Many people think of guys as being carefree when it comes to their appearance . But in fact , a lot of guys spend plenty of time in front of the mirror . They care just as much as girls do about their body image.

    Body image is a person's opinions and feelings about his or her own body and physical appearance. {#blank#}1{#/blank#} You appreciate your body for its capabilities and accept its imperfections.

{#blank#}2{#/blank#} Here are some ideas:

    Recognize your strengths. Different body types are good for different things. What does your body do well? Maybe your speed, strength, or coordination makes you better than others at a certain sport. That may be basketball, table tennis, mountain biking , dancing , or even running . Or perhaps you have non-sports skills, like drawing, painting , singing , playing a musical instrument , writing , or acting . {#blank#}3{#/blank#}

    Exercise regularly. Exercise can help you look good and feel good about yourself. Good physiques（体形）don't just happen . {#blank#}4{#/blank#} A healthy habit can be as simple as exercising 20 minutes to 1 hour three days a week . Working out can also lift your spirits .

    Respect your body ! Practicing good habits – regular showering ; taking care of your teeth , hair , and skin ; wearing clean clothes , and so on – can help you build a positive body image .

    {#blank#}5{#/blank#} Your body is just one part of who you are . Your talent for comedy , a quick wit（智慧）, and all the other things make you unique . So try not to let small imperfections take over.

A. Be yourself .

B. Just explore talents that you feel good about .

C. So , what can you do to develop a positive body image ?

D. They take hard work , regular workouts , and a healthy diet .

E. Use this as an opportunity to discover what you're good at .

F. The good news is that self-image and body image can be changed .

G. Having a positive body image means feeling satisfied with the way you look.

    Amazon is breaking into physical retail(零售) in a new way. The online retail giant revealed a new kind of physical store concept in a video published on Monday.

    The store, called Amazon Go, doesn't work like a typical Walmart or supermarket. Instead, it's designed so that shoppers will use an app, also called Amazon Go, to automatically add the products that they plan to buy to a digital shopping cart by scanning a QR code. They can then walk out of the building without waiting in a checkout line because Amazon will charge their Amazon account and send them a receipt(收据).

    The first Amazon Go store is located in Seattle, where Amazon is headquartered. For years, there have been rumors the e­commerce company would expand its dominance(主导地位) from digital to physical shopping. Amazon began experimenting with physical bookstores a year ago, but Amazon Go may mark its boldest(大胆的) bet on physical ones yet. By removing much of the staff needed to operate a store, Amazon keeps costs lower than traditional competitors. It's also in a strong position to bring together data on its customers' shopping habits online and offline to make better suggestions in all situations.

    However, the company could be thought of as being a threat to some of the 3.4 million Americans who work as cashiers, according to the Bureau of Labor Statistics. And Donald Trump repeatedly criticized Amazon and its founder Jeff Bezos, “He's using the Washington Post for power so that the politicians in Washington don't tax Amazon like they should be taxed.”

    “Four years ago we asked ourselves: what if we could create a shopping experience with no lines and no checkout? Could we push the boundaries of computer vision and machine learning to create a store where customers could simply take what they want and go?” The company says on an informational page about Amazon Go. For now, Amazon is starting slow. The Amazon Go is only open to Amazon employees in our Beta program, and is scheduled to open to the public in 2017.

    Getting late for a meeting, I need to run,” he said, as he put his coat over the shoulder and rushed out of the house. As he drove away, she came running down the stairs two at a time. “Wait, wait,” she shouted, but he had already left.

    “He forgot to give me a goodbye kiss,” she said in a low, sad voice that shook under the weight of the hurt. She called him and said, “You left without giving me a kiss.” “I am sorry, sweetheart,” he said, his voice shaking. “It is okay,” she said, trying to be all grown-up as she cut the call.

    She ate her breakfast quickly, put on her shoes, picked up her school bag and started to walk out of the door. Her shoulders were slumped(耷拉) and her eyes were filled with tears. As she climbed down the steps, a car came to a stop outside the house. He got out of the car. She ran to him.

    “I am sorry I forgot,” he said, as he picked her up and hugged her. She said nothing. Her jaw ached from smiling.

    Fifteen years later, no one would remember he was late for a meeting, but a little girl would never ever forget that her father drove all the way back home just to kiss her goodbye!

    What is more important, work or family? Some parents always put work before everything. But some put family first. Remember, the company will run the same without you and your colleagues(同事) may forget you soon after you leave. But you are everything to your children.

