Su Hua is studying at Cambridge,UK.She has bought a bicycle and is worried about security(安全).Her friend,Kate,found this article and sent it to her.

Introduction A lot of crime is against bicycles.About 150 000 bicycles are stolen every year and most are never found.You can prevent this happening by following a few careful steps. Basic Security Do not leave your bicycle in out-of-the-way places.Always lock your bicycle when you leave.Secure it to lampposts or trees.Take off smaller parts and take them with you,for example lights and saddles(车座). Locks Get a good lock.There are many different types in the shops.Buy one that has been tested against attack.Ask for a recommendation from a bike shop. Marking Security making your bike can act as a deterrent to a thief.It can also help the police find your bicycle.It should be clearly written and include your postcode and your house or flat number.This will provide a simple way to identify your bicycle. Registration There are a number of companies who will security mark your bicycle for you.They will then put your registration number and personal details on their computer database.Then if your bicycle is found it will be easy to contact you. Finally Keep a record of the bicycle yourself:its make,model and registration number.You can even take a photograph of it.This will prove the bicycle belongs to you.

 

1.Which part of the text gives you information on how to lock up your bicycle when you leave it?

A.Locks.                                B.Marking.

C.Registration.                     D.Basic Security.

2.The underlined phrase “act as a deterrent to a thief”means_______.

A.help you recognize your bike

B.help the police find your bicycle

C.stop someone stealing your bicycle

D.stop you worrying about your bike

3.The article advises you to keep a record of your bicycle_______.

A.in the bike shop and your computer

B.in a police station and a security company

C.in a security company and your university

D.by yourself and in a security company

4.The main purpose of this article is_______.

A.to tell you what to do if your bicycle is stolen

B.to suggest ways of keeping your bicycle safe

C.to give you advice on where to buy a good lock

D.to say why you shouldn’t keep your bicycle in a quiet place

 

Childhood is a happy time, right? Not necessarily. Consider these facts.

Depression(抑郁症) may occur in as many as 1 in 33 children.

Once a child has an episode(一段情节) of depression, he or she has a 50 percent chance of experiencing another episode in the next 5 years.

Suicide(自杀) is the 6th leading cause of death for 5–to–15-year-olds.

If your child experiences 5 or more of these signs or symptoms(症状) for at least 2 weeks, he or she may be experiencing depression or another mental illness.

Feeling——Does your child demonstrate:

Sadness

Emptiness

Hopelessness

Guilt

Worthlessness

Lack of enjoyment in everyday pleasures

Thinking ——Is your child having trouble:

Concentrating

Making decisions

Completing schoolwork

Maintaining grades

Maintaining friendships

Physical problems ——Does your child complain of :

Headaches

Stomachaches

Lack of energy

Sleeping problems ( too much or too little)

Weight or appetite changes ( gain or loss)

Behavior problems ——Is your child:

Irritable（烦躁）

Not wanting to go to school

Wanting to be alone most of the time

Having difficulty getting along with others

Cutting classes or skipping school

Dropping out of sports, hobbies or other activities

Drinking alcohol or using drugs.

Suicide risk——Does your child talk or think about:

Suicide

Death

Other morbid（生病的）subjects

Sometimes, a child who causes problems at school or at home may actually be depressed, according to the American Academy of Child and Adolescent Psychiatry. If you think your child may be depressed, it’s important to have your child treated. Discuss your child’s problems with his or her doctor. The doctor may suggest a referral to a children’s psychologist(心理医生)or psychiatrist（精神病医生）.

Treatment may include individual and family therapy(治疗), along with an antidepressant medication (抗抑郁药)

1.This article is particularly written for ____.

A. parents    B. teachers     C. children     D. Psychologists

2.Which statement describes a child who may have physical problems?

A. The child is always in high mood.

B. The child always feels tired but sleeps only four hours a day.

C. The child hates to study.   

D. The child can not concentrate on one thing for a long period.

3.What should we do when we find our kids experiencing depression?

A. Ask for leave to accompany them at home.

B. Ask them to take antidepressant immediately.

C. Go to see the doctor.

D. Ask them to have a good rest.

 

Downing the last drop of an expensive famous brand H₂O as well as remembering to throw the empty bottle in the recycling bin, makes you feel pretty good about yourself, right? It shouldn’t. Even when the bottles are recycled, there are all kinds of other consequences of swallowing bottled water, says Melissa Peffers, the air-quality program manager for Environmental Defense.

The containers are often filled in faraway lands, then shipped from abroad, and storedin refrigerators at your local store. Compare that with the influence on environment of turning on your tap, filling a glass, and drinking up!

Anyone who is choosing bottled water for health reasons is misguided, says Peffers, “Most bottled water is just tap water.” And what comes out of your tap is carefully monitored to follow the strict rules. Consider another fact that bottled water is surprisingly expensive, especially when compared with the alternative, which is almost free, and it is astonishing that America’s desire for bottled water seems impossible to satisfy, reaching nearly 30 billion bottles a year.

“My parents’ generation never had bottled water,” says Isabelle Silverman, an Environmental Defense legal adviser. She has made a commitment to going bottle free. “You don’t need to fetch it home from the store, and it’s cheaper,” she adds.

