If you are having trouble falling asleep, you are in good company. About 65% of Americans said they have sleeping problems a few nights each week, according to a recent study by the National Sleep Foundation. Sleeping too little can lead to a higher risk of becoming fat and getting depressed(沮丧的). But before you go to a doctor for advice, it is worth examining your sleeping habits one more time. Some of your favorite evening habits may have something to do with the sleeping problems.
Setting a Bright Alarm Clock
The light of your bright alarm clock can prevent you from falling asleep. You can make your room as dark as possible. Cover the bright numbers with a book or consider buying a small travel clock. Your cellphone alarm may also do the trick.
Counting Sheep
When you just can’t  fall asleep, it’s useless to stay in bed to count sheep. If you’ve been trying to fall asleep for more than 30 minutes, the National Sleep Foundation suggests you get up to do some reading or watch TV for a while. Such activities will make you sleepy. Before you know it, you’ll be going back to bed really tired.
Exercising Late at Night?
Daytime workouts(锻炼) will keep you full of energy for hours. That’s why you don’t want to exercise within three hours of hitting the sack. Fierce(剧烈的)  physical activity raise your body temperature and pumps your energy level—both are bad for a good night’s sleep.
【小题1】What can we learn from the first sentence of the passage?

A．It’s not good to fail to fall asleep at night.

B．People in a good company often have sleeping problems.

C．There are many people who have sleeping problems.

D．You should find someone to talk to if you can’t fall asleep.

【小题2】The underlined part “hitting the sack” in the last paragraph means “______”.

A．going back home	B．going to bed
C．going to the gym	D．falling asleep

【小题3】Which of the following is NOT mentioned in the passage?

A．The bad results o f getting too little sleep.

B．Why the bright alarm clock keeps you awake.

C．What to do if you can’t fall asleep after 30 minutes.

D．Why watching TV and reading books make people sleepy.

【小题4】By writing the passage, the writer mainly wants to tell us _______.

A．why so many people can’t sleep well at night

B．how to enjoy a good night’s sleep

C．that sleeping problems are troubling more and more people

D．that people may solve their sleeping problems by some habits

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
  【小题1】  
Home is a place where one feels safe and secure but unfortunately, it is also a place where you may have serious accidents. The biggest single cause of accidents is human error! So you must take care of yourself!
Causes of home accidents.
  【小题2】   Balconies, fireplaces, staircases, ponds, glass doors or kitchens can all increase the risk of accidents. Hot water, household chemicals, fireplaces, matches, alcohol and sharp objects are also potential dangers. Loosing balance, clumsiness and being tired or careless can be the reasons for these accidents. What’s more, if you are under stress or when a routine is changed, you may also be under the risk of home accidents.
Most common types of accidents.
You can see many dangerous home accidents happening around you. The most common ones are slips, falls and collisions. They are not fatal but often result in broken bones. The second most common types of accidents are burns, swallowed objects or breathed in chemicals.
  【小题3】   Some other possible dangers at home are poisioning, choking, drowning, electric shocks, and animal bites. Some of these accidents may even result in death.
The importance of education.
Sometimes the simplest precaution protects you from the greatest harm.    【小题4】   The Ministry of Health can train professionals to educate nursing staff, ordinary people, voluntary workers, teachers, nursery staff and parents in home accident prevention and control. When people know first aid, they can reduce the risk of serious injuries.
  【小题5】   
You must take measures to make your home a safer place. For instance, keep knives and other sharp objects in a safe drawer. Wipe up any liquids on the floor immediately in order not to slip or fall. Keep hot objects away from the reach of children. You also mustn’t leave children unattended near a bath that has water in it. If you keep furniture away from windows, you may prevent possible harm. Store all medicines, household chemicals, and so on, preferably in a locked box and do not forget to keep all dangerous substances in their orginal containers. In brief, if you want to protect yourself, be careful not to be sorry!

A．Is home really safe?

B．Nursing home injuries.

C．Ways of preventing accidents.

D．The design of houses can cause accidents.

