I'm part of the Roots & Shoots program founded by Dr. Jane Goodall. The program is intended to make and promote positive changes in the world. As Dr. Goodall says, "What you do makes a difference, and you have to decide what kind of difference you want to make."

    In Bulgaria, where I live, homeless dogs are everywhere. Many people here turn a blind eye to them. But I cannot ignore the life of a street dog whenever I see one wandering in the street, looking for something to eat. That's why I'm no longer a food waster. When I see wasted food, I always think of a hungry dog climbing to garbage bins, searching for food that people have thrown there. When eating in a restaurant, I'm not afraid to take leftover food to feed stray cats or dogs.

    A week ago, I saw a homeless dog around the garbage bins. Immediately I knelt down, spoke to her softly and ran my hands over her. I could see that she had had puppies. I couldn't imagine how she could have been able to care for them. Hours earlier, I'd bagged up a plate of leftover fish. As I unwrapped it, she wagged her tail and sniffed at it. She ate all the fish in no time.

    It's sad, isn't it? I can't understand why many of us waste so much and think little of it. These homeless animals have taught me that food is precious. Even when I don't have leftovers with me, I'll take the time to get something from the grocery store to feed them.

    I know my power is small, so I hope that next time you see wasted food, do turn it into worthy food. You have the power to save a life!

    Off the coast of Hawaii's Big Island swim masses of colorful tropical fish. Some of these fish will be caught and sold, ending up in aquariums around the world. Is the industry putting populations of the fish at risk?

    Scientists who have studied the Big Island fishery say it is well managed. Rules put in place more than 15 years ago have helped to protect the fish. Along 35% of the coastline, for example, fish collecting is banned. Two years ago, the state cut the number of fish species for the aquarium trade from hundreds to just 40.

    Conservationist Robert Wintner objects to the findings. Wintner, who owns snorkel shops across Hawaii, started the Snorkel Bob Foundation to protect the island's coral reefs(珊瑚礁). He says he simply doesn't see yellow tang(刺尾鱼)in the protected areas. “There should be millions of them,” he says. “Where are they?”

    Wintner says people believe the numbers in reports. But few people have actually dived into the coral reefs to see for themselves how many fish can be found there. According to Wintner, the coral reefs along the coast should be filled with yellow tang, but they are “virtually empty”. Empty reefs are not good for tourism, Wintner points out, which brings out $800 million yearly. By contrast, the aquarium-fish trade brings out just $2 million yearly.

    Computers have beaten human world champions at chess and, earlier this year, the board game Go. So far, though, they have struggled at the card table. So we challenged one AI to a game.

Why is poker(扑克)so difficult? Chess and Go are “information complete” games where all players can see all the relevant information. In poker, other players' cards are hidden, making it an “information incomplete” game. Players have to guess opponents' hands from their actions—-tricky for computers. Poker has become a new benchmark for AI research. Solving poker could lead to many breakthroughs, from cyber security to driverless cars.

    Scientists believe it is only a matter of time before AI once again vanquishes humans, hence our human-machine match comes up in a game of Texas Hold's Em Limit Poker. The AI was developed by Johannes Heinrich, researcher studying machine learning at UCL. It combines two techniques: neural(神经的)networks and reinforcement learning(强化学习).

    Neural networks, to some degree, copy the structure of human brains: their processors are highly interconnected and work at the same time to solve problems. They are good at spotting patterns in huge amounts of data. Reinforcement learning is when a machine, given a task, carries it out, learning from mistakes it makes. In this case, it means playing poker against itself billions of times to get better.

    Mr Heinrich told Sky News: “Today we are presenting a new procedure that has learned in a different way, more similar to how humans learn. In particular, it is able to learn abstract patterns, represented by its neural network, which allow it to deal with new and unseen situations.”

    After two hours of quite defensive play, from the computer at least, we called it a draw.

    When our second child was born, the doctor pointed out that her feet were turned inward. “Left uncorrected, it would be a 1,” he told us.

