组 n.星系星系 n.宇宙宇宙n.光；光线；光亮光；光线；光亮adj.(事情事情)办不到办不到的，不可能的的，不可能的

2、adv.在远方在远方v.联系；交流联系；交流前缀前缀im-+possibleUnit 2 We have not found life on any other planets yet.Module 3 Journey to spaceA.galaxyB.planet C.solar systemD.star E.universe 3.Match the words and expression with the pictures.ABCDEBFree Talk1.Have you ever read the novel The Three Body Problem?Do you like i

3、t?Why or why not?2.Is there any life on other planets?Para.1Para.2Para.3Para.4Para.5b)People have not found life on any other planets.a)What is the solar system and the Galaxy?e)The universe is too large to imagine.d)Scientists have sent spaceships to explore the Galaxy.c)Questions from the scientis

4、ts have no answer yet.Read and MatchTip:Pay attention to the key words.Read and Answer（para.1-2）1.How long has life been on the earth?2.Why do scientists think they cant find life on seven other planets?Scientists think there has been life on the earth for hundreds of millions of years.None of them

5、has the environment of that of the earth.fact or opinion?fact or opinion?Tip:注意学会分辨“事实”和“观点”。1.What does“them”refer to?2.What does“that”refer to?Tip:注意代词them，that均指前文出现过的事物，且位置较近。1.What environment does life on the earth need?2.Have scientists stopped finding life in space when they dont think they

6、will find?Life needs air,water,sunshine and so on.No,they keep looking for.Discuss:Is it a Is it a meaningfulmeaningful thing?thing?作业本（去掉T1）高效练（去掉T6）背诵课文 Para 2&3Unit 2 We have not found life on any other planets yet.Period 2Module 3 Journey to spaceRead and Draw（para.2-3）Can you draw a picture to

7、show the relationship in the universe?你可以试着画出宇宙里的关系图吗？Key words:the earth,seven other planets,the sun,the solar system,the Galaxy,the universethe universethe Galaxy 银河系the solar system太阳系How large is the universe?Read and Answer（para.3）Why is it impossible to imagine the size of the universe?The lig

8、ht of other galaxies has to travel for many years to reach the earth.Light travel for a yearLight year(光年光年)距离单位距离单位9,460,730,472,581kmRead and Check（P21 T3）planetanyhaventhaventRead and underline（Para.4-5）1.What have scientists done?2.Can we answer the questions right now?Lets guess the title!Anyon

9、e out there?Life on the earthThe sun and other stars The stars at night_ Beginning However,we have not found life on any other planets yet.Body Ending Why has no one communicated with us?We do not know the answer yet.Tip:Pay attention to the last sentence of the beginning and ending.关注首末段最后一句话，抓住文章核

10、心。Discussion1.Where can you read this passage?A.Newspaper B.Science magazine C.Story book 2.Do you want to communicate with the aliens?Why or why not?3.Which one is a better ending,why?A.We do not know the answer.B.We do not know the answer yet.Is there life on other planets?There are seven other pl

11、anets in our _,but_ of them has a(n)_ like that of the earth.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 _ with us?It is true that scientists have not discovered life on other planets in the _ yet,

12、but some scientists believe that they will find it some day.solar systemnoneenvironment4.Complete the passage with the words and expression in the municateuniversecommunicate environment none solar system universeHave a try1.好几亿年2.绕转3.当中没有一个4.几个其他行星5.太阳系6.银河系7.在宇宙中8.在太空中9.拍照10.与交流11.在地球上hundreds of

13、millions of yearsgo aroundnone ofseveral other planetssolar system the Galaxy/the Milky Wayin the universecommunicate withtake photosin spaceon the earth作业本高效练（去掉T4）背诵课文 Para 2&3Module3 Unit 2Module3 Unit 2课本知识点整理课本知识点整理 Scientists think that there has been life on the earth for hundreds of millions

14、 of years.科学家们认为地球上的生命已经有上亿年的历史。科学家们认为地球上的生命已经有上亿年的历史。there be 的现在完成时的现在完成时“there have/has been+名词名词”若加时间长短，需用介词若加时间长短，需用介词 for 连接，如连接，如for one year There has been a picture on the wall for a long time.There have been some old trees in our school.墙上墙上有有这一幅这一幅画画已经很久了。已经很久了。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

15、。hundred前加基数词，hundred要用单数形式；一百：one hundred 五百：five hundred hundred与of连用表示“数百”时，hundred要用复数形式，即hundreds of。例如：例如：There are eight hundred students in our school.There are hundreds of people in the park.thousand,million,billion和和hundred的用法相同。的用法相同。We planted _ trees last year.A.hundreds of B.hundred of

16、 C.five hundreds D.five hundred ofPractise With so many stars in the universe,are we alone,or is there life out there in space?宇宙中有宇宙中有这么多星球，我么多星球，我们是孤独的是孤独的吗？抑或？抑或太空中太空中还有其他生命存在呢？有其他生命存在呢？这里这里with so many stars in the universe是介词是介词短语，在句中短语，在句中作状语作状语。类似的例子还有：。类似的例子还有：那个男孩站在那里，手插在口袋里。那个男孩站在那里，手插在口袋里

17、。The boy stood there with his hands in the pockets.With so many things to do,we have no time to play.要做的事情要做的事情这么多，我么多，我们都没都没时间玩了。玩了。_ the computer and the Internet,we can get the information we need at a great speed.A.By B.Have C.With D.Useby+doing sth./by+交通工具交通工具Practise Why do you always sleep _

18、?Because Im afraid of the dark.A.by yourself B.with the door open C.with the window open D.with the light on alone:独自，单独一人（没有感情色彩)lonely:孤单的，孤独的（指情感上的孤独）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。Sometimes,I feel lonely.He lives _,but he never feels_.A.lonely;alone B.lonely;lonely C.alone

19、;lonely D.alone;alonePractise3.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？今天没有人来学校。今天没有人来学校。No one comes to school today.no one=nobody 表示表示“没有人没有人”，只能指人只能指人，作主语时，作主语时，谓语动词为谓语动词为单数单数形式形式。如：。如：no one 只能指人，可用于回答只能指人，可用于回答 Who开头的特殊疑问句开头的特殊疑问句none 可以指人也可指物，常回答可以指人也可指物，常回答 How many/how

20、much开头的特开头的特殊疑问句殊疑问句 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 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“没有没有一个一个”，其后常接，其后常接“of+名词名词/代词代词”，后，后面面动词单复数形式动词单复数形式均可均可。None of us has/have been to Sanya.我们都没去过三亚。我们都没去过三亚。How many of you have read this book?A.Nobody B.SomeoneC.None D.Anybody