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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

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Facial expressions carry meaning that is determined by situations and relationships. For example, in American culture (文化) the smile is in general an expression of pleasure. Yet it also has other uses. A woman’s smile at a police officer does not carry the same meaning as the smile she gives to a young child. A smile may show love or politeness. It can also hide true feelings. It often causes confusion (困惑) across cultures. For example, many people in Russia smiling at strangers in public to be unusual and even improper. Yet many Americans smile freely at strangers in public places (although this is less common in big cities). Some Russians believe that Americans smile in the wrong places; some Americans believe that Russians don’t smile enough. In Southeast Asian culture, a smile is frequently used to cover painful feelings. Vietnamese people may tell a sad story but end the story with a smile.
Our faces show emotions (情感), but we should not attempt to “read” people from another culture as we would “read” someone from our own culture. The fact that members of one culture do not express their emotions as openly as do members of another does not mean that they do not experience emotions. Rather, there are cultural differences in the amount of facial expressions permitted. For example, in public and in formal situations many Japanese do not show their emotions as freely as Americans do. When with friends, Japanese and Americans seem to show their emotions similarly.
It is difficult to generalize about Americans and facial expressiveness because of personal and cultural differences in the United States. People from certain cultural backgrounds in the United States seem to be more facially expressive than others. The key is to try not to judge people whose ways of showing emotion are different. If we judge according to our own cultural habits, we may make the mistake of “reading” the other person incorrectly.
What does the smile usually mean in the U.S?

A.Love. B.Politeness.
C.Joy. D.Thankfulness.

The author mentions the smile of the Vietnamese to prove that smile can ___ .

A.show friendliness to strangers
B.be used to hide true feelings
C.be used in the wrong places
D.show personal habits

What should we do before attempting to “read” people?

A.Learn about their relations with others.
B.Understand their cultural backgrounds.
C.Find out about their past experience.
D.Figure out what they will do next.

What would be the best title for the test?

A.Cultural Differences B.Smiles and Relationship
C.Facial Expressiveness D.Habits and Emotions

You may think that sailing is a difficult sport, but it is really not hard to learn it. You do not need to be strong. But you need to be quick. And you need to understand a few basic rules about the wind.
First, you must ask yourself, “Where is the wind coming from? Is it coming from ahead or behind or from the side?” You must think about this all the time on the boat. The wind direction tells you what to do with the sail.
Let’s start with the wind blowing from the behind. This means the wind and the boat are going in the same direction. Then you must always keep the sail outside the boat. It should be at a 90° angle (角度) to the boat. Then it will catch the wind best.
If the wind is blowing from the side, it is blowing across the boat. In this case, you must keep the sail half way outside the boat. It should be at a 45° angle to the boat. It needs to be out far enough to catch the wind, but it shouldn’t flap (摆动). It shouldn’t look like on a flagpole. If it is flapping, it is probably out too far, and the boat will slow down.
Sailing into the wind is not possible. If you try, the sail will flap and the boat will stop. You may want to go in that direction. It is possible, but you can’t go in a straight line. You must go first in one direction and then in another. This is called tacking. When you are tacking, you must always keep the sail inside the boat.
What should you consider first while sailing?

A.Sailors’ strength. B.Wave levels.
C.Wind directions. D.Size of sails.

What does the word “It” underlined in Paragraph 4 refer to?

A.The boat. B.The wind.
C.The sail. D.The angle.

What do you have to do when sailing against the wind?

A.Move in a straight line. B.Allow the sail to flap.
C.Lower the sail. D.Tack the boat.

Where can you probably find the text?

A.In a popular magazine. B.In a tourist guidebook.
C.In a physics textbook. D.In an official report.

Cold weather can be hard on pets, just like it can be hard on people. Sometimes owners forget that their cats are just as used to the warm shelter (住所) as they are. Some owners will leave their animals outside for a long period of time, thinking that all animals are used to living outdoors. This can put their pets in danger of serious illness. There are things you can do to keep your animal warm and safe.
Keep your pets inside as much as you can when the weather is bad. If you have to take them out, stay outside with them. When you’re cold enough to go inside, they probably are too. If you must leave them outside for a long time, make sure they have a warm, solid shelter against the wind, thick bedding, and plenty of non-frozen water.
If left alone outside, dogs and cats can be very smart in their search for warm shelter. They can dig into snow banks or hide somewhere. Watch them closely when they are left outdoors, and provide them with shelter of good quality. Keep an eye on your pet’s water. Sometimes owners don’t realize that a water bowl has frozen and their pet can’t get anything to drink. Animals that don’t have clean and unfrozen water may drink dirty water outside, which may contain something unhealthy for them.
What do we learn about pets from Paragraph 1?

