1．Although it was really a difficult task, he decided to try his best to________success.
A．challenge B．host
C．approve D．achieve
答案 D [考查动词词义辨析。challenge挑战；host主持；做东；approve赞成；赞同；achieve达到；取得。句意：尽管这是一项很艰巨的任务，他还是决定要尽量取得成功。]
2．She is already 18 years old, but she________as if she were still a little girl.(2012•山东诸城一高三模拟)
A．believes B．behaves C．directs D．declares
答案 B [考查动词词义辨析。believe相信；behave表现；行动；direct指导；导演；declare宣布；声明。句意：她已经18岁了，但她还是表现得像个小女孩。]
