B．The prisoners might be willing to have a try.

　　C．The prisoners might be scared and run away.

　　D．The prisoners have to take Nazi generals back.

　　答案：B　推理判断题。画线句意为“如果他们能够完成任务归来，那么就能赦免他们的罪”，所以这些死刑犯很可能会愿意尝试一下。该题易误选A项和D项。

　　B

　　(2016·江南十校联考)

　　Water Robots Explore the Celtic Sea

　　Scientists in England are using two self­directed water vehicles to explore the animal and plant life of the Celtic Sea. The Celtic Sea is a body of water off the southern coast of Ireland. The area is known for its exceptional sea life. Scientists want to know why sea animals are so attracted to this part of the Atlantic Ocean.

　　One of the research vehicles is powered by batteries. It collects information for the National Oceanography Center in Southampton, England, and the World Wildlife Fund. The vehicle's low energy requirements permit it to stay afloat for up to 30 days. Reports of what it finds in the Celtic Sea are sent by satellite. Stephen Woodward is an engineer who helped design the craft. He says the vehicle has equipment that can detect small organisms called zooplankton and fish. He adds that other sensing devices measure water currents and other features of sea life. The vehicle also creates a two­dimensional(二维图)map of the sea.

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