“海绵城市”比喻城市像海绵一样，具有吸收、蓄存、渗透、净化雨水等功能，目前我国正在积极试点海绵城市建设。读海绵城市示意图，完成下列各题。
某运动物体在前一半路程内运动的平均速度为20m/s，后一半路程内运动的平均速度为30m/s，则该物体在整个运动过程中的平均速度为（ ）
根据表格内容，选择正确答案。
(a)This is Mariah Carey. She is a singer. She was born in 1970. Her birthday is March twenty-seventh. She likes singing.
(b)This is Lee Young Ah. She was born in 1971. Her birthday is January thirty-first. She is a great（著名的）movie star. She likes acting.
(c)She is ZhangYining. She's a sports star. She was born in Beijing in 1981. Her birthday is October fifth. She likes singing.
(d)Do you know Bill Gates？He was born in 1955. His birthday is October twenty-eighth. He likes playing golf (高尔夫球).
(e)This is Li Lianjie. He was born in Beijing in 1963. His birthday is April twenty-sixth. He is a great actor. He likes reading.
看拼音，写字词
钱塘江大dī____在雨后的阳光下，lǒng zhào____在一层蒙蒙的bó wù____中。
fèn nù____极了的风婆婆在小树的脸jiá____上留下了bù kě mó miè____的hén jì____。
下面措施中，哪一种对保护生态环境最有利（ ）
