作业帮有关非谓语作定语的3道选择题
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有关非谓语作定语的3道选择题
(1)Troops in Guantanamo say they are serving a role as important,if not as dangerous as the one___by soldiers in Iraq now.
A being played B to be played C having been played D is being played
(2)If the project___by the end of this year is delayed,the manager will be dismissed.
A to be completed B being completed C is completed D has been completed
(3)l managed to obtain a ticket for the opera ,but ___at the back of the theatre ,I could neither see nor hear clearly.
A seated B sat C seating D sit
三道题的答案是1A2A3A
请问为什么第一题不选B,第二题不选B,第三题其他选项都错在哪
还有就是不定式作定语和分词作定语的区别
(1)Troops in Guantanamo say they are serving a role as important,if not as dangerous as the one___by soldiers in Iraq now.
A being played B to be played C having been played D is being played
(2)If the project___by the end of this year is delayed,the manager will be dismissed.
A to be completed B being completed C is completed D has been completed
(3)l managed to obtain a ticket for the opera ,but ___at the back of the theatre ,I could neither see nor hear clearly.
A seated B sat C seating D sit
三道题的答案是1A2A3A
请问为什么第一题不选B,第二题不选B,第三题其他选项都错在哪
还有就是不定式作定语和分词作定语的区别
其实很简单的,主要是看非谓语动词与逻辑主语的关系,是被动还是主动；其次是看时态,是过去现在还是将来.
1、涉及到的词组是play a role in,因为全句的谓语动词是say,所以play就要变成非谓语.排除D,因为D是谓语动词形式.接下来就考虑play的非谓语形式是哪种了.因为play和其逻辑主语role是被动关系（role自己不能play,只能被play),再加上句子的时间状语now,答案就定在A了,表示正在、被动.B表示将来的,还没有发生.C表完成,已经发生.BC都和now不符,所以不入选.
2、同理.一看句子,谓语已经出现,即will be dimissed,所以空格处必须是非谓语,马上排除C、D.再看,complete和其逻辑主语project是被动关系,project不能自己complete,只能由人们complete,所以是被动的.A、B都表被动关系,但是,B表示工程正在被完成（从逻辑上也可推断是错的,完成就是完成,怎么会有正在完成或正在被完成的说法呢?）,而根据句子的时间状语by the end of this year,显然是表示将来的情况,工程还没有被完成,所以选择不定式,选A表将来、被动.
3、经常考的题.sit 和seat.且看分析.
此处but是连词,后面接的是一个句子,我们看到此分句的谓语动词已经出现,所以空格里要填非谓语动词,因此排除D.B中sat是sit的过去分词,是非谓语动词,但是,sit和其逻辑主语I是主动关系,是I sit,而不是I was sat,因此,排除B.
此题涉及到一个词组,即seat oneself,意思是入座,坐下,如：Tom seated himself in the armchair.Tom坐在扶手椅上.在反身代词出现的情况下,用主动形式.但是,反身代词去掉之后,就要用被动了.如：Tom is seated in the armchair.表示同样的意思,Tom坐在扶手椅上.(不要翻译成Tom被坐在扶手椅上).这个句子里没有了反身代词myself,所以逻辑上要是被动的.所以选A.如果C是seating myself,则也是正确的.
明白了吗?
1、涉及到的词组是play a role in,因为全句的谓语动词是say,所以play就要变成非谓语.排除D,因为D是谓语动词形式.接下来就考虑play的非谓语形式是哪种了.因为play和其逻辑主语role是被动关系（role自己不能play,只能被play),再加上句子的时间状语now,答案就定在A了,表示正在、被动.B表示将来的,还没有发生.C表完成,已经发生.BC都和now不符,所以不入选.
2、同理.一看句子,谓语已经出现,即will be dimissed,所以空格处必须是非谓语,马上排除C、D.再看,complete和其逻辑主语project是被动关系,project不能自己complete,只能由人们complete,所以是被动的.A、B都表被动关系,但是,B表示工程正在被完成（从逻辑上也可推断是错的,完成就是完成,怎么会有正在完成或正在被完成的说法呢?）,而根据句子的时间状语by the end of this year,显然是表示将来的情况,工程还没有被完成,所以选择不定式,选A表将来、被动.
3、经常考的题.sit 和seat.且看分析.
此处but是连词,后面接的是一个句子,我们看到此分句的谓语动词已经出现,所以空格里要填非谓语动词,因此排除D.B中sat是sit的过去分词,是非谓语动词,但是,sit和其逻辑主语I是主动关系,是I sit,而不是I was sat,因此,排除B.
此题涉及到一个词组,即seat oneself,意思是入座,坐下,如：Tom seated himself in the armchair.Tom坐在扶手椅上.在反身代词出现的情况下,用主动形式.但是,反身代词去掉之后,就要用被动了.如：Tom is seated in the armchair.表示同样的意思,Tom坐在扶手椅上.(不要翻译成Tom被坐在扶手椅上).这个句子里没有了反身代词myself,所以逻辑上要是被动的.所以选A.如果C是seating myself,则也是正确的.
明白了吗?