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2. pla n. 行星 earth n. 地球 . The earth is a pla of the sun. 地球是太陽的一顆行星。 Air pollution is a great problem now. 現(xiàn)在空氣污染是個大問題。 part n. 參加;參與;部分 1. What will the future be like in the book? 2d Read the conversation and answer the questions. Cities will be more crowed and polluted. There will be fewer trees and environment will be in great danger. 2. What can people do? We can use less water and plant more trees. Everyone should play a part in saving the earth. What are you reading, Jill? … It’s a book about the future. … Roleplay the conversation. 將來 100年后的生活會是什么樣的?請你寫出六個預(yù)言。學(xué)科網(wǎng) What do you want to be when you grow up? I want to be a scientist. I’m going to study science hard. I will go to Science and Technology College. I’m interested in robots. I’ll invent many robots. How are going to do that? 學(xué)科網(wǎng) Robots? Sounds interesting. Will people have robots in their home in 50 years? Yes, they will. No, they won’t. They will study at home. Will kids go to school then? And books will not be on pap