The world itself is becoming much smaller by using modern traffic and modern communication means. Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.

    Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.

    Air pollution is still the most serious. It's bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily.

    Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air.

    Pollution by carbon dioxide is now the most dangerous kind of air pollution. It is caused by heavy traffic. It is true that if there are fewer people driving, there will be less air pollution.

    The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in population at the same time.

    Libraries are doing well in the digital times. Here are some of the most awesome examples.

    ⒈Freiburg University Library, Germany

    The original library of the Freiburg University was rebuilt in 2015 following the project of Degelo Architects. The new building has 41,000 square meters and looks like a cut diamond. Inside, there are 1,200 workspaces in four reading rooms plus 500 work areas. The library offers in the basement a system of automated checkout machines and 700,000 volumes that can be borrowed.

    ⒉Microlibrary at Taman Bima, Indonesia

    This wonderful little public library is located in a Kampung neighborhood near the Bandung airport, Indonesia. The building was designed by the Bandung office of SHAU architect studio. It has 160 square meters and is built upon a preexisting stage that was already used by the local community for events and gatherings. The Bima public library is the first of a series of similar microlibraries that are planned to be built across Indonesia.

    ⒊Public Library of Constitución, Chile

    The city in Constitución, Chile, was devastated by 8.8 degrees earthquake in 2010. The new public library, designed by Sebastian Irarrázaval, is a part of the initiative to rebuild the city. Constitución is one of the biggest clusters of wood production in Chile. This heritage is reflected in the construction of this post-disaster library. It's made almost entirely of wood, and only the firewalls are done with exposed poured concrete. The internal area of the library exceeds 350 square meters. The building was opened in 2015, five years after the earthquake.

    ⒋LiYuan Library, China

    Built in 2011 in a small village of Huairou on the outskirts（郊区）of Beijing, this beautiful nature-inspired library was designed by Li Xiaodong. The 175-square-meter building's interior is spatially diverse by using steps and small level changes to create distinct places. The wooden sticks temper the bright light and spread it evenly throughout the space to give a perfect reading environment. The library closes at dusk because there is no electricity in it.

    Zak's grandfather, Stan, was very famous. Why? Because he had a very, very, very long white beard(胡子).

    One day, Zak asked his grandfather, "When you sleep, do you put your beard over or under the quilt(被子)?" "I'm not sure. I never care about that," said his grandfather. "I'll look tonight."

    Stan got into bed that night and pulled up the quilt. Then he remembered his grandson's question. Aha! His beard was under the quilt. But wait. Did that feel right?

    He lifted his beard from under the quilt and put it above it. This also didn't feel right. So he put the beard under the quilt again. But he soon felt it would be better if it were out. The beard went in and out—first under the quilt, then over it, under, over, all night long.

    Stan spent a sleepless night. In the morning, he was so tired and unhappy that he cut his long beard right off!

    Stan's wife was so happy. She advised Stan to cut that beard off many times, but he never did it. Now a simple question made him do that.

根据上述内容，判断下列句子正误。

    Chocolate could soon be a thing of the past, after scientists warned that the cacao plant, from which chocolate is made, could be extinct within 32 years.

    Over half of the world's chocolate comes from just two countries in West Africa­Cote d'Ivoire and Ghana­where the temperature, rain, and humidity provide the perfect conditions for cacao to grow. But the threat of rising temperatures over the next three decades caused by climate change, is expected to result in a loss of water from the ground, which scientists say could upset this balance.

    According to the related data, a temperature rise of just 2.1℃ could spell an end for the chocolate industry worldwide by 2050. Farmers in the region are already considering moving cacao production areas thousands of feet uphill into mountainous area­much of which is currently preserved for wildlife. But a move of this scale could destroy ecosystems that are already under threat from illegal farming and deforestation.

    Part of the problem, according to Doug Hawkins, is that cacao farming methods have not changed for hundreds of years. "Unlike other tree crops that have benefited from the development of modern, high yielding strains and crop management techniques to realize their genetic potential, more than 90% of the global cocoa crop is produced by small farms with unimproved planting material," he said. "It means that we could be facing a chocolate decrease of 100,000 tons a year in the next few years."

    Now scientists at the University of California at Berkeley have teamed up with American candy company Mars to keep chocolate on the menu. Using the controversial(有争议的) gene-editing technology known as CRISPR they are trying to develop a type of the cacao plant capable of surviving in dryer, warmer climates. If the team's work on the cacao plant is successful, it could remove the need for farmers in West Africa to relocate to higher ground, and perhaps even allow cacao to be grown elsewhere in the world.