    We2 to do anything we could do help our baby.3she was growing I had to take her back to the doctor every two weeks to have each foot recast. 4the casting was finished and it was time for corrective5.Jim and I watched with hope and concern as she6to walk. Those first, awkward steps made us so7. By the time she entered preschool, her steps appeared quite8 . Encouraged by her progress, we looked for something else to help strengthen her9body.

    As it turned out, she loved the10 ! When she tuned six, we helped her join in skating lessons and soon she was skating11a swan. She kept working hard at every new 12, and her efforts13. At fifteen, she competed in both pairs-skating and the ladies' singles at the 1988 World Junior Championships in Australia, wining both14!

I thought back to the early years of15for Kristi—the years of fear for us as her parents, and the same years of frustration for her as a child two 16wanted to walk. During those years, we didn't expect gold medals and a good professional career17her. We admired Kristi herself, 18 her strength and efforts, and how far she had come on two tiny feet that had19been bound in heavy casts. In our eyes, Kristi had always walked with the20of a true champion.

    With the cold weather season rapidly approaching, caring for dry skin may become more challenging. Here are some tips on how to protect your skin and keep it healthy throughout the colder months of the year.

    Avoid harsh(刺激性的) cleansers containing sulfates or alcohol, and choose a gentle cleanser. Harsh cleansers may disrupt the PH balance of your skin and cause dryness.

    Switch to a face oil

     In order to avoid dryness, rub about 3 to 5 drops of oil the palm of your hands and then gently pat it into the skin. Face oils offer the benefit of conditioning the skin and protecting it from the cold air.

    Exfoliate(去死皮)

    Exfoliating is very important because it helps to get rid of dead skin cells and encourages skin cell renewal. However, especially when the skin is feeling extra dry, it is important to use a gentle product and not to overdo it.

    If you don't feel thirsty and struggle with taking in enough liquids, try to drink tea, sweetened with a little raw honey. Dehydrated skin cells have a slower turnover rate, which results in dull skin and more visible fine lines.

     The most advantage is that you will spend the cold season with comfort and confidence.

A. Drink plenty of water

B. Eat homemade soups

C. Use mild facial cleansers

D. Follow the above tips, you may own nice skin and look better.

E. Here are three of the most common example of skin discomfort.

F. After cleansing your face, your skin still takes the risk of dryness.

G. Moreover, dead skin cells won't allow your face oil to enter the skin deeply.

    Jean Little who was born in Taiwan, China, has been living in Canada since the age of seven. In spit of the challenge of(she) blindness. Jean began writing as a child and has never stopped. despite(limit) vision, she attended regular school graduated in 1955 from the University of Toronto with an Honors Degree in English. She taught special need children until 1962. That year, her first book, Mine for Keeps, (win)the Little Brown Children's Book Award and since then Jean has written 50 books,  (include)novels, picture books, autobiography, poetry and short stories, among are some of Canada's best-loved works for children, such as Dancing Through the Snow, Mama's Going to Buy You a Mockingbird, Listen for the Singing. Her books (translate) into a dozen languages so far and have won many awards.

    In addition all her awards, she has received six honorary degrees and is a member of the Order of Canada for her outstanding (contribute) Canadian children's literature, and (recent) she won the Queen's Diamond Jubilee Medal.

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1）．每处错误及其修改均仅限一词；

2）．只允许修改10处，多者(从第11处起)不计分。

    I have always been the big fan of music, but to be honest I don't know any person whom has ever openly disliked it. It's one of true friend in life because it can be enjoyed by anyone and everyone. With books, you have to be able to read, and music has no limits, no special conditions and was easily enjoyed by all. I don't think there are many things in life for which have such a directly and clear influence on one's feeling. Obvious, however, there are some people who are much influenced by music, and of course it depends what sort of music they're into. Watch people react to one of their favorite songs is actually the best thing ever.

1). 身份及目的

2).自身优势（兴趣、相关经历）

3). 信心与希望。

注意：

1). 词数100左右；

2).可以适当增加细节，以使行文连贯；

3).开头语已为你写好，不计入总词数。

参考词汇：国际贸易博览会International Trade Fair

Dear Sir to Madam,

    I am glad to have read your advertisement.

Yours truly,

Li Hua