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1.It is...to do sth:做某事是....
解析:It 是形式主语,后面一半接形容词做表语,to do sth是不定式短语作真正主语。
2.make to do和make doing是两种表达方式
解析:make、have、let三个为使役动词,其后跟省略to的不定式作宾语补足语,即:make\have\let sb. do sth.(让某人做某事),例如:The teacher made him wait outside.(主动语态)
在被动语态的句子中,则要还原不定式的符号to,即:He was made to wait outside.
也有make\have sb. doing sth.的结构,意思为:让某人一直做某事,强调动作的持续性。例如:The boss made the workers working from dawn to dark.(老板让工人们从黎明一直工作到天黑.)
另外还有make\have sth. done,指让别人帮助完成某事,例如:He made\have his bike repaired.(他让人帮他修理自行车.)
(未完待续)
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原文地址:http://www.cnblogs.com/wangduo/p/5578460.html