竹，是上苍赏赐南山的肺，吐纳氧气，滋生水汽，_________。

①泻进山脚下的洼地

②凝结在叶尖化为晶莹的露珠

③汇成一泓清莹的静湖

④跌落岩缝汇聚成“丁冬”作响的山泉

该图所示，两条河流下游各有一个沙洲，最终沙洲可能连接的河岸是(　　)

下列图形中，∠1与∠2是同位角的是（　　）

如图所示，在条形磁铁的外面套着一个闭合弹簧线圈，若把线圈四周向外拉，使线圈包围的面积变大，则线圈中感应电流的情况是（   ）

    Computers are popular (受欢迎的) now. 1 can do many things on the computer. It is 2 for us to learn to use it. But some children 3 much time on computer games. That's 4 

    I have got a computer at home and I 5 it  with my parents. I often do my homework on it and when I'm 6 I listen to music on it. My 7 usually use the computer at weekends. What do they do 8 the computer? My father sees movies. My mother does 9 things. She does some shopping and talks with my grandparents on the Internet.

    Have you got 10  computer in your home?