Unit 1 Life on Mars
step two while-reading 用時： 分鐘
task one skimming
t: now would you please open your books at page 8 ? read the article quickly and find out the keyword of each paragraph. it can be a word or some words. you don’t have to read it word by word. just skim it. this kind of reading skill is called skimming. (同學(xué)們，請快速地閱讀文章的第一段，幫我找到其中的關(guān)鍵詞。它可能是一個單詞或幾個單詞，閱讀時你沒有必要逐字逐句地讀，要跳讀,這種閱讀技能叫做略讀)。
t: ok, boys and girls. let’s check the answers now : (ppt)
para 1 crowded, polluted (population , pollution)
para 2 transport
para 3 food, water and air
para 4 gravity
para 5 home
para 6 school
para 7 food
task two scanning
t: that’s very easy for you, right. read each paragraph again , this time you should be more careful and pay more attention to the details . while reading the article , please find out the answers to the questions .it’s another kind of reading skill called scanning (請同學(xué)們再仔細(xì)閱讀文章每一段內(nèi)容，這次希望同學(xué)們讀得更加仔細(xì)。在閱讀的的同時，請大家思考這些問題的答案。在閱讀的同時找出文章中細(xì)節(jié)性的內(nèi)容, 這種閱讀技能叫做尋讀。 (2-
t: now ,boys and girls , please look at the screen here, let’s check the answers.（ppt）
※transport （ppt）
1 what vehicle do people use to mars at present? and how long does it take? ( spacecraft . months.)
2 what vehicle may people use to go to mars in the future?
and how long will it take?
(space shuttles. only a very short time.)
※ air ,water ,food （ppt）
3 what will scientists do to solve the problems of food , water and air?
( scientists will develop plants that can grow on mars and produce the food, water and oxygen .)
4 what will food on mars be like?
( maybe the food will be in the form of pills and will not be as tasty as they are today.)
※ gravity （ppt）
5 is gravity on mars a big problem? why?
( yes, it is. because the gravity on mars is three-eighths of the gravity on earth. )
6 what may happen then?
( people may jump high easily and float away into space.)
7 what kind of shoes should people wear?
(people should wear special boots to make themselves heavier.)
※ home （ppt）
8 what kind of house may people live in ?
( a special dome with 10 bedrooms is highly possible .)
9 who will do most of our work?
(robots will do most of our work.)