If you look through the Surui reserve (保护区) with Google Earth, you will see a green area in the middle of yellow surroundings. Once, the Paiter-Surui tribe (部落) lived in the heart of the Amazon rainforest in Brazil. But after the tribe met with Westerners years ago, they nearly disappeared: diseases brought by outsiders reduced the Surui’s numbers from 5,000 to about 250.

Today, some 1,300 people live in 23 villages across 600,000 acres (英亩). Though they are wearing T-shirts and jeans, the Surui decide to protect the tribal culture. They are in danger again. Trees are being cut, animals are being killed, and the forest is becoming smaller and smaller. But this time it’s different. The Surui people have put aside their bows and arrows and taken up a new weapon (武器): the Internet.

The idea comes from the leader of the Surui, Chief Almir Narayamoga. “We decided to use computers to bring attention to our situation,” says Narayamoga. The first in his tribe to go to college, he learned how to use computers.

The chief asked about the possibility of making a map of the Surui reserve using Google Earth. An online tour of the reserve, he believed, would help protect the Surui by showing the world the results of cutting trees and the attacks (进攻) on tribal land. It would also tell the government about their situation. This way, Narayamoga hoped to raise money to protect the rain forest by planting one million trees. “Training and education is now our kind of war,” he says. “We know we have to do so.”

Narayamoga’s visit to Google was a great success. The Internet search company sent teams to the Amazon to train the Surui in using computers, cameras, and phones to photograph their surroundings, which could be found using GPS and then shown on Google Earth. The Surui have now mapped the whole reserve and recorded the animals and plants of the rainforest within it.

While their work is supported (支持) by some international groups, Narayamoga hopes they can support themselves within ten years, with coffee production and tourism. The great thing about the Surui is that they try to find their own ways to deal with the problems they face.

53. How many people are still living in the tribe today?

A. About 600,000.     B. About 5,000.             C. About 1,300.             D. About 250.

54. What is the greatest danger the Surui face now?

A. They are often attacked.                                   B. The reserve is getting smaller.

C. Their culture is forgotten.                          D. The rainforest is disappearing.

55. What do the Surui mainly depend on to protect their land?

A. Normal tools in life.                                  B. Scientific knowledge.

C. Help from outside.                                    D. Information technology.

Teachers say the digital age has had a good and a not-so-good influence on the American teenagers. More than 2,000 high school teachers took an online survey.
75 percent of the teachers said the Internet and digital search tools have had a “mostly good” use for their students' research habits and skills, But 87 percent agreed that these technologies "make the students not have enough attention.” And 64 percent said the technologies “do little to help them in courses.”
Judy Buchanan is a director of the National Writing Project. Ms. Buchanan says digital research tools are helping students learn more, and learn faster. Teachers really like these tools, because they are ways to make some of learning exciting. Young people enjoy using these tools. And the goal is to help them become creative students of meaningful work, and not just that kind of copyist.
But one problem the survey found is that many students don't have a good understanding of how to use the digital knowledge well. In other words, they trust(信任) too much of the information. Judy Buchanan says these students have not developed the skills they need to tell whether the online information is good or bad.
Another problem the survey found is something that might not seem like a problem, at all, being-able to quickly find information online. Teachers say the ability of their students to work hard to find answers is becoming weaker. They say students depend too much on search engines (引擎) and do not make enough use, of printed books or research, librarians.
Besides, many teachers are also worried about the problem that the Internet makes it easy for students to copy work done by others, instead of using their own abilities.
【小题1】      of the teachers agreed technologies may stop students from having enough attention.