The next time you attend a social function or go to a place where people meet and interact, take note of the number of people who have adopted the same gestures and posture—the way you sit or stand--of the person with whom they are talking. This "carbon copying" is a means by which one person tells the other that he is in agreement with his ideas and attitudes. By this method, one is non-verbally (非语言的) saying to the other, "As you can see, I think the same as you, so I will copy your posture and gesture."

    This unconscious (无意识地) mimicry is quite interesting to observe. Take, for example, the two men standing at the hotel bar. They have mirrored each other's gestures and it is reasonable to assume that they are discussing a topic upon which they have the same thoughts and feelings. If one man uncrosses his arms and legs or stands on the other foot, the other will follow. If one puts his hand in his pocket the other will copy and this mimicry will continue for as long as the two men are in agreement.

    This copying also occurs among good friends or people of the same social position and it is common to see married couples walk, stand, sit and move in very similar ways. People who are strangers, however, try hard to avoid holding mutual(相互的) positions. The significance of carbon copying can be one of the most important non-verbal lessons we can learn, for this is one way that others tell us that they agree with us or like us. It is also a way for us to tell others that we like them, by simply copying their gestures.

    If an employer wishes to develop immediate friendliness and create a relaxing atmosphere with an employee, he needs to copy the employee's posture to achieve the end. Similarly, an up-and-coming employee may be seen copying his boss's gestures in an attempt to show agreement. Using the knowledge, it is possible to influence a face-to-face encounter by copying the positive gestures and postures of the other person. This has the effect of putting the other person in a receptive and relaxed frame of mind and he can "see" that you understand his point of view.

    A few weeks ago, a 71-year-old man pulled his car to the roadside in Northwest Portland and stopped. He rolled down the window, turned off the engine and stared at a house.

    The place, distinguished by three gables, is partially hidden by hedges and trees. Most people who pass by would never notice it. And if they did give it a glance, they'd probably think it's a nice house in a nice neighborhood. Nothing more.

    The house, in the 2500 block of Northwest Westover Road, is known as the Bessie & Louis Tarpley House. Built in 1907, it's listed on the National Register of Historic Places.

    The current owner is Barbee Lyon, 79.

    He and his first wife took possession in 1975. When they divorced, he bought out her share.

    A retired lawyer, Lyon learned Louis Tarpley, the home's first owner, had also been a Portland lawyer. Setbacks in Tarpley's life led to the house auction(拍卖) in the late 1920s.

    "I'm only the fifth owner of the home," Lyon said.

    A previous owner was Frank Masco.

    He and his wife, Esther, and their nine children had lived across town in a tiny house needing constant repairs. In the mid-1950s, the elder Masco wanted to move to a bigger house and one closer to work. A docker (码头工人), he was on-call 24 hours a day and had to quickly get to the Willamette River docks.

    He found a home on Westover Road. At the time, many people wanted to live in new construction in the suburbs. The Westover house was offered at a deep discount.

    And later the family moved on several times, finally living in Vancouver.

    One Sunday in July 2019, Charley Masco drove to Portland for an appointment at a computer store. When it ended, he traveled the familiar route to Westover Road, pulled over and looked at that home.

    He decided to do something bold. He got out of his car and walked up the steps and rang the doorbell. He waited. No response. Nervous, he thought it was a mistake to do this and considered turning around and walking back to his car.

Barbee Lyon opened the door and saw a stranger.

    "I'm not selling anything," Masco said quickly. "I just want you to know I once lived here."

    Lyon opened the door wide.

    "Come in."

    And for the first time since 1966, Masco stepped into his childhood home.

    Every room looked as Masco had remembered it: The built-in china hutch in the dining room, the hanging lights above the table and, in the kitchen, a massive wood-burning stove where his mother used to cook family meals. It was as if he had walked into his own museum.

    Lyon told Masco he'd never done major structural remodeling, which meant Masco knew his way around the home.

    It was as if he had never left.

    There, on the top floor, was the window he and his siblings quietly opened to sneak out at night and return before their parents knew they were gone. The loft where friends daydreamed about the future. The living room – no TV ever allowed – where the family gathered to share music, play cards or just talk with each other.

    Then they all walked to the basement.

    In the far corner, Masco saw his father's old wooden workbench. And above it, baby food jars. Masco had forgotten about them.

    He explained that his father had nailed lids from the jars to a rafter, filling the glass with different size screws, nuts and bolts, and then screwing the jars back into the lids to give him easy access while working.

    Masco thought about his father, his mother and three of his siblings who have died. He thought about his father, tinkering in the basement, while his mother was in the kitchen preparing dinner.

    He thought about the 71-year-old man he was and the boy he had once been.

    Kruse, Lyon's wife, reached up and unscrewed a jar. She handed it to Masco, believing it belonged to this stranger.

    Masco thanked her.

    He clutched the small bottle to his chest.

    "My dad," he said quietly. "This is my dad."