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    A desert is a very dry land where there is hardly any rain. In the day, it can be so hot that you could fry an egg on the ground. But during the night it is sometimes so could that water would turn into ice.






    Many desserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Dessert has cliffs(悬崖) that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.
    Sometimes it does not rain for a whole year in the desert. But there is water deep under the ground and some plants have roots that go very deep to find it. Other plants have roots that spread out(延伸) a long way so they can suck up the rain as soon as it falls.
    One desert plant is the cactus, which has long, spreading roots. The cactus stores water inside its hard skin. This skin protects it from heat and cold.
    Camels are a bit like cactus plants! They store water too—inside their bodies. They have special fur which protects them from the sun during the day and keeps them warm at night.
    Some other animals live in deserts, too. They have to be very good at seeing and hearing because most of them only come out at night. This is why many desert animals have extra big eyes or ears.
    A desert fox has bigger ears than a normal for. A gerbil has huge eye, so that it can see at night. It stays cool in the day by staying underground, like most desert animals.
    Some people live in the desert but they always make their homes near an oasis. An oasis is where water comes from an underground river. Near an oasis, people can grow lots of plants and keep animals.
    Life is hard in the desert, for people, animals and plants. But desert people like to live there.
    【小题1】A desert is very dry because__________.
    A．it is sandyB．there is so little rain
    C．the wind is strongD．there is no water deep under the ground
    【小题2】What does the underlined phrase"suck up"in paragraph 3 mean_________?
    A．围堵B．讨好C．释放D．吸收
    【小题3】Some desert animals have extra big eyes or ears because__________.
    A．the sunlight is too strong in the dayB．they need to see and hear well at night
    C．it is very cold at nighD．they store water in them.
    【小题4】Most desert animals stay cool in the day by_________.
    A．storing water in side their bodiesB．drinking water as much as they can
    C．staying undergroundD．growing lots of plants
    【小题5】Which of the following is true?
    A．Desert people like to live in the desert though life is hard.
    B．People in the desert usually fry eggs on the ground.
    C．Camels have special fur to store water.
    D．All the deserts are covered in sand.

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    In old times，man considered lightning to be one of the great mysteries（神秘事物）of nature．In fact a single flash of lightning 1.6 kilometers long has enough electricity to light one million lamps．
    The American scientist，Benjamin Franklin，was the first to suggest that lightning is in fact electricity formed between the earth and clouds high above．It happened in 1752．In the same year，he also built the first lightning rod（避雷针）to protect buildings from being struck by lightnings．
    Modern science has discovered that lightning is very strong and powerful．A lightning between a cloud and the earth may be as long as 13 kilometers，and travels at a speed of 30 million meters per second．Scientists have the opinion that there are about 2000 million flashes of lightning per year．In the United States alone，it kills almost one person per day．
    The safest place to be in during an electrical（电的）storm is a closed car．Outside，one should go close to low ground for cover and not stop under a tree．Also one should stay out of water and away from metal fences．Inside a house people should keep away from open doorways and windows and not touch wires or metal things．
    【小题1】From this passage we know lightning is____．
    A．one of the great mysteries of nature．
    B．electricity high above the earth．
    C．a kind of light．
    D．the sound from the clouds．
    【小题2】In the U．S____．
    A．every person can see lightning every day．
    B．at least one person is killed by lightning every day．
    C．there are about 6 million flashes of lightning per year．
    D．about one person per day dies from lightning．
    【小题3】During a lightning storm，it would be best if you____．
    A．stand under a tree．
    B．go outside．
    C．stay in a closed car．
    D．stop near windows．
    【小题4】A lightning rod can______．
    A．prevent accidents caused by lightning
    B．stop lightning
    C．protect buildings from being washed away．
    D．delay the coming of lightning
    【小题5】A lightning between a cloud and the earth may be 13 kilometers long，and travels at
    a speed of ______．
    A．30 kilometres per second．
    B．3000 kilometres per second
    C．3 kilometres per second
    D．30，000 kilometres per second

