http://www.sina.com.cn 2007年12月27日 10:53
示例1：I sat down beside her. I said nothing.
变为：I sat down beside her and I said nothing.
示例2：He asked me a question. I answered him.
变为：He asked me a question and I answered him.
示例1：When he asked me a question, I answered him.
示例2：I was so angry that I beat him up!
示例3：If you ask me ‘why’, I will answer ‘because’!
示例4：Since you are not feeling well, just lie down and take a good rest.
示例5：Although I have tried my best, I can’t win her heart.
示例6：Wherever I am, I will be thinking of you.
示例7：I went out very early in the morning so that I could avoid the rush hour traffic.
示例1：I sat beside her. I felt very nervous.
可变为：Sitting beside her, I felt very nervous.
或者：I sat beside her, feeling very nervous.
示例2：I want to quit smoking. I eat candies.
可变为：To quit smoking, I eat candies.
示例3：A young man was tired of sleeping on the floor. He saved up for years to buy a real bed.
可以变为：Tired of sleeping on the floor, a young man saved up for years to buy a real bed.
示例4：Jimmy was dressed up as Father Christmas. He was accompanied by a guard of honor of six pretty girls. He set off down the main street of the city. He rode a baby elephant. The elephant was called Jumbo.
可以变为：Dressed up as Father Christmas and accompanied by a guard of honor of six pretty girls, Jimmy set off down the main street of the city, riding a baby elephant called Jumbo.
This is the only book.
I read the book during the holiday.
两句的重合点在the book上面；将第二句中的the book抽出来，放到第一句book后面，其它内容向后甩。这样，我们就会看到the only book后面马上又在重复the book。为了避免重复，我们去掉the book，而换用另外一个词去替换，这个词就是指物的which或that。因为这里的book有only在修饰，所以，最终我们选用that；又因为that在定语从句中作宾语，所以，可以省略。
She is the girl.
The girl’s father is my boss.
She is the girl whose father is my boss.