日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

I began to send e-mail when I was 17. I discovered Google 5 years later. Now, I use the Internet all the time. Internet has become so popular that 90 percent of 12-to-17-year-olds in the United States use the Internet, and about half of these kids use it every day. They visit chat(聊天) rooms and send e-mails. They go to websites to get information for their homework.

“Kids are now living in a virtual(虛擬的) world,” says Greenfield, an expert at the University of California, “As the Internet is becoming more and more important for our life, we should worry about one question: Is the Internet good or bad for kids? ”

“It’s X to answer the question because the Internet involves(涉及) so many things,” says Justine, who is from Northwestern University. “They include online computer games, news, messages and even e-mails to your grandmother.” So, more and more people believe that the online world can be helpful in some ways but dangerous in others.

“Although it’s not easy to tell whether it’s good or bad,” says Justine, “the Internet, at least, is very useful and can be used widely by everyone in the world.”

1. The writer discovered Google at the age of ______.

A. 5                        B. 12                            C. 17                    D. 22

2. What percentage of American 12-to17-year-olds use the Internet every day?

A. About 45%.               B. About 50%.              C. About  80%.       D. About 90%.

3. Greenfield ______.

A. is an expert from Northwestern University

B. wants to stop all the kids from using the Internet

C. thinks that the Internet is good for all the kids in the world

D. is worrying about whether the Internet is good or bad for kids

4. “X” in the passage should be the word “______”.

A. possible                     B. difficult             C. easy                  D. good

5. Which is the best title of the passage?

A. Don’t Use the Internet                      B. Kids and Emails

C. Is the Internet Good or Bad               D. Two Experts from Universities

Singapore: A Fine City

Singapore welcomes tourists. When you come to visit Singapore, please keep the laws of this country. Here are some points that you must remember.

?? SMOKING: Cigarette smoking is a danger to health. It is not allowed in lifts, cinemas, theaters, all government offices and on buses. If you break it, you have to pay fines of up to $ 1,000.?? LITTER: Singapore is the Garden City of Asia---clean and green. Dropping litter in public places is not allowed. You can be fined up to $ 500 for dropping litter ---even if it only a piece of waste paper or a cigarette end.

?? EATING OR DRINKING: In Singapore, when you take a subway or a bus, you are not supposed to eat or drink anything, or you'll be fined up to $ 500.

? RIDING: When you ride a bike across an underpass(地下通道), please push your bike across the underpass, or you have to pay $ 1,000 for riding your bike.

?? JAYWALKING*: You must always use the pedestrian(步行者, 徒步的)crossing. You can be fined $ 50 for crossing the street less than 50 meters from a crossing. These laws are also for children who are old enough to be in the street on their own.

1.The underlined word "fine" in the passage means ________.

A. 好????????????? ????????????? ????????????? B. 罰款????????????? ????????????? ????????????? C. 晴朗????????????? ????????????? ????????????? D. 健康

2.When you come to visit Singapore，you should remember to ___________.

A. go shopping?????? ????????????? ????????????? ????????????? ????????????? B. keep the law of this country

C. go sightseeing???? ????????????? ????????????? ????????????? ????????????? D. visit some fantastic sights

3.Singapore is a city with _________ according to the passage.

A. cigarettes? ????????????? B. green plants????????????? C. litter???? ????????????? ????????????? D. bikes

4.What will happen if you drop a piece of waste paper in Singapore?

A. You have to pick it up.?????????? ?????????????

B. You have to sweep the street.

C. You will be fined up to$500? ????????????? ????????????? ??

D. You will be told not to do it again.