第8题: [单项选择]New ways have been found to prevent the river ______. A. not to be polluted B. against polluting C. from polluting D. from being polluted 参考答案:D 答案解析:prevent sth from being pp 防止……被……；注意用被动，因为“the river being polluted”
第9题: [单项选择]She was once a beautiful model but the years had ______ her features. A. injected B. diverted C. withered D. spotted 参考答案:C 答案解析:wither意为“使调谢，使消亡”，符合题意。inject注射，注入；diver转移，转向，使高兴；spot玷污，弄脏，侦察。句意：她曾经是个漂亮的模特，但岁月已经消蚀了她的外貌。
第10题: [单项选择]Free medical treatment in this country covers sickness of mind as well as ______ sicknesses. A. normal B. regular C. average D. ordinary 参考答案:D 答案解析:[考点] 习惯用法。ordinary可以表示普通的病症。
[译文] 这个国家的免费医疗覆盖从普通的疾病到精神疾病。
