People can often see a talking parrot on a TV show, in a movie, or even in someone's home. The parrot has learned {#blank#}1{#/blank#} (copy) sounds that people make. Dolphins, bats, and some other animals also copy sounds. Now we can add elephants {#blank#}2{#/blank#}this list of copycats (盲目模仿者).

    Dr. Joyce Poole is an expert,{#blank#}3{#/blank#}studies the sounds of elephants. While she was in Kenya, she would hear strange noises {#blank#}4{#/blank#} (make) by Mlaika after sunset. Mlaika was{#blank#}5{#/blank#} 8-year-old African elephant and it lived near a highway.

    Dr. Poole says that she couldn't tell the {#blank#}6{#/blank#} (different) between Mlaika's call and the {#blank#}7{#/blank#} (distance) truck noise. Why did it copy the sounds of the trucks driving by? Animals that are able to copy sounds may enjoy {#blank#}8{#/blank#}(practice) new sounds. When they {#blank#}9{#/blank#} (keep) outside of their natural environment, they may copy unusual sounds. 

    So far Dr. Poole {#blank#}10{#/blank#}(spend) 18 years with two female Asian elephants. Asian elephants make sounds like birds to talk with one another.

    Parrots, dolphins, humans, and elephants show that being a copycat is one way that animals and people make new friends and keep old ones.

    What are the benefits of laughter? Laughter {#blank#}1{#/blank#}(use) as a signal for being part of a group —it signals acceptance and positive interactions with others. In fact, laughter is important, and has been shown to have many {#blank#}2{#/blank#} (benefit) effects on the human body in different ways. Just check out these health benefits of laughter.

    Boosts (增强) your immune system.{#blank#}3{#/blank#} (study) have shown that laughter boosts the immune system, increasing the number of antibody-producing T cells. This then makes us less likely{#blank#}4{#/blank#} (catch) coughs and colds. It also lowers the levels of at least four hormones (激素) which are connected with stress. So, after a good laugh you should be far less anxious.

    Improves your breathing. Laugh more and more, because laughter empties your lungs of the air {#blank#}5{#/blank#} it takes in, resulting in a cleansing effect - similar {#blank#}6{#/blank#} deep breathing. This is {#blank#}7{#/blank#} (especial) helpful for people who are suffering from asthma (哮喘).

    Protects your heart. Your heart is a muscle and, like any muscle in your body, it gets {#blank#}8{#/blank#} (strong) and functions better when exercised. Regular laughter is like{#blank#}9{#/blank#} (get) a gym membership for your heart. The study said that 15 minutes of laughter a day is as important for your heart {#blank#}10{#/blank#}30 minutes of exercise 3 times a week.

    I am taught by many teachers in my school. Every subject has a {#blank#}1{#/blank#} (differ) teacher, but I like my math teacher {#blank#}2{#/blank#}(well).Her name is Lakshmi but we usually call her Ma'am. She is our class teacher too.

    Ma'am {#blank#}3{#/blank#} (join) us last term. She is very kind and her way of teaching is so{#blank#}4{#/blank#} (interest) and simple that we all can understand everything {#blank#}5{#/blank#} is being taught and how it can be done. Most {#blank#}6{#/blank#} (important), Ma'am teaches math with lots of patience. If we do not understand a problem, she will spend extra time guiding us until we understand it. And we can go to her at any time during school hours for help.

    She also helps us {#blank#}7{#/blank#}activities at school. When there is some kind of programs, she will be there {#blank#}8{#/blank#}(help) us to get ready for the show. Even when we go on picnics, she takes good care of {#blank#}9{#/blank#}.

    To me, Ma'am is not only {#blank#}10{#/blank#} good teacher, but also our best friend. I love Ma'am and I wish her a happy life.

    China's research icebreaker Xuelong, {#blank#}1{#/blank#}126 crew members aboard on the 35th Antarctic research mission, on Thursday local time left the Zhongshan Station on {#blank#}2{#/blank#} (it) way back to China.

