For an old person, his brain may perform not so well as before. But a new study suggests that some parts of brain may already decline in young adulthood.
The study, which followed more than 2,000 healthy adults between the ages of 18 and 60, found that certain mental functions — including measures of abstract reasoning, mental speed and puzzle-solving — started to dull as early as age 27. Meanwhile, the decline of memory generally became apparent around age 37.
On the other hand, indicators of a person’s accumulated knowledge — like performance on tests of vocabulary and general knowledge — kept improving with age, according to findings published in the journal Neurobiology of Aging.
The results do not mean that young adults need to start worrying about their memories. Most people's minds function at a high level even in their later years, according to researcher Timothy Salthouse. “According to these patterns, some kinds of flexibility in the brain decline relatively early in adulthood, but throughout adulthood the knowledge pool in one’s command and the effective combination with one’s capabilities may be on the increase without the attack of diseases.” Salthouse said in a news conference.
The study included healthy, educated adults who took standard tests of memory, reasoning and perception at first and at some point over the next seven years.
The tests are designed to detect subtle (细微的) changes in mental function, and involve solving puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbols.
In general, Salthouse and his colleagues found that certain aspects of cognition (认知能力) generally started to decline in the late 20s to 30s.The findings explain normal age-related changes in mental function, which could aid in understanding the process of dementia (痴呆), according to the researchers. “By following individuals over time,” Salthouse said, “we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline.”
The researchers are currently analyzing the study participants’ health and lifestyle to see which factors might influence age-related cognitive changes.
1.According to the text, what is the common view of mental function?
A.It varies from person to person.
B.It weakens in one’s later years.
C.It gradually expands with age.
D.It indicates one’s health condition.
2.What does Timothy Salthouse say about people’s minds in most cases?
A.They tend to decline in people’s later years.
B.Their flexibility determines one’s abilities.
C.They function quite well even in old age.
D.Their functioning is still a puzzle to be solved.
3.Although people’s minds may function less flexibly as they age, what is their strength?
A.They may be better at solving puzzles.
B.They can memorize things with more ease.
C.They may have greater facility in abstract reasoning.
D.They can put what they have learned into more effective use.
4.According to Salthouse, how may their study help us?
A.It will find ways to stop mental functions dulling fast.
B.It will find ways to improve our memories.
C.It will help us understand the complex process of mental functioning.
D.It will help us understand the relation between physical and mental health.
高一英语阅读理解中等难度题
For an old person, his brain may perform not so well as before. But a new study suggests that some parts of brain may already decline in young adulthood.
The study, which followed more than 2,000 healthy adults between the ages of 18 and 60, found that certain mental functions — including measures of abstract reasoning, mental speed and puzzle-solving — started to dull as early as age 27. Meanwhile, the decline of memory generally became apparent around age 37.
On the other hand, indicators of a person’s accumulated knowledge — like performance on tests of vocabulary and general knowledge — kept improving with age, according to findings published in the journal Neurobiology of Aging.
The results do not mean that young adults need to start worrying about their memories. Most people's minds function at a high level even in their later years, according to researcher Timothy Salthouse. “According to these patterns, some kinds of flexibility in the brain decline relatively early in adulthood, but throughout adulthood the knowledge pool in one’s command and the effective combination with one’s capabilities may be on the increase without the attack of diseases.” Salthouse said in a news conference.
The study included healthy, educated adults who took standard tests of memory, reasoning and perception at first and at some point over the next seven years.
The tests are designed to detect subtle (细微的) changes in mental function, and involve solving puzzles, recalling words and details from stories, and identifying patterns in collections of letters and symbols.
In general, Salthouse and his colleagues found that certain aspects of cognition (认知能力) generally started to decline in the late 20s to 30s.The findings explain normal age-related changes in mental function, which could aid in understanding the process of dementia (痴呆), according to the researchers. “By following individuals over time,” Salthouse said, “we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline.”
The researchers are currently analyzing the study participants’ health and lifestyle to see which factors might influence age-related cognitive changes.
1.According to the text, what is the common view of mental function?
A.It varies from person to person.
B.It weakens in one’s later years.
C.It gradually expands with age.
D.It indicates one’s health condition.
2.What does Timothy Salthouse say about people’s minds in most cases?
A.They tend to decline in people’s later years.
B.Their flexibility determines one’s abilities.
C.They function quite well even in old age.
D.Their functioning is still a puzzle to be solved.
3.Although people’s minds may function less flexibly as they age, what is their strength?
A.They may be better at solving puzzles.
B.They can memorize things with more ease.
C.They may have greater facility in abstract reasoning.
D.They can put what they have learned into more effective use.
4.According to Salthouse, how may their study help us?
A.It will find ways to stop mental functions dulling fast.
B.It will find ways to improve our memories.
C.It will help us understand the complex process of mental functioning.
D.It will help us understand the relation between physical and mental health.
