he made up his mind, nothing could change it.A．BeforeB．UnlessC．WhenD．Onc

题型：不详难度：来源：

he made up his mind, nothing could change it.

A．Before

B．Unless

C．When

D．Once

答案

解析

试题分析：考查连词的用法：A.Before在…前面，B除非，C当…时候，D.once“一旦”，句意是：一旦他下定决心，没有什么可以改变。选D。
点评：此题主要考查连词的辨析，选择连词主要是看前后句的关系，因果关系用表因果的连词，转折关系用转折连词，并列关系用并列连词，要求考生具有一定的句子分析能力和词义辨析能力。

举一反三

—May I go out tonight?
—Of course you can, _____ you promise to be back before 10 o’clock.

A．as soon as

B．as well

C．as long as

D．as usual

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____ I can see, there is only one possible way to keep away from danger.

A．As long as

B．As far as

C．Just as

D．Even if

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I was glad to meet Jenny again, I didn"t want to spend all day with her.

A．But

B．and

C．so

D．or

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I took my driving license with me on holiday, I wanted to hire a car.

A．in case

B．even if

C．ever since

D．if only

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From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.

A．why

B．how

C．because

D．whether

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