A. breaks B. has broken C. were broken D. had been broken

　　(2)Don’t handle the vase as if it______ made of steel. (2017BJ)

　　A. is

　　B. were

　　C. has been

　　D. had been

　　(3) Little Bob is often educated by his parents to be good and friendly to anybody even if

　　.

　　A. attacking

　　B. is attacked

　　C. to be attacked

　　D. attacked

　　四、语法讲解

　　过去分词

　　The boy injured in the accident was taken to hospital.

　　在车祸中受伤的男孩被送到医院去了。

　　(2)分词作状语done：与句中主语构成逻辑上的动宾关系。United, we stand; divided, we fall.

　　团结，则屹立；分裂，则败亡。【注意】done与having been done都可在句中作状语，与句子的主语构成动宾关系，having been done则强调动作先于谓语动词（主句的动词）发生，且后面一般跟明显的时间状语。试比较：

　　Asked about his family, he made no answer. 当被问到他的家庭情况时，他没有回答。Having been kept in the cage for half a day, the bird became hungry.被关在笼子里半天后，这只鸟饿了。The disc, digitally _____ in the studio, sounded fantastic at the party that night. (S04)

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