Question

As rain begins to fall from the clouds, it is very pure. However, as it falls through the air it dissolves some of the gases in the air ,It also collects bits of dust and microbes(微生物)that are floating in the air, When the rain reaches the ground it begins to pick up more dust and dirt, Many kinds of mineral substances dissolve in the water ,Sand and nud cannot dissolve in water.
Since water is so important to us, it is very important that the water we use should be clean , Otherwise, we might get some of the diseases that are carried by water Many microbes are harmful ,They are so small that we cannot see them ,These microbes must be removed or killed before the water is not clean, people who drink this water may get these diseases, Thus , to provide people with clean water, the government purifies the water.
Purification is a long process and consists of three stages: storing ,purifying and distributing ,The first stage is storing , Man-made lakes called reservoirs are used for this purpose ,Water from the rains ,other lakes, streams and rivers is collected in the reservoirs ,This water is usually dirty and muddy.
In the second stage shich is purifying , water from the reservoirs is filtered in a special pond, Stones, sand and other unwanted tiny things are caught in it, After that, tiny microbes are still present in the water ,These microbes are removed by “airing ”the water and by adding a chemical substance called chloring(氯)to the water ,This kills all the microbes in the water ,A fter this the water can be safely used for drinking.
The third stage is the distribution of the purified water to homes ,hospitals, offices ,factories and other places, This is done through a network of pipes of various sizes, These pipes must be make of a suitable material

1. 1.
   From Paragraph 1, we can learn that______.
   1. A.
      Rain has contained gases when it forms in the clouds
   2. B.
      Dust and microbes are dissolved in rain when rain falls on the ground
   3. C.
      The closer rain is to the ground, the more impure things it contains
   4. D.
      Sand and mud are things rain collects when it falls through the air
2. 2.
   According to Paragraph 2 ,the following statements are wrong except that______.
   1. A.
      All the microbes in water are harmful so water must be purified
   2. B.
      some diseases can spread through drinking water if it is not clean
   3. C.
      Water is safe to drink if only harmful microbes are removed from it
   4. D.
      it is the govrnment’s responsibility to make drinking water clean
3. 3.
   What can we know about man-made lakes?
   1. A.
      It is used through the whole process of purification
   2. B.
      Only rain water can be collected and stored in it
   3. C.
      Water collected can be stored and filtered in it
   4. D.
      Water from them contains a lot of impure substances
4. 4.
   What is the function of the chemical substance chlorine?
   1. A.
      to air the water
   2. B.
      to catch tiny things
   3. C.
      to kill microbes
   4. D.
      to remove harmful gases
5. 5.
   What is probably this passage?
   1. A.
      A news report
   2. B.
      A book review
   3. C.
      A magazine article
   4. D.
      A school paper

Answer 1

CBDCC
試題分析：本文主要講述了凈化水的過程以及在凈化的過程中人們采用的多種不同的凈化方法。
1.C 推理題。根據(jù)文章第一段as it falls through the air it dissolves some of the gases in the air ,It also collects bits of dust and microbes(微生物)that are floating in the air, When the rain reaches the ground it begins to pick up more dust and dirt, Many kinds of mineral substances dissolve in the water ,Sand and nud cannot dissolve in water.可知在下落的過程中，雨水溶解了很多有害的物質(zhì)在里面，所以雨水越靠近地面，越臟。故C正確。
2.B 細(xì)節(jié)題。根據(jù)文章第二段3,4行,These microbes must be removed or killed before the water is not clean, people who drink this water may get these diseases可知這樣的水里含有很多有害的物質(zhì)，喝了會(huì)讓我們生病，影響我們的健康。故B正確。
3.D 細(xì)節(jié)題。根據(jù)文章第三段最后2行Man-made lakes called reservoirs are used for this purpose ,Water from the rains ,other lakes, streams and rivers is collected in the reservoirs ,This water is usually dirty and muddy.可知在這樣的人工湖里的水是很臟的。故D正確。
4..C 推理題。根據(jù)文章倒數(shù)第二段,These microbes are removed by “airing ”the water and by adding a chemical substance called chloring(氯)to the water ,This kills all the microbes in the water ,A fter this the water can be safely used for drinking.可知加入氯是為了殺死水里的病菌。故C正確。
5.C 推理題。本文主要講述的是凈化水的過程，屬于科普類的文章，最可能出現(xiàn)在科普類短文雜志里。故C正確。
考點(diǎn)：考察科普類短文閱讀