在下列四种情景中，属于光的折射现象是
A．湖水中树木的倒影
B．插入水杯中变弯的筷子
C．平面镜中人形成的像
D．夜晚，我们看到美丽的霓虹灯光
答案：B
A、湖中出现岸上景物的倒影，是平面镜成像现象，由光的反射形成的，不符合题意；
B、碗中的筷子由于光的折射现象，水下部分看起来向上弯折，像是断了，符合题意；
C、平面镜中出现人的像，是平面镜成像，由光的反射形成的，不符合题意．
D、灯光在夜空中看来，沿直线传播，不符合题意；故选B．
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| A small man went to a cinema (电影院), 1 a ticket (票) and went in. 2 after two or three minutes he came 3 , bought a second ticket and went in 4 . After 5 minutes he came out again and bought a  third ticket. Two or three minutes 6 that he cameout. The girl asked him," 7 are you buying all the tickets? Are you 8 friends in the cinema all the time?" "No, I'm not doing that," answered the man, " But a big woman always stops (阻拦) 9 at the door and tears (撕) my ticket." Then the girl sold (出售) 10 ticket. | |||
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