Question

be sure to do sth和be sure of doing sth的区别

Answer 1

1、含义不同

be sure to do sth的意思是肯定、一定、谅必、势必。

be sure of doing sth的意思是确信、自信、信得过、有把握。

2、用法不同

be sure to do sth

用法：be sure to do一般指别人认为主语可以做某事。

be sure of doing sth

用法：be sure of doing一般指主语自己认为可以做到某事。

3、侧重点不同

be sure to do sth主语既可以是人称主语，也可以是非人称主语。

be sure of doing sth主语只能是人称主语，而不可能是非人称主语（除非指人格化的事物）。

be sure to do sth和be sure of doing sth的例句：

My father is sure to live to a hundred.

My father is sure of living to a hundred.

第一句的意思是“我父亲肯定能活到一百岁”。代表说话人（我）的看法或判断。

第二句的意思是“我父亲自信能活到一百岁”。代表作为主语的人（我父亲）的看法或判断。

1、Be sure to keep your eyes open for it.

译文：务必留心注意它。

2、I’m sure of knowing you well.

译文：我确信对你十分了解。