【速记口诀】
一感，二听，三让，四看，半帮助
【妙语诠释】一感：feel；二听：hear，listento；三让：make，let，have；四看：see，notice，watch，ob-serve；半帮助：help。
练习：
1.They knew her very well.They had seen her ___ upfromchildhood.(1988全国)
A.grow B.grew C.was growing D.togrow
2.Theteacher asked us ___ so much noise.(2003北京)
A.dont makeB.not makeC.not making D.not to make
3.My advisor encouraged ___ asummercourse to improve my writing skills.(2004北京)
A.for me takingB.metaking C.for me to take D.me to take
4.The flu is believed ___byviruses that like to reproduce in the cells inside the humannoseand throat.(2004上海)
A.causing B.being caused C.to be causedD.tohave caused
5.-Is Bob still performing？-Im afraid not.He issaid___ the stage already as he has become anofficial.(2005江苏)
A.tohave center B.to leave C.to have been centerD.to be center
6.The motherfelt herself ___ cold and her handstrembled as she read the letterfrom the battlefield.(2006上海)
A.growB.grown C.to grow D.to havegrown
7.Energy drinks are not allowed ___in Australia but arebrought in from New Zealand.(2006上海)
A.to makeB.to be made C.tohave been made D.to be making
答案：1.A 2.D 3.D 4.C5.A 6.A 7.B
