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①Some people say they “never forget a face”. But what does that saying mean? Is there really no limit (限制) to the number of faces a person can remember?

②A new study has found that, people on average can remember as many as 5,000 faces. The number comes from a group of researchers at the University of York in England. The research team tested people on how many faces they could remember from their personal lives and in the media. They also tested themto see how many famous faces they recognized.

③The people in the test spent one hour writing down as many names of faces from their personal lives as possible. Some examples may include people they went to school with, people they worked with and family members.

④At first, they found it easy to comeup with many faces. But by the end of the hour, they found they had run out of faces completely.

⑤After that, these people were shown thousands of photographs of famous people. Researchers asked them which ones they recognized. To make sure they knew these people, researchers asked them to recognize two different photos of each famous person. The results showed that they knew between 1, 000 and 10, 000 faces.

⑥How do they explain such a wide range (范围)? Jenkins said some people have a natural ability for remembering faces. “There are differences in how much attention people pay to faces and how well they process the information,” he said.

⑦Jenkins also said ________. Some people may have grown up in more populated (人口多的) places. So, they may have had more social contact in their lives.

⑧In the modern world of big cities, computers, televisions and social media, we meet and

deal with thousands of people, so our facial recognition ability is “clearly important” and the
research is also of great importance for the development of facial recognition technology.
1．The writer used the saying “never forget a face” to ________.

A．introduce some ways to help remember faces

B．introduce a new research about memory

C．lead to the research of remembering faces

D．correct people’s mistakes about memory

2．In the study, the researchers found that ________.

A．we don’t need to remember people’s faces in the future

B．young people could remember more faces than old people

C．people could write down names of faces for more than one hour

D．people’s ability to recognize faces is very different from one another

3．Which of the following can be put ________?

A．it could be because of different social environments

B．it could be because of their education and knowledge

C．people who grew up in the country could do better

D．the result told us we should take part in more activities

4．The best structure of the passage can be ________.

A．	B．
C．	D．