C Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age. The largest study of the effects o 题目和参考答案——青夏教育精英家教网—

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Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.

The largest study of the effects of ageing on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.

“We have found that the power of the male heart falls by 20-25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.

“Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink. “This is part of the ageing process.”

What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s.

“This gender difference might just explain why women live longer than men,” said Goldspink. They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease. “The team has yet to find why ageing takes a greater loss on the male heart,” said Goldspink.

The good news is that men can improve the health of their heart with regular exercise. Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.

69. The underlined word “longevity” in the second paragraph probably refers to “________”.

A. health B. long life C. ageing D. effect

70. The text mainly talks about ________.

A. men’s heart cells B. women’s ageing process

C. the gender difference D. hearts and long life

71. According to the text, the UK scientists have known that ________.

A. women have more cells than men when they are born

B. women can replace the cells that enable the heart to beat

C. the female heart loses few of the cells with age

D. women never lose their pumping power with age

72. If you want to live longer, you should ________.

A. enable your heart to beat much faster

B. find out the reason for ageing

C. exercise regularly to keep your heart healthy

D. prevent your cells from being lost

69---72 BDCC

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Has anyone noticed how, with the passage of time, one’s relationship with one’s grown-up daughters and sons becomes changed? I’ve been aware of this for some time but I’m not quite sure how to deal with it.

Take the kitchen sink for example.

Following a family get-together at my place, I walked into the kitchen to find Kate, my daughter carefully cleaning the sink.

“Don’t do that; what are you doing that for?” I said, unhappy about the hidden criticism.

“Mum,” she said, “you really ought to put your glasses on when you clean the sink. Behind the tap here was black!”

But it’s not just things like kitchen sinks. Another time Kate arrived to pick me up to lunch. She looked at me and then asked, “Mum, why do you use brown eyebrow pencil when your hair is grey?”

A sudden memory of her, aged 14, going to her first mixed party flooded back. She had come in to say goodbye. For a moment I thought she’d been an accident. Both eyes were black. I remember suggesting that perhaps a little less eye make-up might be more effective.

Now I told her, “My hair used to be brown.”

“It looks absurd.”

“Mrs. Menzies had dark eyebrows with grey hair.”

“Yes, but you’re not Mrs. Menzies, are you?” she said triumphantly, as if that proved her point.

But a recent event made me realize that something really must be done.

She had returned some for a few weeks before getting married. One evening I went out on a dinner date. By the time my companion left me at the front door, it was about 2am. As I stepped in, an angry figure in a white nightgown stopped me.

“Well, what time of night is this to be coming home?” she shouted. “Where have you been? I’ve been worried sick!”

Shades of the past come back to disturb me. But what should I do about all this? Nothing, probably. Maybe, after all, it’s only a stage young people are going through.

The daughter thought her mother didn’t clean the kitchen sink well because of her .

A．laziness B．carelessness C．unhappiness D．poor-quality glasses

From the passage we know the daughter .

A．didn’t want to help with the sink

B．didn’t like brown eyebrow pencils

C．had an accident when she went to her first party

D．shouted at her mum because she came home late

How does the mother feel after all these have happened?

A．Shocked. B．Proud. C．Envious. D．Confused.

The author writes the stories to prove that .

A．their relationship became stronger

B．their roles changed as time passed

C．her daughter very much cared about her

D．her daughter got upset as she grew up

A little under one-third of U.S. families have no Internet access and do not plan to get it, with most of the holdouts seeing little use for it in their lives, according to a survey released on Friday.

Park Associates, a Dallas-based technology market research firm, said 29 percent of U.S. families, or 31 million homes, do not have Internet access and do not intend to subscribe（预订）to an Internet service over the next 12 months. The second annual National Technology Scan conducted by Park found that the main reason why potential customers say they do not subscribe to the Internet is because of the low value to their daily lives rather than concerns over cost.

Forty-four percent of these families say they are not interested in anything on the Internet, versus just 22 percent who say they cannot afford a computer or the cost of Internet service, the survey showed. The answer “I’m not sure how to use the Internet” came from 17 percent of participants who do not subscribe. The response “I do all my e-commerce shopping and YouTube-watching at work” was cited by 14 percent of Internet-access users. Three percent said the Internet doesn’t reach their homes.

