Some of my colleagues and I once interviewed and followed approximately 500 terminally ill patients in order to find out what they could teach us and how we could be of more benefit， not just to them but to the members of their families as well.（目的）
（4） 含有诸多that的混合复合句
eg. Researchers have established that when people are mentally engaged， biochemical changes occur in the brain that allow it to act more effectively in cognitive areas such as attention and memory.
4. 倒装句
eg. But rarely is success so mysterious.
Pinned to their drawing boards are blueprints for improved quake-resistant buildings.
Should you break the rule against staring at a stranger on an elevator， you will make the other person exceedingly uncomfortable， and you are likely to feel a bit strange yourself.
5. 强调句
eg. It is precisely this kind of conversation that is of importance when we are seeking to develop our reading to meet the new demands being placed upon us by studying at a higher level.
It was to Maury of the US Navy that the Atlantic Telegraph Company turned，in 1853， for information on this matter.
6. 双重否定句
eg. If a patient at Beth Israel is not responding to treatment， it is not uncommon for his nurse to propose another approach to his doctor.
No school I have taught in has ever ignored spelling or considered it unimportant as a basic skill.
7. 省略句
eg. Called smart buildings， the structures respond like living organisms to an earthquake‘s vibrations.
8. 现在分词与过去分词作定语
eg. In addition， changes made to the construction codes in Los Angeles during the last 20 years have strengthened the city’s buildings and highways， making them more resistant to quakes.
The next test was more complex， requiring all to scan sequences of 20 identical letters and respond the instant one of the letters transformed into a different one.
A decade ago， adapting the infrared scanning technology developed for military purposes and other satellites， physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress.