S + Vi + prep. + O
prep. =? Pre-position
预先 定位
at, on, in, for, to, from, through, by, during, forward,
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Vi + Prep.=? 动词(动介)短语
Vi 可以由 prep引导O
look at, look for, look into, look after
think about, think of, ....
不仅掌握动词,而且要掌握高频的动介组合的用法
看! Look. (Vi)
看我! Look at me. (Vi+prep +O)
每个人都在等待。Every waits. (S + Vi)
每个人都在等待一些东西。Every waits for something. (S+ Vi+ prep + O)
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