高一英语阅读理解中等难度题查看答案及解析
Last week the manager of an old jeweler’s shop received a letter marked “personal”, so of course his secretary gave it to him unopened. As he was very busy, the letter lay on his desk till tea-time. Then he opened it and a ￡10 note fell out onto his desk. With the note was a short letter. This is what it said:
Dear Sir,
In 1935 I got engaged. But unfortunately at that time there was a lot of unemployment and I lost my job. I was six months without a job and then I got work again. But of course was very short of money. I came to your shop to buy a wedding ring. The assistant brought some rings for me to look at, but she was called away for a moment, and I put one of the rings in my pocket. When she came back, I said I did not know the size of my girl-friend’s finger. So I left the shop without buying a ring.
My wife died a short while ago and the fact that I never paid for her ring has been on my conscience (良心) all these years. At the time the ring cost ￡2 so I reckon (估计) that is about ￡10 at today’s price. And I am sending you that amount.
Yours truly,
A customer
“Well, well, well,” said the manager, “life is full of surprises!”
1.Why didn’t the secretary open the letter? Because _______.
A. he was very busy
B. it was a personal letter
C. there was a ￡10 note in it
D. the letter was unimportant
2. What was true about the assistant?
A. She lost her job.
B. She was short of money.
C. She was called away while serving the customer.
D. She put one of the rings in her pocket.
3. What happened to the writer of the letter in 1935?
A. He married a girl.
B. He was out of work for six months and short of money.
C. He lost a ring.
D. His parents died.
4.The best headline for this article would be _______.
A. A Customer Pays His Bill B. An Old Jeweler’s Shop
C. The Manager and the Letter D. A Letter with ￡2
高一英语阅读理解简单题查看答案及解析
you feel so terrible now, you may as well see the doctor quickly.
A. As long as B. For C. Now that D. So that
高一英语单项填空中等难度题查看答案及解析
________ you feel so terrible now, you may as well see the doctor quickly.
A. As long as B. For C. Now that D. So that
高一英语单项填空简单题查看答案及解析
__________ you trust him, you may as well follow his advice.
A. So that B. Now that C. Even if D. Except that
高一英语单项填空简单题查看答案及解析
__________ you trust him, you may as well follow his advice.
A. So that B. Now that C. Even if D. Except that
高一英语单项填空中等难度题查看答案及解析
The famous musician, as well as his students, to perform at the opening ceremony of the 2012 Taipei Flower Expo.
A. were invited B. was invited C. have been invited D. has been invited
高一英语单项填空中等难度题查看答案及解析
.
Not ____ he died, he received an award for his selfless service to the old.
| A．long before | B．before long | C．long ago | D．shortly before |
高一英语单项填空简单题查看答案及解析
Choosing a mobile phone for personal use is not an easy task because
technology ________ so fast.
| A．has changed | B．would change | C．changed | D．is changing |
高一英语单项填空中等难度题查看答案及解析
One young person, who was well educated, went for a job as a manager in a big company. The president did the final ___.
He discovered the youth was ____ and felt satisfied. Then the president asked who paid for his school fees. The youth answered, “My mother did it. She worked as a clothes ____.”
The president requested the youth to ____ his hands. So the youth did. They were smooth. Then he asked, “Have you ever ____ your mother wash the clothes before?” The youth answered, “Never, my mother always wanted me to ____.”
“Go and clean your mother’s ___ when you go back today, and then ____ me tomorrow morning,” the president said _____.
The youth felt his chance of getting the job was high, so when he went back, he ____ requested his mother to let him clean her hands. However, his tears fell ____ he cleaned his mother’s hands slowly. It was the first time he had ____ that his mother’s hands were so wrinkled (布满皱纹的). After that, the youth didn’t say a word and washed all the remaining clothes for his mother ___. That night, Mother and Son ____ for a very long time, longer than any talk before.
The next ____, the youth went to the president’s office. The president noticed the tears in the youth’s eyes and asked: “Please tell me how you _____ about helping your mother.” The youth said, “Number One, I know now what _____ is. Without my mother, I wouldn’t be successful today. Number Two, by helping my mother, I realize how _____ it is to get something done. Number Three, I’ve come to realize the _____ of family relationship.”
The president said, “You are ____. This is what I’m looking for to be my manager.”
1.A. election B. test C. interview D. competition
2.A. strong B. excellent C. humorous D. cute
3.A. maker B. cleaner C. mender D. seller
4.A. wash B. hide C. show D. dry
5.A. found B. let C. helped D. watched
6.A. study B. ignore C. work D. rest
7.A. clothes B. hands C. feet D. shoes
8.A. see B. move C. recognize D. answer
9.A. on purpose B. in patience C. by chance D. at last
10.A. carefully B. nervously C. happily D. shyly
11.A. after B. until C. because D. as
12.A. believed B. sensed C. noticed D. expected
13.A. quietly B. sadly C. excitedly D. angrily
14.A. thought B. slept C. sat D. talked
15.A. morning B. noon C. afternoon D. evening
16.A. worried B. felt C. brought D. spoke
17.A. courage B. appreciation C. success D. family
18.A. important B. difficult C. different D. impossible
19.A. value B. secret C. type D. change
20.A. educated B. respected C. trusted D. hired
高一英语完形填空中等难度题查看答案及解析