运动前的热身活动有助于肌肉放松，也能避免受伤。请阅读题有关热身活动的文字，然后从A、B、C、D和E中选择符合文字内容的图示，并将答案写在对应题号的横线上。
{#blank#}1{#/blank#} Activity 1:
◇Hold arms straight out to the sides
◇Move your arms in circles
◇Come back to the starting position and move your arms in the other direction
{#blank#}2{#/blank#} Activity 2:
◇Raise one foot backward, and hold it with one hand
◇Breathe and slowly pull your foot to your hip(屁股)
◇Try to keep both knees together
{#blank#}3{#/blank#} Activity 3:
◇Stand with some space in front of and behind you. Move the top of your body downward
◇ Keep your back straight and reach for your feet with both hands
◇Hold this for about half a minute
{#blank#}4{#/blank#} Activity 4:
◇Take one step forward with your right foot
◇Put your hands on the right knee and press(压)
◇Do the action in the same way with your left foot
{#blank#}5{#/blank#} Activity 5
◇Stand with feet shoulder-width apart（两脚与两肩同宽）
◇Raise both arms overhead
◇Hold for about half a minute and relax

WARNING(警告): Holding a cell phone against your ear or putting it in your pocket may be bad for your health. This sentence is a warning that you'd better not put it close to you when a new phone is bought. Apple company, for example, doesn't want iPhones to come closer to you than 1.5 centimeters; Research In Motion, BlackBerry's producer, recommends 2.5 centimeters.

      If cell phone use can cause health problems, the result will be very serious. Americans spend 2.26 trillion minutes chatting on cell phones every year, which brings $109 billion for the wireless businessmen.

      Devra Davis, an epidemiologist(皮肤病专家)who has worked for the University of Pittsburgh, has published a book about mobile phone radiation(辐射)"Disconnect." Davis studies how often brain cancer happens during different age groups. As a result of mobile phone radiation, she finds that a big increase(增长)in brain cancer in the 20-to-29 age group and a drop for the older people.

      Children are more easily hurt by radiation than grown-ups, Ms. Davis and other scientists point out. But no studies have yet been finished on cell phone radiation and children, she says.

      Henry Lai, a research professor, began lab radiation studies in 1980 and found that mice exposed to(暴露在) radiofrequency（电波频率）radiation had destroyed DNA in their brains.

      Ms. Davis recommends using wired earphones（有线耳机）or the phone's speaker. Children should send text messages rather than call, she said, and pregnant women should keep phones away from their bodies.

    John: I'm 15 years old and I love football. I also like reading, especially(尤其是) stories about people from other countries. I don't enjoy singing or playing computers. I think that rock music is terrible.

    Ann: Hi, I'm Ann. I'm 16 and I like dancing and computers. I also like rock music. I hate hiking and I'm not interested in classical music. I don't enjoy reading too much.

    Steve: I'm 14 years old and I love skiing. Other favorite hobbies are reading and singing. I don't like hiking. I think that rock music is too noisy and I think that football is boring.

    Peter: I'm from Australia. I'm 15 and I am fond of singing. I sing a lot, and when I'm not singing, I listen to rock music or use my computer. I don't like football and I think that classical music is terrible. I hate dancing!

    Sarah：My name is Sarah and I'm 14 years old. My interests are reading novels, playing football and singing songs. I think that rock music is terrible, and I don't like dancing. I don't enjoy computers, either.

    Joe：Hi, I'm Joe. I really like computers. I surf the Internet all the time and I like playing computer games. I don't enjoy football and I hate hiking. Rock music is OK, and so is skiing.

B

    I'm Sara. I'm a middle school student. At school, we have nine subjects — math, English, Chinese, science, geography, history, art, P.E. and music. My mother is a Chinese teacher and she says Chinese is beautiful and important (重要的). I like Chinese. I always read Chinese books before I go to bed. I also like history. It is my favorite subject. Mr. Brown is great fun. In his history class, I can learn many interesting stories.

    Mr. Green is my math teacher. He says math is useful and interesting, but I think it is boring. My science teacher, Mrs. Smith, is nice. I listen to (听) her carefully (认真的) in class. But I can't do well in the science exam(考试). I don't know why. This subject is really difficult for me.

    We always have art, P.E. or music in the afternoon. For me, the classes in the afternoon are fun and relaxing. In P.E. class, I like to play ping-pong with my P.E. teacher Mrs Miller plays very well.

根据材料内容简要回答下列问题

    Great white sharks in the Pacific Ocean. Wildebeest (角马)in Africa. Arctic terns(北极燕鸥) in the Atlantic. At first, these animals seem quite different. One swims, one walks, and the other flies. But they all have one thing in common, They all migrate(迁徙).

    Some migrating animals move to a place with a better temperature. Some go to find food or water. The groups travel as one, but during the trip, they face many different challenges.

    One challenge is distance. Some migrating animals take very long trips. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20, 000 kilometers!

    Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole to another.

    Besides, migrating animals have to keep away from other animals that want to eat them. The zebra (斑马) has to avoid lions. Traveling as a group helps keep them safe. When one zebra is in trouble, the other members make a circle around it.

    By working as a group, migrating animals travel to live better lives.

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