Children’s brains can’t develop properly_______ they lack proteinA．whenB．sinceC． - 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 can’t develop properly_______ they lack protein

A．when

B．since

C．because

D．unless

答案

解析

本题考查when的一个特殊用法。在本题中的when引导的是一个条件状语从句，相当于if。整个句子的意思是：如果孩子缺少蛋白质，大脑就不能正常发育。

核心考点

试题【Children’s brains can’t develop properly_______ they lack proteinA．whenB．sinceC．】；主要考察你对连词等知识点的理解。[详细]

举一反三

A model or an experiment in a science class can help students see things which would ______ remain hidden.

A．otherwise

B．still

C．thus

D．therefore

题型：不详难度：| 查看答案

Mr. Zhang is mild in character. He never shouts__________ he is very angry.

A．ever before

B．before

C．until

D．ever when

题型：不详难度：| 查看答案

Countless people in developing countries no longer suffer malnutrition.______，poverty remains a problem worldwide.

A．While

B．Nevertheless

C．Besides

D．In addition

题型：不详难度：| 查看答案

What the boy enjoys _____ to have a room of his own.

A．being	B．to be
C．is	D．are

题型：不详难度：| 查看答案

—What should we pay more attention to if we go north in winter, Mum?
—Nothing much. Take warm clothes_________
the weather is cold.

A．as long as

B．now that

C．if

D．in case

题型：不详难度：| 查看答案

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