The air ______ different gases _____ together.A．consist of, mixingB．is made up o - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

The air ______ different gases _____ together.

A．consist of, mixing	B．is made up of, mixed
C．consisting of, mixed	D．makes up, mixing

答案

解析

试题分析：考查固定词组。固定词组consist of="be" made up of由…组成；consist of没有被动语态，没有进行时。本题第二空的gas与mix构成被动关系，故使用过去分词的形式mixed。句意：空气是有混合在一起的不同的气体组成的。故B正确。
点评：固定词组consist of="be" made up of由…组成；consist of没有被动语态，没有进行时。本题要注意分析句子结构，第一空所填的是句子的谓语动词，第二空的mixed together是修饰名词gases.

核心考点

试题【The air ______ different gases _____ together.A．consist of, mixingB．is made up o】；主要考察你对动词及动词短语辨析等知识点的理解。[详细]

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