keep doing和keep sth doI was so tired that i couldn't keep my eyes ______.A.opening B.open C.opened D.to open.为何选B而不是选A?
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keep doing和keep sth do
I was so tired that i couldn't keep my eyes ______.A.opening B.open C.opened D.to open.
为何选B而不是选A?
B
keep sth.+形容词 把...保持在...状态
类似有:keep one's eyes open;keep one's eyes closed
因为open本身可以作为形容词,而close作形容词是"近"的意思,所以加ed,用过去分词作形容词.
这个是表示 保持一种什么状态
在这儿open是形容词,不是动词~~~~
keep sth adj.
keep doing sth. or keep sth.+adj
本体应选B
choose [b]
keep doing是指一直在做的,表示一种意愿.
而keep sth./sb. do是指让某人或某事处于某种状态.有人让它去做的意思.
所以选b.
在出现表示某种状态的形容词,如:open,closed时,要用keep sth adj.
keep doing 一直在做某事
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