【正文】
rs glass bottles √ √ √ √ 2a Join these sentences with or, and, but or while. ‘’ Keys: 2. but 3. or 4. while 5. while/but 6. while/but 7. or 8. but 3 3. Compound sentences:復(fù)合句 and, but, or, while so 1. Be a greener person to help protect the environment. What have you learned today? Summary 2. Three Rs: reduce, reuse and recycle. ? 1. Studying 。 ? Unit 2 Topic 3 Section A ? 2. Recite 1a after class. ? 課后背誦 1a課文。 ? 3. Review grammar . ? 復(fù)習(xí)語法:并列句。