45．Which of the following can be the best title for the passage? A．King Tut’s Tomb B．The ——青夏教育精英家教网—

45．Which of the following can be the best title for the passage? A．King Tut’s Tomb B．The Egyptian Tombs and Treasures C．King Tut’s body D．The First Pharaoh’s Treasures B When it’s 10:15 in New York, it’s 9:15 in Salt Lake City, and 7:15 in San Francisco – isn’t it? This consistent and orderly time system, based on a grid of time zones, seems so natural that people rarely give it a moment’s thought. So you may find it surprising to learn that prior to the late 1800s each community established its own time – by looking at the sun. When the sun shone directly overhead in Washington, D.C., for example, it was 12:00 noon there; up the road in Philadelphia, however, it was 12:07, and in Boston it was 12:24. To measure time with absolute accuracy, it is necessary to move the clock about one minute for every twelve miles of distance; so according to “sun time your pocket watch would be slightly incorrect if you ventured only a few miles down the road. It was not until the advent of widespread railroad travel that a need arose for regularized time. At one point over 300 local times were honored within the country, making it literally impossible for trains to arrive consistently on time everywhere. As a result, in 1883 the continental, United States was divided into four time longitude. The standardization resulting from this system proved so helpful that in 1884 the International Meridian Conference applied the same procedure to establish time zones around the world. Thus, if it is 11:07 p.m. in Tuscaloosa, Alabama, a little simple research will quickly determine that in Kuala Lumpur, Malaysia, it is 9:07 A.M. – and not 9:15. 【查看更多】

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　　Levi Strauss, who was born in 1830 and went to the USA at the age of 17, sat in the saloon and drank his beer slowly．He began to think．Business was not good．Nobody wanted to buy anything．He thought about the canvas and the pots and pans on the wagon．Then he remembered the hole in Hank’s trousers．Suddenly, he had an idea－“pants”, he jumped up and shouted, “Everyone needs pants．” He hurried to a tailor and gave him all his canvas．

　　“I want you to make pants with this canvas,” he said．“Can you do that?”

　　“Yes, of course,” said the tailor, “What name is it?”

　　“Strauss, Levi Strauss．”

　　It was the beginning of jeans．Now more than a hundred years later, people wear jeans all over the world and everyone knows the name of Levi Strauss．In the 1860s, farmers, rail-road workers, cowboys and miners helped to develop the new land．Life was hard．They worked for long hours in all kinds of weather．They wore trousers made by Levi Strauss．They were the first people to wear jeans in America．

　　Jeans first came to Europe with the American soldiers during World War II．Soon, workers in Europe were wearing them．Workers liked them：they were cheap, hardwearing and practical．They were not popular with young people generally until the late 1950s and early 1960s．

　　It came suddenly．It started in America and it crossed the Atlantic quickly．It was a new kind of music, a new kind of dance．Rock’ n Roll．The king of Rock’ n Roll was Elvis Presley．Teenagers loved him．At home he wore a T shirt, an old leather jacket and blue jeans, so more and more teenagers began to wear jeans．They liked them tight．

(1)

All the following statements are True except ________．
[　　]
A．	Jeans could first be seen in Europe during World War II
B．	Jeans were not popular with all the American people until the late 1950s and early 1960s
C．	Many people show interest in jeans
D．	Farmers, railroad workers, cowboys and miners were the first people to wear jeans in America

(2)

Which of the following is the right order in jeans’ spreading? a．More and more teenagers began to wear jeans． b．More than a hundred years later people wear jeans all over the world． c．Farmers, railroad workers, cowboys and miners started to wear jeans． d．Soon, workers in Europe were wearing jeans． e．Not until the late 1950s and early 1960s were jeans popular with young people． f．Levi Strauss had jeans made at 17．
[　　]
A．	f, c, d, b, e, a
B．	c, d, f, e, a, b
C．	a, c, d, e, b, f
D．	f, c, d, e, a, b

(3)

Jeans became popular among the teenagers because ________．
[　　]
A．	they were cheap, hardwearing and practical
B．	they liked them tight
C．	their idol liked wearing them
D．	they just came out like a new kind of music, a new kind of dance．

(4)

The best title for the passage can be ________．
[　　]
A．	Levi Strauss, First Man to Invent Jeans
B．	The Best Trousers－Jeans
C．	How Jeans Comes Out And Spreads
D．	Reasons for Jeans’ Spreading

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A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.

Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease, according to the study.

Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres - a biological marker of ageing found in DNA．As people get older, their telomeres get shorter and they are easy to have illnesses.

But the study found women with high levels of vitamin D had comparatively longer telomeres - a sign of being biologically younger and healthier.

The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.

Lead researcher Dr Brent Richards said: "These results are exciting because they prove for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．

"This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."

He said further studies are required to confirm the findings.

Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process."

Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.

Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.

64．What’s the best title of this passage?

A．Sunshine 'helps to keep you young'

B．Vitamin D has a protective effect on many diseases

C．Telomeres - a biological marker of ageing

D．People have found the secret to having a long life

65．How can people get vitamin D?

A．through water B．through sunshine

C．through food D．both B and C

66．What does the underlined word in paragraph three refer to?

A．It refers to a kind of vitamin that can keep you young.

B．It refers to a biological marker of ageing found in DNA.

C．It refers to a kind of element that can be obtained from sunshine.

D．It refers to a part of the body.

67．Which of the following is not true according to the passage?

A．women with high levels of vitamin D shows a sign of being biologically younger and healthier.

B．vitamin D has a protective effect on many ageing related diseases.

C．too much sunshine may increase our risk of skin cancer.

D．It has been proved that sunshine 'helps to keep you young'.

查看答案和解析>>

A healthy dose of sunshine may be the secret to staying young, British scientists have disclosed.
Vitamin D is produced naturally by the skin in response to sunlight and may help to slow the ageing process and protect against heart disease, according to the study.
Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres - a biological marker of ageing found in DNA．As people get older, their telomeres get shorter and they are easy to have illnesses.
But the study found women with high levels of vitamin D had comparatively longer telomeres - a sign of being biologically younger and healthier.
The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole.
Lead researcher Dr Brent Richards said: "These results are exciting because they prove for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D．
"This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer."
He said further studies are required to confirm the findings.
Professor Tim Spector, head of KCL's twin research unit, and a co-author of the report, added: "Although it might sound absurd(荒谬的), it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process."
Vitamin D made by the action of sunlight on the skin accounts for 90 per cent of the body's supply, but lower levels can also be obtained through food such as fish, eggs and breakfast cereals.
Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease.
【小题1】What’s the best title of this passage?

A．Sunshine helps to keep you young.

B．Vitamin D has a protective effect on many diseases.

C．Telomeres - a biological marker of ageing.

D．People have found the secret to having a long life.

【小题2】How can people get Vitamin D?
A.through water. B. through sunshine.
C.through food. D.both B and C.
【小题3】Which of the following is not true according to the passage?

A．women with high levels of vitamin D shows a sign of being biologically younger and healthier.

B．vitamin D has a protective effect on many ageing related diseases.

C．too much sunshine may increase our risk of skin cancer.

D．It has been proved that sunshine helps to keep you young.