题目内容
Earth Angels1 Joying Brescia was 8 years old when she noticed that cigarette butts (烟头) were littering her hometown beach in Isle of Palms, South Carolina. When she learned that it takes five years for the remains of a cigarette to disintegrate (解体), she decided to take action. Joying launched a "No Butts on the Beach" campaign. She raised money and awareness about the need to keep the beaches clean. With the help of others, Joying also bought or received donations of gallon-size plastic ice-cream buckets. The buckets were filled with sand, and placed at all public-access areas of the beach. The buckets allowed people to dispose of their cigarettes before hitting the beach. Two years later, Joying says the buckets are full and the beach is nearly free of cigarette debris (残片).2 People who live in or visit Steamboat Springs, Colorado, have Carter Dunham to thank for a new state wildlife refuge that preserves 20 acres of marshland and many species of wildlife. Carter and other students wrote a management plan for the area around the Yampa River. The plan was part of a class project when Carter was a freshman at Steamboat Springs High School. Working with the Colorado Division of Wildlife, Carter and his classmates mapped the area and species of animals living there. They also made decisions about, among other things, where fences and parking areas should be built.3 Barbara Brown and her friends collect oil. It started as a project for their 4H Club after one of the girls noticed her father using motor oil to kill weeds on their farm in Victoria, Texas. They did some research and discovered that oil can contaminate ground water—a real danger, in rural areas, where people live off the water on their land. The girls researched ways to recycle oil and worked with a local oil-recycling company on the issue. Now, the "Don"t Be Crude" program runs oil-collection sites—tanks that hold up to 460 gallons—where people in the community can dispose of their oil.4 Five years ago, 11-year-old Ryan Hreljac was a little boy with a big dream for all the people in Africa to have clean drinking water. His dream began in the first grade when he learned that people were dying because they didn"t have clean water, and that as little as $70 could build a well. "We really take water for granted," says Ryan, of Kemptville, Ontario, in Canada. "In other countries, you have to plan for it." Ryan earned the first $70 by doing extra chores (零工), but with the help of others, he has since raised hundreds of thousands of dollars. His efforts led to the start of the Ryan"s Well Foundation, which raises money for clean water and health-related services for people in African countries and developing countries. Joying placed the buckets at all public-access areas to ______. A. make new materials B. preserve wetland and animals C. have clean air D. have clean water E. collect cigarette butts F. collect disposed oil
查看答案
搜索结果不匹配？点我反馈
更多问题
Earth Angels1 Joying Brescia was 8 years old when she noticed that cigarette butts (烟头) were littering her hometown beach in Isle of Palms, South Carolina. When she learned that it takes five years for the remains of a cigarette to disintegrate (解体), she decided to take action. Joying launched a "No Butts on the Beach" campaign. She raised money and awareness about the need to keep the beaches clean. With the help of others, Joying also bought or received donations of gallon-size plastic ice-cream buckets. The buckets were filled with sand, and placed at all public-access areas of the beach. The buckets allowed people to dispose of their cigarettes before hitting the beach. Two years later, Joying says the buckets are full and the beach is nearly free of cigarette debris (残片).2 People who live in or visit Steamboat Springs, Colorado, have Carter Dunham to thank for a new state wildlife refuge that preserves 20 acres of marshland and many species of wildlife. Carter and other students wrote a management plan for the area around the Yampa River. The plan was part of a class project when Carter was a freshman at Steamboat Springs High School. Working with the Colorado Division of Wildlife, Carter and his classmates mapped the area and species of animals living there. They also made decisions about, among other things, where fences and parking areas should be built.3 Barbara Brown and her friends collect oil. It started as a project for their 4H Club after one of the girls noticed her father using motor oil to kill weeds on their farm in Victoria, Texas. They did some research and discovered that oil can contaminate ground water—a real danger, in rural areas, where people live off the water on their land. The girls researched ways to recycle oil and worked with a local oil-recycling company on the issue. Now, the "Don"t Be Crude" program runs oil-collection sites—tanks that hold up to 460 gallons—where people in the community can dispose of their oil.4 Five years ago, 11-year-old Ryan Hreljac was a little boy with a big dream for all the people in Africa to have clean drinking water. His dream began in the first grade when he learned that people were dying because they didn"t have clean water, and that as little as $70 could build a well. "We really take water for granted," says Ryan, of Kemptville, Ontario, in Canada. "In other countries, you have to plan for it." Ryan earned the first $70 by doing extra chores (零工), but with the help of others, he has since raised hundreds of thousands of dollars. His efforts led to the start of the Ryan"s Well Foundation, which raises money for clean water and health-related services for people in African countries and developing countries. Paragraph 4 ______
HackThe first big-name hackers included Steve Wozniak, Bill Gates and Linus Torvalds, all now highly recognizable names behind many of the computer technologies used today. These early hackers had a love of technology and a compelling need to know how it all worked, and their goal was to push programs beyond what they were designed to do. Back then, the word hacker didn"t have the negative connotation it has today. The original hacker ethic, rooted out of simple curiosity and a need to be challenged, appears to be dead.The objectives of early hackers are a far cry from the goals of today"s hackers. The motivation of the new breed of hackers appears not to be curiosity, or a hunger for knowledge, as it used to be. Instead, most of today"s hackers are driven by greed, power, revenge, or some other malicious intent, treating hacking as a game or sport, employing the tools that are readily available via the Internet.The rate of security attacks is actually outpacing the growth of the internet. This means that something besides the growth of the Internet is driving the rise in security attacks. Here are some realities