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        1.   Water is life of our earth. It's in every living thing. It is in the air. It runs through mountains and valleys. It forms(形成)lakes and oceans. Water is everywhere.

            Nature has a great water system(系統(tǒng)). Rain water finds its way to streams(溪)and rivers. Rivers lead to the ocean. At mouths of rivers, fresh water joins the salt water of the ocean.

            Thick water steam(水蒸氣)in the air becomes clouds and clouds bring us rain. Plants and animals' lives depend on water. Where there is water, there is life. We have to clean our streams and rivers and do something against pollution(污染)because pollution does harm(有害的)to the life.

          根據(jù)短文內(nèi)容,選擇正確答案。

          (1) We say water is life of our earth because ____.

          [  ]

          Awater is in the air

          Bwater can run everywhere

          Cthere is water in every living thing

          Dwhere there is water, there is life

          (2) According to(根據(jù))the article, which of the following is correct?

          [  ]

          AWater is in every living thing.

          BWater is everything.

          CWater forms everything.

          DWater runs through everything.

          (3) According to the article, fresh water joins the salt water of the ocean ____.

          [  ]

          Ain the valleys

          Bin the mountains

          Cat mouths of rivers

          Dat mouths of oceans

          (4) According to the article, what do we have to do against pollution?

          [  ]

          AClean the stream.

          BStop air pollution.

          CPrevent(阻止)the fresh water from joining the salt water.

          DClean our streams and rivers.

          答案:C;A;C;D
          解析:

          (1)從文章前兩句可得知。

          (2)由短文第一段第2句話可知水存在于每個(gè)生物中。

          (3)淡水和海水是在河流的入海口交匯的。

          (4)最后一段最后一句話。


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