例句精讲

1. I was amazed to learn that Picasso produced more than 20 000 pieces of art and that he wasn't just a painter. He drew pictures for books, and was also a sculptor and a photographer.

我惊讶地得知，毕加索一生创作了两万多件艺术作品，而且他不仅仅是一名油画家，他还为图书画插图，还是一名雕刻家和摄影家。

【巧解句构】that Picasso produced more than 20 000 pieces of art和that he wasn't just a painter，均为宾语从句，第二个宾语从句中的引导词that不省略。

【要点剖析】当一个动词接两个或两个以上的that从句作宾语时，that一般不省略，特别是第二、第三个that部分。

【拓展延伸】在以下情况下，宾语从句中的that一般都不省略：

1）that从句作learn, request, suggest, insist, explain, agree, prove, feel, mean等动词的宾语时，that一般不省略。

如：

This experiment proved that Galiheo's theory of falling objects is true.

这个实验证明伽利略的落体理论是对的。

2）当句子的状语部分位于从句的前部时，that不可省。如：

I discovered to my surprise that about half the things were true.

我吃惊地发现事情大半是真的。

3）当主句的谓语动词与宾语从句之间有插入语时，that一般不能省略。如：

Just then I noticed, for the first time, that our teacher was wearing his black silk cap.

这时，我才第一次注意到我们的老师戴着黑色丝帽。

4）当宾语从句的主语是this, that或this, that修饰主语时，that不能省略。如：

He said that that was an excellent idea.

他说那是个极好的主意。

5）当宾语从句是双宾语中的直接宾语时，that不能省略。如：

Mr Smith told the workers that John had worked very hard and that he wanted him to stay.

史密斯先生告诉工人们说约翰工作很努力，他想要他留下来。

6）当that宾语从句的主语是非谓语动词或主语从句时，that不可省。如：

Finally they said rubbing the little girl's leg might help.

后来他们说按摩小女孩的腿也许有用。

7）当主句中的谓语是固定词组时，宾语从句中的that不能省略。如：

Once Aristotle made up his mind that heavy objects always fell faster than light objects, he taught it as a truth to his students.

亚里士多德一旦认定重的物体比轻的物体下落得快，就把它作为真理教给他的学生。

8）当that宾语从句前有it作形式宾语时，that不可省。如：

We consider it important that college students should master at least one foreign language.

我们认为大学生至少掌握一门外语是很重要的。

2. This painting is so valuable that it is difficult to calculate what its price would be if the museum wanted to sell it.

这幅画如此珍贵，如果博物馆想卖了它，都很难为它估价。

【巧解句构】本句运用了so+adj./adv.+that-clause结构，表示"如此......以至于......"；本句还运用了if引导的虚拟语气结构，表示与现在的客观事物相反的情况。【拓展延伸】1）so that, so...that...,such...that...等结构都可引导结果状语从句。如：