根据句意及词首字母或汉语提示，补全单词。

1. Don’t forget to send an e-mail to me. The a_________ is happy@sina.com.

2. Animals are our good friends. We should p_________ them.

3. I’m not sure w_________ there are UFOs.

4. —What were the children doing at this time yesterday?

    —They were _________ (给……喂食) animals on the farm.

5. —Lisa, you look much _________(瘦的) than before. Why?

    —I become interested in tennis and I often play it with my friends.

    下图为“某一河流及其河床AB处的剖面图”，某地理兴趣小组成员9月23日正午（地方时）在A 处观测到的太阳仰角为55°30′，且太阳光线与河岸接近垂直。据此回答1—2题。

1、该地地理纬度可能是[ ]

A、55°30'N

B、55°30'S

C、34°30'N

D、34°30'S

2、下列有关该河流的叙述正确的是 [ ]

A、该河段有凌汛现象

B、此时该河流处于汛期

C、该河段水流自西向东

D、该河段水流自东向西