英语必修5译林牛津版unit 2同步复习第3课时导
学案 《课堂练习》一、单词应用 1. today’s d_________ question is “the economy or the environment—must we choose?” 2. if you have any questions or comments, you can use this time to v_________ them. 3. i’m talking to you today about the way large areas of the world are damaged by i____________ waste. 4. factories produce large amounts of p____________ chemicals. 5. the waste they create goes into the a_____________ and makes us sick. 6. p___________ is so bad that many rivers are full of chemicals. 7. in a___________, many sea cr