◎ 题干
句型转换。  
1.Over three-fourths of the gas is nitrogen.(改为同义句)
                        three-fourths of the gas is nitrogen.  
2. Everything will die on the earth without the atmosphere to protect us.(改为同义句)
    Nothing could ________on the earth without the atmosphere to protect us.
3. The chorus(合唱队)of our school consisted of some students and teachers.(改为同义句)
    The chorus of our school_______       some students and teachers.
4. The river is filling with heavily rain.(改为同义句)  
    The river ________of heavily rain.
5. I found that studying English well is more difficult.(改为同义句)  
    I found        ____more difficult____       English well.
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“句型转换。1.Over three-fourths of the gas is nitrogen.(改为同义句)three-fourths of the gas is nitrogen.2. Everything will die on the earth without the atmosp…”主要考查了你对  【系动词】【动词短语】【it的用法】【固定搭配】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。