On a cloudless summer day, 13-year-old Charlie Finlayson was ready for a long hike with his father, David.

    Around noon, David was inching his way across a cliff 800 feet above the valley, searching for a line of cracks that would lead them to the top. Charlie stood on a rock a dozen yards to the right as he fed rope to his dad. Reaching up, David missed his step. In the next moment, he heard a sharp crack from above as something larger broke loose.

    When Charlie saw his father sailing through the air alongside the huge rocks that had struck him, he pulled the rope fiercely.

    “Tell me it's OK,” Charlie begged, struggling to control his fear.

    “I think I broke my leg,” David told him. “And we must get off this mountain.” He proposed a plan: Charlie would lower David half a rope length at a time, then lower himself to the same level, and at a new place, begin again.

    As hours passed, they came to the base of the cliff, and David was shaking with cold and exhaustion.

    Worried that David would die if he fell asleep, Charlie kept the conversation going; they talked about past travels. Eventually Charlie allowed himself to catnap, checking on his father each time he awoke. When the sun rose on their camp, Charlie was relieved to see that his father was awake.

    Just after dawn, Charlie headed off on the trail toward the volunteers' cabin 12 miles away, bringing back a helicopter that would carry his father to safety.

    “Charlie's as strong as anyone I know,” says his father, “I'm so proud of him.”

    Wearing a red nose for a day may seem like a strange way to raise money for charity. However, it seems to work in Britain

Red Nose Day (RND) is well-known in the UK. The aim of the day is to raise money for a charity called Comic Relief which helps people in need in Africa and in the UK.

    Red nose?

    Comic Relief was started in 1985 by the scriptwriter Richard Curtis. It's called Red Nose Day, as on this day many people buy a plastic red nose to wear! The money made from selling red noses goes to the charity.

    When is RND?

    Red Nose Day takes place every two years in the spring and is now so famous that many people consider it to be an unofficial national holiday. For example, many schools have non-uniform days. This year Red Nose Day was on 13^th March 2015.

    Money

    Across Britain, people are encouraged to “Do Something Funny for Money”. The money that is collected helps children to go to school, and educates the adults with HIV and AIDS. Comic Relief also works closely with disabled and elderly people to make sure they have equal rights and a better life.

    So, if you are ever in the UK on Red Nose Day, now you know why you may find normal people wearing red noses and doing silly things! It's all for a good cause! If you want to find out more about the day, have a look at the official Read Nose Day website.

    Americans are worried about new technology. They are concerned that machines. Including robots, will take over work now done by humans. These findings come from a new report by the Pew Research Center of Washington DC.

    About 75 percent of Americans questioned by Pew said automation will increase income inequality between the rich and the middle class and the poor. And 64 percent of people expect automation to be so common in America that people will face difficulty finding things to do with their lives.

    Some of the concerns about technology come from a distrust about whether machines will always make the right decision. Many Americans believe humans have better judgment in dealing with complex matters. One example is selecting a person for a job. Three quarters of Americans said they would not want to apply for a job that uses a computer program to choose the most qualified person.

    Most Americans want the government to limit automation, For example, 87 percent support a requirement that all driverless vehicles have a human in the driver s scat who can take control when needed. And 85 percent want to limit machines to mostly doing jobs that are dangerous or unhealthy for humans. And only 25 percent expect more jobs to come from automation. Pew said.

    Mark Zuckerberg, the co-founder of Facebook, spoke last May to graduating seniors from Harvard University in Massachusetts, His talk centered on the uncertain future facing young people. “Our generation will have to deal with tens of millions of jobs replaced by automation like self-driving cars and trucks,” Zuckerberg told the graduates,

    Zuckerberg said young people will have to find projects that will bring both jobs and direct benefits to the people of the world. He said in his speech that 300,000 people worked to put a man on the moon, and millions of people built, the Hoover Dam as well as other great projects over the last 100 years.

    Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws(爪) on its wings when young. They build their homes about 4.6m above the river, an important feature(特征) for the safety of the young. It is called the hoatzin(麝雉).

    In appearance, the birds of both sexes look very much alike with brown on the back and cream and red on the underside. The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.

    Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip. Using these four claws, together with the beak(喙), they can climb about in the bushes, looking very much like primitive birds. When the young hoatzins have learned to fly, they lose their claws.

    During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.

Half a Day

    I walked alongside my father, holding his right hand. All my clothes were new: the black shoes, the green school uniform, and the red cap. They did not make me happy, however, as this was the day I was to be thrown into school for the first time.

    "Why school?" I asked my father. "What have I done?"

    "I'm not punishing you," he said, laughing. "School's not a punishment. It's a place that makes useful men out of boys. Don't you want to be useful like your brothers?"

    I was not convinced. I did not believe there was really any good to be had in tearing me away from my home and throwing me into the huge, high-walled building.

    When we arrived at the gate we could see the courtyard, vast and full of boys and girls. "Go in by you," said my father, "and join them. Put a smile on your face and be a good example to others."

    I hesitated and squeezed his hand firmly, but he gently pushed me from him. "Be a man", he said. "Today you truly begin life. You will find me waiting for you when it's time to leave."

    I took a few steps. Then the faces of the boys and girls came into view. I did not know a single one of them, and none of them knew me. I felt I was a stranger who had lost his way. But then some boys began to glance at me in curiosity, and one of them came over and asked, "Who brought you?"

    "My father," I whispered.

    "My father's dead," he said simply.

    I did not know what to say. The gate was now closed. Some of the children burst into tears. The bell rang. A lady came along and said, "This is your new home. There are mothers and fathers here, too. Everything that is enjoyable and beneficial is here. So dry your tears and face life joyfully."

    Well, it seemed that my misgivings had had no basis. From the first moments I made many friends. I had never imagined school would have this rich variety of experiences.

My, what a big beak you have!

For humans, adapting to climate change will mostly be a matter of technology. More air conditioning, better-designed houses and bigger flood defenses may help to make the effects of a warmer world less harmful. {#blank#}1{#/blank#}In a paper published in Trends & Evolution, a team led by Sara Ryding, a PhD candidate at Deakin University, shows that is already. happening. Climate change is already changing the bodies of many animal species: bigger beaks (喙), limbs and ears.

In some species of Australian parrot, for instance, beak size has increased by between 4% and 10%since 1871. Another study, this time in North American dark-eyed juncos, another bird, found the same pattern.{#blank#}2{#/blank#}.

All that is perfectly consistent with evolutionary (进化) theory, "Allen's rule". Allen suggested it in 1877, holding that warm-blooded animals in hot places tend to have larger body parts than those in temperate (温带的) regions.{#blank#}3{#/blank#}Being richly filled with blood vessels (血管), and not covered by feathers, beaks make an ideal place for birds to get rid of heat.

Ms. Ryding examined museum specimens (标本) to prove that climate change was the cause of an anatomical (解剖学的) changes. All sorts of other factors might have been driving the changes. Her team combined data from different species in different places. They have little in common apart from living on a warming planet.{#blank#}4{#/blank#}.

For now, at least, the increase is small, never much more than 10%{#blank#}5{#/blank#}Since any evolutionary adaptation comes with trade-offs (妥协), it is unclear how far the process might go.

A. Therefore, climate change is the most reasonable explanation.

B. That may change as warming accelerates (加速).

C. Animals will have to rely on changing their bodies or their behaviors.

D. It seems that the future world is going to be hotter than humans are used to.

E. Therefore, the negative effects of a warmer world are visible in these animals' bodies.

F. Such adaptations boost an animal's surface area relative to its body, helping it to release extra heat.

G. Similar trends are seen in mammals, with species of mice and bats evolving bigger ears, legs and wings.