and can also sense chemical and biological weapons.

　　Some people may become concerned about their privacy, especially in connection with the video recordings. Some people may worry that such recordings will appear on the Internet. Eugene Volokh, a law professor at the University of California, says the machines have to be used in the right way and it will be interesting to see how state laws deal with this kind of video.

　　William Santana Li says there is a long waiting list for the robots in the US. Workers in the company are working overtime to meet the demands of the market. At least 25 other countries are also interested in these robotic security guards.

25．What can this new tool do for humans?

　　A．Make strategic decisions. B．Keep watching day and night.

　　C．Carry heavy weapons. D．Stop crime autonomously.

26．Why are people worried?

　　A．Their privacy may be let out. B．The robots are very expensive.

　　C．Robots will replace humans. D．They will be out of work soon.

27．Which of the following can be the best title of the text?

　　A．Robots Are Becoming More Popular B．Robots Contribute a Lot to the World

　　C．Robots Are in Great Demand Now D．Security Robots Could Help Cut Crime

　　I don't think I can recall a time when I wasn't aware of the beauty of the ocean. Growing up in Australia, I had the good fortune of having the sea at my side. The first time I went to Halfmoon Bay, I suddenly had the feeling of not being able to feel the ground with my feet anymore.

　　For my 10th birthday, my sister and I were taken out to the Great Barrier Reef. There were fish in different colors, caves and layers of coral. They made such an impression on me. When I learned that only 1 percent of Australia's Coral Sea was protected, I was shocked. Australian marine (海洋的) life is particularly important because the reefs have more marine species than any other country on earth. But sadly, only 45% of the world's reefs are considered healthy.

This statistic is depressing, so it's important for us to do everything to protect them. The hope that the Coral Sea remains a complete ecosystem has led me to take action. I've become involved with the Protect Our Coral Sea