— In Beijing.

— No. 5358.

选词填空。

    Lots of scientists believe there's life on other planets．Because of this，they keep doing research about the universe．They have sent astronauts to the moon．And they have {#blank#}1{#/blank#}the answer．There's no life on the moon．Not long ago they {#blank#}2{#/blank#}spaceships to Mars．There，they didn't find life．And they found the environment of Mars was {#blank#}3{#/blank#}from that of the earth．Then they knew it was{#blank#}4{#/blank#}for people to live on Mars．

    {#blank#}5{#/blank#}they haven't received a message from other planets，they believe their idea is right．Recently they have {#blank#}6{#/blank#}a planet．It's {#blank#}7{#/blank#}Proxima Centauri．It's very {#blank#}8{#/blank#}to our earth．It is just over four light years away．Proxima Centauri is {#blank#}9{#/blank#}than the earth．And there's water on this planet．That {#blank#}10{#/blank#}mean that life is possible there．Now scientists are studying this planet．Soon they will tell people the answer．

    We produce lots of rubbish everyday. {#blank#}1{#/blank#} (take) away a city's rubbish is a big job. Every day trucks come into a city {#blank#}2{#/blank#} (collect) the rubbish. Most of it is made up of things we can't eat {#blank#}3{#/blank#} use. If we keep these things, we will have a mountain of rubbish soon.

    In some cities the rubbish. {#blank#}4{#/blank#} (carry) outside the city to a dump(垃圾场). The kitchen rubbish is broken into small pieces and sent into a sewage system(污水处理系统). {#blank#}5{#/blank#} sewage system takes away the used water {#blank#}6{#/blank#} toilets and other places.

    People usually use some earth to cover the dumped rubbish. Later, grass may be planted on the land. After all of these, the place looks much {#blank#}7{#/blank#} (clean) than before. With the beautiful environment in front of {#blank#}8{#/blank#} (we), it's hard to imagine that it used to be a rubbish dump. But actually it is not {#blank#}9{#/blank#} (health) to stay in such a place for a long time.

    In order to protect the cities, the rubbish is burnt in special places. The fire burns everything {#blank#}10{#/blank#} the metal. Sometimes the metal can be used again in factories. In those factories, the metal is made into different kinds of products.

Dear Lily,

    I was on vacation with my family last May Day. We{#blank#}1{#/blank#}(spend)the first four days in Paris. We{#blank#}2{#/blank#}(have)a sightseeing(观光)tour of the city and we also{#blank#}3{#/blank#}(visit)some of the famous places like the Eiffel Tower. From Paris we traveled down to the south of France near Marseilles by boat. We stayed there for five days. There we{#blank#}4{#/blank#}(have)a lot of fun. We{#blank#}5{#/blank#}(swim)in the sea and{#blank#}6{#/blank#}(take)a lot of photos. We also{#blank#}7{#/blank#}(do)lots of sports on the beach. We{#blank#}8{#/blank#}(go)back a week later by train. The trip{#blank#}9{#/blank#}(be)interesting, and the food{#blank#}10{#/blank#}(be)delicious.

Yours,

Betty