Many people turn to doctors or self-help books, but they ignore(忽视) a powerful thing that could help them fight illness: their friends.

Researchers are only now starting to pay attention to the importance of friendship in health. A 10-year Australian study found that old people with a large circle of friends were 22 percent less likely to die during the study period than those with fewer friends. A large 2007 study showed an increase of nearly 60 percent in the risk(风险) for obesity (肥胖) among people whose friends gained weight. And last year, Harvard researchers reported that strong social ties could improve brain health as we age.

“In general, the role (作用) of friendship in our lives isn’t well realized,” said Rebecca, a professor at the University of North Carolina. “Friendship has a bigger effect on our psychological (心理的) health than family relationships.”

While(尽管) many friendship studies are about the close relationships of women, some research shows that men can benefit, too. In a six-year study of 736 middle-aged men, having friendships reduces the risk of heart attack. Only smoking was as important a risk factor (因素) as having little social support.

Exactly why friendship has such a big effect isn’t entirely(完全) clear. While friends can send a sick person to the hospital or pick up medicine, the benefits go well beyond physical assistance. Friendship clearly has a big psychological effect. “People with stronger friendships feel like there is someone they can turn to,” said Karen, a doctor. “The message of these studies is that friends make your life better.”

1.The three studies in the second paragraph show that ______.

A. old people need friends the most

B. friends can help us lose weight

C. social ties are connected to health

D. more friends make us healthier

2.What do Rebecca’s words in the 3rd paragraph mean?

A. Friendship is more important to women than to men.

B. What people need most is a friend’s care.

C. Friendship is more important than family relationship.

D. The value of friendship hasn’t been fully understood.

3.The author mentioned smoking in the 4rd paragraph to discuss ______.

A. the cause of heart attack B. the risk of having no friends

C. smoking is bad for men D. friends’ influence on habits

4.What would be the best title of the text?

A. Friends are better than medicine

B. Friends are as important as a family

C. Having good friends leads to a healthier life

D. Friendship makes people happy

D

Mars was the first planet that humans attempted to get to. Since the 1960’s, scientists have been working to learn more information about the Mars’ past, We now know that Mars was once a warm, wet place with great oceans and deep rivers. We also know that about 3.7 billion years ago, all that water disappeared when the planet lost its air. But why did the atmosphere on Mars change so greatly?

NASA had launched the MAVEN spacecraft in the hope of answering that very question. MAVEN will study the remains of Mars’ air and help scientists figure out what became of the rest of it.

The spacecraft was launched on Monday, November 18, 2013, from Cape Canaveral, Florida. The trip to Mars takes about 10 months. and MAVEN is scheduled to go into orbit in September 2014. It is the first spacecraft created with the purpose of studying Mars’ atmosphere. Its wings measures 37.5 feet not quite the length of a school bus, and it weighs 1991 pounds about the same amount as a small car. MAVEN is equipped with eight different tools to measure and study the planet’s atmosphere. To collect information, it will fly in orbit as fast as 3278 miles per hour, and as slow as 93 miles per hour.

Once it arrived at Mars, MAVEN will have plenty of company. The spacecraft Curiosity is still walking around the planet’s rocky surface, studying the geology, chemistry and possible biology there. NASA currently has a number of spacecrafts getting unique views of Mars with powerful cameras and telescopes. These missions are all slow, steady steps forward to discover Mars secret past. While the results may not be revealed for some time, an exciting exploration is on the way.

1.We can learn from the first paragraph that________

A.all the scientists wanted to live on Mars

B.people have had a better knowledge of Mars nowadays

C.spaceships have been sent up to Mars since 1960s

D.all the water on Mars has been gone for ten billion years

2.The MAVEN spacecraft has been launched with the purpose of________

A.analyzing the change of the atmosphere on Mars

B.assisting Curiosity in studying the surface of Mars.

C. analyzing what is contained in Mars’ air

D.checking whether water still exists on Mars

3.It can be inferred from, the text that__________.

A.many different tasks will be given to MAVEN when it lands on Mars

B.many spacecrafts are working around Mars to study its water

C.more wonderful things about Mars will be found in the future

D.more spacecraft will be sent up to help Curiosity

4.What is the best title of this text?

A.A new finding on Mars

B.A new spacecraft sent to Mars

C.The rapid development of Mars

D.The great change of the Mars’ atmosphere

Blood donation, also called blood banking, is a wonderful thing to do. It is an easy and direct way to contribute to social work and help the community. It helps to save lives and helps those who are in need of blood due to bad condition or the heavy loss of blood during operations or in accidents.

You are able to give or donate blood every three or four month, and it is a great way to make a huge difference to someone’s life and you can always be proud of it after making valuable contributions to society. Blood donation is not a big problem, but you need to keep a few points in mind.

Before donating blood, make sure that the ferrum (铁) level in your body is high enough and for that you should take a healthy diet. Do not go for blood donation on an empty stomach. You should follow the correct process so that everything goes well. After having a balanced diet you will feel strong and comfortable to donate blood. Afterwards, you will not feel faint or weak.

For required hemoglobin (血红蛋白) in your body, drink lots of juice and other drinks. Fruit juice, such as apple juice is very good for increasing the blood level in your body. For a good blood flow in your body, drink at least 6-7 glasses of water every day. Completely avoid a day before and after giving blood, taking alcohol (酒). Do not smoke half an hour before giving blood.

When you are going for blood donation, be relaxed, which helps keep the right blood pressure. During the blood donation activity, take a deep breath and try to calm yourself. Don’t join in some other activities.

When you donate blood, you are making the effort to save someone’s life. Blood donation is a very simple and fast process, but you need to take care of yourself after donating blood. Proper care helps to reduce side effects. The following are a few tips that will help you out.

Take a rest for 15 minutes after the donation. It helps you to feel relaxed.

Eat something and drink juice before leaving the blood donation centre. Make sure that you have meals after donating blood. Smoking should be avoided for one hour after the process. Avoid some activities right away, for example, driving.

Finally, be proud of yourself because you have done a great thing in helping to save someone’s life. Blood donation is a very important activity.

Title

Blood donation—an important activity

The1.of blood do-nation

Making 2.to social work and the community.

Helping those people who suffer the 3.of blood.

Gibing yourself a sense of 4.

5.the donation

Take a healthy diet for a high ferrum level

Drink fruit juice for enough hemoglobin

Drink at least 6-7 glasses of water 6.for a good flow of blood

Don’t 7.alcohol,caffeine,etc or smoke cigarettes

During the donation

Relax and take a 8.breath

Never involve yourself in other activities

After the donation

Take a rest

Have meals

Don’t smoke until one hour 9.

Never take part in some activities immediately like 10.

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