American and Japanese researchers are developing a smart car that will help drivers avoid accidents by predicting when they are about to make a dangerous move.
The smart car of the future will be able to tell if drivers are going to turn, change lanes, speed up, slow down or pass another car.
If the driver’s intended action could lead to an accident, the car will activate a warning system or override the move.
(46) "By shifting the emphasis of car safety away from design of the vehicle itself and looking more toward the driver’s behavior, the developers believe that they can start to build cars that adapt to suit people’s needs," New Scientist magazine said. Alex Pentland of the Massachusetts Institute of Technology collaborated on the project with Andrew Liu who works for the Japanese carmaker Nissan.
(47) Tests of their smart car using a driving simulator have shown that it is 95 percent accurate in predictin
Not very long ago, a special family system (n. 体系) existed in certain parts of South India. In this system, the actual head of a family unit was the mother’s eldest brother, though the mother also had an important position in the family. In families of this kind, a husband was actually no more than a visitor. He did not live with his wife, but with his own mother, brothers and sisters in another house. He saw his sons and daughters sometimes, but the man who actually fed and cared for them and acted as their father was their uncle-their mother’s brother.
But this system, in which brothers and sisters take the place of the father, no longer exists in South India except in a few villages. Economic (adj. 经济的) changes have had far-reaching effect on family life. Family life began to change when men went out to work in factories and offices instead of working with their mothers, brothers, and sisters on the land. When a man went out to work he had money of his own
A. no families
B. many more families
C. very few families
D. not any families
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