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关于observe的被动用法hewasobserved--herclosely.A.tofollowB.followsC.followD.followed

题目详情
关于observe的被动用法
he was observed -- her closely.
A.to follow B.follows C.follow D.followed
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答案和解析
选A
observe observe及物动词,作“留心到;注意到;观察”解时,其用法与see,hear等相似,可用于以下句型:① 跟带有不带to 的不定式的复合结构,但在被动结构中,不定式必须带to.如:The woman was observed to follow him closely.有人看到那女子紧跟着他.② 跟带有现在分词的复合结构,表示“注意到的动作”正在进行.如:The police observed him entering the bank with a shotgun.警察看到他带着猎枪进了银行.③ 跟从句.如:He observed how the work was done.他看到那工作是怎样进行的.【拓展延伸】 observe还有“遵守;奉行(法律;习俗)”、“评论;评述;讲”之意.如:Do they observe Christmas Day in that country?那个国家的人过圣诞节吗?He observed that it would probably rain.他说很可
不定式带to
make sb do sth,但是被动sb is made to do,要加to