Bottled water’s role as a status symbol needs to change, Peffers points out. So when a waiter at an expensive restaurant offers  “And what’s your drink?” that’s no reason to forget your conviction（信念）. “Don’t be afraid to say, ‘I’ll have tap.’ Say it loud enough that the other tables nearby can hear you,” Peffers says. “And then spend that money on a dessert.”

In the first paragraph, the underlined sentence “It shouldn’t.” suggest that people _______.

A. shouldn’t feel pleased with finishing the water in the bottle

B. shouldn’t feel good about drinking an expensive brand H₂O

C. shouldn’t be content with just recycling empty bottles

D. shouldn’t be satisfied with drinking only bottled water

According to the author, tap water is _______.

A. as safe as bottled water

B. morel likely to be polluted

C. healthier than bottle water

D. less convenient than bottled water

The underlined part “going bottle free” (in Para. 4) means “_______”.

A. making bottled water free

B. abandoning bottled water

C. recycling use water bottles

D. providing free water containers

Why does Peffers ask people to say “I’ll have tap.” Loudly?

A. To encourage them to set an example for others to follow.

B. To advise them to save the money for one more dessert.

C. To remind them to be aware of their social status.

D. To persuade them to speak confidently in public.

Motherhood may make women smarter and may help prevent dementia(痴呆) in old age by bathing the brain in protective hormones(荷尔蒙) , U.S. reseachers reported on Thursday.

Tests on rats show that those who raise two or more litters of pups do considerably better in tests of memory and skills than rats who have no babies, and their brains show changes that suggest they may be protected against diseases such as Alzheimer’s(早老痴呆症). University of Richmond psychology professor Craig Kinsley believes his findings will translate into humans.

“Our research shows that the hormones of pregnancy(怀孕) are protecting the brain, including estrogen(雌激素), which we know has many neuroprotective (保护神经的) effects,” Kinsley said.  

“It’s rat data but humans are mammals just like these animals are mammals,” he added in a telephone interview. “They go through pregnancy and hormonal changes.”

Kinsley said he hoped public health officials and researchers will look to see if having had children protects a woman from Alzheimer’s and other forms of age-related brain decline.

“When people think about pregnancy, they think about what happens to babies and the mother from the neck down,” said Kinsley, who presented his findings to the annual meeting of the Society of Neuroscience in Orlando, Florida.

“They do not realize that hormones are washing on the brain. If you look at female animals who have never gone through pregnancy, they act differently toward young. But if she goes through pregnancy, she will sacrifice her life for her infant—that is a great change in her behavior that showed in genetic alterations(改变) to the brain.”

How do scientists know “Motherhood may make women smarter”?

A. Some researchers have told them.

B. Many women say so.

C. They know it by experimenting on rats.

D. They know it through their own experience.

What does the phrase “litters of pups” mean in the second paragraph?

A. Baby rats.         B. Animals.    C. Old rats.            D. Grown-up rats.

What can protect the brain of a woman according to the passage?

A. Estrogen.                            B. The hormones of pregnancy.    

C. More exercise.                     D. Taking care of children.

“It’s rat data but humans are mammals just like these animals are mammals.” What does the sentence suggest?

A. The experiments on the rats have nothing to do with humans.

B. The experiments on the rats are very important for animals.

C. The experiments on the rats are much the same on humans.

D. The experiments on the rats are much the same on other animals.

Which title is the best for this passage?

A. Do You Want to Be Smarter?  B. Motherhood Makes Women Smarter

C. Mysterious Hormones       D. An Important Study

LONDON----Here’s a new warning from health experts: Sitting is deadly.

     Scientists are increasingly warning that sitting for prolonged periods — even if you also exercise regularly — could be bad for your health. And it doesn’t matter where the sitting takes place — at the office, at school, in the car or before a computer or TV — just the overall number of hours it occurs. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.

　　In an editorial published this week in the British Journal of Sports Medicine, Elin EkblomBak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.

　　While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.

　　"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating(调节) the amount of glucose（葡萄糖） and fat in the body start to shut down.

　　Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day — but still spend a lot of time sitting — might get more benefit if that exercise were spread across the day, rather than in a single bout.（一回）

　　Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.

　　"We don’t have enough evidence yet to say how much sitting is bad," said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. "But it seems the more you can get up and interrupt this sedentary behavior, the better."

　　Figures from a U.S. survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.

　　Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible to offset those effects.

　　"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said.

1.What is the best title for the text?

A. Not Sitting Too Much While Working      B. How To Avoid Sitting Too Much

C. Sitting Too Much Could Be Deadly          D. More And More People Sit Too Much

2.According to the research,______________.

A. the more time you spend in exercising in a single bout, the healthier you will be.

B. those who often sit too much are sure to grow fat or suffer from a heart attack.

C. regular exercise is effective to get rid of the side effect of sitting too much.

D. you had better not sit for more than four hours in a single bout.

3.How does the danger of sitting too much affect the human body?

A. It results in a higher death risk.

B. It increases glucose and fat in the body.

C. It makes a person unable to exercise long enough in a day.

D. It causes the gene to fail to balance the glucose and fat in the body.

4.In the opinion of Ekblom-Bak, you’d better have a rest in the office by________.

A. sending your friends e-mails           

B. having a walk around your office

C. chatting online or playing computer games 

D. listening to music with your head on the desk.