题型:阅读选择 题类:常考题 难易度:困难
北京市2019年九年级下学期英语限时练习测试卷
It took 13 years of international effort to map the human biological blueprint of all the genes (基因) that make us different people. The first rough draft (草图) made in 2000. The last of our 23 chromosomes (染色体) was clearly described in 2006. Ever since then, the age of personal genetic testing has been upon us. Since that time, a growing number of private companies have come on the market mostly through the Internet, offering to scan your personal DNA and compare it to some disease markets of the blueprint, called DTC genetic tests.
But over the last five years the medical world has been discussing excitedly about whether these DTC tests are helpful or harmful, scientifically believable or completely useless. One of the usual criticisms (批评) is that the science is so new that no one really knows yet how to explain the information.
"At present they largely remain in the period of research studies," notes Dr. Greg Ferro, special advisor to the director of genomic medicine at the US National Human Genome Research Institute. Ferro says there are two reasons." The first is that when they offer a test, are they really checking what they should check? And then the next is that even if it is believable, does what the test is checking really mean anything to your health?"
Other worries include the privacy of the results and how your personal genetic information might be used by insurance (保险) companies to refuse your insurance or your boss to dismiss you. Or you could learn information with a huge social or personal impact (冲击), such as finding out that genetically you cannot possibly be the father of your child. It can also give you risks that may break your life, such as whether you are at high risk of cancer, Parkinson or other terrible diseases.
Criticisms over the tests are such that some countries, such as Germany, have banned them. In 2011, some scientists advised the US government that most tests should be done under the guidance of medical professionals (专家). The UK government also expressed its worries about DTC genetic tests and in August 2010 made a set of rules to guide the development of genetic tests.
In 2011, three medical researchers published a review article in the International Journal of Clinical Practice, saying that such tests offered more risks than benefits. The most important reason is that the tests might create worries or unreal results or drive unnecessary medical treatments. They also noted some of the genetic information the tests are based on at present is far from being perfect.
In recent years, there have been many breakthroughs in the AI (人工智能) field. Here, let us see four of the most interesting developments in AI in 2017.
Magic Radio Want a friend that you can talk to anytime? Then you might like Magic Radio from Microsoft. Magic Radio features a cool cartoon figure. You can talk to it about anything. There is also an app for Magic Radio. With it, you can decorate the cartoon figure and even send it a gift online. Parents can also use the app to talk to their children. Magic Radio also records your life and analyzes(分析) your behavior. This way, it is easy for parents to know what you're doing when they're not around. |
Sophia, Robot Sophia is the first robot in the world to get citizenship(公民身份) in Saudi Arabia. In 2015, a US company built Sophia. She looks and acts like a human woman. She can talk to people naturally. She even has her own body language. For example, she may blink her eyes when she is talking about something funny. She also has the ability to learn from people, books and the Internet. Sophia was designed to have her values. "Don't worry, if you're nice to me, I'll be nice to you." |
Samsung's Bixby Like the voice recognition (识别) system, Siri on iPhones, Samsung has a similar system called Bixby. Experts said that it is smarter than any other similar system. If you once asked it to complete a certain task, it will remember that task the next time you talk to it. For example, you might like to listen to certain music while you're baking a cake. Next time when you tell Bixby " I want to make a cake", it will show you how to make a cake and play music for you automatically. |
AlphaGo Zero AlphaGo is an AI program that plays the board game GO(). Google Company has created a new version of the AI program called AlphaGo Zero. The new AI program is unique in the way it learned to play Go. AlphaGo Zero mastered Go in just two days without any human knowledge of the game. On the third day, it beat AlphaGo by 100 games to zero, becoming the best Go player on the planet. |
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