be sure和make sure的区别,make sure 和ensure的区别

网友回答

▲make sure意为“确保”“弄清楚”，后接介词短语、不定式或从句。如：
　　（1）Have you made sure of the time of the train?
　　火车开车的时间你搞清楚了吗？
　　(2)He arrived at the cinema early to make sure of a seat.
　　为保证搞到座位，他一大早就到了电影院。
　　(3)I only e to make sure that everything was all right.
　　我只是来弄清楚是否一切都没有问题。
　　(4)We made sure you were not ing today.
　　我们确信你今天不来了。
　　【注】请注意make sure, be sure, for sure的区别：be sure后接不定式时，意为“一定”“必定”“准会”，若跟of或about或从句，作“肯定”“有把握”解释；to be sure作插入语时，意为“的确”“诚然”。如：
　　（5）Be sure to write and tell me all the news.
　　一定要写信告诉我所有的消息。
　　(6)She is sure to find out the truth tonight.
　　她今晚一定会把真相搞清楚。
　　(7)She is not pretty, to be sure, but she is very clever.
　　她的确不漂亮，但是她很聪明。
　　(8)I’m not quite sure of his telephone number.
　　我不大清楚他的电话号码。
　　▲for sure 意为“肯定地”“毫无疑问地”。如：
　　(9)I don’t know it for sure.
　　这事我不敢肯定。
　　(10)I don’t know for sure that he was dead.
　　我确实不知道他已经去世了。

网友回答

To make sure that +句子
　　To ensure+名词或名词短语