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    A Solar-powered Plane---Lowcarbon
    Earlier this month, a solar-powered (太阳能动力的)plane called Lowcarbon took off to the sky for the first time. It has passed an important test on the way to travel around the world.
    Lowcarbon took off from an airport in Switzerland(瑞士)at 45 km an hour. It slowly rose into the sky.
    “There has never been an airplane so big, so light, using so little energy,” said Bertrand Piccard, a leader of the project.
    During the 90-minute flight, Lowcarbon did several turns. It climbs nearly 1.6 km above the countryside.
    Engineers plan to test a night flight in July. Then they will use the results of the tests to build a second plane. They plan to travel around the world in that plane in 2012. “We want to fly it day and night with no fuel,” Piccard said.
    Piccard and pilot Andre Borschberg will take Lowcarbon around the world .They will make a few stops to change places and rest after a long time in the air----and to show off their aircraft.
    Lowcarbon flies at 70 kph on average(平均). That is faster than a bike and slower than a car. The pilots will keep it in the air for up to five days at a time.
    We Are One---“Expo Through My Eyes”
    Sharing offers you more happiness. To celebrate the 2010 Shanghai World Expo, China Daily invites you to share what you’ve seen, heard and experienced at the 6-month international event or Expo-related stories in English. Whether you are an Expo volunteer, a reporter, or a tourist , we’d like you to share with us your Expo experience, as seen through your eyes. So if you would liketo contribute(投稿)，please join us today in sharing the joy!
    Topic: 2010 Shanghai World Expo
    Language: English only
    Length: No more than 1,000 words-
    Content: Stories with photos are necessary.
    Duration: May 1,2010---October 31,2010
    Email-box: expo@chinadaily.com.cn
    Reward: In addition to the satisfaction of supporting our work,
    ---your stories will be published on China Daily’s website;
    ---you will go in a lucky draw for a prize.
    【小题1】Which of the following information about the plane Lowcarbon is NOT true?
    A．It can fly at 70 km an hour.B．It is solar –powered.
    C．It has passed a night-flight test.D．It is slower than a car.
    【小题2】Lowcarbon is a special plane because________________.
    A．it’s made in SwitzerllandB．it has travelled around the world
    C．it can do turns in the skyD．it’s big and light, but uses little enegy
    【小题3】The purpose of the second article is to________________.
    A．encourage us to visit Shanghai ExpoB．ask us to be volunteers for Shanghai Expo
    C．invite us to write stories about Shanghai ExpoD．tell us to get the lucky prize of Shanghai Expo
    【小题4】Your stories about the 2010 Shanghai Expo for China Daily___________.
    A．can be in ChineseB．don’t need to have photos
    C．must be given by postD．should be handed in by e-mail

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    During the day we work and play, and at night we sleep. Our bodies rest while we are   1 . In the morning we are ready  2  again. Our bodies grow   3  while we are asleep. Children who are tired usually   4  sleep. We can get better at our lessons  5  we have had plenty of rest. Boys and girls who are eight or nine years old need ten  6 sleep every night. Our bodies need plenty of   7  when we sleep. If we do not get enough fresh air, we      8  tired when we wake up. While in bed we must not cover our   9 . Our lungs(肺) needs to get  10 fresh air. If we   11 our windows at night, we can have plenty of fresh air. Cool air is better than warm air. Boys and girls who want to be   12  must get plenty of sleep.
    Also, we need some after-school activities to keep in good health.   13 _students run every day. Some boys play basketball  14 a week.   15  girls,  some  often  play volleyball….So good sleep and exercise can help us grow better and study better.

    【小题1】
    A．asleepB．sleepC．restD．play
    【小题2】
    A．to work and playB．working and to playC．to work and playingD．working and playing
    【小题3】
    A．muchB．moreC．mostD．slow
    【小题4】
    A．canB．mayC．needD．must
    【小题5】
    A．whileB．beforeC．asD．after
    【小题6】
    A．hourB．hoursC．hour’sD．hours’
    【小题7】
    A．air B．sunC．waterD．food
    【小题8】
    A．feltB．will feelC．are feelingD．has felt
    【小题9】
    A．footB．armC．headD．body
    【小题10】
    A．manyB．muchC．lots ofD．enough
    【小题11】
    A．openB．closeC．drawD．use
    【小题12】
    A．happyB．interestedC．helpfulD．healthy
    【小题13】
    A．muchB．more C．many D．a lot
    【小题14】
    A．one or two timesB．one and two timesC．once or twiceD．once and twice
    【小题15】
    A．SoB．But C．AndD．As for

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    In old times，man considered lightning to be one of the great mysteries（神秘事物）of nature．In fact a single flash of lightning 1.6 kilometers long has enough electricity to light one million lamps．
    The American scientist，Benjamin Franklin，was the first to suggest that lightning is in fact electricity formed between the earth and clouds high above．It happened in 1752．In the same year，he also built the first lightning rod（避雷针）to protect buildings from being struck by lightnings．
    Modern science has discovered that lightning is very strong and powerful．A lightning between a cloud and the earth may be as long as 13 kilometers，and travels at a speed of 30 million meters per second．Scientists have the opinion that there are about 2000 million flashes of lightning per year．In the United States alone，it kills almost one person per day．
    The safest place to be in during an electrical（电的）storm is a closed car．Outside，one should go close to low ground for cover and not stop under a tree．Also one should stay out of water and away from metal fences．Inside a house people should keep away from open doorways and windows and not touch wires or metal things．
    【小题1】From this passage we know lightning is____．

    A．one of the great mysteries of nature．
    B．electricity high above the earth．
    C．a kind of light．
    D．the sound from the clouds．
    【小题2】In the U．S____．
    A．every person can see lightning every day．
    B．at least one person is killed by lightning every day．
    C．there are about 6 million flashes of lightning per year．
    D．about one person per day dies from lightning．
    【小题3】During a lightning storm，it would be best if you____．
    A．stand under a tree．
    B．go outside．
    C．stay in a closed car．
    D．stop near windows．
    【小题4】A lightning rod can______．
    A．prevent accidents caused by lightning
    B．stop lightning
    C．protect buildings from being washed away．
    D．delay the coming of lightning
    【小题5】A lightning between a cloud and the earth may be 13 kilometers long，and travels at
    a speed of ______．
    A．30 kilometres per second．
    B．3000 kilometres per second
    C．3 kilometres per second
    D．30，000 kilometres per second

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