Now，airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash．According to KLM，one of Europe,s biggest airlines，airplanes cannot go under the cloud or over it.Going through the cloud can result in ash getting stuck in the airplane,s engines，causing damage to the plane．

　　The eruption has also caused problems for animals in Iceland.The volcano 1eft ash and sharp，glass like rocks all over the countryside．Farmers are keeping their animals inside to stop them from eating ash-covered grass or the sharp objects．

　　Ⅰ.以约30词概括短文要点。

　　__________________________________________________________________________________________________________________________________________________________________

　　Ⅱ.根据所读短文，选择最佳答案，注意第四题的解题思路。

　　1．What makes Grimsvotn different from other volcanoes?

　　A．It is below ice．

　　B．It lies under the sea．

　　C．It is the largest volcano．

　　D．Its lava affects the airlines．

　　2．What keeps Grimsvotn still?

　　A．The slow flow of water．

　　B．The low water temperature．

　　C．The thick glacier．

　　D．The water pressure．

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