【正文】 _______________________ 17. force _______________________ 18. vehicle _______________________ Ⅱ . The usage of new words 1. Earth is being more and more crowded and polluted. 句中 crowded 是 ___________(詞性 )，意思是 ___________。它的名詞形式是__________。 我不喜歡住在這個城市因為它太擁擠了。 I don’t like living in this city because _________________________. 元旦那天街上有大群的人。 There were large___________ in the streets on New Year’ s Day. 2. Hopefully, we can start again and build a better world on Mars. 句中 hopefully是 _______________(詞性 )，意思是 ________________。它的形容詞形式是 _______________,名詞或動詞形式是 _______________。如： 他希望盡快見到你。 __________________________________. 他對未來充滿希望。 He feels _______________ about the future. 我們有望天黑前到家。 _____________, we will get home before dark. Ⅲ .New phrases (在課文上標出下列短語，朗讀并試著寫上譯文 ) 1. travel at half the speed of light _____________________________ 2. produce the food and oxygen that we need _____________________________ 3. threeeighths of the gravity on Earth _____________________________ 4. float away into space _____________________________ 5. pared with _____________________________ in a dome with ten bedrooms _____________________________ Ⅳ . New sentences (自主閱讀短文一遍，閱讀下面的講解 ) 1. 認真閱讀 P76 77課文的講解 18，幫助你更好地理解課文。 2. The gravity on Mars is only about threeeighths of that on Earth. 火星引 力大約只有地球引力的八分之三。 3. However, in some ways, life on Mars may not be better than life on Earth. 然而，從某些方面來說，火星生活也許不比地球生活好。 ? 注意上面兩個句子中前后比較對象的一致。 Activity Two Free talk amp。 Lead in Step One Free talk Step Two Check the preview 1. 小組內(nèi)講解生詞發(fā)音，帶讀，齊讀，自主記憶、默寫； 2. 小組 展示、競賽、評價。 3. Finish Part B1amp。B2 on Page 10. 4. Answer the following questions: (1) Why do people want to leave our earth? Will it be covered with water? (2) How can we get there? Do you think it’s a good idea to live on Mars? Activity Three Fast reading Step One Read the passage quickly. Try to tell what the passage is talking about? Step Two Try to tell what each paragraph talks about. Paragraph 1 ___________________________________________________________ Paragraph 2 ___________________________________________________________ Paragraph 3 ___________________________________________________________ Paragraph 4 ___________________________________________________________ Paragraph 5 ___________________________________________________________ Paragraph 6 ___________________________________________________________ Paragraph 7 ___________________________________________________________ Step Three Finish Part C1on Page 11 Activity Four Careful reading Step One Read Para24 carefully. Ask and answer questions about each topic. (pair work) 1. What vehicle do people use to go to Mars at present? And how long does it take to go there? What about the vehicles in the future? __________________________________________________________________________ 2. How will scientists solve the problems of food, water and air? What will food on Mars be like? __________________________________________________________________________ 3. Is gravity on Mars a big problem? Why? How to solve this problem? __________________________________________________________________________ Step Two Read Para 56 and tell if the following sentences are true or false. ( ) 1. People on Mars will have more space. ( ) 2. Robots will do all our work, so we’ll have time for our hobbies. ( ) 3. There will probably be more schools on mars. ( ) 4. The students on Mars can study, do their homework and take exams at school. ( ) 5. Each student will have their own online teacher. Step Three Read Paragraph 7 and answer the questions. 1. How do you like the meals on Mars? __________________________________________________________________________ 2. Do you like the journey to Mars? __________________________________________________________________________ Step Four Finish Part C2 on Page 11. Activity Five Summary Step One Finish the following passage as quickly as possible. The earth is being more and more c________ and p_______, so we can build a better world on M_______. Food will be in the form of p ________ on Mars and meals will not be as t________ as they are today. Plants on Mars will produce the food and o________ that we need. People will have more space. We may even live in a d________ with ten bedrooms. Students can study, do their homework and take exams at o________ schools. At present, our s________ are too slow to carry l________ numbers of people to Mars it takes m________. The space shuttles travel fast, but the journey to Mars may be very u________. Step Two Discuss the advantages and disadvantages of living on Mars. Advantages Disadvantages Activity Six Talk Show Do you want to live on Mars? Why (not)? Homework Finish the exercises of Period Two on your workbook. Exercises 從方框中選擇合適的詞，并用其適當(dāng)形式填空。 enjoy easy hope fashion pollute taste 1. These pancakes made by my mother are really _______________. 2. Do you think your life ______________ and successful at the moment? 3. Fresh vegetables and fruits are______________ bought in the market now. 4. I like the style of this dress, and I think it will be ______________ for many years. 5. ______________, they will finish the project by the end of this month. 6. The ____________air harms people’ s health so we should try to reduce the air pollution. ※ Low _________ will be dangerous. ※ Food does not taste _________. ※ People will wear special ________ all the time. ※ Space travel makes people feel _______. ※ It’s too __ ______ to stay outside. ※ It’s too __ __ away from friends on Earth. ※ ?