第2卷 词汇语法单选（动词与短语）-【2027版】辽宁省高职院校单招考试（中职生）《英语45分钟训练卷》（原卷版+解析版）

编写说明：本卷依据最新版《中等职业学校英语课程标准》和历年真题编写。本系列定位为45分钟训练卷，用于课堂限时训练、周测检测和阶段复习。本卷为词汇语法单选（动词与短语）专项，语境覆盖校园生活、家庭生活、日常服务和简单职场场景，训练学生在短句中准确辨析语言形式和交际功能。 【2027版】辽宁省高职院校单招考试（中职生）《英语45分钟训练卷》 第2卷 词汇语法单选（动词与短语） 考试时间：45分钟 满分：100分 班级______姓名______学号______成绩______ 词汇语法单选（共50小题；每小题2分，满分100分） 根据句意及语法要求，从每题A、B、C、D四个选项中，选出一个最适合的答案。 1. Every morning, the monitor ______ the windows before class begins. A. open B. opened C. opening D. opens 2. The students ______ a safety video in the workshop yesterday. A. watch B. are watching C. watched D. will watch 3. Listen! Someone ______ an English song in the next room. A. sings B. sang C. will sing D. is singing 4. When I got to the bus stop, many workers ______ for the bus. A. wait B. are waiting C. were waiting D. will wait 5. Next Friday, our class ______ a visit to the city library. A. has B. will have C. had D. having 6. I ______ this dictionary for three years. A. use B. used C. am using D. have used 7. The classroom ______ after school every day. A. cleans B. cleaned C. is cleaning D. is cleaned 8. The notice ______ on the board just now. A. puts B. is putting C. was put D. putting 9. More trees ______ around the school next spring. A. plant B. will be planted C. planted D. are planting 10. This kind of machine ______ in many small factories now. A. uses B. used C. has using D. is used 11. Our English teacher asked us ______ the new words aloud. A. read B. reading C. reads D. to read 12. The children enjoy ______ stories about different jobs. A. reading B. read C. to reading D. reads 13. We went to the station early ______ the first bus. A. catching B. caught C. catches D. to catch 14. ______ the news, the students became excited. A. Hear B. Hearing C. Heard D. To hearing 15. The broken chair needs ______ at once. A. repair B. to repairing C. repairing D. repairs 16. You ______ wear a helmet when you ride an electric bike. A. may B. must C. can D. needn't 17. —Must I hand in the form today? —No, you ______. A. needn't B. mustn't C. can't D. shouldn't 18. The woman at the gate ______ be Ms. Wang. She has gone to Dalian. A. must B. can't C. may D. should 19. You ______ ask the teacher for help if you don't understand the question. A. can B. mustn't C. needn't D. couldn't 20. It is late. We ______ leave for the railway station now. A. may not B. needn't C. should D. can't 21. Please ______ your coat. It is cold outside. A. put on B. put off C. put up D. put away 22. The plane will ______ at 9:30 if the weather is fine. A. take off B. take up C. take after D. take down 23. Could you ______ my little sister while I buy the tickets? A. look up B. look for C. look after D. look through 24. The meeting will ______ at five o'clock in the afternoon. A. give up B. end up C. wake up D. grow up 25. The doctor told him to ______ smoking for his health. A. turn up B. pick up C. set up D. give up 26. The students ______ the classroom before the parents arrived. A. clean B. had cleaned C. are cleaning D. will clean 27. By this time tomorrow, we ______ the first part of the project. A. finished B. finish C. were finishing D. will finish 28. The young man decided ______ a small online shop after graduation. A. to open B. open C. opening D. opened 29. My father is busy ______ the broken bike in the yard. A. repair B. repairing C. to repair D. repairs 30. The old bridge ______ many years ago. A. builds B. was built C. is building D. built 31. If it rains tomorrow, the sports meeting ______ put off. A. is B. was C. will be D. has 32. The little boy kept ______ questions during the science class. A. asking B. ask C. to ask D. asked 33. We expect ______ more practical skills at vocational school. A. learn B. learning C. learned D. to learn 34. The guide stopped ______ the map and then led us to the hall. A. checking B. checked C. checks D. to check 35. The workers practiced ______ the new machine before using it alone. A. operate B. to operating C. operating D. operated 36. A new road ______ between the village and the town last year. A. was built B. builds C. is built D. will build 37. The workers are made ______ safety rules before starting work. A. to read B. read C. reading D. reads 38. He used to ______ to school by bus, but now he rides a bike. A. going B. went C. go D. goes 39. The girls were seen ______ flowers near the classroom after lunch. A. watering B. water C. to water D. watered 40. Don't forget ______ the door when