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Is there a way to turn back the aging pr...

Is there a way to turn back the aging process in people? For centuries, people have been looking for a “fountain of youth.” The idea is that if you find a magical fountain, and drink its water, you will not age.

Researchers in New York did not find an actual fountain of youth, but they may have found a way to turn back the aging process. It appears that the answer may be called the hypothalamus, which is part of your brain. It controls important body activities, including growth, the way we process food and so on.

Researchers at New York’s Albert Einstein College of Medicine found that hypothalamus neural stem cells (干细胞) also influence how fast aging takes place.

Dongsheng Cai, a professor at the Albert Einstein College of Medicine, was the leading researcher in a study on aging in mice. He and his team reported their findings.

“Aging speed can be controlled by a particular place in the body, which is the hypothalamus. And it can be controlled by a particular type of cells, which are hypothalamus stem cells.” He adds that when the hypothalamus starts aging, so does the body. So when hypothalamus function is in decline, particularly the loss of hypothalamus stem cells, and this protection against the aging development is lost, it eventually leads to aging.

Using this information, the researchers began trying to activate the hypothalamus in laboratory mice. They did this by injecting the animals with stem cells.

The researchers say the results show that the treatment slowed aging in the animals. “When we injected the hypothalamus stem cells to the middle-aged mice, the mice aged slowly and they can also live longer.”

But these results were just from studying mice in a laboratory. If the mice can live longer, does that mean people could have longer lives? The next step is to see if the anti-aging effects also work in human beings.

“If we can translate what we have seen in animals to humans, I think humans can function better during later ages.” Cai and his team say their studies may have other benefits. They say the findings could lead to new ways to help doctors identify and treat any number of age-related health issues.

1.Why does the author mention the “fountain of youth” in the first paragraph?

A. To explain what the “fountain of youth” is.

B. To introduce the hypothalamus.

C. To show how to find the “fountain of youth”.

D. To help people find the “fountain of youth”.

2.What does the underlined word “it” in Paragraph 2 refer to?

A. The brain.    B. The aging process.

C. Hypothalamus.    D. The stem cell

3.What do we know about the study done by Cai?

A. They have found a way to turn back the aging process.

B. The brain controls growth, reproduction and the way we process food.

C. The decrease of hypothalamus stem cells can lead to aging.

D. The finding has been applied to human beings.

4.Which of the following can be the best title of the passage?

A. The Fountain of Youth

B. A New Discovery about Aging

C. The Ways of Slowing Down Aging

D. Hypothalamus—the Fountain of Youth

 

1.B 2.C 3.C 4.D 【解析】本文介绍Hypothalamus它是青春之泉,它控制着重要的身体活动,包括成长、我们处理食物的方式等等。 1.B 推理判断题。根据第二段第一、二句Researchers in New York did not find an actual fountain of youth, but they may have found a way to turn back the aging process. It appears that the answer may be called the hypothalamus,可知第一段中提到 “fountain of youth.是为了介绍hypothalamus。故选B。 2.C 词义猜测题。根据第二段第二句It appears that the answer may be called the hypothalamus, which is part of your brain.答案似乎是下丘脑,这是你大脑的一部分。可知下句It controls important body activities(它控制着重要的身体活动)中的it指代的就是hypothalamus。故选C。 3.C 推理判断题。根据第五段最后一句So when hypothalamus function is in decline, particularly the loss of hypothalamus stem cells, and this protection against the aging development is lost, it eventually leads to aging.可知下丘脑干细胞的减少会导致衰老。故选C。 4.D 主旨大意题。根据第二段第一、二句It appears that the answer may be called the hypothalamus, which is part of your brain. It controls important body activities, including growth, the way we process food and so on.下丘脑控制着重要的身体活动,包括成长、我们处理食物的方式等等。由此可知D项,Hypothalamus—the Fountain of Youth作为主题最合适。故选D。 【名师点睛】 做词义猜测题时,利用上下文语境、常识和语法关系推断词义。抓住所需推断词汇前后的“mean”或系动词或破折号等直接定义该词的部分。切记不要脱离开语境。本题第3小题,根据第二段第二句It appears that the answer may be called the hypothalamus, which is part of your brain.答案似乎是下丘脑,这是你大脑的一部分。可知下句It controls important body activities(它控制着重要的身体活动)中的it指代的就是hypothalamus。故选C。
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One evening last summer, when I asked my 14-year-old son, Ray, for help with dinner, his response shocked me. “What’s a colander (漏勺)?” he asked.

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I knew that he would rather have been playing in the driveway than learning to mend socks with his mother-he tried to beg not to have sewing lessons, even though I insisted that one day, someone would find the sight of him fixing his own shirt very attractive- but it couldn’t be denied that he was learning, and more than just housekeeping. “I appreciate what you do as a mom,” he told me one day. Ray now understands the finer points of cooking, and more importantly, he realizes there’s nothing good about being helpless.

Now, not only can he make his own dinner, but also he can make a big meal for his family. That’s what I call a man. I’m glad that I prepared so great a present for my future daughter-in-law.

1.Why was the author shocked at her son’s response?

A. Because he was not well behaved.

B. Because he refused to help with dinner.

C. Because he didn’t know the common kitchen tools.

D. Because he was very curious about kitchen tools.

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B. telling kids what is right and wrong

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D. making children live a hard life

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B. did other work in the house

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D. acknowledged his mother’s efforts

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One day the employees of a large company in St Louis, Missouri returned from their lunch break and were greeted with a sign on the front door. The sign said, “Yesterday the person who has been hindering (阻碍) your growth in this company passed away. We invite you to join the funeral in the room that has been prepared in the gym.”

At first everyone was sad to hear that one of their colleagues had died, but after a while they started getting curious about who this person might be.

The excitement grew as the employees arrived at the gym to pay their last respects. Everyone wondered, “Who is this person that was hindering my progress? Well, at least he’s no longer here.”

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Your life does not change when your family changes, when your friends change, when your boss changes, and when your company changes.

Your life changes when you change, when you go beyond your limiting beliefs, when you realize that you are the only one responsible for your life.

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B. our work and life are closely connected with others

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你是王玲,两周前你从网上订购一套书虫系列读物(Bookworm Series)昨天才到货,且包装破损,数量不足。请就此向网店客服写邮件投诉。要点如下:

1.介绍购物情况;

2.反映存在问题;

3.提出解决方案。

注意:1. 词数100左右;

2.可适当增加细节,以使行文连贯;

3.开头结尾已给出,不计入总词数。

To whom it may concern,

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____________________________________________________________________________________________

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____________________________________________________________________________________________

____________________________________________________________________________________________

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Looking forward to your reply.

 

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每句中只有一个错误。每处错误涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:每处错误及其修改均仅限一词。

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