    Snow Eagle 601, China's first fixed-wing aircraft for polar flight, on Thursday night also departed from the Antarctic after {#blank#}3{#/blank#}(complete)all assignments.

    Xuelong, {#blank#}4{#/blank#} arrived near Zhongshan on Feb 9, supplied the station with fuel oil, and then picked up summer expedition team members at the Kunlun, Taishan and Zhongshan stations, as well as {#blank#}5{#/blank#}(member)of the fixed-wing aircraft project.

    Sixteen members of the Kunlun team {#blank#}6{#/blank#}(previous) completed all scientific expeditions at Dome Argus (Dome A), the South Pole's highest icecap. They, together with 21 members of the Taishan team, {#blank#}7{#/blank#}(return) to Zhongshan on Feb 8.

    The Zhongshan team completed tasks including installation of and tests for LiDAR, drilling of ice bed rock, atmospheric sounding {#blank#}8{#/blank#}(observe), surveys of birds and aerial exploration carried out by the fixed-wing aircraft.

    As the summer expedition team at Zhongshan left, 19 members would stay for winter expeditions.

    Also {#blank#}9{#/blank#}(know)as the Snow Dragon, the icebreaker carrying a research team set sail from Shanghai on Nov 2 last year, beginning {#blank#}10{#/blank#}country's 35th Antarctic expedition. It is expected to arrive in Shanghai in mid-March.

    Lang Ping and Michael Jordan are masters in their sports and also set good examples for others.

    Lang ping is loved by fans at home and abroad. When the Chinese team was preparing for the 2015 World Cup, her determination {#blank#}1{#/blank#} (test). Two players had to leave. Losing two important players was {#blank#}2{#/blank#} big challenge, but Lang Ping did not lose heart. She knew her young players could win {#blank#}3{#/blank#} they worked together{#blank#}4{#/blank#}a team. Two weeks later, they were world champions!

    Michael Jordan who became {#blank#}5{#/blank#}(know) as "Air Jordan" changed basketball with his graceful moves and jumps. His skills were {#blank#}6{#/blank#} (impress), but the mental strength that he showed made him unique. He always seemed to find a way {#blank#}7{#/blank#} (win). Jordan says the secret to his success is learning from his {#blank#}8{#/blank#} (fail). Losing games taught him to practice even{#blank#}9{#/blank#}(hard) than before. In life, Jordan has learnt to share his success with others. The Boys and Girls Club which he started in Chicago {#blank#}10{#/blank#}(help) young people since 1996.

    They are our pride and their legends continue.

I used to frequently visit an old age home{#blank#}1{#/blank#}(manage) by the little sisters of the poor in our city Hyderabad. A. P., India. There I met a gentleman by the name of Kurien in his late{#blank#}2{#/blank#}(eighty). He served the Indian army and retired. He has one son who is well educated and also married.

Mr. Kurien felt down with the life in his house{#blank#}3{#/blank#}decided to move into this old age home here in Hyderabad. We both began to share a lot of thoughts whenever we met and slowly it was a{#blank#}4{#/blank#}(day) affair that I used to spend some time with him discussing what he was doing in the army, camp fun etc.,{#blank#}5{#/blank#}he used to share with lots of joy.

I used to carry with me some snacks which we both used to sit under a tree and eat. I saw him really very happy in my{#blank#}6{#/blank#}(present). One day he told me with tears in his eyes "I really found a very good friend in you. I feel like{#blank#}7{#/blank#}(live) some more years to spend happy time with you.

As we departed, I told him, "Do not worry. We will have enough time together in the future." I had an official meeting and could not go to the old age home the next day. The day after when I reached the home, his room{#blank#}8{#/blank#}(lock). I enquired and found that he was no more. He died{#blank#}9{#/blank#}very night we both met last.

I really miss him. I have not given him anything worthwhile except{#blank#}10{#/blank#}I used to listen to his words and share his thoughts.