It is said that sandstorms will become more ________ as a result of global warming.

Those who have ______floods and sandstorms knows the importance of environmental protection.

A.gone over   B.gone through   C.got through    D.got over

　　Dear editor,

　　In the past my hometown was used to be beautiful place.　　　　　　　　　　　　   1．________

Thick trees and green grass could be seen in everywhere. In　　　　　　　　　　　　　　 2．________

order to build house and grow more crops, people cut down　　　　　　　　　　　　　　 3．________

more and more trees. With time went on, the whole forest was　　　　　　　　　　　　  4．________

almost destroyed. Gradually the green hills have changed into　　　　　　　　　　　　    5．________

wasteland. As a result, sandstorms struck us now and then, from　　　　　　　　　　  6．________

which we suffer a lot. However, I do hope all the people should　　　　　　　　　　　　 7．________

realize the terribly result of not caring about our environment.　　　　　　　　　　　　    8．________

What’s more, they should take good care of the forests and plant　　　　　　　　　　   9．________

trees instead cutting them down to improve our living conditions.　　　　　　　　　　  10．________

After several days’ warm weather around the New Year’s Day，a strong cold wave with a sandstorm from Mongolia attacked Tianjin Sunday afternoon.
From 3 o’clock p.m.，the strong cold wave from Mongolia engulfed（吞沒）most areas of North China and the biggest wind-force was 7.Tianjin also suffered this year’s first sandstorm with the cold wind whistling.The sky became dusky and the air was permeated with sand.By 11 o’clock at night，the wind became weaker and the sandstorm died down.From Monday morning，the northern areas had a big drop in temperature.It is learned that flu and the infection of the upper respiratory tract are easy to be infected due to the severe pollution by dust in the air.Relevant experts remind residents to pay attention to their health care.

1. 1.

   .The underlined word“permeated”most probably means______.

   1. A.
      cleared
   2. B.
      filled
   3. C.
      blowing
   4. D.
      replaced
2. 2.

   We learn that ______from the passage.

   1. A.
      sandstorms result in the fall of temperature
   2. B.
      we can easily get infected by the dusty air
   3. C.
      it is usually warmer before sandstorms come
   4. D.
      sandstorms usually come around the New Year’s Day

The city is believed      over by sandstorms from AD200 to AD400.