doubt 后面的连词用whether/ if或that,不知有何规律可循

动词 doubt 后面的从句可由 whether, if 或 that 引出。 Economists doubt whether interest rates will fall in the near future. 经济学家怀疑在不久的将来利率是否会下降。 I doubt if she'll come …

doubt用在肯定意主句中,做名词后跟肯定意同位语从句一般用whether引导; 如: I have doubt whether he is a real doctor. 而否定句主句时只用that从句: There is NO doubt that they will …

动词 doubt 意义为“怀疑,不知道”时,在肯定句中后接if / whether-从句,在否定句和疑问句中后接 that-从句。 例如: (1) Economists doubt whether interest rates will fall in the near …

(1)在否定句和疑问句中,doubt后面接that引导的宾语从句.例如: I don”t doubt that he can finish the task on time.我相信他能按时完成任务. Do you doubt that she will succeed?你怀疑她会成功 …

(1) 在否定句和疑问句中,doubt 后面接 that 引导的宾语从句。 例如: I don”t doubt that he can finish the task on time. 我相信他能按时完成任务。 Do you doubt that she will succeed? 你 …

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