Question

The Internet plays a big part in human life. We use it for work and entertainment. We can find new recipes on the Interact or advice on staying healthy. We can even use it to learn a new language. We use the Internet to keep in contact with family and friends and stay in touch with issues we care about. The list goes on and on.

Well, there may be no going back to an Internet-free life. But can using the Internet too much be bad for our health? It might be, say researchers. A new study finds that heavy Internet use may be connected to high blood pressure in an unlikely group---teenagers. So, try to be a responsible guardian for your children.

The study results show that teens who spend at least 14 hours a week online are more likely to have high blood pressure. High blood pressure makes your heart and blood vessels work too hard. Over time, this extra strain increases your risk of a heart attack or stroke. High blood pressure can also cause heart, kidney and brain diseases.

The Henry Ford Hospital in Detroit, Michigan did the study. It involved 335 young people, from 14 to 17 years old. One hundred and thirty-four of the teens were described as “heavy Internet users”. Researchers found that out of these 134 teens, 26 had high blood pressure. The researchers say the study is the first one to connect heavy web use with high blood pressure. Another research has connected that heavy Internet use with health problems including anxiety, depression and obesity.

The lead researcher of the study is Andrea Cassidy-Bushrow. For the purpose of the study, she explains, teens considered heavy Internet users were online on average “25 hours a week”. In a statement she said, “Using the Internet is part of our daily but it shouldn’t consume us.”

Ms. Gassidy-Bushrow adds that it is important for teens to take regular breaks from their computers or smart phones and to do some kinds of physical activities. She also suggests that parents limit their children’s use of the Internet to two hours a day, five days a week.

1.The author mainly wants to tell us       .

A. how to prevent high blood pressure.

B. too much Internet use may be bad for teenagers.

C. it’s necessary for teenagers to avoid the Internet.

D. heavy Internet use will worsen teenagers’ memory.

2.What does the underlined sentence in Paragraph 5 mean?

A. People shouldn’t buy goods through the Internet.

B. People shouldn’t waste too much time on the Internet.

C. People shouldn’t fall in love with the Internet.

D. People should control the time length of using the Internet

3.According to Casssidy-Bushrow, teenagers’ use of the Internet should be limited to       .

A. 25 hours a week    B. fourteen hours a week

C. ten hours a week    D. five hours a week

4.The text is mainly intended for       .

A. parents    B. teachers

C. web-designers    D. students

Answer

1.B

2.D

3.C

4.A

【解析】这篇文章是写给父母的一篇文章，主要讲了过多的使用网络对青少年有害，要求父母合理控制孩子的上网时间。

1.主旨大意题。由But can using the Internet too much be bad for our health? It might be, say researchers. A new study finds that heavy Internet use may be connected to high blood pressure in an unlikely group---teenagers. So, try to be a responsible guardian for your children. 可知这篇文章主要讲了过多的使用网络对青少年有害，选B。

2.句意理解题。“Using the Internet is part of our daily but it shouldn’t consume us.” 这句话的意思是使用互联网是我们日常生活的一部分，但是不要让它毁灭了我们，暗含的意思是人们应该控制上网时间，选D。

3.计算题。由She also suggests that parents limit their children’s use of the Internet to two hours a day, five days a week. 可知每天上网两小时，一周上网五天，所以一共是十个小时，选C。

4.推理判断题。由So, try to be a responsible guardian for your children. 可判断出这篇文章目的在于让父母阅读，选A。

名师点睛：阅读理解题的主旨大意题往往是比较难的一种题型，例如本篇中的小题1，这类题要求学生对文章的内容在理解的基础上，有一个整体的把握。找主题句是一种非常有效的方法，But can using the Internet too much be bad for our health? It might be, say researchers. A new study finds that heavy Internet use may be connected to high blood pressure in an unlikely group---teenagers. So, try to be a responsible guardian for your children.就是这篇文章的主题句。