Science has a lot of uses. It can reveal (揭示) laws of nature, cure diseases, make bombs, and help bridges to stand up. Indeed science is so good at what it does that there's always a temptation (诱惑) to drag it into problems where it may not be helpful. David Brooks, author of The Social Animal, The Hidden Sources of Love, Character, and Achievement, appears to be the latest in a long line of writers who have failed to resist the temptation.

    Brooks gained fame for several books. His latest book The Social Animal, however, is more ambitious and serious than his earlier books. It is an attempt to deal with a set of weighty topics. The book focuses on big questions: What has science revealed about human nature? What are the sources of character? And why are some people happy and successful while others aren't?

    To answer these questions, Brooks surveys a wide range of subjects. Because of this, you might expect the book to cover a variety of facts. But Brooks has structured his book in an unusual, and perhaps unfortunate way. Instead of introducing scientific theories, he tells a story, within which he tries to make his points, perhaps in order to keep the reader's attention. So as Harold and Erica, the hero and heroine in his story, live through childhood, we hear about the science of child development and as they begin to date we hear about the theory of sexual attraction. Brooks carries this through to the death of one of his characters.

    On the whole, Brooks's story is acceptable if uninspired. As one would expect, his writing is mostly clear and, to be fair, some chapters stand out above the rest. I enjoyed, for instance, the chapter in which Harold discovers how to think on his own. While Harold and Erica are certainly not strong characters, the more serious problems with The Social Animal lie elsewhere. These problems partly involve Brooks's attempt to translate his tale into science.

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    Cold weather has a great effect on how our minds and our bodies work. Maybe that is why there are so many expressions that use the word cold. For centuries, the body's blood has been linked closely with the emotions. People who show no human emotions or feelings, for example, are said to be cold –blooded. Cold –blooded people act in merciless ways. They may do cruel things to others, and not by accident. For example, a newspaper says the police are searching for a cold-blooded killer. The killer murdered someone, not in self-defense. He seemed to kill with no emotion.

    Cold can affect other parts of the body, the feet, for example. Heavy socks can warm your feet, if your feet are really cold. But there is an expression—to get cold feet –that has nothing to do with cold or your feet. The expression means being afraid to do something you had decided to do. For example, you agree to be president of an organization. But then you learn that all the other officers have given up the position. All the work of the organization will be your responsibility. You are likely to get cold feet about being president when you understand the situation.

    Cold can also affect your shoulder. You give someone the cold shoulder when you refuse to speak to them. You treat them in a distant, cold way. The expression probably comes from the physical act of turning your back toward someone, instead of speaking to him face-to-face. You may give a cold shoulder to a friend who has not kept a promise he made to you. Or, to someone who has lied about you to others.

    A cold fish is not a fish. It is a person. But it is a person who is unfriendly, unemotional and shows no love or warmth. A cold fish does not offer much of himself to anyone.

    Out in the cold is an expression often heard. It means not getting something that everybody else got. A person might say that everybody but him got a pay raise. He was left out in the cold. And it is not a pleasant place to be.

    There was great excitement on the planet of Venus (金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs.

    The satellite was directed into an area known as Manhattan (曼哈顿). Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information about the feasibility of a manned flying saucer (飞碟) landing on Earth. A press conference was held at the Venus Institute of Technology.

“We have come to the conclusion, based on last week's satellite landing,” Professor Zog said, “that there is no life on Earth."

    “How do you know this?” the science reporter of the Venus Evening News asked.

    "For one thing, Earth's surface in the area of Manhattan consists of solid concrete (混泥土) and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive.”

    “Are there any other sources of danger that you have discovered in your studies?”

    “Take a look at this photo. You see this dark black cloud staying over the surface of Earth? We don't know what it is made of, but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there. Over here you will notice what seems to be a river, but the satellite findings indicates it is polluted and the water is unfit to drink.”

    “Sir, what are all those tiny black spots on the photographs?”

    “We're not certain. They seem to be metal objects that moves along certain roads. They give out gases, make noise and keep crashing into each other.”

    “Professor Zog, why are we spending billions and billions of Zilches to land a flying saucer on Earth when there is no life there?”

    “Because if we Venusians can learn to breathe in the Earth atmosphere, then we can live anywhere.”

    Being deaf in a hearing world can lead to painful feelings of isolation (孤独).

