英语语法名词性从句讲解PPT
中职英语语法名词性从句讲解1. 什么是名词性从句名词性从句是在句子中充当名词的从句,它可以在句子中作主语、宾语、表语或同位语。名词性从句通常由连接词引导,...
中职英语语法名词性从句讲解1. 什么是名词性从句名词性从句是在句子中充当名词的从句,它可以在句子中作主语、宾语、表语或同位语。名词性从句通常由连接词引导,常见的连接词有that, whether/if, what, who, which, whom, whose, when, where, why等。2. 名词性从句作主语名词性从句作主语时,常常使用连接词that或whether/if引导。例句1: That he is late is not a surprise to us. (他迟到不足为奇)例句2: Whether/if she will come is still uncertain. (她是否会来尚不确定)3. 名词性从句作宾语名词性从句作宾语时,可以使用连接词that, whether/if, what, who, which, whom等。例句3: I know that he is right. (我知道他是对的)例句4: They are not sure whether/if she can pass the exam. (他们不确定她能否通过考试)例句5: He doesn't know what he should do. (他不知道他应该做什么)例句6: She wants to know who will go with her. (她想知道谁会和她一起去)4. 名词性从句作表语名词性从句作表语时,常常使用连接词that, whether/if, what, who, which等。例句7: His suggestion is that we should leave early. (他的建议是我们应该早点离开)例句8: The question is whether/if he can finish the task on time. (问题是他是否能按时完成任务)例句9: The problem is what we should do. (问题是我们应该做什么)例句10: The answer is who broke the vase. (答案是谁打破了花瓶)5. 名词性从句作同位语名词性从句作同位语时,常常使用连接词that, whether/if, what, who, which等。例句11: The fact that she failed the test disappointed her parents. (她考试不及格这个事实使她父母失望)例句12: The doubt whether/if she can win disturbs him. (她是否能赢得胜利这个疑问困扰着他)例句13: The news what happened shocked everyone. (发生的事情这个消息震惊了每个人)例句14: The question who will take charge remains unanswered. (谁将负责这个问题仍然没有答案)6. 名词性从句的连接词省略在名词性从句中,当宾语从句和主语从句的引导词是that时,通常可以省略。例句15: I think (that) he is a good student. (我认为他是一个好学生)例句16: She said (that) she would come. (她说她会来)注意,当从句置于另一个名词性从句之前时,连接词不能省略。例句17: I believe that he will come and that he is a reliable person. (我相信他会来和他是一个可靠的人)7. 名词性从句的特殊连接词除了常见的连接词that, whether/if, what, who, which等,名词性从句还可以使用特殊的连接词such as, whether...or, either...or等。例句18: Such books as (those) you mentioned are difficult to find. (像你提到的那些书一样的书很难找到)例句19: I don't know whether he will come or not. (我不知道他是否会来)例句20: Either you or he is responsible for the mistake. (要么你要么他应该对这个错误负责)8. 总结名词性从句在句子中扮演着重要的角色,通常可以作为主语、宾语、表语或同位语。常见的连接词有that, whether/if, what, who, which等。在一些情况下,连接词可以省略或者使用特殊的连接词。掌握名词性从句的用法,可以帮助我们更好地表达自己的意思,丰富句子的表达方式。