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    A house destroyed by a tornado would look . A.as a hurricane had hit it B. as if there had been a fire C. as if it had been stolen by a lot of thieves D. none of the above L It is important to know tomorrow’s weather. If we know a storm is coming, we can save lives and property. A few years ago large storms left many people without homes. In some places, a lot of rain fell at one time and caused floods. Weathermen predicted these storms, and people left their homes in time. Years ago, storms killed larger numbers of people than now. The weather is important to many people. Pilots have to know whether they can fly their planes around bad weather. Farmers have to know if there is going to be a storm, dry or cold weather. Fishermen have to know if they can take their boats out on the ocean. Good weather for some people is bad weather for others. A lot of snow makes skiers happy. But a lot of snow and ice cause problems for bus drivers, and travelers. Everybody likes sunny days, but farmers like summer rain for their crops. Today weather forecasters use planes and satellites to check the weather. The satellite takes pictures of the earth and its clouds. Weather forecasters study the pictures and predict the weather. 【查看更多】

     

    题目列表(包括答案和解析)

    语篇理解

    　　When a tornado (龙卷风) destroys a house, it doesn't blow it down the way a hurricane (十二级台风) does. It makes the house explode. Why does the house explode?

    　　The air that surrounds a house presses against it all the time. It usually has a force of about fifteen pounds per square inch. The air inside the house presses out against the walls just as hard. When a tornado passes over a house, it suddenly sucks away the air outside the house. The air inside the house still pushes out against the walls, but now there is nothing pushing back. So the walls are pushed out in an explosion.

    　　Pieces of the house are sucked up into the tornado and carried away. There is little left where the house once stood.

    1．A tornado makes a house ______.

    [　　]

    A．explode　　　B．blow away　　　C．fall down　　　D．catch fire

    2．The walls of a house stay up when ______.

    [　　]

    A．air pushes from the outside

    B．air pushes from the inside

    C．there is no pressure on them

    D．air pushes from both the outside and the inside

    3．In paragraph 2, the sentence “The air inside the house presses out against the walls just as hard.” means ______,

    A．the air in side the house presses out more greatly than the air outside

    B．the air pressure outside the house is usually the same as the pressure inside

    C．the air pressure inside the house is usually less than the pressure outside

    D．the air pressure inside the house is just as difficult as the pressure outside

    4．A house’s walls are pushed out when ______.

    [　　]

    A．the air outside is taken away

    B．the air inside is taken away

    C．too much air is pushing outside

    D．they are in very poor conditions

    5．A house destroyed by a tornado would look ______.

    [　　]

    A．as if a hurricane had hit it

    B．as if there had been a fire

    C．like a pile of wood

    D．as if a bomb had exploded in it

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    阅读理解：

    　　When a tornado(龙卷风) destroys a house, it doesn’t blow it down the way a hurricane(十二级台风) does. It makes the house explode. Why does the house explode?

    　　The air that surrounds a house presses against it all the time. It usually has a force of about fifteen pounds per square inch. The air inside the house presses out against the walls just as hard. When a tornado passes over a house, it suddenly sucks away the air outside the house. The air inside the house still pushes out against the walls, but now there is nothing pushing back. So the walls are pushed out in an explosion.

    　　Pieces of the house are sucked up into the tornado and carried away. There is little left where the house once stood.

    1．A tornado makes a house ______.

    　[　　]

    A．explode　　　　B．blow away

    C．fall down　　　D．catch fire

    2．The walls of a house stay up when ______.　　　

    [　　]

    A．air pushes from the outside

    B．air pushes from the inside

    C．there is no pressure on them

    D．air pushes from both the outside and the inside

    3．In paragraph 2, the sentence “The air inside the house presses out against the walls just as hard.” Means ______.　　　

    [　　]

    A．the air inside the house presses out more greatly than the air outside

    B．the air pressure outside the house is usually the same as the pressure inside

    C．the air pressure inside the house is usually less than the pressure outside

    D．the air pressure inside the house is just as difficult as the pressure outside

    4．A house’s walls are pushed out when ______.　　　

    [　　]

    A．the air outside is taken away

    B．the air inside is taken away

    C．too much air is pushing outside

    D．they are in very poor conditions

    5．A house destroyed by a tornado would look ______.　　

    　[　　]

    A．as if a hurricane had hit it.

    B．as if there had been a fire

    C．like a pile of wood

    D．as if a bomb had exploded in it

    查看答案和解析>>


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