On April 26,2017,China's homemade aircraft carrier(航空母舰) hit the water in Dalian,Liaoning.

    {#blank#}1{#/blank#} So the whole world has paid much attention to it.

    The new ship is China's second aircraft carrier and it has no name yet. China's first carrier is Liaoning, which was bought from Ukraine(乌克兰) and later rebuilt by China. The new carrier was designed(设计) in China and the building began in 2013.It is about 315 meters long and 75 meters wide.{#blank#}2{#/blank#}The ship must be completed at sea, which will take several years.

    {#blank#}3{#/blank#}It can carry planes and soldiers to war. Planes fly from and land back on it, and soldiers work and live on it. Thanks to carriers, planes can take off and land from anywhere in the ocean around the world.

    But an aircraft carrier is very hard and expensive to build{#blank#}4{#/blank#} it is said that a basic aircraft carrier is made of 60,000 tons of steel! It also uses different technologies. Finally, it takes years to build.

    {#blank#}5{#/blank#} When the new carrier is completed, China will become the seventh country in the world that can build an aircraft by itself, after the US, Russia, UK, France, Italy and Spain.

    There is no doubt that China is becoming much stronger. All Chinese are proud of the progress.

阅读短文，将下列五个句子还原到文章横线处。

A. That is a little larger than three soccer fields.

B. An aircraft carrier is like an airport on the sea.

C. It is the largest and best ship China has ever built.

D. It costs a lot of money and needs a large amount of steel.

E. Today, not many countries own an aircraft carrier or have the ability to build one

Smoke alarms(报警器)

    House fires cause many deaths each year and a large number of these fires are unfortunately set by children.{#blank#}1{#/blank#}Kids must understand that they, d better not play with fire. You should keep matches and lighters out of their reach.

    {#blank#}2{#/blank#} The main job of such an alarm is to protect you while you're asleep. You should have a smoke alarm outside each bedroom and on each floor of your home. You ought to have two plans for getting out of your house if there is a fire and practise these plans in the dark with your family.

    A smoke alarm warns you of the danger. {#blank#}3{#/blank#}Take action immediately. When you come to a closed door, check it with the back of your hand. If it feels hot, there may be smoke or fire behind the door, so take care. Once you are out of your house, call the fire department from a neighbor's house. If a family member or a pet is caught inside, you shouldn't go back in. Firemen know how to perform rescues safely {#blank#}4{#/blank#} Change the batteries at least once a year. You should use the test button each month to see if the alarm and batteries are still working. A smoke alarm lasts about ten years. You ought to change it even if it seems to be working.

    About two out of three fire deaths happen in homes with no working smoke alarms.{#blank#}5{#/blank#}

A. Most of these deaths can be avoided.

B. But when you hear it, you don t have much time.

C. A smoke alarm is only good if it's working properly.

D. So, it's important to teach them that fire is a tool, not a toy.

E. A smoke alarm greatly reduces your chances of being hurt in a fire.

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