Unit4Topic2Section课件.ppt

Unit4 Topic2 Section C福建省龙岩一中分校福建省龙岩一中分校 童丽华童丽华Our learning goals today(1a,1b,1c)1.In this class,well learn to use some new words and expressions:solar system,Roman,god,diameter,storm,gravity,weigh,be named after,at a distance of，search for2.Well learn the following sentence patterns:Its diameter is 53%as wide as that of the earth.The gravity on the surface of Mars is about two-fifths as strong as it is on earth.倍数倍数/分数分数+asas It takes sb.to do sth.3.Well talk about Mars and discuss“Is Mars a good place for human beings to live？”4.We will improve our reading and writing abilities.Lets enjoy a short film“The Martian”火星救援火星救援Whats the movie about?Are you interested in exploring Mars?Lets talk about“Is Mars a good place for humans to live?”Lets explore Mars.Free talk and leading indistance from the sun?color?Shape?climate?temperature?oxygen?gravity?Pre-reading:What do you know about Mars?diameter?Mars is the fourth planet from the sun in our solar system.请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测Pre-readingMarsIt is named after Mars,the Roman god of war.Marsthe Roman god of war Pre-reading请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测Mars is much smaller than the earth.Its diameter is 53%of the earths.Pre-reading 请关注图片及所提供的情景进行单词预测请关注图片及所提供的情景进行单词预测200 kilosHow much does he weigh on Mars?He weighs 80 kilosOn Mars.Pre-reading 语境能更好地帮助我们理解新单词的含义语境能更好地帮助我们理解新单词的含义During spring and summer,the strong storms can cover the whole surface of Mars.The gravity on its surface is about 40%as strong as it is on earth.Skimming for the topic sentence and the best title.1.Can you find out the topic sentence?What do you know about Mars?What does it look like?2.Can you add a title a title to the passage?“Mars”中心句一般在开头或结尾中心句一般在开头或结尾;skimming 环节是在掠读中了解文章的中心意思环节是在掠读中了解文章的中心意思.While-readingScanning for the numbers and find out what these numbers stand for?53%228 million2/5-138 -280.13%gravityoxygendiameterdistance from the suntemperatureWhile-reading Scanning scanning 环节是在跳读中寻找某些环节是在跳读中寻找某些特定信息；特定信息；While-reading Detail-reading.write down the information about Mars.Diameter Color Shape Climate Gravity Distance from the sun 53%as wide as that of the earth red and orangea ball during spring and summer:strong storms temperature:between-138and 28about two-fifths as strong as it is on earth about 228 million kilometers Underline the important language points.1.be named after6.Its diameter is 53%as wide as that of the earth.2.go around 3.at the distance of 4.be covered by 5.search for 7.The gravity on the surface of Mars is about two-fifths as strong as it is on earth.Post-reading 倍数倍数/分数分数+as asThe green apple is two-thirds as big as the red one.two thirds,as big as about five times,as tall asThe tallest person in the world is about five times as tall as the shortest person.Post-reading Discuss“What have we learnt about Mars?”and lets draw a mind map.MarsWhat does it look like?Is it a good place to live?Its diameterDistance from the suncolorshapeA good climate?Proper temperature?Enough oxygen?Strong gravity?Post-reading Writing practice:Is Mars a good place to live?1.Its color and shape.2.Its diameter and its distance from the sun.3.Its climate.4.Its temperature.5.Its gravity.6.Its oxygen.BodyBeginningEndingWhat do you know about Mars?Is it a good place for us to live?In my opinion,Mars is(not)a good place for us to live.Post-reading Summary games.Task 1:According to the information about Mars,retell 1a.(4分分)Diameter Color Shape Climate Gravity Distance from the sun 53%as wide as that of the earth red and orangea ball during spring and summer:strong storms temperature:between-138and 28about two-fifths as strong as it is on earth about 228 million kilometers Task 2 Discuss the crazy questions and show your reasons.(4分）分）Does Mars have a good climate for Plants?Is Mars a useful place to dry fruit?Is Mars a comfortable place for heavy people?Task3 Please discuss the following questions?(4分）分）Imagine:What clothes do we wear on Mars?What food and drinks can we have?What transportation do we use?SummaryWe learn:1.Some words:storm,weigh,journey.2.Some phrases:be named after,（分数或倍数）（分数或倍数）as as,at a distance of,search for 3.Some sentences:(1)Its diameter is 53%as wide as that of the earth.(2)The gravity on the surface of Mars is about two-fifths as strong as it is on earth.(3)It takes a spaceship about eight months to reachWe can:1.Talk about something more about Mars.2.Write a passage about Mars.Read 1a.Review the useful expressions and key sentences which we learned today.Finish Section C in your workbook.Write a small passage“Is Mars a good place for humans to live?”Preview 3a and 3b of Section C.Thank you