安徽舒城2017高一英语下学期研究性学习材料(四)!(2)

6. According to the text, the Green Tiger Campaign _____ . A. aims to help protect tigers B. was organized by teachers C. has achieved great success D. developed into Green Teen 7. Kristen advises people to _____ . A. find special interests B. ask teachers questions C. take action immediately

D. solve problems in a different way

C

Facebook is the world’s biggest social networking site. People are being tricked into Facebook with the promise of a fun, free service without realizing they’re paying for it by giving up loads of personal information.

Most Facebook users don’t realize this is happening. Even if they know what the company is up to, they still have no idea what they’re paying for Facebook because people don’t really know what their personal data is worth.

The biggest problem, however, is that the company keeps changing the rules. Early you could keep everything private. That was the great thing about Facebook— You could create your own little private network. Last year, the company changed its privacy rules so that many things— your city, your photo, your friends’ names— were set, by default (默认),to be shared with everyone on the Internet.

According to Facebook’s vice-president Elliot Schrage, the company is simply making changes to improve its service, and if people don’t share information, they have a “less satisfying experience”.

Some critics(批评家) think this is more about Facebook looking to make more money. In original business model, which involved selling ads and putting them in the side of the pages totally, who wants to look at ads when they’re online connecting with their friends?

The privacy issue has already landed Facebook in hot water in Washington. In April，Senator Charles Schumer called on Facebook to change its privacy policy. He also urged(催促) the Federal Trade Commission to set guidelines for social

3

networking sites. “I think the senator rightly communicated that we had not been clear about what the new products were and how people could choose to use them or not to use them,” Schrage admits.

I suspect that whatever Facebook has done so far to invade our privacy, it’s only the beginning，which is why I’m considering cancelling（取消） my account. 舒中高一英语 第3页 (共8页) Facebook is a handy site, but I’m upset by the idea that my information is in the hands of people I don’t know. That’s too high a price to pay. 8. What do we learn about Facebook from the first paragraph?

A. It is a website that sends messages to users who want to get married. B. It earns money by putting on advertisements.

C. It provides loads of personal information to its users. D. It makes money by selling its users’ personal data. 9. What does the author say about most Facebook users?

A. They are unwilling to give up their personal information. B. They care very little about their personal information. C. They don’t identify themselves when using the website. D. They don’t know their personal data enriches Facebook.

10. Why does Facebook make changes to its rules according to Elliot Schrage? A. To obey the Federal guidelines. B. To provide better service to its users. C. To improve its users’ connection D. To expand its business.

11. Why does the author plan to cancel his Facebook account? A. He doesn’t want his personal data badly used. B. He finds many of its users untrustworthy. C. He is dissatisfied with its present service. D. He is upset by its frequent rule changes.

D

Electric cars are dirty. In fact, not only are they dirty, but they might even be more dirty than their gasoline-powered cousins.

People in California love to talk about “zero-emissions (排放) vehicles”, but people in California seem to be clueless about where electricity comes from. Power plants(工厂) mostly use fire to make it. Apart from the few people who have their roofs covered with solar cells, we get our electricity from generators (发电机). Generators are fueled by something—usually coal, oil, but also by heat generated

4

in nuclear power plants. There are a few wind farms and geothermal (地热) plants as well, but by far we get electricity mainly by burning something.

In other words, those “zero-emissions” cars are likely coal-burning cars. Because the coal is burned somewhere else, it looks clean. It is not true. It\'s as if the California Greens are covering their eyes—“If I can\'t see it, it\'s not happening.” Gasoline is an incredibly (极其) efficient way to power a vehicle; a gallon of gas has a lot of energy in it. But when you take that gas (or another fuel) and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat--at the generator, through the transmission lines, etc. A gallon of gas may drive your car 25 miles. But the electricity you get from that gallon of gas won\'t get you nearly as far—so electric cars burn more fuel than gasoline-powered ones. If our electricity came mostly from wind or geothermal, or solar, then an electric car truly would be clean. But for political, technical, and economic reasons, we don\'t use much of those energy sources.

百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说英语学习安徽舒城2017高一英语下学期研究性学习材料(四)!(2)在线全文阅读。