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.

55．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

56．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% of 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

57．Visual context may work when children get older than________.

A．4                                     B．6                                     C．10                                   D．18

58．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.

D
Antarctica is the southernmost place on Earth, and it is larger than the United Sates and 95% of it is covered with ice. The ice is 5 kilometers thick at places and it never melts. At least that is what we thought, but let us keep it that way for now.
The ice seems to be alive as it works its way towards the seA． It forms an ice shelf over the water. The edge breaks away from the shelf and falls into the seA． From here it drifts. Now big pieces of ice become icebergs that can be 160 km long. They now drift north until they finally melt and become part of the ocean. This process is part of a bigger process which in turn forms a cooling system for Earth. This is so important that no country is allowed to control this areA． The treaty (agreement) signed by 12 countries at first and later joined by more, was to prevent any country harming the planet with irresponsible behavior.
The treaty basically states that:
Antarctica can be used for peaceful purposes only.
No country may build a military base there.
No country may do a nuclear test there.
No country may dump nuclear waste there.
Scientists working there will share their information.
Some other rules are there to protect the penguins and seals.
No dogs may run loose.
No planes may land near large groups of animals.
No guns, explosives, or tractors may be used near the animals.
Most important is that every member can inspect any of the other bases if he suspects that the treaty rules are being broken.
While the treaty is not foolproof（万无一失的）, it does play a very important part in the protection of AntarcticA． The more people realize the effects that pollution has on this continent, the bigger the pressure will be on Governments to change the way they look at pollution.
69．Why was it important to sign a treaty for Antarctica?
A．Because the ice on Antarctica will finally melt into the ocean.
B．Because Antarctica is covered with 5 kilometers thick ice.
C．Because Antarctica balances the temperature of Earth.
D．Because there are many big icebergs in AntarcticA．
70．What is the process of the movement of ice in Antarctica?
A．Ice shelf---sea water---iceberg---ice.
B．Sea water---ice---iceberg---ice shelf.
C．Iceberg---ice shelf---ice---sea water.
D．Ice---ice shelf---iceberg---sea water.
71．What is included in the Antarctica treaty?
A．There is no secret research information in AntarcticA．
B．Dogs are not allowed to be raised in AntarcticA．
C．Waste can’t be thrown away in AntarcticA．
D．People can’t bring their guns to AntarcticA．

Sometimes doing something for yourself - even shopping--can give others a lift. That's the case at charity shops and non-profit stores such as Ten Thousand Villages which helps provide skilled workmen with money in developing countries.
Their handicrafts(手工艺品) are sold throughout North America in 180 stores, 95 of them operated by Ten Thousand Villages.
"People come into the store because we have a lot of interesting things, but then they're drawn to us by the mission(慈善的行动) ," says organization spokeswoman Juanita Fox.
"It just feels good to be making a difference when you're buying something."
In the Alexandria, Virginia shop, generals display windows draw you in. They are filled with practical, attractive home furnishings in blue and white, all international in mood.
Once inside though, it's clear that this isn't just another import store. On the wall behind the cash register is the following note:
"Ten Thousand Villagers provides necessary, fair income to Third World people by marketing their handicrafts and telling their stories in North America. Your Buying Makes a Difference. "
The store was opened in 1994 as part of a network of shops across the USA run by the Mennonite Church, which is based in Akron, Pennsylvania.
Currently, 60,000 skilled workmen from 32 countries provide goods to the stores, with all proceeds (收益) re-invested in the organization.
Management of the Alexandria shop is overseen by an all-volunteer board of directors. More than 40 additional volunteers help doing everything from working the register to unpacking stock.
Maria Yannopoulos got involved after visiting a store and getting to know another volunteer. "Since we are non-profit, we are really looking for value because the more we sell, the more jobs we can create. Giving someone job rather than charity helps in so many ways. "
【小题1】The underlined part "give others a lift" in the first paragraph means ______.

Subways

1.______ is done with the purpose of making money.

2.We can learn from the passage that Shanghai Metro______.

3.How many subways carry more than 5 million people per day?

4.What can be inferred from the passage?

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.
55．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
56．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% of 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
57．Visual context may work when children get older than        .
A．4                           B．6                            C．10                          D．18
58．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.