16．请听第四段对话，回答第9至第10两个小题． 9．What's the man's opinion about the life in the future？ A．There will be more pollution． B．There will be less pollution． C．There will be no pollution． 10．What are causing more environment problems according to the woman？ A．People's activities． B．Animals'activities． C．Fewer plants．
3．听第五段材料，回答第5～6小题 5．who are talking on the phone？ A．wangmingand his mother B．wangming′smother and MrLi C．MrLiand a doctor 6．why can't wangming go to school？ A．Because he has a fever B．Because he has a stomachache C．Because he has a bad cold．
