If you've ever owned a chimney, you know that it can get pretty dirty. There's a whole lot of soot(烟灰) that gets stuck on the inside. That stuff has to get cleaned, or you could have a serious fire risk. While nowadays we have easier ways of doing this dirty job, in the way back days somebody used to climb up the chimney and clean all that soot. And the thing is, not just anybody could do it.

    You had to be really small to fit up in the chimney, so they used to give the task to kids – some as young as four or five years old. They worked for their boss known as a master-sweep. They were often covered in soot, and were very likely to get burned. They often developed what became known as soot wart, a form of cancer.

    Are your unfairness bells ringing? William Blake's certainly were. The physical dangers and widespread unfairness of the chimney-sweeping job really stuck in his throat, so much so that he wrote not one, but two poems called “The Chimney Sweeper”.

    The first poem (the one we're discussing here)was published in 1789 in a book called Songs of Innocence. These little poems took children and the joys of childhood innocence as their subject. As you've probably guessed by now, many of the poems in Songs of Innocence, like “The Chimney Sweeper”, are about the ways in which childhood innocence is destroyed by unkind old adults. For Blake, innocence is, in many ways, a total joke. It doesn't exist, because it's always taken away by the realistic world – chimney-sweeping, death, poverty, etc.

    What does a five-year-old chimney sweeper in 18th-century England have to do with you? More than you might think. It is reported that 150 million kids are in child labor in developing countries. Many of them work long hours and face dangerous health risks. Like Blake's chimney sweeper, these kids are not even given a chance at innocence because experience keeps getting in the way.

The Winner's Guide to Success

    Do you know what makes people successful? To find out the answers, an American scholar recently visited some of the most successful people around the world. {#blank#}1{#/blank#}

    Be responsible for yourself

    Sometimes you may want to blame others for your failure to get ahead. In fact, when you say someone or something outside of yourself is stopping you from making success, you're giving away your own power. {#blank#}2{#/blank#}

    Write a plan

    It is very difficult to try to get what you want without a good plan. It is just like trying to drive through strange roads to a city far away.{#blank#}3{#/blank#} Without this "map", you may waste your time, money and also your energy; while with the "map" you'll enjoy the "trip" and get what you want in the shortest possible time.

    Be willing to pay the price

    {#blank#}4{#/blank#} So you must be ready to work hard — even harder than you have ever done. If you are not willing to pay the price, you won't get anything valuable.

    {#blank#}5{#/blank#}     

    It seems to us that everyone knows this. But it is easier said than done. When you are doing something, you must tell yourself again and again: Giving up is worse than failure because failure can be the mother of success, but giving up means the death of hope.

A. Never give up.

B. Nothing is easy to get.

C. A good plan is like a map to you.

D. Here are some keys to success that they give.

E. Some people achieve success much later in life.

F. You're saying, "You have more control over my life than I do."

G. Someone else's opinion of you doesn't have to become your reality.

    A global cyberattack, which is considered the biggest cyberattack ever, is spreading quickly and widely.{#blank#}1{#/blank#}

    What the attack does

    Cyber bad guys have spread ransomware(勒索软件), known as WannaCry, to computers around the world. It locks down all the files on an infected computer. The hackers then demand $300 in order to release control of the files.{#blank#}2{#/blank#}

    How it happened

    WannaCry takes advantage of a vulnerability(弱点) in Microsoft Windows. Microsoft released a security patch for the vulnerabilities in Marclf. {#blank#}3{#/blank#} Playing with fire finally caught up with the victims.

    Microsoft requires Windows 10 customers to automatically update their computers, but some people with older PCs disabled automatic updates.

    {#blank#}4{#/blank#}

    The attack has been found in 150 countries, affecting 200,000 computers, according to Europol, the European law enforcement agency. FedEx, Nissan, and the United Kingdom's National Health Service were among the victims. In the U.K., hospitals were crippled by the cyberattack, which forced operations to be canceled and ambulances to be diverted.

    Who is vulnerable

    {#blank#}5{#/blank#}Microsoft said it had taken the "highly unusual step" of releasing a patch for computers running older operating systems including Windows XP, Windows 8 and Windows Server 2003. So even people with older computers should update them.

    Apple's Mac computers were not targeted by this ransomware attack. Bad guys generally target Windows far more than Apple's operating system because there are vastly more computers running Windows around the world.