The study found U.S. broadband adoption grew to 52 percent over 2006, up from 42 percent in 2005. Roughly half of new subscribers converted（转变）from slower-speed, dial-up Internet access while the other half of families had no prior access.

“The industry continues to chip（击破）away at the core of non-subscribers, but has a long way to go,” said John Barrett, director of research at Parks Associates. “Entertainment applications will be the key. If anything will pull in the holdouts, it’s going to be applications that make the Internet more similar to pay-TV,” he predicted.

41. What does the underlined word “holdouts” in the first paragraph most probably mean?

A. some American families

B. those who hold out one’s opinions

C. those who have been surveyed

D. those who still haven’t access to the Internet currently

42. Many potential customers refuse to subscribe to the Internet mainly because _________.

A. they show too much concern about the cost B. they can find little value of it

C. they do most YouTube-watching at work D. the Internet doesn’t reach their homes

43. From the passage we can infer that ________.

A. It is not an easy job to transform those holdouts into the Internet users

B. people will adopt dial-up Internet access no more

C. many Americans enjoy doing e-commerce shopping at home

D. more than half of the population are using the Internet in 2005

44. According to John Barrett, what is the key to attracting more U.S. families to broadband service?

A. making the Internet look more similar to TV set

B. applying the Internet more to entertainment

C. providing more pay-TV programs

D. chipping away at the core of non-subscribers

45. Which is the best title for the passage?

A. Web develops with technology B. The present situation of web

C. Many Americans see little point to web D. It is urgent to promote web service

One dark stormy night, an elderly couple hurried into a hotel and asked whether they could be put up for the night. “I’ m very   31   ,” the clerk(职员) on night shift（值晚班） said politely, “we are all    32 tonight. But you could stay in my room if you don’t    33 . As I’m on duty, I’ll be staying up in the office anyway,” The young man gave the    34 _ advice.
The elderly couple    35  his offer with gratitude(感激). They    36  for the inconvenience(不便) they had caused him. The next day, the rain stopped and it cleared up. When the old gentleman went to pay his   37 , the clerk behind the counter was that same helpful young man. “The room you and your wife stayed in is not a proper guest room in this hotel, 38  you don’t need to pay,” said the clerk, with the same friendly smile.
The old gentleman nodded in    39 , “You are an employee that every boss in the hotel business would    40 . Perhaps   41  I’ll build a hotel for you. ” The clerk was surprised but, deciding that the guest must have been joking, he gave the words no more    42 .
Two years later, the young man received a registered letter(挂号信) from the old gentleman, in which he   43 the experience of that dark stormy night. The letter also enclosed（附上） a formal    44  and a round-trip air ticket to New York, asking the young man to pay a visit.
At a street comer in Manhattan, the young man met his   45 guest. The old gentleman, pointing to a beautiful new    46  towering over(耸立) the crossroads, said, “Look, that is the hotel I    47 to build for you. I hope you will manage it for me. Remember what I said then? Well, I was serious about it.”
“But…will there be any conditions, sir? Why do you choose me? And who are you?”
“My name is William Aster. There’s not any condition.   48  I told you before, you are the best employee…!”
This building was    49 the Waldorf-Astoria Hotel. Starting business in 1931, this hotel has been a symbol of honor in the city of New York. The young man who became its first    50  was George Boldt, the man who turned Waldorf into one of the best hotels in the world.

