It +be动词+形容词（-able）（essential, odd, vital, absurd, regrettable, desirable…）+that从句
It +be动词+名词（pity,shame…）+that从句
It +be动词+过去分词（ordered, begged, voted, moved…）+that从句
部分名词/动词（表示建议，劝告，决定等） +that从句
2. It's （high, about） time that +动词过去式
would rather +动词过去式
真题剖析
（1997） … I wouldn't be truthful if I 47 say that teaching is hard work . …
47. A. do B. did C. don't D. didn't
（1993）…The Cairo newspapers the next day carried banner headlines about the student demonstration 52 , and they 53 that the professor be sent home.
53. A. ordered B. pleaded C. decided D. demanded
练习：Years ago the experts warned us that the car-ownership explosion would demand a lot more give-and-take from all road users. It is high time that we__15__ this message to heart.
15. A. took B. would take C. will take D. should take
（2003.3） It is edifying, and it is a source of inner satisfaction even __54__ other facets of life prove disappointing.
（even if other facets of life should prove disappointing.）
54.A. shall B.will C.would D.should
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