考博英语重点语法总结与练习（3）

嘎嘣脆

非谓语动词
　　动名词、分词、不定式。
　　主动或被动。(doing/done, to do /to be done)
　　发生在谓语动词之前还是之后。(doing/ having done /having been done, to do/to have done /to have been)
　　To在什么情况下作介词，什么情况下作不定式引导词。
　　真题剖析
　　(2000) … In the inner cities of America, newspapers regularly report on newborn babies　60　into garbage bins by drug-addicted mothers.
　　60. A. dropped
　　B. to drop
　　C. dropping
　　D.drops
　　(2001.3) A heroin addict, for instance, leads a　59　life: his increasing need for heroin in increasing doses prevents him from working, from maintaining 　　relationships, from developing in human ways.
　　59. A. destructive
　　B. dissatisfied
　　C. damaged
　　D. derivative