阅读理解。
Can you believe your eyes? A recent experiment suggests that the answer to that question may depend
on your age.
Martin Doherty, a psychologist at the University of Stirling in Scotland, led the team of scientists. In this
experiment, Doherty and his team tested the perception (观察力) of some people, using pictures of some
orange circles. The researchers showed the same pictures to two groups of people. The first group included
151 children aged 4 to 10, and the second group included 24 adults aged 18 to 25.
The first group of pictures showed two circles alone on a white background. One of the circles was larger
than the other, and these people were asked to identify the larger one. Four-year-olds identified the correct
circle 79 percent of the time. Adults identified the correct circle 95 percent of the time.
Next, both groups were shown a picture where the orange circles, again of different sizes, were surrounded
by gray circles. Here's where the trick lies in. In some of the pictures, the smaller orange circle was surrounded
by even smaller gray circles-making the orange circle appear larger than the other orange circle, which was
the real larger one. And the larger orange circle was surrounded by even bigger gray circles-so it appeared to
be smaller than the real smaller orange circle.
When young children aged 4 to 6 looked at these tricky pictures, they weren't fooled-they were still able
to find the bigger circle with roughly the same accuracy as before. Older children and adults, on the other
hand, did not do as well. Older children often identified the smaller circle as the larger one, and adults got it
wrong most of the time.
As children get older, Doherty said, their brains may develop the ability to identify visual context. In other
words, they will begin to process the whole picture at once: the tricky gray circles, as well as the orange
circle in the middle. As a result, they're more likely to fall for this kind of visual trick.
1. Doherty and his team of scientists did an experiment to evaluate _____. [ ]
A. children's and adults' eye-sight
B. people's ability to see accurately
C. children's and adults' brains
D. the influence of people's age
2. When asked to find the larger circle, _____. [ ]
A. children at 6 got it wrong 79% of the time with no gray ones around
B. only adults over 18 got it right 95% 0f the time with gray ones around
C. children at 4 got it right about 79% of the time with gray ones around
D. adults got it right most of the time with gray ones around
3. According to the passage, we can know that _____. [ ]
A. a smaller orange circle appears bigger on a white background
B. an orange circle appears bigger than a gray one of the same size
C. a circle surrounded by other circles looks bigger than its real size
D. a circle surrounded by bigger ones looks smaller than its real size
4. Visual context may work when children get older than _____. [ ]
A. 4
B. 6
C. 10
D. 18
5. Why are younger children not fooled? [ ]
A. Because they are smarter than older children and adults.
B. Because older people are influenced by their experience.
C. Because people's eyes become weaker as they grow older.
D. Because their brain can hardly notice related things together.
N(g)；△H <0。现将M和N的混和气体通入体积为1L的恒温密闭容器