1.有大量动词可跟that引起的从句作宾语：

　　They proved that the world was round.

　　他们证明地球是圆的。

　　I hope that I have said nothing wrong.

　　希望我没说错什么话。

　　She never doubted that she was right.

　　她从不怀疑她是对的。

　　在某些动词后连词that常常省略：

　　I know you can do it.

　　我知道你能做这事。

　　He said there's been an accident.

　　他说出事了。

　　I guess we'll leave now.

　　我想我们得走了。

　　She felt she had little energy left.

　　她感到一点力气都没有了。

　　I heard you were here.

　　我听说你在这儿。

　　2.在某些动词后，作宾语的从句中要用动词原形(美国用法)或用should+动词原形(英国用法)：

　　She insisted that I (should) be there.

　　她坚持要我出席。

　　The situation requires that we (should) be there.

　　形势要求我们呆在那里。

　　They urged that he see her.

　　他们敦促他去见她。

　　3.还有不少动词后跟连接副(代)词等引起的宾语从句：

　　Do you see now why I did it?

　　你现在明白我为什么这样做了?

　　I don't care what they say.

　　我不在乎他们怎么说。

　　I'll see whether I can find time to do it.

　　我要看我是否有时间做这件事。

　　Try and find out if she is interested in going.

　　设法了解她是否有兴趣去。