题目内容
4.The sun _____ we get heat and light is the most important source of energy.( )A. | which | B. | that | C. | from which | D. | from it |
分析 我们能从中得到光和热的太阳是最重要的能源来源.
解答 答案:C 考查限制性定语从句.在get sth.from…中,from表示来源,排除A、B项,缺少介词;D项中缺少连词,也应排除.故选D,which引导限制性定语从句.
点评 引导定语从句的关系代词有who,whom,whose,which,that等和关系副词where,when,why等.关系代词和关系副词在定语从句中担任句子成分.在定语从句中,关系代词或关系副词都代替先行词在从句中充当一定的成分,如果该从句中缺少主语、表语、宾语或定语,就要用关系代词来连接从句;如果从句中缺少状语,就得用关系副词来连接从句.
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