A. When it will be solved

B. How widespread the damage is

C. That's why it's called ransomware.

D. The hackers remain anonymous for now.

E. Here is a super-simple explanation of what's going on.

F. Anyone who hasn't updated their windows PC recently is easy to attack.

G. But many corporations don't automatically update their systems.

    Humans and many other mammals have unusually efficient internal temperature regulating systems that automatically maintain stable core body temperatures（核心体温）in cold winters and warm summers. In addition, people have developed cultural patterns and technologies that help them adjust to extremes of temperature and humidity（湿度）.

    In very cold climates, there is a constant danger of developing hypothermia（低体温）, which is a life threatening drop in core body temperature to below normal levels. The normal temperature for humans is about 37.0℃. However, differences in persons and even the time of day can cause it to be as much as 6℃ higher or lower in healthy individuals. It is also normal for core body temperature to be lower in elderly people. Hypothermia begins to occur when the core body temperature drops to 34.4℃. Below 29.4℃, the body cools more rapidly because its natural temperature regulating system usually fails. The rapid decline in core body temperature is likely to result in death. However, there have been rare cases in which people have been saved after their temperatures had dropped to 13.9—15.6℃. This happened in 1999 to a Swedish woman who was trapped under an ice sheet in freezing water for 80 minutes. She was found unconscious, not breathing, and her heart had stopped beating, yet she was eventually saved despite the fact that her temperature had dropped to 13.7℃.

    In extremely hot climates or as a result of uncontrollable infections, core body temperatures can rise to equally dangerous levels. This is hyperthermia. Life threatening hyperthermia typically starts in humans when their temperatures rise to 40.6—41.7℃. Only a few days at this extraordinarily high temperature level is likely to result in the worsening of internal organs and death.

    Experts say there are about 6, 500 languages spoken throughout the world. But the United Nations estimates that about half of these languages are in danger of disappearing.

    One non-profit organization seeking to save world languages is a New York-based group called Wikitongues. Officials from Wikitongues say the organization has a simple goal: to provide the tools and support that people need to save their languages.

    Udell is the co-founder of Wikitongues. He said when a language disappears, many other things can go away as well. For example, parts of a community's culture, knowledge and identity can also be lost. Because of this. Udell believes the process of bringing languages back must be done by community members themselves, “from the ground up,” he said.

    “There is no way an outside organization can save someone's language for them.”

    Wikitongues was launched in 2016 as an open internet collection of world languages. The self-described “community” is operated by volunteers from around the world. The collection is in the form of language videos that people add to the Wikitongues website.

    There are currently more than 400 languages and dialects represented on Wikitongues' YouTube channel. Udell says more than 1,500 people from 70 different countries have added videos to the system.

    “We have people from India who record dozens of languages, which is beyond their own.” he said.

    One of Wikitongues'volunteers is Kolokwe, who lives in Namibia. His native language is Subiya, however, he does not get the chance to speak his native language every day. Like many other educated people from his area, he speaks a lot of English and Afrikaans.

    Kolokwe is hoping his involvement with Wikitongues call help keep Subiya and other African languages from going extinct. He wants the world to know about his language. But his goal goes beyond just sharing his language with others through video. He is also working to create a dictionary and language teaching materials that can be used in schools.

    Why Stand in Line on Black Friday?

    Standing in line is a pain. At the post office. At the box office. At a restaurant.{#blank#}1{#/blank#}The first spot outside some Best Buy stores is usually claimed (认领) weeks in advance, often by a person in a tent. Shoppers at Walmart will print out maps of the store, with circles around their primary targets.{#blank#}2{#/blank#}

    "These queues are quite different than the usual annoying ones we come across day to day at the ATM or in the subway," said Richard Larson, a professor at MIT who has spent years studying line behavior. "Once a year," he said, "the lines are exciting. They're the kind you might tell your grandchildren about."{#blank#}3{#/blank#}Billie LeClere, 45, was first in line on Thursday at Walmart in Manchester, Iowa. She said she was a regular Black Friday shopper. But this year, she came with a specific purpose: to get a good deal on a new TV. She and her husband had recently separated, and he had taken the old TV earlier that day. "The marriage died, not the TV," she said.{#blank#}4{#/blank#} "It's going to be nice to have something that's newer-and it's mine, not his."

    {#blank#}5{#/blank#}The following are two of the typical results. The "gotta have it" atmosphere makes people more anxious. Sometimes the behaviour of the queue turns violent. Therefore，lines test patience，personal space especially on Black Friday, when the crowds can be overwhelming (势不可挡的).

A. Shoppers are excited to buy gifts.

B. But on Black Friday, it's an experience.

C. Moreover, the crowds are queuing for good deals.

D. Many families are queuing to chat with each other.

E. The experience gave her a sense of accomplishment.

F. They are trying to turn the experience into an adventure.

G. The behaviour of people in lines has inspired decades of research.