一、理论常识

　　状语从句，属于副词性从句，简单说就是从句在句子中担任状语，分为时间、目的、地点、条件、方式、让步、比较、结果、原因9种状语从句。

　　时间引导词：when , after , before , while , until , till , since , as soon as , everytime , the moment等

　　地点引导词：where , wherever等

　　原因引导词：because , since=now that , as等

　　条件引导词：if , whether , unless , as long as ,on condition that , providing that等

　　结果引导词：so / such ... that , so等

　　目的引导词：in order that , so that等

　　让步引导词：though , although , however , whatever=no matter what even if , even though , as (倒装) 等

　　方式引导词：as , as if等

　　比较引导词:than , as ... as , the more ... , the more ... 等

　　二、真题举例

　　例句1：While formal learning is transmitted by teachers selected to perform this role , informal learning is acquired as a natural part of a child's development .

　　【重点词汇解析】transmit，vt. 传输、传播 vi. 传输、发射信号;(in)formal，adj. (非)正式的

　　【参考翻译】尽管正式的学习过程是由挑选出来担当此角色的教师来进行的，非正式的学习过程却是作为孩子成长的自然一部分而完成的。

　　例句2：While it is true that this competition may induce efforts to expand territory at the expense of others , and thus lead to conflict , it cannot be said that war-like conflict among other nations is inevitable , although competition is .

　　【重点词汇解析】territory，n. 领土、版图;expense，n. 代价、损失 vt. 向……收取费用;inevitable，adj. 不可避免的

　　【参考翻译】虽然这种竞争会引发以他人利益为代价的领土扩张行动，因此也会引发冲突，但却不能认为类似于战争的国家间的冲突不可避免，尽管竞争是不可避免的。

　　例句3： While it is true that to date the Internet seems to be favoring the most developed sectors of the international community over the less developed , this need not always be the case .

　　【重点词汇解析】favor，vt. 喜欢、赞成 n. 喜爱

　　【参考翻译】尽管迄今为止互联网似乎更加青睐国际社会中的发达领域，而非不太发达的领域，情形并不总是如此。

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