Children’s brains cannot develop properly _________ they lack protein.A．becauseB - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

Children’s brains cannot develop properly _________ they lack protein.

A．because

B．since

C．when

D．unless

答案

解析

试题分析：整个句子的意思是：如果孩子缺少蛋白质，他们的大脑就不能适当的发展。在本题中的when引导的是一个条件状语从句，相当于if。Because因为，since自从，因为，unless除非，所以选C。

核心考点

试题【Children’s brains cannot develop properly _________ they lack protein.A．becauseB】；主要考察你对连词等知识点的理解。[详细]

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