    Waitress Kelsey recently shared an experience on a social media sharing site that quickly zoomed (陡直上升) to the top of the" front page of the Internet". In her brief post, Kelsey explained that she waits tables at a bar during the evenings, and one night she noticed a deaf man sitting alone in her section (区域).

    When Kelsey isn't working at the bar she makes a good hourly pay doing sign language interpretation (翻译), so she sensed an opportunity to use her skill to make this customer feel a little less alone in the world. She approached his table and began chatting with him in sign language.

    When the table next to his noticed their silent conversation they asked Kelsey how long she'd been signing. They had a brief conversation about her goal of becoming certified (合格的) to interpret sign language in a medical or mental health setting. She didn't think much about the whole exchange until the customers had left the restaurant and she was tidying up the tables. There, on the table of the customers who'd seen her American sign language conversation with the deaf man, was a handwritten note on the receipt.

    "Thank you for what you do; it absolutely matters!" the note said. "Good luck with finishing your degree!" Not only that, but they'd left her a $100 tip.

    Kelsey was moved by the kind note, especially because she wasn't doing anything out of the ordinary. To her, she was just conversing with someone in a language that only they understood. Yet to the deaf man and the people seated next to him she'd bridged a gap and helped someone who probably feels lonely a lot of the time.

    Kelsey shared the note on the Internet to spread more love and light in the world.

After building some "standard"cargo bikes， {#blank#}1{#/blank#} ，this time with something very special. I wanted to build an ideal cargo bike combining the stability of a three-wheeler with the possibility to change directions like being on two wheels. 
The first step was to do extensive research {#blank#}2{#/blank#} .An incredible source of technical inspiration was the online Tilting Group.Although primarily-concerned with tilting（倾斜） concepts of engine driven constructions，the group is surely the best place to find information about constructing a tilter. 
    After researching and outlining a few ideas，I grabbed some parts and started with a very simple prototype（雏形）.Building such a vehicle needs a high degree of accuracy，which was not the case with my prototype {#blank#}3{#/blank#} .So I made a few more sketches（草图），which led to an improved version of the driving and tilting mechanism. 
    Then I started building the tricycle.Building the structure was quite straightforward.As usual I took an old bike apart for the back triangle and then added the front part.After adding a cargo basket to the structure， {#blank#}4{#/blank#} . 
    Now came the hard part：the driving mechanism.I started with the usual design used for two-wheel cargo bikes，but it took me quite some time to figure out how to pass the driving force to both wheels without allowing the whole thing to lock itself in any angle {#blank#}5{#/blank#} ， but I'm sure I can use the knowledge I gained one way or another. 

A.The project was demanding 
B.I decided to get my hands dirty again 
C.I fell in love with three-wheeler bikes 
D.I put all the parts together for the first time 
E.It took me quite some time to understand the ideas behind it 
F.The engine driven constructions were always the most difficult to fix 
D.The consequence was that the driving mechanism locked itself occasionally

If there was one good thing to come out of lockdowns, it was improve book sales and rates of reading, especially among children. A survey of 70,000 children and young people by the National Literacy Trust, however, has found this gain is now gone: figures are now equal to just before the pandemic (疫情), when the trust recorded the lowest levels of reading enjoyment (just under 50%) since it first asked the question 17 years ago. Another study of 8,000 five-to eight-year-olds at the same time found that nearly one in five did not have a book at home.

These questions are not about basic literacy (读写能力) but about the habit of reading: the children surveyed spoke of books giving them subjects to talk about; of entertainment and information; of reading helping them to understand people unlike themselves; of finding in books a place of escape; of aid in dealing with difficulty. "It helps me in learning about what I'm feeling. That .That is because I have a hard time expressing my emotions and would rather not bother anyone," as one child put it.

Children who read at home are six times more likely to be able to read above expected levels, while one study of 160,000 adults from 31 countries found children whose homes held least 80 books, books, but whose schooling ended at 13 or 14, were as literate, numerate and technologically intelligent in adulthood as university graduates who grew up with only a few books. Another found these children also went on to earn more.

It is not that most parents and carers don't understand this. A reason often cited for the lack of books at home is the cost of living. Almost a fifth of Britain's public libraries have closed in 10 years, while one in eight primary schools in England, rising to one in four in disadvantaged communities, do not have a s, do not have a library or designated (指定的) reading space. Compared with other problems this country faces, providing varied reading materials relatively straightforward to fix. We owe it to children to do so.