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。B.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?!军c(diǎn)評】現(xiàn)在完成時(shí)的時(shí)間狀語要掌握。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?!军c(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.The tall building here for 100 years.A.isB.wasC.has beenD.is been【答案】 C 【解析】【分析】那幢高樓在這里已經(jīng)有100年了。根據(jù)for 100 years可知“高樓在這里”是過去發(fā)生的動(dòng)作一直持續(xù)到現(xiàn)在,要用現(xiàn)在完成時(shí)態(tài),其謂語動(dòng)詞形式為have/has+動(dòng)詞過去分詞。故選C。【點(diǎn)評】此題考查現(xiàn)在完成時(shí),平時(shí)應(yīng)多歸納總結(jié)各種時(shí)態(tài),語態(tài)和句式的結(jié)構(gòu)及用法。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.I a cold. I am not feeling well nowA.caughtB.have caughtC.was catchingD.had caught【答案】 B 【解析】【分析】句意:我感冒了,我現(xiàn)在不舒服。catch a cold意為“感冒”。由句意可知應(yīng)用現(xiàn)在完成時(shí)。故選B?!军c(diǎn)評】考查現(xiàn)在完成時(shí)。18.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(yáng)州,因?yàn)樗侨绱嗣利惖囊粋€(gè)城市。have been to,表示去過某個(gè)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(yīng)該是去過很多次,用have/has been to+地點(diǎn),由于主語是復(fù)數(shù),助動(dòng)詞用have,故選A。【點(diǎn)評】考查現(xiàn)在完成時(shí),注意have been to表示去過回來了,have gone to表示去了還沒回來。19.My mother a good example for me since I was young.