新概念英语口语宝典第一册 第152课:消息可靠吗

 　　Lesson 132 Certainty¹ & Not Sure

　　第132课 肯定与不肯定

　　A:Are you positive Joan has passed her math exam?

　　A：你可以肯定琼已经通过数学考试了吗？

　　B:Absolutely.

　　B：当然可以肯定。

　　A:How do you know about it?

　　A：你是怎么知道的？

　　B:Our math teacher told me. And she said Joan got the highest score in our class.

　　B：数学老师告诉我的。她还说琼的成绩是我们里最高的。

1 certainty   

n.必然的事，确定的事实，确信，确实

参考例句：

• I can't say with any certainty where I shall be next week.我不能确切地说下周我在什么地方。
• I know for a certainty that the company has been bought up.我确实知道公司已经被人收购了。