Read the passage and fill in the blanks with proper words. (在短文的空格内填入适当的词，使其内容通顺，首字母已给，每空格

Read the passage and fill in the blanks with proper words. (在短文的空格内填入适当的词，使其内容通顺，首字母已给，每空格限填一词): 6%
Deserts(沙漠) do not stay the same size. Sometimes they grow bigger. Sometimes they get s 【小题1】 . The world’s biggest desert , the Sahara, is in Africa. Right now, the Sahara Desert is growing fast.
Why is the Sahara growing? In some places, people farm too much. In other places, a 【小题2】 eat all the grass. Or people cut down the trees. This makes the soil weak. Weak soil lets the desert grow.
Why is it a p 【小题3】 ? People cannot grow food in the desert. People cannot build houses, hospitals, or schools in the desert. So people must l 【小题4】 their homes.
What can people do? They can plant trees. They can also f 【小题5】 less. These things make the soil stronger. Maybe the Sahara will stop g 【小题6】 . It’s a big problem. Many people must work together to solve it.smaller

(答案→)smaller 解析：这篇短文主要讲述了沙漠不会持续同一个大小，有时变大，有时变小，世界的最大沙漠撒哈拉沙漠正在变快，为什么撒哈拉沙漠变化了？【小题1】考查形容词及语境的理解。上文提到Sometimes they grow bigger.可知下文get smaller，故填smaller。【小题2】考查名词及语境的理解。根据eat all the grass可知此空应该是动物，故填animals 【小题3】考查名词及语境的理解。根据文中倒数第二段内容的理解可知问的是为什么它是个问题？故填problem。【小题4】考查动词及语境的理解。根据People cannot grow food in the desert. People cannot build houses, hospitals, or schools in the desert.可知人们必须离开他们的家。故填leave。【小题5】考查名词及语境的理解。根据They can plant trees.可知他们可能耕种的更少，故填farm【小题6】考查动词及语境的理解。根据对文章最后一段内容的理解可知撒哈拉可能将停止生长，stop doing sth.是停止做某事，故填growing。

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