--- Why does the lake smell terrible?--- Because large quantities of water _____
题型:不详难度:来源:
--- Why does the lake smell terrible? --- Because large quantities of water _________.A.have polluted | B.is being polluted | C.has been polluted | D.have been polluted |
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答案
D |
解析
试题分析:表示动作发生在过去,但一直持续到现在,并且有可能继续持续下去,故用现在完成时,又因为主语“water”与动作“pollute”之间是被动关系,故用被动语态,所以这里需要用现在完成时的被动语态。 点评:英语中的时态主要由动词的形式决定,因此在学习英语时态时,要注意分析动词形式及具体语境,想象在那个特定的时间动作所发生的背景,这个动作是经常性动作、一般性动作、进行性动作、完成性动作还是将要发生的动作。语态是动词的一种形式,表示主语和谓语动词之间的逻辑关系,被动语态表示主语是谓语动词所表示的动作的承受者。 |
举一反三
It i s the second time that the poor area_______.A.had been visited | B.has been visited | C.was visited | D.is visited |
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— I hope you liked the concert last night. — How on earth do you know I went to the concert? I __________ you. A.haven’t told | B.hadn’t told | C.didn’t tell | D.won’t tell |
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They are living with their parents for the moment because their own house __________.A.has been rebuilt | B.is being rebuilt | C.is rebuilt | D.has rebuilt |
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---The president _____ by his doctor today that his cancer has come back.A.informs | B.has informed | C.has been informed | D.is being informed |
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—Remember the first time we met? —Sure.You__________ the novel Pride and Prejudice in the library. A.had borrowed | B.have borrowed | C.were borrowing | D.borrowed |
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