E. Accidents can be avoided at home.
F. They especially affect children and need hospital attendance.
G. Therefore, it is important that we should educate people.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
The right pair of exercise shoes can do a lot to prevent discomfort and injuries, personal trainers say．Here are some shopping tips:
­    【小题1】   Depending on your workout, shoes designed for walking, running, tennis, cross-training or another specialty will provide the best support for your feet．
Shop when you normally exercise．Feet actually get bigger throughout the day, sometimes swelling up as much as a half-size by nighttime．  【小题2】  
Try them on．Never grab a pair of exercise shoes based only on the size of footwear you normally buy．Bring the type of socks you’d wear to work out and go for a walk through the store．
  【小题3】   You should be able to spread your toes out comfortably．Make sure there’s about a half-inch of space between them and the front of the shoe．The back should fit snugly (warmly and comfortably) against your heel and not move up and down．If your feet are different sizes, buy based on the larger one．
Talk to an expert．Shoe salesmen and personal trainers can study your stride (步伐) and the shape of your feet． 【小题4】  
  【小题5】  Many trainers recommend switching footwear every three to five months, if possible, to maintain（保持）proper cushioning and support．
One tip: if you have to tie your shoes very tightly to feel a good amount of support, they may be ready to go．

A．Think about how much you can afford to buy the workout shoes．

B．Consider your type of exercise．

C．Focus on fit．

D．So don’t shop first thing in the morning if you often work out in the evening．

E．Pay more attention to new style shoes．
F．Replace worn shoes regularly．
G．Usually they can recommend the best shoes to guard against injuries．

Despite all the reports of Internet security attacks over the years, including the recent ones on Google’s e-mail service, many people have reacted to the break-ins with a shrug (耸肩).

Mr. Shulman and his company examined a list of 32 million passwords that an unknown hacker（黑客） stole last month from Rock You, a company that makes software for users of social networking sites like Facebook and MySpace. The list was briefly posted on the Web, and hackers and security researchers downloaded it.

The list provided an unusually detailed window into computer users’ password habits. Typically, only government agencies like the F.B.I. or the National Security Agency have had access to such a large password list.

Some Web sites try to keep back the attackers by freezing an account for a certain period of time if too many incorrect passwords are typed. But experts say that the hackers simply learn to trick the system, by making guesses at an acceptable rate, for instance.

To improve security, some Wed sites are forcing users to mix letters,numbers even symbols in their passwords. Others, like Twitter, prevent people from picking common passwords.

Still, researchers say, social networking and entertainment Web sites often try to make life simpler for their users and are unwilling to put too many controls in place.

Even commercial sites like eBay must weigh the consequences of freezing accounts, since a hacker could, say, try to win an auction（拍卖） by freezing the accounts of other potential buyers.

But owing to the reality of our overcrowded brains, the experts suggest that everyone choose at least two different passwords— a complex one for Web sites where security is vital, such as banks and e-mail, and a simpler one for less risky places, such as social networking and entertainment sites.

Mr. Moss relies on passwords at least 12 characters long, figuring that those make him a more difficult target than the millions of people who choose five-and six-character passwords.

“It’s like the joke where the hikers run into a bear in the forest, and the hiker that survives is the one who outruns his companions,” Mr. Moss said. “You just want to run that bit faster.”

The underlined sentence “Many people have reacted to the break-ins with a shrug” shows that many people            .

A.don’t take seriously the hacker’s break-ins

B.are worried and frightened at the hacker’s break-ins

C.don’t know what to do with the hacker’s attacks

D.are eager to get helps from the experts

According to the passage, which of the following web sites needs a more complex password?

A.A social web site.                            B.An entertainment web site.

C.A commercial web site.                    D.A game web site.

The Internet users are advised to             in order to keep back the hackers.

A.mix letters, numbers and symbols as well

B.choose passwords with at least 12 characters

C.choose passwords with 5 or 6 characters

D.choose at least two different passwords

Which would be the best title for the passage?

A.Password, good luck or risk!                          B.Popular Passwords, High Risk!

C.Clever Hackers, Stupid Netizens.                    D.Hacker,the Enemy of Internet Security.

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation(辐射) that is bad for your health, but here are some ways to protect yourself from computer radiation.

__1___Green tea can be absorbed by the body easily into a form of vitamin A, which helps reduce radiation.__2__

It is advisable to attach a radiation filter plate(辐射过滤板)in front of your computer’s screen. Make sure to avoid putting any mental substances near your computer as these may have reflected some of the electromagnetic waves that are harmful to your health. __3__ The brighter the screen the higher the radiation there will be and vice versa.

You can also put some radiation-absorbing plants such as several cacti near your computer to prevent radiation.

Make sure you do a skincare protection before sitting in front of the computer .

___4__Wash your face soon after using the computer in order to reduce 70% of the radiation.

__ 5___ Old computer in general, has one to two times more radiation released than the new one within the same distance.

A．And adjust the brightness of your computer screen.

B．Apply a layer of facial mask to protect yourself.

C．And adjust the sound level on your computer.

D．The most efficient way is by drinking some coffee regularly.

E.The simple way is by drinking 2 or 3 cups of green tea every day.

F.If possible, purchase a new computer instead of using an old model computer.

G.It also helps keep our eyes see things clearly in the dark by improving the visual ability.