Actress Hayden Panettiere recently got into trouble with Japanese fishermen as she tried to stop them from killing dolphins.
The 18-year-old star with some other surfers sailed out to reach the dolphins in order to stop them from being driven into a nearby pool and killed, but the six surfers, from Australia and the United States, were stopped by a fishing boat before they could reach them. The fishermen blocked their way with a boathook (钩篙). It was an ugly, unfriendly and life-threatening struggle before the surfers were forced to return to the beach. It is believed that the dolphins were later taken into a pool and killed.
Panettiere, who is a brave surfer and loyal animal protector, made up her mind to save the dolphins of Japan and said, "It was really frightening. Some of us were hit by the boathook, but in the end all we were really worried about the dolphins. It was so sad. We were so close to them and they were jumping out of the water to see us." Breaking down in tears, she added, "One little baby dolphin stuck his head out and looked at me and the thought that it’s no longer with us is really hard to take."
The surfers left the country to avoid arrest (逮捕) by the Japanese police. Panettiere is now back in Los Angeles.
More than 22,000 dolphins are killed by fishermen in Japan every year. Many Japanese believe dolphins should be treated like fish. They have been hunting dolphins for centuries and see any criticism (批评) of this as an attack on their culture.
小题1:Why did the surfers get into trouble with the fishermen in Japan?
A．They said something that hurt the fishermen.
B．They entered a pool which wasn’t allowed to go into.
C．They attacked Japanese culture.
D．They tried to stop the fishermen from killing the dolphins.小题2:From Paragraph 3, we can learn that Panettiere ________.
A．was really frightened and sad
B．succeeded in saving the dolphins
C．cried when they were hit by the boathook
D．didn’t like the Japanese fishermen小题3:Which of the following would be the best title for this passage?
A．What Happened While Surfing in Japan
B．Hayden Panettiere Cried in the Sea of Japan
C．People Worldwide Are Against Killing Dolphins
D．Protect the Wild Animals
、电势为
；现将环自对称轴剖开，然后将左半部叠放于右半部圆环上，此时圆心O处电场强度大小为
、电势为
。下列说法中正确的是（ ）
，根据对称性及矢量合成法则可得甲图中O点的电场强度为
，方向沿y轴负方向，乙图O点的电场强度
，所以
；因为电势为标量，根据标量的运算法则可得：甲图中O顶的电势为
，乙图中O点的电势为
，所以
，故A、B、C错误；D正确。