题目

surprising, surprise, surprised 【1】To my ________, the five­-year-­old boy can sing so many English songs.【2】I am ________ at the new look of my hometown.【3】We don't want to ________ our English teacher.【4】The news I am going to tell you is very ________. 答案：【答案】【1】surprise【2】surprised【3】surprise【4】surprising【解析】【1】句意：令我惊讶的是，这个五岁的男孩能唱这么多英文歌。根据“To my…”可知，此处构成“to one's surprise”短语，意为“令某人惊讶的是”，故填surprise。【2】句意：我对家乡的新面貌感到惊讶。分析“I am…at the new look of my hometown.甲、乙两种机械的效率分别是70%和50%，则下列说法中正确的是（ ）A．使用甲机械省力B．使用甲机械省功C．使用甲机械做功快D．乙机械的额外功在总功中占的比例大