"What's the name of our neighbour? 1 can't remember right now." Have you ever heard your grandparents ask questions like this? Usually, we think older people's memories become bad because their brains get weak, but a team of scientists at the University of Tubingen in Germany has a different idea.

"The human brain works slower in old age," said lead scientist Michael Ramscar, "but only because they have stored more information over time."

The findings are based on a series of computer simulations(模拟)of learning and memory. Scientists let the computers read a certain amount of words and learn new things each day. When the computer "reads" only so much, its performance on cognitive(认知)tests is similar to that of a young adult. But if the computer learned the experiences we might have over a lifetime, its performance is similar to that of an older adult.

Often it was slower because increased "experience" had caused the computer's database(数据库)to grow, giving it more data to process-which takes time. This is similar to old people. Imagine a person knows two people's birthdays. Another person knows the birthdays of 2,000 people, but can only match the right person to the right birthday nine times out of 10. Can you say the first person has a better memory than the second person?

The basic idea is that "The larger the library you have in your head, the longer it usually takes to find a particular word." Benedict Carey, a science reporter, wrote in an article about the study.

1.Why did the writer use a question at the beginning?

A.To attract readers' attention to the topic.

B.To invite the readers to answer the question.

C.To prove that older people have bad memories.

D.To encourage readers to think of their neighbours.

2.How did the scientists do their research?

A.They interviewed all the old people of their neighbours.

B.They followed the experiences of a group of old people.

C.They asked both young and old people the same questions.

D.They used computers to simulate human learning and memory.

3.According to the research, why do old people forget other people's names easily?

A.Because they have a very poor memory.

B.Because they are too old to remember things.

C.Because their brains become weaker than before.

D.Because they have too much information in their brains.

4.What would be the best title for the story?

A.Is it Better to Be Old or Young B.Human Brain's Processing Ability.

C.Do Old People Have Poor Memories? D.Scientists' New Findings on Brains.

One day, I took my daughter to the local playground. The minute we got there, my daughter ran to the swing(秋千)and asked for a push. When I was helping my daughter, I ______ another girl trying to make her swing go high by herself. Her old grandmother smiled at me, lying on the ______ nearby. Maybe she was too old and had to lie on the chair and watch her granddaughter playing.

I gave my daughter a big push and then walked towards the little girl. I asked gently ______ could do for her. She smiled and said quietly but happily, ______ her big shining eyes, "Could you please give me a push, too?" For the next two hours, I kept pushing the swings and playing with my daughter and the little girl. When we got home, I was very tired. But my heat was flying much ______ than the swings.

One day, two years later, after a long day's work, I was a bit tired, but I needed to ______ my daughter before going home. While I was waiting outside the school gate beside my car, a little girl came over and smiled sweetly at me. She gave me a big hug ______ she got on her school bus. As I watched her running away, I didn't feel ______ anymore.

In life, the love we give to ______ will find its way back to us. It may travel from heart to ______ or it may blossom(开花)in the heart which is planted in. The love we share, the kindness we give, and the happiness we create will always come back to us with a big surprise.

1.A.drove B.noticed C.heard D.caught

2.A.chair B.bed C.table D.ground

3.A.who B.what C.how D.why

4.A.to B.of C.with D.for

5.A.earlier B.deeper C.better D.higher

6.A.end up B.put up C.pick up D.take up

7.A.before B.until C.unless D.after

8.A.warm B.sad C.crazy D.tired

9.A.another B.the others C.others D.other

10.A.head B.heart C.arm D.hand

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