Unit 4 第5课时 Task and Self-assessment（同步课件）-2023-2024学年九年级英语下册同步精品课堂（牛津译林版）

仓颉之初作书盖依类象形故谓之文其形声相益即谓之字文者物象之本字者言孳乳而浸多也著于竹帛谓之仓颉之初作书盖依类象形故谓之文其形声相益即谓之字文者物象之本字者言孳乳而 Unit 4 Life on Mars Task and Self-assessment Words and Expressions goods electronic entertainment n. [复] 商品，货品 adj. 电子的 n. 娱乐 自学反馈 How much do you know about Mars? 合作交流 Mars 火星是太阳系八大行星之一，火星是距太阳的第四个行星，它的体积在太阳系中居第七位，是类地行星中距离太阳最远的一颗，位于地球和小行星带之间，它外观呈现出火红色，因而非常引人注目。火星有两颗小型天然卫星：火卫一和火卫二。 火星的表面沙砾遍地，十分荒凉沉寂，遍布遭陨星袭击后因撞击形成的坑坑洼洼。 Mars 火星平均气温为零下五十五摄氏度,温差较大：在夏季的昼间，气温最高为二十摄氏度，而在冬季，气温则可低达零下一百多摄氏度。 火星上经常有强风，因而常导致大范围的尘暴。它大气非常稀薄，它的主要成份是二氧化碳，其他成份还有氮、氩、氧等。水在火星大气中的比重只有百分之零点零三。因而火星表面异常干燥。 1、Mars is blue and green . ( ) 2、The surface of Mars looks the most like the surface of Earth. ( ) 3、Scientists believe that there is life on Mars. ( ) 4、Mars has two moons: Phobos and Deimos. ( ) 5、The atmosphere of Mars is 95 per cent oxygen. ( ) 6、The gravity on Mars is about three-eights of the gravity on Earth. ( ) F T F T F T or F T 刺 red is no carbon dioxide 1 Transport: Food, water, air: 3 Gravity: spacecraft, uncomfortable… Plants could grow on Mars, in the form of… three-eighths of that on the Earth, special boots prevent …from floating off… Life on Mars 4 home 5 school Live in houses with huge comfortable rooms… robots do most of their work… online school, e-teachers, computers connected to an interplanetary network… Life on Mars Now use your imagination: What will life be like on Mars in the future? Life on Mars Transport Shopping Entertainment Money 10 T: Look at his flow chart. Then He finds a lot of good ideas for each subject./// Money Stored in the ______________ ￥1 is worth around M＄10 Electronic Planet Mars Bank 11 四Money: Planet Mars Bank /// Entertainment Online games are very popula