9b  Unit 1 Life on Mars  Welcome to the unit 導學案

present a picture of space shuttles (ppt)2. pre-readingt: boys and girls, how much do you know about mars? do you its color, its size and some other information? now let me show you my research on mars. (ppt)1) the color of mars: red ; 2) the size:  about one-half the diameter of earth; 3) location: it’s between earth and jupiter in our solar system. 4) its moons: phobos and deimos 5) surface: the surface of mars is a little like the surface of earth.6)temperature: the lowest temperature will be -133℃(degrees centigrade) and the highest will be  27 ℃（ppt）t: (present more words and expressions)mars is such a planet how will people live there? the first settlers have to wear space suit and hemet to prevent laser light. people can easily float because of the low-gravity. so they wear special boots to make themselves heavier. people can live in domes. it is said that mars will turn into another blue earth in the future. i think people can live more comfortable by then.t: now you have learned something about mars from my research. but is there anything else you want to know about mars? t: please fill in the blanks with the correct words according to the whole sentence and the english explanation in the brackets. (ppt)t: ok. let’s check the answers together. 1) a large body in space that moves around the star, e. g., the sun means planet. 2) a power that keeps us from floating in the air means gravity.3) a vehicle designed for travel in space means spacecraft. 4) people who go to live in a new place mean settlers. 5) grow and improve means develop.6) machines that can do tasks under the control of computer mean robots.7) small round pieces of medicine mean pills. t: now read the new words after me. (2遍)new words: planet   gravity    spacecraft    settlers    develop   robots   pills   t: what is the fastest way to learn more about mars? that’s searching the internet. now look at the keywords. guess their meanings first and then use the search engines to help you. try to find the information about them on the internet. (ppt)1) crowded planet : the population on earth is about 6.4 billion in . it’s still increasing quickly…population here means the number of people.  (ppt)2) space shuttles : they are new kinds of spacecraft which can travel faster in space. (ppt)3) speed boots :  they are special shoes that can make you walk faster in space. (ppt)4) space home : it’s a special round house in space. (ppt)