题目

It had been raining for a week on end before the weather_(逐渐地) improved. (根据汉语提示填空) 答案：【答案】gradually【解析】考查副词。句意：连续下了一个星期的雨，天气才逐渐好转。此处用副词gradually作状语，修饰谓语动词 improved。故填gradually。下列发育方式完全相同的两组昆虫是（　　）①蜜蜂、蝉       ②螳螂、蝗虫       ③蚊子、蟋蟀      ④蚕、蝴蝶．A．①④B．①③C．③④D．②④