Lost a German Dog
Address: Stoneywood Circle, Mableton, GA, 30126
Please help up find our missing boy. He escaped through the backyard fence this morning. Weighing pounds, he is black and wearing a blue collar. He was last seen beside the Cooper Lake. If anyone finds it, please call us. Thanks.
Meghan: 678-458-2045
Dave: 678-350-6959
Found an Orange Cat
Address: Marietta, GA
I found an orange cat with medium—length hair in the Indian Hills neighborhood. He is an adult cat, and may even be an elderly cat. He is extremely thin, and has probably been missing from his home for a while. His legs, which give him a little bit of trouble, have some old mjuris. Call me and he prepared to answer questions to de termine if this is truly your cat.
Dog Found
Address: Tujunga, CA
The dog has been wandering the streets of Tujunga. She is very sweet. Please let me know if you are looking for this wonderful girl. Be prepared to answer questions.
Julia: 834-600-2316
Lost Camera
Address: Uvalde, Tx, 78801
I lost my camera yesterday. I believe it was left in a car at about 2:30 p.m. on my way to the St. Louis Airport or at the Airport. I would love the camera back. It has every picture that I have taken since Jan. 1, 2009. It is a Kodak EasyShare Z612 camera in a black case. Please contact me if you have found it.
Cindy: 689-346-2389
1．The purpose of the text is to____________.
A．tell people to be careful with their things
B．show how many things are lost or found
C．help people find the things they have lost
D．list the information about the lost things
2．All the four pieces of information include___________ .
A．the exact and detailed addresses of the four people
B．the places where the things were lost or found
C．the colors and sizes of the lost or found things
D．the ways in which the things were lost or found
3．If you find a black dog with a blue collar beside the Cooper Lake, you may call__________.
A．Meghan at 718-322-5809 B．Julia at 834-600-2316
C．Cindy at 678-458-2045 D．Dave at 678-350-6959
4．Why do John and Julia ask callers to answer questions?
A．To make sure whether they are the real owners.
B．To test whether they can raise the animals well.
C．To write an essay with the detailed information.
D．To make an appointment with the real owners.

On August 5 at 10:31 p.m. PST, a rover（探测器）named Curiosity touched down safely on the surface of Mars, and I was lucky enough to have a front-row seat.
My name is Clara, and when I was in Grade 6, I won the essay contest NASA held to name its next Mars rover. The essay I wrote was not even 250 words long, but somehow it was enough to change my life.
I still remember that cold December day, sitting in a science class. I’d finished a worksheet early and decided to get a Time for Kids magazine off Mrs. Estevez’s bookshelf. It was the 2008 Invention Issue, but that wasn’t the only thing that caught my eye. In the magazine, there was an article about a girl who named the Mars Exploration Rovers, Spirit and Opportunity. The article also talked about the essay contest NASA was holding to name its next Mars rover. Before I even knew anything else about it, a single word flooded my 11-year-old mind: Curiosity.
I couldn’t wait for the bell to ring so I could get started on my essay. That afternoon, I raced home from the bus stop, sat down at the computer and typed until my fingers ached. It turned out that I was just in time. A few days later, and the contest would have closed.
Five months later, shortly after I had turned 12, I was watching a National Geographic special on mammoths when the phone rang. My mom answered, and immediately, a wide smile spread across her face. When she told me that I had won, I was happier than I could ever remember being, I screamed and ran up and down the stairs and all around the house. I completely forgot about the mammoths and did not even remember to turn off the TV until it was really late.
Curiosity is such an important part of who I am. I have always been fascinated by the stars, the planets, the sky and the universe. I remember as a little girl, my grandfather and I would sit together in the backyard for hours. He’d tell me stories and point out the stars.
My grandfather lived in China, thousands of miles away from my home in Kansas. I loved the stars because they kept us together even when we were apart. They were always there, yet there was so much I didn’t know about them. That’s what I love so much about space. No matter how much we learn, it will always possess some mystery.
In the past, space exploration may have been a competition to see who got somewhere first or the fastest. But now, it is one of the few things that bring people together. Science is a language that needs no translation. It doesn’t matter where you’re from or what you look like – you just have to have a thirst for knowledge and a passion for learning in order to succeed.
People often ask me why we go to faraway places like Mars. Why do we explore? My answer to that is simple: because we can; because we’re curious; because we as human beings do not just stay holed up in one place. We are constantly wondering and trying to find out what’s over the hill and beyond the horizon.
The curiosity rover is more than just a robot. It is more than just a titanium body and aluminum wheels. Curiosity represents the hard work, passion, love and commitment of thousands of people from all over the world who were brought together by science. Science is so awesome. It is breathtaking and mind-blowing; and sometimes, it’s just a little bit crazy. The discoveries we make about our world are incredibly humbling. They move us forward and have the potential to benefit all of mankind.
This December it will be four years of my life that have been tied to Curiosity in some way. I’ve met so many amazing people through this experience, from scientists to engineers to administrators to volunteers. Their devotion and enthusiasm inspire me greatly. My journey with Curiosity and the MSL mission team has shaped the person that I am today, as well as the person I would one day like to become.
I am deeply grateful to everyone who made it possible for me to have this amazing adventure.
And to you, I hope your curiosity takes you far.
【小题1】 The method the writer uses to begin the passage is _____.