C
Of all the websites,one that has attracted attention recently is myspace.com.Most of this attention has come from the media and tells every reason why the website should be shut down.The threat of internet predators(窃掠者)is indeed a tough reality,but shutting down the site is not the answer.If myspace.com were shut down,another site would quickly take its place.Therefore,the right way is to teach teens how to use the site safely and educate them about who may be predators and how to avoid them.
The key to staying safe on the Internet is to make sure that your profile(个人资料)is secure.The simplest way is to change the privacy setting on your profile to “private”, which protects your information so that only the people on your friend list can view it.Although this is effective,it is not perfect.Predators can find ways to view your profile if they really want to,whether through hacking in or figuring out their way onto your friend list.Thus,you should never post too much personal information.Some people actually post their home and school addresses,date of birth,and other personal information, often letting predators know exactly where they will be and when.The most information that is safe is your first name and province.Anything more is basically inviting a predator into your life.
Another big issue is photos. I suggest completely skipping photos and never posting a photo of a friend online without asking permission.
Most importantly, never,under any circumstances,agree to a real-life meeting with anyone you meet online.No matter how well you think you know this person, there are no guarantees that they have told the truth.But you could feel free to chat with people you meet on the site, but just remember that not everyone is who they say they are.Hopefully,the next time you edit your profile,you’ll be more informed about the dangers of internet predators and take the steps to defend yourself.
50.Kids can avoid web predators successfully by_________.
A.attracting more public attention
B.shutting down the website “myspace . com”
C.showing the kids ways to try other sites
D.recognizing and getting away from them
51.The safest basic personal information that you can share online is_________.
A.your home address and birthday    B.school address and your first name
C.your first name and province       D.your province and cell phone number
52.We can learn from the passage that_____.
A.not everybody you meet on line is honest and reliable
B.it is not acceptable to post a photo of a friend on line
C.it is not safe by chatting with grown-ups on the website
D.only you and your friends can view your personal profile
53.What could be the best title of this passage?
A.Personal Safety                B.Web Safety for teens
C.Web Hackers in the past        D.Predators’ Tricks


C
Of all the things we eat and drink, water is the most important. Not all people realize this, but it is quite true. The human body can live without food for a long time, but two or three days without water usually result in death.
Many people do not understand how much water the human body needs, but many people do not drink enough, especially in the hot weather. Most people drink when they are thirsty but often need more water after exercises.
65 to 70 percent of the human body is water. Water is important in several different ways. Most people need five to seven litres of water every day, but we need not drink this amount because a lot comes from the food we have. If we don’t have enough water, however, we will feel tired and many become ill. Do you know what the best drink is? Yes, you are right. Cold water!
64.Do most people drink five litres of water every day?
A. Yes, because water is the most important
B. No, because what we eat contains water
C. Yes, because we can’t live without water
D. No, because we are not thirsty
65.How much water are there in the human body?
A. About three fourths of the human body is water.
B. Nearly a half of the human body is water.
C. Less than a half of the human body is water.
D. Almost one fourth of the human body is water.
66.When do we need more water?
A. In cold weather or after exercises.
B. In hot weather or after exercises.
C. Before breakfast, lunch and supper.
D. When we feel tired or become ill.
67.Which of the following is not right?
A. Cold water is the best drink.
B. Few people understand how much water the human body needs.
C. Not all the people realize water is the most important.
D. When we feel tired or become ill, we never need any water.

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