Modern scientific researches have reported to us that_________

成人英语三级

单选题 Modern scientific researches have reported to us that__________．

A．fat people eat less food and are less active
B．fat people eat more food than slim people and are more active
C．fat people eat more food than slim people but are less active
D．thin people run less,but have greater increase in food intake

参考答案：A进入在线模考

细节判断题。答案在第二段和第三段：Several modern studies have shown that fatter people do not eat more on the average than thinner people；Slim people are more active than fat people。因此胖人吃得少，活动少。A为正确答案。

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1根据下面资料，回答题
The more time scientists spend designing computers, the more they wonder at human
brain． Tasks that puzzle the most advanced supercomputer--recognizing a face, reading a handwritten note--are child´ s play． Most important, unlike any ordinary computer, the brain can learn from its mistakes． Researchers have tried for years to program computers to imi-tate the brain´s abilities, but without success． Now a growing number of designers believe they have the answer: if a computer is to work more like a person and less like an over-grown calculator it must be built more like a brain, which distributes information across a vast interconnected web of nerve cells or neurons．
Ordinary computers work by following a chainlike sequence of detailed instructions．
Although very fast, their processors can perform only one task at a time． This approach works best in solving problems that can be broken down into simpler logical pieces． The pro-cessors in a neural-network computer,by contrast,form a network much like the nerve :cells in the brain． Since these artificial (人造的) neurons are interconnected, they can share infor-mation and perform tasks at the same time． This two-dimensional approach works best at rec-ognizing patterns．
Instead of programming a neural-network computer to make decisions,its maker trains it to recognize patterns in any solution to a problem by repeatedly feeding examples to the machine．
Neural networks come in all shapes and sizes． Until now most existed as software simu-lations (模拟品) because redesigning computer chips took a lot of time and money． By exper-imenting with different approaches through software rather than hardware, scientists have been able to avoid costly mistakes．
It can be inferred from the first paragraph that a computer__________．

A．can recognize a face
B．cannot learn from its mistakes
C．cannot follow detailed instructions
D．can read a handwritten note

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2Which of the following is NOT true about an ordinary computer?

A．It must be programmed before it works．
B．It can only solve one problem at a time．
C．It is good at solving problems that can be broken down into simpler logical pieces．
D．It is trained to make decisions．

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3 The main feature of a neural-network computer is that__________．

A．its processors act as an interconnected web of neurons
B．it is programmed to make decisions
C．its networks are of all shapes and sizes
D．its neurons are artificial

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