初二下外研版Module3Journeytospace》Unit2Wehavenotfoundlifeonanyotherplanetsyet.学案(.docx
-
资源ID:8607690
资源大小:64.66KB
全文页数:3页
- 资源格式: DOCX
下载积分:2元
快捷下载
![游客一键下载](/images/hot.gif)
会员登录下载
微信登录下载
微信扫一扫登录
友情提示
2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。
|
初二下外研版Module3Journeytospace》Unit2Wehavenotfoundlifeonanyotherplanetsyet.学案(.docx
M3Journey to spaceUnit 2 we have not found life on any other planets yet.Pre-reading: revision of u1:Do you remember the latest news in unit1?While-readingScientists think that there has been life on the earth for hundreds of millions of years. However, we have not found life on any other planets yet.The earth is a planet and it goes around the sun. Seven other planets also goaround the sun, None ofthem has an environment like that of the earth, soscientists do not thinkthey will findlife on them. The sun and its planets arecalled 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. There are billions of stars in the Galaxy, and our sun is only one of them.Scientists have also discovered many other galaxies in the universe. They are very far away and their light has to travel many years to reach us. So how large is the universe? It is impossible to imagine.Scientists have sent spaceships to theplanet Mars to take photos. They haveeven sent spaceships to travel outside the solar system. However , no spaceship hastravelledfar enough toreach otherstars in our Galaxy.Scientists have always asked the questions : with so many stars in the universe,are we alone, or is there lifeout there in space? Have there been visitors to theearth fromother planets ?Why has no one communicated with us? W do notknow the answer yet.Read and draw a mind map about the universe?In which paragraph?The main idea and the question about parp.2 : Why isn t any life on the other planets?The main idea and the question about parp.3: Where are the other galaxies?The main idea and the question about parp.4: Where have the scientists sent spaceships to?The main idea of parp.1:The main idea and the question about parp.5: What questions have they asked?What does the last sentence mean?Especially the“” .Get the main idea of the passage,choose the best answer1.Anyone out there ?2.Life on Earth3.The sun and other stars4.The stars at nightReading timePost-reading:retell第 1页附太阳系八大行星名称 :第 2页