to be sure和 for sure有什么区别?

be sure to do sth 有信心做某事 ; 一定要做某事 ; 一定要 ; 务必 1.To be sure to do, not to feed bear .千万、千万不可喂熊吃东西。2.Be sure to do the sowing in good time.下雨后即播种会更好促进发芽。make sure that、、be sure that后边一般是加从句的。be sure that是一定...

Be sure not to forget it．千万别忘了。3．作定语时，sure表示“可靠的，无疑的”。而certain修饰可数名词时，意为“某一，某些”，修饰抽象名词时，意为“有点，有些”。如：The student made a sure answer．学生作出了确凿的回答。A certain Brown is waiting for you at the gate．门口有...

do"则强调了某种行为的必要性和决心，后面接的是动词不定式，例如"It'ssuretorain"，表明对下雨这一事件的确定预测。简而言之，"be sure of"侧重于对某事的肯定认知，而"be sure to do"则是对行动的坚定决心。两者在语言表达中起着强化意图和把握程度的作用，帮助我们清晰地传达我们的观点和意图。

如是否定句，用whether，不同that。例如：It is not certain whether he will come.2． 在祈使句中通常用sure，不用certain。例如：Be sure to tell me all the news.Be sure and come as soon as possible.Be sure you don’t upset any of them.3．作定语时，sure作“有把握的；肯定的；...

He made a sure answer. 他回答得准确无误。A certain person called on me yesterday. 昨天有个人来找过我。4. 在祈使句中常用sure，不宜用certain。如：Be sure and remember what I told you. 千万要记住我对你讲的话。Be sure to write and tell me all the good news. 务必写信告诉我...

be sure of 后只能加宾语,例如I am sure of it.be sure about后面可以加动名词做宾语.也可以加从句.I am sure about that he will pass the exam./ I am sure about doing sth.

【介词"to"的用法总结】一:表示相对,针对 be strange (common, new, familiar, peculiar, distinct, sensitive, immune, vulnerable, indispensable) to Air is indispensable to life. Aircrafts are vulnerable to interference caused by radiation. This injection will make you immune to infection 二:表示对比,...

就是用法的区别，意思大致相同，表示“确定要做某事”make sure to do sth 就是sure后面跟动词不定式，有表示将来时的意味 如：i make sure to finish this work later.be sure of sth/ doing sth 就是sure 后面跟名词或者动名词 如：i 'm sure of having finished this work be sure that 就...

4. 强调不同的行动方式：- "make sure to do" 表示确保采取某种行动方式。- "make sure of doing" 表示确保某一特定的行动方式已经进行或完成。例句：- Make sure to use a secure password for your online accounts. (在线账户务必使用安全密码，"to use" 表示确保采取某种行动方式)- I made ...

因为后面跟的内容不一样。be sure that后面加一句完整的句子。如：I'm sure that Simon lives here. Simon lives here. 是完整的句子。be sure to do sth. 如：They are sure to be late. be late 是一个动词而不是句子 be sure of+名词 如：We're sure of his innocence.be sure that...