求九年级仁爱英语同步练习册unit1 Topic2 section B答案答:1.weak, chest, Anyway, gas, produce 2.D,C,C,D,D 3.E,A,D,C,B 4.few,strange,how,forests,gardens,rainwater,pollute,popular,must,change.5.(1)air,water,soil,pollution.(2)the government has passed laws to prevent the enironment from being polluted (3)polluted air can cause...