How to be a teenage role model

    In today's world, most teen role models(楷模)are famous people. They appeal to the teenagers a lot with their looks, money and fame. {#blank#}1{#/blank#} If you are a teen out there and you want to inspire your peers(同龄人), here are a few steps that you should follow:

Build confidence.

    People always believe in those who believe in themselves.{#blank#}2{#/blank#} Build on these strengths and let them help you to develop into the kind of role model you want to be.

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    Having a unique character can really draw others to you more than being the same as others. This does not mean that you should give up the same interests you have with your friends, but just try to be a leader rather than a follower of others.

Be humble.

    {#blank#}4{#/blank#} Many people respect those who have accomplished a lot in their lives but are still down to earth. Remember just because you have found your confidence doesn't mean you should look down upon others.

    Play the role you have created for yourself.

    After you have gotten a positive image(形象) of yourself and a good relationship with your peers, stick to it! Be guided by your desire(欲望) to be a role model in everything you do.{#blank#}5{#/blank#}

    Having mastered the above steps, you will start noticing the positive influence you are having on others. Keep trying to better yourself as you continue to inspire others.

A. Develop your own style.

B. Choose your own role model.

C. There is nothing as golden as being humble(谦逊的).

D. Let your entire life be inspirational to others.

E. So build faith in yourself by getting to know your strengths.

F. You should overcome your weaknesses.

G. However, anybody can be a teenage role model if they put their mind to it.

Seal(海豹) seizes raft

    This seal really rocked the boat when he found himself an unusual place to hang out. After the seal came across a boat in the harbor where he lives, he fell inside and wouldn't budge for four days.

“One morning the seal just pulled himself aboard,” says Ed Stubbings, who owns the boat-turned-bed. Probably thinking the boat was a rock, the seal made himself at home. The seal didn't move an inch—--not even to eat or drink.

    Stubbings was a little worried that the 500-pound animal might sink it. Luckily on the fifth day, the seal fell back into the water and swam off.

Alligator(短吻鳄)gets new tail

When Mr. Stubbs the alligator swims through his pool at the Phoenix Herpetological Society, he looks like any other gator—--except that his tail is made of rubber. Mr. Stubbs is the first alligator known to wear an artificial tail.

    Mr. Stubbs was brought to the society nine years ago. “His tail was missing when he arrived,” says President Russ Johnson. Mr. Stubbs couldn't walk or swim properly. “We showed him how to swim in the water,” Johnson says. “But that hurt his back.” Later, the scientists used rubber to build an artificial tail attached to Mr. Stubbs's back legs. “Once we put the tail on him, he walked with ease,” Johnson says.

Dog delivers papers

    Morgan started her “paper route” when she was young. One day as Morgan and her owner Bill set out on a walk, she spotted a rolled-up paper. To Bill's surprise, Morgan grabbed the object in her mouth, walked back to the house, and dropped it on the doorstep. Morgan enjoyed the activity so much that she wanted to deliver every paper she saw on her walks.

Now three-year-old Morgan brings the paper to her owner and neighbors, even in bad weather. “Morgan has a natural instinct(本能) to carry things with her mouth,” dog behaviorist Pat Miller says. “And she feels rewarded by the activity, so she keeps it up.”

    Recent summer temperatures in parts of Australia were high enough to melt asphalt. As global warming speeds up the heat and climatic events increase, many plants may be unable to cope. But at least one species of eucalyptus tree can resist extreme heat by continuing to “sweat” when other essential processes stop, a new study finds.

    As plants change sunlight into food, or photosynthesize (光合作用), they absorb carbon dioxide through pores on their leaves. These pores also release water via transpiration(蒸腾), which circulates nutrients through the plant and helps cool it by evaporation(蒸发). But exceptionally high temperatures are known to greatly reduce photosynthesis—and most existing plant models suggest this should also decrease transpiration, leaving trees in danger of fatally overheating. Because it is difficult for scientists to control and vary trees' conditions in their natural environment, little is known about how individual species handle this situation.

    Ecologist John Drake of the S.U.N.Y. College of Environmental Science and Forestry and his colleagues grew a dozen Parramatta red gum (Eucalyptus parramattensis) trees in large, climate-controlled plastic pods that separated the trees from the surrounding forest for a year in Richmond, Australia. Six of the trees were grown at surrounding air temperatures and six at temperatures three degrees Celsius higher. The researchers withheld (扣留) water from the surface soil of all 12 trees for a month to imitate a mild dry spell, then induced a four-day “extreme” heat wave: They raised the maximum temperatures in half of the pods（three with surrounding temperatures and three of the warmer ones）— to 44 degrees ℃.

    Photosynthesis ground to a near halt in the trees facing the artificial heat wave. But to the researchers' surprise, these trees continued to transpire at close-to-normal levels, effectively cooling themselves and their surroundings. The trees grown in warmer conditions coped just as well as the others, and photosynthesis rates bounced back to normal after the heat wave passed, Drake and his colleagues reported online in Global Change Biology.

    The researchers think the Parramatta red gums were able to effectively sweat — even without photosynthesis — because they are particularly good at tapping into water deep in the soil. But if a heat wave and a severe drought (干旱) were to hit at the same time and the groundwater was exhausted, the trees may not be so lucky, Drake says.

    Other scientists call the finding encouraging. “It's definitely good news,” says Trevor Keenan, an ecologist at Lawrence Berkeley National Laboratory, who was not part of the study. “It would be very interesting to know how this translates to other species,” he adds. Drake hopes to conduct similar experiments with trees common in North America.

    A court battle between German and Israeli archives （档案馆） over Kafka's manuscripts （手稿）raised literary, not just legal, questions. At the time of his death, Kafka hardly seemed like a candidate for world fame. He had a minor reputation in German literary circles. He published a few stories in magazines, but they received little attention.

    After he died in 1924, his friend Max Brod collected, edited and published his works - despite Kafka's own instructions in his will ordering the manuscripts to be destroyed - thus making Kafka a household name after his death. When the Nazis invaded Prague, Brod escaped to Israel, bringing the manuscripts with him. When he died in 1968, his manuscripts, together with those of Kafka, were transferred to his secretary Esther Hoffe.

    Even though Brod asked in his will that the manuscripts be given to a public archive, Hoffe sold some of them abroad for a great deal of money. Many of them eventually made it to the German Literature Archive. In 2007, she died and left her properties to her daughters. Then the case about the manuscripts started after the death of one of her daughters. The court said Hoffe had no rights, and could not have any such rights for the documents Brod took from Kafka's apartment after his death.

    Ironically, Kafka's stubborn homelessness and non-belonging in his works were accurately what ensured his place at the center of 20^th-century literature. W. H. Auden proposed that Kafka was to the cold, absurd 20^th century what Dante or Shakespeare had been to their times - the writer who captured the spirit of the age. That is why, in the end, it hardly matters whether Kafka's manuscripts stay in Germany or Israel. What counts is that we are all living in Kafka's world.

    Taking your pulse during physical activity allows you to measure how hard you are exercising. You should exercise to stay within your target heart range.

    Increasing your heart rate is a key part of exercise but it is important that your heart rate is not too high or too low. If you are a beginner, you should also be able to breathe comfortably while exercising. This will ensure that you are exercising at a level that is safe and effective for your body.

    The chart below illustrates target heart rate ranges for exercise based on the maximal heart rate for selected ages. Here are the steps for using the chart: