A seabird named Lydia recently made a 26-day nonstop(不间断的)journey of about 2,500 mi­les, just to search for food for her baby. She is fitted with a satellite tracking device (卫星跟踪仪). Her trip started on Oct. 18 from Christmas Island in the Indian Ocean. The trip is known as the lon­gest nonstop journey by one of these endangered seabirds.

      Before that, this kind of birds was known only to fly a few hundred miles from where they live, staying away for just a few days at a time. They usually fly over the sea.

      The scientists feel it strange that Lydia made such a long, nonstop journey and flew overland. So the above facts raise some serious questions about efforts to stop the decline(减少)of the birds. The number of the birds has fallen by 10 percent over the past 20 years.

Besides, the scientists are surprised that she was away from her baby for such a long time. They wonder why she needed to go that far. Maybe it shows that fish resources (资源)around Christmas Island are not large enough now. That might explain the slow decline of the bird 一 sea pollution(污染) is serious.

    Jake lives in New York with his parents．His grandparents live in Chicago．He will go to see his grandparents with Mom．They will go by plane．First，they take a bus to the airport(机场)．

    "It's my first plane trip，"he tells the bus driver．

    "That's great!"says the bus driver．

    Jake and his mom arrive at the airport and then they get on the plane at 10：50 a．m．A flight attendant(乘务员) helps them find their seats(座位)．

    "It's my first plane trip，"Jake tells the flight attendant．

    "Welcome，"says the beautiful flight attendant.

    About 20 minutes after Jake and his mom get on the plane,the plane begins to run on the runway．It's kind of noisy．Jake feels afraid．Jake takes out his panda from his bag．"It's my first plane trip，"he says quietly．

    The plane runs faster and faster(越来越快)．Then-Whoosh! Jake can see the houses look like small boxes．

    Jake isn't afraid now．"Hey,panda，a plane trip is fun，"he says．

根据材料内容简要回答下列问题。

    During rush hours, you never know when a bus or a taxi might come. Walking might be too tiring. If it's about two or three miles away, which kind of transportation will you choose?{#blank#}1{#/blank#}

    Bike shares are a growing convenience in many cities around the world.{#blank#}2{#/blank#} Riders usually have to pick up a bike at a self—serve station and return it at another station later. However, a Chinese bike—sharing company called Ofo, is bringing this idea to a new level.

    Like any other bike—sharing service, Ofo users can get a bike at any time.{#blank#}3{#/blank#} Instead, they can pick one up wherever and whenever they please. To get a bicycle, riders with the app are able to find the nearest one.{#blank#}4{#/blank#}After parking the bike, all they have to do is to lock it.

    This Chinese company already has its bicycle throughout China, the United States and Singapore.{#blank#}5{#/blank#} “We want to reach more cities, connect more bikes and serve more people”, said Ofo founder Dai Wei.

A. Thousands of bike sharing programs have been set up by the governments.

B. When a rider is done with the bike, returning is just as easy.

C. This month, 500 Ofo bicycles will be set up in Cambridge, England.

D. For short journeys, riding a bike could be the best solution.

E. The big difference is that they don't need to find a self—serve station.

    Maybe you pride yourselves on only sleeping a few hours a night. However, are you feeling tired and sleepy throughout the day? Do you have a hard time keeping your eyes open as you study? Have you nodded off while driving? If you can answer “Yes” to any of these, it shows you could not have enough sleep.

    It is suggested that most adults need seven to nine hours' sleep. As for teens, they need even more. If you aren't getting enough sleep, you should：

    Avoid caffeine(避免咖啡因)

    You should avoid drinking caffeinated drinks such as coffee, tea and soda for at least 10 hours before you go to bed.

    Avoid eating big meals before sleeping

    Eating a big meal can make you feel sleepy, and it can make you feel uncomfortable and prevent you from sleeping well.

    Build a healthy sleep environment

    With the light on, can you have a good sleep? Of course not, and you'd better keep your bedroom dark and cool.

    Avoid using electronics before sleeping

    The light from electronics can keep you from falling asleep. Try reading or listening to quiet music instead.

    Please get enough sleep from now on.

    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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