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在英语中,名词性从句是一类非常重要的句子结构。它由一个引导词和一个从句组成,从句在句子中充当名词的角色。名词性从句可以用作主语、宾语、表语或同位语。下面将详细介绍名词性从句的不同类型和用法。
作主语的名词性从句
当名词性从句作为句子的主语时,它通常由引导词“that”或“whether/if”引导。例如:
- That he is a good student is beyond doubt.(他是个好学生是毫无疑问的。)
- Whether he will come to the party is still uncertain.(他是否会来参加派对仍不确定。)
作宾语的名词性从句
当名词性从句作为句子的宾语时,它通常由引导词“that”、“whether/if”、“who”或“whom”引导。例如:
- I believe that he is telling the truth.(我相信他在说真话。)
- Do you know whether she has arrived yet?(你知道她是否已经到达了吗?)
- He asked me who was in charge of the project.(他问我谁负责这个项目。)
- They haven't decided whom to invite to the party.(他们还没有决定邀请谁参加派对。)
作表语的名词性从句
当名词性从句作为句子的表语时,它通常由引导词“that”或“whether/if”引导。例如:
- His only wish is that he could see his parents again.(他唯一的愿望就是能再次见到他的父母。)
- The question is whether we should go or stay.(问题是我们是去还是留。)
作同位语的名词性从句
当名词性从句作为句子的同位语时,它通常由引导词“that”引导。例如:
- The fact that he has failed the exam is disappointing.(他考试失败的事实令人失望。)
- The news that the company is going bankrupt is spreading quickly.(公司即将破产的消息正在迅速传播。)
以上是名词性从句的不同类型和用法。掌握这些用法,将有助于我们更好地理解英语中的复杂句子结构,提高我们的英语水平。