You probably know what a mobile is, but the mobile I'm talking about is a delicate object of decoration hanging from the ceiling and moving gently with every breath. It delights both children and adults. Now, do you know who invented the mobile?
大家可能都知道mobile是手机，不过我说的这个mobile是挂在天花板上的精致装饰物——风铃，它会随着气息轻轻移动 。风铃让孩子和大人都很高兴 。你知道风铃是谁发明的吗？
This lovely creation was the work of an American artist named Alexander Calder. Calder became interested in making things when he was a child. And even then he often used wire in his constructions. When he went to college, he studied engineering rather than art. But he quickly realized that art was his real passion. He also loved the circus, and many of his early artworks were small circus figures made with wire. In about 1930, Calder turned from realistic wire figures to abstract ones. He began constructing objects that have circles, squares and other geometric shapes. To get the shapes to move, he used small motors. Then he went one step beyond these early mobiles. He got the shapes in his constructions to move by themselves.
这个可爱的创作是美国艺术家亚历山大·考尔德的作品 。考尔德小时候就对制作东西很感兴趣 。后来他甚至经常在作品中使用金属线 。他大学学的是工程而不是艺术 。不过他很快就意识到，艺术才是他真正喜欢的 。他也喜欢马戏表演，他早期的作品中有很多用金属线做的小型马戏团玩具 。1930年左右，考尔德从现实的金属线作品转向抽象作品 。他开始用圆形、方形和其他几何图形来创造作品 。为了让这些图形移动，他用了小型电机 。然后他向早期风铃的制造迈进 。他让建筑中的图形自己移动 。
A mobile may look simple as it shifts in the wind, but it requires careful construction to work properly. Calder used his engineering knowledge to create his first mobiles. Often these consisted of small pieces of brightly printed metal strung by wire to a thicker base wire. Calder learnt how to find the precise point to connect each wire so that all the pieces will sway in harmony. In doing so, he created an art form for people all over the world to copy and enjoy.
风铃随风摆动，看上去可能很简单，不过只有精心制造才能产生这种效果 。考尔德运用他的工程学知识创造出了首个风铃 。一般来说，风铃由用金属线串起来的小块亮印花金属组成，然后固定在一根较粗的基础导线上 。考尔德学过如何将每根金属线的精密点相连，这样才能使所有金属块和谐地摆动 。这样，他就创造了一种全世界人们都可以模仿和享受的艺术形式 。
Questions 16 to 18 are based on the passage you have just heard.
Question 16. What does the speaker say about a mobile?
Question 17. What do we learn about many of Alexander Calder's early artworks?
Question 18. Where does Alexander Calder's real passion lie?