题目

The boy often gets up very early in the morning _________ being late for class． A．in aid of          B．in case of           C．in search of         D．in place of 答案：B全球气候变暖会导致A.世界上许多物种的灭绝速度呈现减速的趋势B.全球平均海平面升高，山地雪线的海拔高度上升C.温带，亚热带地区降水量都持续增加D.南极地区降水量增加，大陆冰川面积扩大