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詞要具有延續(xù)性,left是 leave的過去分詞,是短暫性動詞,不能和時間段連用,故選D?!军c評】本題考查延續(xù)性動詞和短暫性動詞的轉換。13.Great changes in my hometown in the last few years. A.took placeB.will take placeC.have taken placeD.have been taken place【答案】C 【解析】【分析】句意:過去幾年我的家鄉(xiāng)發(fā)生了巨大的變化。in the last few years意為“在過去的幾年里”,用于現(xiàn)在完成時。take place“發(fā)生”沒有被動語態(tài)。故答案選C。【點評】考查現(xiàn)在完成時。14.Mike used to be a top student, but he behind since he lost himself in puter games.A.fellB.has fallenC.wasD.has been【答案】 D 【解析】【分析】句意為“Mike過去是尖子生,但自從迷上電子游戲以來成績落后了”。由since可知but后的主句用現(xiàn)在完成時,瞬間動詞fall不能和since引導的時間狀語從句連用,故用延續(xù)性動詞be。故選D?!军c評】本題考查現(xiàn)在完成時中非延續(xù)性動詞和延續(xù)性動詞的轉換。15.A number of tourists _____ Yangzhou many times because such a beautiful city. A.have been toB.has been toC.has gone toD.have gone to【答案】 A 【解析】【分析】句意:很多游客多次去過揚州,因為它是如此美麗的一個城市。have been to,表示去過某個地方,have gone to,表示去了某地,還沒回來。many times是很多次,游客們應該是去過很多次,用have/has been to+地點,由于主語是復數(shù),助動詞用have,故選A?!军c評】考查現(xiàn)在完成時,注意have been to表示去過回來了,have gone to表示去了還沒回來。16.Mike began to work in the factory in 2013.He there for four years. A.is workingB.was workingC.worksD.has worked【答案】D 【解析】【分析】句意:邁克在這里工作已經(jīng)4年了。一直持續(xù)的狀態(tài)用現(xiàn)在完成時。故D選項正確?!军c評】考查現(xiàn)在完成時。17.—What about watching the movie Big Fish tomorrow?—Oh, I it already.A.watchB.have watchedC.will watchD.am watching【答案】 B 【解析】【分析】明天去看電影大魚怎么樣?哦,我已經(jīng)看過了。already是完成時的標志,故選B。【點評】聯(lián)系句意,注意辨析關鍵的詞語,來判斷所填之詞。18.I can39。t get into my room now because I _______ my key.A.loseB.will loseC.have lostD.am losing【答案】 C 【解析】【分析】我不能進屋了,因為我已經(jīng)丟了我的鑰匙。已經(jīng)發(fā)生的事,用現(xiàn)代完成時。【點評】考查時態(tài)的用法。19.Little Tom his home for more than ten years.A.16