【正文】
1. Is he ________ (嚴肅的 )? 2. We can ________ (減少 ) air pollution by riding bicycles. 3. He is ________ (挖洞 ) in the garden. 4. We can ________ (回收利用 ) old things. 5. It is ____ (明智的 ) of you to take a map. serious reduce digging recycle wise 1. 打算、計劃做某事 2. 植更多的樹 3. 在花園里挖溝 be going to do sth. plant more trees dig in the garden 4. 種植水果面包樹 5. 對 …... 有好處 6. 減少空氣污染 7. 嚴重的,嚴肅的 plant breadfruit trees be good for … reduce air pollution be serious 8. 節(jié)約水 /能源 9. 引起嚴重的空氣污染 save water cause serious air pollution Read the text book and learn the new words and phrases by heart. 。 vi. 減少,降低 . We can reduce air pollution by