大学英语：Americans often say that there are two

Americans often say that there are two things a person can be sure of in life: death and taxes.

　　句中的that引导的是一个宾语从句，例如：Everybody knows that the earth goes around the sun.（众所周知，地球围绕太阳转。）

　　请翻译下面的句子：

　　1) 他知道我不会责怪他。(He knew that I wouldn't blame him.)

　　2) 妈妈说他必须在六点以前回来。(Mother said that he had to be back before 6:00.)

　　3) 我想天气很快会放晴。(I think that it is going to clear up soon.)

　　4) 我相信他对我说了实话。(I believe that he told me the truth.)

　　句中的a person can be sure of …是定语从句，修饰two things, 引导定语从句的关系代词that被省去了。例如：Have you found the book you want?（你找到你要的书了吗？）

　　请翻译下面的句子：

　　1) 他找到了他丢失的那块表。(He found the watch he had lost.)

　　2) 这儿有很多我感兴趣的书。(There are many books I am interested in.)

　　be sure of的意思是"对……确信无疑"，例如：

　　─ Is he going to call us at 9:00? （他会在九点给我们打电话吗？）

　　─ Yes, I am sure of it. （是的，我肯定。）

　　翻译下面的句子，掌握sure的用法：

　　1) I am sure of his sincerity. （我确信他的诚意。）

　　2) You are sure of a warm welcome.（你肯定会受到热烈的欢迎。）

　　3) I don't know for sure whether he will come or not.（我不很确切地知道他是否会来。）

　　4) Make sure that you turn off the light when you leave.（确保在你离开时把灯关掉。）

　　5) Be sure not to forget what your parents said to you.（千万别忘了父母对你说的话。）