you should know about: Operating systems and applications will never be secure. New vulnerabilities will be introduced into your environment every day. And even if you ever do get one operating system secure, there will be new operating systems with new vulnerabilities—phones, wireless devices, and network appliances. Employees will never keep up with security policies and awareness. It doesn"t matter how much you train and educate your employees. If your employees disregard warnings about the hazards of opening questionable e-mail attachments, how are you going to educate them about properly configuring firewalls and intrusion detection systems for their PCs Managers have more responsibility than ever. And on top of the realities listed above, security managers are being asked to support increasing degrees of network availability and access. There are some good security measures you can take: Employ a layer 7, full-inspection firewall. Automatically update your anti-virus at the gateway, server and client. Keep all of your systems and applications updated. Hackers commonly break into a website through known security holes, so make sure your servers and applications are patched and up to date. Turn off unnecessary network services. Eliminate all unneeded programs. Scan network for common backdoor services—use intrusion detection systems, vulnerability scans, anti-rims protection. Which of the following is NOT in accord with the passage
Earth Angels1 Joying Brescia was 8 years old when she noticed that cigarette butts (烟头) were littering her hometown beach in Isle of Palms, South Carolina. When she learned that it takes five years for the remains of a cigarette to disintegrate (解体), she decided to take action. Joying launched a "No Butts on the Beach" campaign. She raised money and awareness about the need to keep the beaches clean. With the help of others, Joying also bought or received donations of gallon-size plastic ice-cream buckets. The buckets were filled with sand, and placed at all public-access areas of the beach. The buckets allowed people to dispose of their cigarettes before hitting the beach. Two years later, Joying says the buckets are full and the beach is nearly free of cigarette debris (残片).2 People who live in or visit Steamboat Springs, Colorado, have Carter Dunham to thank for a new state wildlife refuge that preserves 20 acres of marshland and many species of wildlife. Carter and other students wrote a management plan for the area around the Yampa River. The plan was part of a class project when Carter was a freshman at Steamboat Springs High School. Working with the Colorado Division of Wildlife, Carter and his classmates mapped the area and species of animals living there. They also made decisions about, among other things, where fences and parking areas should be built.3 Barbara Brown and her friends collect oil. It started as a project for their 4H Club after one of the girls noticed her father using motor oil to kill weeds on their farm in Victoria, Texas. They did some research and discovered that oil can contaminate ground water—a real danger, in rural areas, where people live off the water on their land. The girls researched ways to recycle oil and worked with a local oil-recycling company on the issue. Now, the "Don"t Be Crude" program runs oil-collection sites—tanks that hold up to 460 gallons—where people in the community can dispose of their oil.4 Five years ago, 11-year-old Ryan Hreljac was a little boy with a big dream for all the people in Africa to have clean drinking water. His dream began in the first grade when he learned that people were dying because they didn"t have clean water, and that as little as $70 could build a well. "We really take water for granted," says Ryan, of Kemptville, Ontario, in Canada. "In other countries, you have to plan for it." Ryan earned the first $70 by doing extra chores (零工), but with the help of others, he has since raised hundreds of thousands of dollars. His efforts led to the start of the Ryan"s Well Foundation, which raises money for clean water and health-related services for people in African countries and developing countries. Paragraph 3 ______
The Biology of MusicHumans use music as a powerful way to communicate. It may also play an important role in love. But what is music, and how does it work its magic Science does not yet have all the answers.What are two things that make humans different from animals One is language, and the other is music. It is true that some animals can sing (and many birds sing better than a lot of people). However, the songs of animals, such as birds and whales, are very limited. It is also true that humans, not animals, have developed musical instruments.Music is strange stuff. It is clearly different from language. However, people can use music to communicate things—especially their emotions. When music is combined with speech in a song, it is a very powerful form of communication. But, biologically speaking, what is musicIf music is truly different from speech, then we should process music and language in different parts of the brain. The scientific evidence suggests that this is true.Sometimes people who suffer brain damage lose their ability to process language. However, they don"t automatically (自动地) lose their musical abilities. For example, Vissarion Shebalin, a Russian composer, had a stroke (中风) in 1953. It injured the left side of his brain. He could no longer speak or understand speech. He could, however, still compose music until his death ten years later. On the other hand, sometimes strokes cause people to lose their musical ability, but they can still speak and understand speech. This shows that the brain processes music and language separately.By studying the physical effects of music on the body, scientists have also learned a lot about how music influences the emotions. But why does music have such a strong effect on us That is a harder question to answer. Geoffrey Miller, a researcher at University College, London, thinks that music and love have a strong connection. Music requires special talent, practice, and "physical ability. That"s why it may be a way of showing your fitness to be someone"s mate. For example, singing in tune or playing a musical instrument requires fine muscular control. You also need a good memory to remember the notes (音符). And playing or singing those notes correctly suggests that your hearing is in excellent condition. Finally, when a man sings to the woman he loves (or vice versa), it may be a way of showing off.However, Miller"s theory still doesn"t explain why certain combinations of sounds influence our emotions so deeply. For scientists, this is clearly an area that needs further research. What is the main idea of the passage
微信支付 
支付宝支付