It was a hot day. The sun scorched (炙烤) down and everywhere you looked, you could see the heat waves blowing above the sand. John rolled over, realizing that half of his body was well and truly burnt. He had not meant to sleep in the sun but the heat and late nights studying for his examinations made him miserable. Stretching, he got to his feet, picked up his surfboard and looked around. The beach, which had earlier been crowded in the sun, was now comparatively empty. Seagulls flew down to clean up the food of people’s picnic lunches.
The ice-cream van had gone, and so were the lifeguards who were doing first aid on the beach. John looked up to where the sun was and estimated it was about five o’clock. Time to head home. It was “Mum’s Kitchen Rule” that had him moving homewards. If he did not get home in time for dinner, he would go hungry. Wandering along the water’s edge, he happened to glance out to sea. What made him look up at that particular moment, he never knew, but it was the right time for the swimmer he spotted. His hand was up, signaling distress (险情) and he was calling out something.
Quickly John glanced around the beach — no one else was close enough to help the man, and crucially, no one had noticed. Cupping his hands to his mouth, he shouted “Help” to get the attention of other people on the beach. Someone waved back to him and John pointed to the swimmer. “Get help,” he shouted. Then without hesitation, he jumped into the sea with his surfboard. John was a strong swimmer and had a good skill for distance swimming. His coach had tried hard to persuade him to go into competitions but he was not interested.
注意：1.续写词数应为150个左右；2.请按如下格式在答题卡的相应位置作答。
Now he was swimming for more than enjoyment or medals.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Fortunately, the sea was not rough and there was no wave.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2 . Engineers at Zhejiang University have created China's first brain-like computer, named Darwin Mouse, which can copy the way a human brain works and solve complex calculations while using a small amount of the energy used by traditional supercomputers.
Though the technology is still in its early stages, experts say it could be used to run large, real-time simulations(模拟) and make new discoveries in chemistry, medicine and neuroscience. It could also be used to revolutionise computer design, leading to more powerful and efficient artificial intelligence.
Pan Gang, a professor at the university's College of Computer Science and Technology, said neuromorphic(神经形态的) computing has been a focus of the international scientific and engineering communities for some time and is considered one of the key methods to overcome the major computing challenges for artificial intelligence. Darwin Mouse represented a "major milestone achievement" in China's brain-like computing technology.
In late 2018, the University of Manchester in the United Kingdom upgraded its neuromorphic supercomputer SpiNNaker to use a million processors, enabling it to perform 2 trillion actions a second. This allowed the machine to run extremely large-scale real-time simulations, such as modelling parts of the brain. Darwin Mouse uses significantly fewer processors thanks to the latest developments in brain-like chips made in China, allowing it to perform far better.
Another advantage is low energy costs. When information is transmitted, only neurons that receive and process the signals are activated, while other neurons stay asleep, similar to how a brain works. As a result, the energy consumption can be reduced to a small part of that of conventional supercomputers.
"We hope to keep evolving the Darwin series neuromorphic computer towards reaching human levels of intelligence, thus achieving more powerful artificial intelligence with significantly less energy use. It is hopeful that brain-like computers will make their way into our daily lives as the hardware and the software for the technology mature," Pan said.
1. Which can be inferred about Darwin Mouse?| A．Brain-like and easy to operate. | B．Powerful and energy-saving. |
| C．Traditional but efficient. | D．Advanced but impractical. |
| A．To show it can run more complex simulations. |
| B．To prove no computers can compare with human brains. |
| C．To stress the importance of brain-like chips. |
| D．To highlight the advantage of Darwin Mouse. |
| A．Positive. | B．Sceptical. | C．Tolerant. | D．Objective. |
| A．Outstanding Engineers of China |
| B．The Brain-Like Computer Makes Its First Appearance in China |
| C．Darwin Mouse, a Famous Mouse |
| D．Artificial Intelligence Has a Bright Future |
