新概念英语3、4册连读 ?巩固+提升
1.Hurry up!The play __________ for ten minutes .
A.has begun B.had begun
C.has been on D.began
解析：现在完成时中,非延续性动词不能与for和since引导的表示一段时间的状语连用,通常是用相应的延续性动词来代替。故应为C
2.??-______?you?______anywhere?before??
? ? -Yes,?but?I?can"t?remember?where?I______?
A.?Did;?surf;?surfedB.?Have;?surfed;?surfed?
C.?Did;?surf;?have?surfed?D.?Have;?surfed;?have?surfed
解析：据before可知,应用现在完成时，故选D。
3.The?number?of?the?students?in?our?school?_______?1200. ?
A?is?added?up?toB?has?been?added?up?to?
C?adds?up?to??D?have?added?up?to
解析：D
4.Harry Potter is a very nice film .I_______ it twice .
A. will see B. have seen C. saw D.see
解析：现在完成时还与once(一次)，twice(两次)，three times(三次)，several times(几次)等表示重复次数的词语连用。故应选B。
5.These?kinds?of?shoes?______?well. ?
A?were?not?sold??B?won"t?be?sold??C?are?not?soldD?don"t?sell
解析：D
6.The first use of atomic weapons was in 1945, and their power ______ increased enormously ever since.
A. is ? ? B. was ? ?C. has been ? ? ?D. had been
解析：因为ever since的意思是“从那时(1945年)起一直到现在”，表示从过去某一时刻起一直延续到现在的动作或状态，要用现在完成时，现在完成时由“have /has+过去分词”构成，所以选C。
7.Years ago we didn’t know this, but recent science ______ that people who don’t sleep well soon get ill.
A. showed ? ?B. has shown ? C. will show ? ? ? ? ? ? ? ?D. is showing
解析：由表示对照的Years ago和recent可知，“以前不知”，但“现在已经证明了”，所以用现在完成时。故应选B
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