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1、3earth;astronaut;moon;planets;spaceship;.选词配图选词配图Lead in:Talk about the questions.1.Do you know anything about the space?2.Is the earth alone in the space?Unit 1 Has it arrived yet?earthmoonnewsplanetreachyetjustmodeln.地球地球n.月亮，月球月亮，月球n.新闻，消息新闻，消息n.行星行星v.到达；抵达到达；抵达adv.还，尚还，尚刚刚刚刚模型模型PresentationWords
2、 and expressionsspaceshipprojectno problemlatestondiscoverastronaut space travel n.航天器，宇宙飞船航天器，宇宙飞船 项目项目没问题没问题最新的最新的在播放中在播放中v.发现，找到发现，找到 n.宇航员宇航员航天旅行航天旅行Listen and number the words as you hear them.71 earth land message moon news planet reach scientist1253648P18Read the names of the words below.news
3、 about the trip to(1)_ journey of(2)_ monthshas not sent back any(3)_ yethope to find(4)_on Mars Mars eight messageslife2P18Listen again and complete the notes.Listen to the dialogue and circle the right answers.31.Tony has just made a model of the _.A.space station B.spaceship C.rocket2.Some scient
4、ists have sent a spaceship to _.A.the moon B.the sun C.Mars3.The astronauts havent discovered _on Mars.A.water B.life C.scientists4.Has anyone been to Mars yet?A.Yes,someone has.B.No,no one has.C.Yes,someone have.1.Tony has just made a model of the _.A.space station B.spaceship C.rocket2.Some scient
5、ists have sent a spaceship to _.A.the moon B.the sun C.Mars3.The astronauts havent discovered _on Mars.A.water B.life C.scientists4.Has anyone been to Mars yet?A.Yes,someone has.B.No,no one has.C.Yes,someone have.现在完成时 Present perfect定义：表示过去发生或已经完成的某一动作对现在造成的影响或结果。构成：1.肯定句:“have（has）过去分词”。2.否定句：“hav
6、ent（hasnt）过去分词”。3.一般 疑问句：把助动词 have或has提到主语之前。回答用 Yes,have(has)./No,havent(hasnt).注意：该句式中的have或has是助动词，has用于第三人称单数，其他人称一律用have。常连用的时间状语：already,yet,ever,never,just,before,several times 等。Summary1.Revise Words and expressions2.Understand Present perfect earthmoonnewsplanetreachyetjustmodeln.地球地球n.月亮，月
7、球月亮，月球n.新闻，消息新闻，消息n.行星行星v.到达；抵达到达；抵达adv.还，尚还，尚刚刚刚刚模型模型PresentationWords and expressionsspaceshipprojectno problemlatestondiscoverastronaut space travel n.航天器，宇宙飞船航天器，宇宙飞船 项目项目没问题没问题最新的最新的在播放中在播放中v.发现，找到发现，找到 n.宇航员宇航员航天旅行航天旅行Homework1.从课本从课本P18-19 中找出动词的过去分词，并写中找出动词的过去分词，并写出其的原形。如：出其的原形。如：1.visited-visit