A.They are often forgotten by their owners.
B.They are used to living outdoors.
C.They build their own shelter.
D.They like to stay in warm places.

Why are pet owners asked to stay with their pets when they are out in cold weather?

A.To know when to bring them inside.
B.To keep them from eating bad food.
C.To help them find shelters.
D.To keep them company.

What is the purpose of this text?

A.To solve a problem.
B.To give practical advice.
C.To tell an interesting story.
D.To present a research result.

Have you ever thought, “I wish I could take a year off and just travel around the word?” Well, three lucky American teenagers were able to do just that. The teens — two males and one female — got an all-expenses paid, yearlong hike to five continents.
This trip didn’t include any five-star hotels or shopping funs. Eighteen-year-old Jamie Fiel from Keller, Texas, 17-year-old Arsen Ewing from Canyon, California, and 16-year-old Tyler Robinson from Lincoln, Massachusetts, didn’t expect fancy treatment. They signed up for the experience of a lifetime, which included hard work, often uncomfortable accommodations, and encounters with some of nature’s most dangerous animals and environments.
Jamie, Arsen, and Tyler were among hundreds of high school kids nominated by their science teachers to take this trip. Earthwatch Institute sponsored this adventure. Each year, Earthwatch employs thousands of volunteers worldwide to help with scientific research projects.
The group went all around the world to get a close look at the most pressing environmental issues of our time. Their assignments were as varied as their locations, and included measuring and attending pink flamingos in Kenya’s Great Rift Valley, and tracking giant sea turtles in Costa Rica.
As they worked with the Earthwatch scientists, Jamie, Arsen, and Tyler began to understand that we are at a critical moment in the life of our planet. Time for change is running out. As the teens went from country to country and witnessed different environmental dangers and challenges, they understood that solutions to important environmental issues start with the power of one person’s actions. They realized that each of them can make a difference.
These teenagers went on the journey around the world .

A.to experience the most serous environmental problems on the earth
B.to bring the kindness of America to the other parts of the world
C.to go on sightseeing around the world
D.to call on more teenagers to join Earthwatch Institute

What’s TRUE about their journey?
A. They had to pay for their journey on their own expense.
B, They often had to move from one hotel to another.
C. They had to take great pains to collect environmental information.
D. They received a warm welcome every time they arrived at a new place.
It can be inferred that Earthwatch Institute could be .
A. an international university that takes in students from all over the world
B. a TV station that makes programmes on the beautiful scenery of the earth
C. a travel agency that organizes adventure trips specially for school children

What exactly is a Dream Career? I am sure it means different things to different people. You could presently be unsure about what your final job would be. If you have any doubts about what your dream career is, you may know which careers you definitely would not like to do. For example, if you have an interest in art, and do not like math, you most certainly would not like being a mechanical engineer. If you love art, and have no artistic talent, maybe you would like to be around art instead, as an art curator(馆长).
A career related to your passion, hobby, or special interest, is the path to follow in finding your dream job. Try thinking about what things you like to do in your spare time. Many are attracted toward turning what they love to do in their off work hours into a full time job. For example, if you like to put together model cars, maybe you would like opening your own hobby shop, or work for someone who owns one.
Once you find what you are interested in doing, you can then match this to a career which will be similar to what you are passionate about. What you consider a dream career has to center around what kind of person you actually are. This is called your Career Personality. What type of person do you consider yourself to be? People are naturally attracted to those things which reflect who they are as unique individuals. For example, if you are slightly on the shy side, maybe you would like a job where you work on your own, relatively unsupervised, behind a computer. If you are outgoing, maybe you would like to work with others, and be the supervisor.
All it may take to find our dream career is to know ourselves a little better, trust in our own judgment, and be realistic about what we can attain occupationally. This is how I found what I am doing now.
What’s the main purpose of the passage?

A.To explain what a dream career really is.
B.To offer tips on finding a dream career.
C.To tell us what Career Personality means.
D.To give examples of different personalities.

Which of the following about Career Personality is TRUE?

A.One should choose a dream career by his/her personality.
B.Choosing a dream career depends on a person’s ability.
C.One should choose a dream career according to the reality.
D.One should try different types of careers by his/her ability.

Which of the following is what we need to find a dream career?
a. Realizing our ability.
b. Believing in ourselves.
c. Having a better understanding of ourselves.
d. Considering the background of our family.

A.a, c, d B.a, b, c
C.b, c, d D.a, c, d

From the second paragraph we learn your dream career has something to do with the following EXCEPT .

A.your hobby B.your special interest
C.your part—time job D.your passion

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