第四课时 Section B (1a1e) 一、用括号内所给单词的适当形式填空。 1 Dont throw away the plastic bags because they are _(reuse). 2 Its easy _(save) water by turning off the shower. 3 To cut down air pollution, I stopped _(ride) in cars last year. 4 I dont think its hard _(recycle) books and paper. 5 My brother tried _(buy) a house last year. But he failed. reusable to save riding to recycle to buy 二、用方框中所给单词的适当形式填空。 6 We can save paper by not using paper _ 7 Turn off the _ before you leave. 8 More and more people choose
