Asfactsprove,amothersitsinthepassengerseatwhileateenlea...

问题详情：

As facts prove,a mother sits in the passenger seat while a teen learns to drive,which can change the teen's brain the study,researchers came up with a driving simulation（模拟）test that encourages risk-taking behavior in teens.

Twenty-five teens were asked to pass the simulation test in the shortest time the simulation,there are 26 intersections（交叉路口）that teens need to pass intersection provides a choice to stop at a yellow light,which could delay（耽搁）the driver for three seconds,or finish the simulation faster by speeding through the yellow light.

If the drivers didn't crash,they'll finish earlier;if not,there is a six-second delay to their time of completion（完成，结束） study required（要求）teens to go through the simulation on their own as well as under Mum's watch.

The results show that when teens drive alone,they drive past the yellow light 55 percent of the ver,if Mum is present,racing past the yellow light was seen at decreased rate of 45 addition,the study found that driving alone caused changes in the teens' brains,causing an increase of blood flow towards the reward center of the Mums were present,blood flow to the brain's reward center increased when they make safer driving decisions.

Researchers think that parents play an important role in helping their children to make more thoughtful h Helfinstein,a researcher From University of Maryland,who's in the passenger seat,"Basically,they're being influenced by what they expect the wish of the other person to be,"she said.

were the teens asked to do in the driving simulation test?

stop at the yellow light.                          finish the test as quickly as possible.

make as few mistakes as possible.                  go through the intersection safely.

happened to the teens when they were driving alone?

completed the test 6 seconds early.              r brain's reward center became less active.

blood flowed towards their brain's reward center.    were less likely to race past the yellow lights.

the last paragraph,we know that Sarah Helfinstein      .

s further explanation to the study                    new evidence to the study

rs a different opinion on the study               esses her doubts about the result of the study

can we learn from the driving simulation test?

s shouldn't drive alone.                      s learn to drive quickly with Mum.

s are influenced by Mum's driving style.          s drive more safely with Mum in a car.

【回答】

 BCAD

知识点：阅读理解

题型：阅读理解