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; surfed         B. 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 to   B 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 sold      D 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