    People typically wash their hands seven times a day in the United States, but they do it at a far higher temperature than is necessary to kill germs, a new study says. The energy waste is equivalent to the fuel use of a small country. Amanda R. Carrico, a research assistant professor at the Vanderbilt Institute for Energy and Environment in Tennessee, told National Geographic that hand washing is often “a case where people act in ways that they think are in their best interest, but they in fact have inaccurate beliefs or outdated perceptions.”

    Carrico said, “It's certainly true that heat kills bacteria, but if you were going to use hot water to kill them it would have to be a way too hot for you to tolerate.”

Carrico said that after a review of the scientific literature, her team found “no evidence that using hot water that a person could stand would have any benefit in killing bacteria.” Even water as cold as 40°F (4.4℃) appeared to reduce bacteria as well as hotter water, if hands were scrubbed, rinsed(冲洗)and dried properly.

    Using hot water to wash hands is therefore unnecessary, as well as wasteful, Carrico said, particularly when it comes to the environment. According to her research, people use warm or hot water 64 percent of the time when they wash their hands. Using that number, Carrico's team calculated a significant impact on the planet.

    “Although the choice of water temperature during a single hand wash may appear unimportant, when multiplied by the nearly 800 billion hand washes performed by Americans each year, this practice results in more than 6 million metric tons of CO2 equivalent emissions annually,” she said.

    The researchers published their results in the July 2013 issue of International Journal of Consumer Studies. They recommended washing with water that is at a “comfortable” temperature, which they noted may be warmer in cold months and cooler in hot ones.

Animals are humans' best friends. Here we will know about some of those interesting friends.
       Gouldian Finch

Native to Australia, the Gouldian finch has special green, yellow, red and black markings. For the males (雄性), the part between the neck and the stomach is bright purple, while for females, this part is pale purple. We all Have to agree that nature has created some really great animals with the smallest of details.

Keel-Billed Toucan

It is the very same crazy bird from the movie Rio, also known to be the "rainbow billed toucan". The bird has a black body and a yellow face. The color of its bill (喙) is a combination of green, yellow, orange and red, and that's how the name rainbow billed toucan came from. It is rarely seen alone. It travels in small groups of about six to twelve individuals.

The Oriental Dwarf Kingfisher

It is a great tiny bird commonly found in South Asia. This bird is the most brightly colored and the smallest kingfisher species. Its special feature is the orange with bluish-purple head, which can be easily recognized. The throat is white with bright orange colored lines at the bottom. It is a pretty and small bird.

Poison (毒) Dart Frog

It is a kind of very beautiful creature. The bright colors of the poison dart frog send a warning to its natural enemies about its poison. Found in South America, with some of the brightest shades of yellow, copper, red, green and blue, this frog is among those very animals that you have to watch out in the Amazon Rainforest.

D

With the completion of the Human Genome（基因组）Project more than 20 years ago, and the discovery of the double helix structure of DNA enjoying its 70th birthday last year, you might assume that we know how life works. Think again!

Evolution has a 4bn-year head start on us. However, several aspects of the standard picture of how life works-the idea of the genome as a blueprint, of genes as instructions for building an organism, of proteins as precisely tailored molecular（分子）machines and more-have wildly reduced the complexity of life. 

In the excellent book How Life Works, Philip Ball explorers the new biology, revealing life to be a far richer, more delicate affair than we have understood. Ball explains that life is a system of many levels-genes, proteins, cells, tissues, and body modules-each with its own rules and principles, so there is no unique place to look for an answer to it. 

Also, How Life Works is a much more appealing title than the overused question of "What is life?". We should be less concerned with what a thing is, and rather more focused on what a thing does. Defining a living thing implies an unchangeable ideal type, but this will run counter to the Darwinian principle that living things are four-dimensional, ever changing in time as well as space.

But it's an idea that is deeply rooted within our culture. Ball points out that we rely on metaphors（比喻）to explain and explore the complexities of life, but none suffice. We are taught that cells are machines, though no machine we have invented behaves like the simplest cell; that DNA is a code or a blueprint, though it is neither; that the brain is a computer, though no computer behaves like a brain at all.

Ball is a terrific writer, pumping out books on incredibly diverse subjects. There's a wealth of well-researched information in here, and some details that are a bit chewy for the lay reader. But the book serves as an essential introduction on our never-ending quest to understand life.