学习必备欢迎下载非谓语动词一、动词不定式1、动词不定时的构成不定时的基本形式为:to+动词原形,有时可以不用to,这里的to是不定式符号,本身无词义,动词不定式的否定形式是not+(to+)动词原形
AlthoughJefflovesKFC,hetries____ittoooften
toeatB
noteatC
tonoteatD
nottoeat2、动词不定式的句法功能1)动词不定式作主语动词不定式作主语时,句子的谓语动词常用单数,其位置有以下两种:①把不定式置于句首
Togettherebybikewilltakeushalfanhour
骑自行车到那儿将花费我们半个小时
Tosavemoneynowseemsimpossible
现在好像不可能省钱
②用it作形式主语,把真正的主语不定式置于句后
It'sourdutytotakegoodcareoftheold
Ittakesmetwodaystoreadthebook
Itisdifficultforustofinishwritingthecompositioninaquarterofanhour
Itisstupidofyoutowritedowneverything(that)theteachersays
Itseemedimpossibletosavemoney
考点拓展:itis+adj+forsbtodo
itis+adj+ofsbtodo
的含义及区别Itiskindofyoutohelpme
你能帮我太好了
Itisbeneficialforyoutodosports
运动对你有益
完成下列句子,试试:It'sverydifficult_________metodoit
It'sverykind__________youtodoitforme