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60。B.has been openedC.has openedD.has been open【答案】 D 【解析】【分析】open是非延續(xù)性動(dòng)詞,和表示一段時(shí)間的時(shí)間狀語連用必須轉(zhuǎn)化為延續(xù)性動(dòng)詞be ,本句應(yīng)用現(xiàn)在完成時(shí)態(tài),故選D?!军c(diǎn)評】考查open轉(zhuǎn)化為be open, be open里的open是形容詞,不能加ed..13.—I39。m sorry for being late.—Never mind. The meeting ______for only 5 minutes. This way, please.A.has begunB.has endedC.has been on【答案】 C 【解析】【分析】句意:——對不起,我遲到了?!獩]關(guān)系.會(huì)議只開了5分鐘,請這邊走。for+段時(shí)間,通常用于現(xiàn)在完成時(shí)態(tài),結(jié)構(gòu)是have/has+動(dòng)詞的過去分詞,begin和end都是短暫性動(dòng)詞,不能用于現(xiàn)在完成時(shí)態(tài)中表示動(dòng)作或狀態(tài)的延續(xù),因此A,B不正確.has been on在進(jìn)行,開著(的狀態(tài)),故選C【點(diǎn)評】現(xiàn)在完成時(shí)表示延續(xù)性的狀態(tài)。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(shí),瞬間動(dòng)詞fall不能和since引導(dǎo)的時(shí)間狀語從句連用,故用延續(xù)性動(dòng)詞be。故選D。【點(diǎn)評】本題考查現(xiàn)在完成時(shí)中非延續(xù)性動(dòng)詞和延續(xù)性動(dòng)詞的轉(zhuǎn)換。15.All the students _______ very hard over the last three years.A.worksB.has workedC.have workedD.worked【答案】 C 【解析】【分析】Over the last three years, 用于現(xiàn)在完成時(shí),又由于主語是復(fù)數(shù),故選C。【點(diǎn)評】現(xiàn)在完成時(shí)的時(shí)間狀語要掌握。16.— have you had the mobile phone?—Since 2015. A.How oftenB.How longC.How soonD.How many【答案】B 【解析】【分析】句意:你什么時(shí)候有的手機(jī)?自從2015年。詢問的是從什么時(shí)候開始,也就是時(shí)間長度。故B選項(xiàng)正確?!军c(diǎn)評】考查特殊疑問句的辨析。17.It has been three years since I ______ a teacher.A.beeB.becameC.beingD.to bee【答案】 B 【解析】【分析】題意:現(xiàn)在完成時(shí)里,since從句里動(dòng)詞應(yīng)用一般過去時(shí)。故選B?!军c(diǎn)評】考查現(xiàn)在完成時(shí)和表示一段時(shí)間的時(shí)間狀語的連用用法,理解題意,即可得出答案。18.His cat has ________ for five weeks.A.diedB.been dead