you leave the office. A. locking B. to lock C. locked D. locks 41. The bus driver asked the passengers ______ their seat belts. A. fasten B. to fasten C. fastening D. fastened 42. The shop assistant helped the old woman ______ the heavy bag. A. carried B. carrying C. carry D. carries 43. The students have to ______ the classroom rules. A. follow B. following C. followed D. follows 44. The fire alarm suddenly ______ when we were having a training lesson. A. went on B. went over C. went off D. went through 45. Please ______ the form carefully before you sign your name. A. look after B. fill in C. take off D. give away 46. The team will ______ a plan for the school art festival. A. come up with B. get along with C. look forward to D. run out of 47. Before using the computer, you should ______ your account. A. turn down B. put off C. log in D. give back 48. The students ______ the old books and sent them to the reading room. A. sorted out B. broke down C. took away D. looked up 49. The machine didn't work, so the worker ______ the power first. A. check B. checks C. checking D. checked 50. A friendly smile can ______ a good relationship with customers. A. building B. build C. built D. builds 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $ 编写说明：本卷依据最新版《中等职业学校英语课程标准》和历年真题编写。本系列定位为45分钟训练卷，用于课堂限时训练、周测检测和阶段复习。本卷为词汇语法单选（动词与短语）专项，语境覆盖校园生活、家庭生活、日常服务和简单职场场景，训练学生在短句中准确辨析语言形式和交际功能。 【2027版】辽宁省高职院校单招考试（中职生）《英语45分钟训练卷》 第2卷 词汇语法单选（动词与短语） 考试时间：45分钟 满分：100分 班级______姓名______学号______成绩______ 词汇语法单选（共50小题；每小题2分，满分100分） 根据句意及语法要求，从每题A、B、C、D四个选项中，选出一个最适合的答案。 1. Every morning, the monitor ______ the windows before class begins. A. open B. opened C. opening D. opens 【答案】D 【详解】考查一般现在时和主谓一致。句意：每天早晨，班长在上课前打开窗户。A项为动词原形，不能直接作第三人称单数谓语，不合要求；B项为过去式，与Every morning不符，不合要求；C项为现在分词，不能单独作谓语，不合要求；D项为第三人称单数形式opens，主语the monitor为单数，符合一般现在时，正确。故选D。 2. The students ______ a safety video in the workshop yesterday. A. watch B. are watching C. watched D. will watch 【答案】C 【详解】考查一般过去时。句意：昨天学生们在车间观看了安全视频。A项为动词原形，时态不符，不合要求；B项为现在进行时，时态不符，不合要求；C项为过去式watched，符合yesterday提示，正确；D项为一般将来时，时态不符，不合要求。故选C。 3. Listen! Someone ______ an English song in the next room. A. sings B. sang C. will sing D. is singing 【答案】D 【详解】考查现在进行时。句意：听！有人正在隔壁房间唱英文歌。A项为一般现在时，不能表达正在进行，不合要求；B项为一般过去时，时态不符，不合要求；C项为一般将来时，时态不符，不合要求；D项为现在进行时，符合Listen所提示的正在发生的动作，正确。故选D。 4. When I got to the bus stop, many workers ______ for the bus. A. wait B. are waiting C. were waiting D. will wait 【答案】C 【详解】考查过去进行时。句意：当我到达公交站时，许多工人正在等车。A项为动词原形，不能作谓语，不合要求；B项为现在进行时，时间不符，不合要求；C项为过去进行时，表示过去某时正在发生，正确；D项为将来时，时间不符，不合要求。故选C。 5. Next Friday, our class ______ a visit to the city library. A. has B. will have C. had D. having 【答案】B 【详解】考查一般将来时。句意：下周五，我们班将参观市图书馆。A项为一般现在时，时间不符，不合要求；B项为一般将来时，符合Next Friday，正确；C项为过去式，时间不符，不合要求；D项为现在分词，不能单独作谓语，不合要求。故选B。 6. I ______ this dictionary for three years. A. use B. used C. am using D. have used 【答案】D 【详解】考查现在完成时。句意：这本词典我已经用了三年。A项为一般现在时，不能体现持续时间，不合要求；B项为一般过去时，不能与for three years表达延续到现在，不合要求；C项为现在进行时，语义不合，不合要求；D项为现在完成时，符合for three years表示持续到现在，正确。故选D。 7. The classroom ______ after school every day. A. cleans B. cleaned C. is cleaning D. is cleaned 【答案】D 【详解】考查一般现在时的被动语态。句意：教室每天放学后被打扫。A项为主动语态，主语不能发出clean动作，不合要求；B项为过去式主动或过去分词，结构不完整，不合要求；C项为现在进行时主动，语态不符，不合要求；D项为一般现在时被动语态，主语classroom是动作承受者，正确。故选D。 8. The notice ______ on the board just now. A. puts B. is putting C. was put D. putting 【答案】C 【详解】考查一般过去时的被动语态。句意：刚才通知被贴在公告栏上。A项为主动语态第三人称单数，语态不符，不合要求；B项为现在进行时主动，时态和语态不符，不合要求；C项为一般过去时被动语态，符合just now和主语notice，正确；D项为现在分词，不能单独作谓语，不合要求。故选C。 9. More trees ______ around the school next spring. A. plant B. will be planted C. planted D. are planting 【答案】B 【详解】考查一般将来时的被动语态。句意：明年春天学校周围将种更多树。A项为动词原形，结构不完整，不合要求；B项为一般将来时被动语态，主语trees是被种植，正确；C项为过去式或过去分词，缺少助动词，不合要求；D项为现在进行时主动，语态不符，不合要求。故选B。 10. This kind of machine ______ in many small factories now. A. uses B. used C. has using D. is used 【答案】D 【详解】考查被动语态。句意：现在这种机器在许多小工厂被使用。A项为主动语态，主语不能发出use动作，不合要求；B项为过去式或过去分词，缺少be动词，不合要求；C项为错误结构，不合要求；D项为被动语态is used，主语machine是动作承受者，正确。故选D。 11. Our English teacher asked us ______ the new words aloud. A. read B. reading C. reads D. to read 【答案】D 【详解】考查动词不定式作宾语补足语。句意：英语老师要求我们大声朗读新单词。A项缺少to，不符合ask sb. to do结构，不合要求；B项为动名词，不作ask后的宾补形式，不合要求；C项为第三人称单数形式，不合结构，不合要求；D项构成ask sb. to do sth.，正确，正确。故选D。 12. The children enjoy ______ stories about different jobs. A. reading B. read C. to reading D. reads 【答案】A 【详解】考查动名词作宾语。句意：孩子们喜欢阅读关于不同职业的故事。A项enjoy后接动名词reading，正确，正确；B项为动词原形，不能作enjoy宾语，不合要求；C项to reading结构错误，不合要求；D项为第三人称单数形式，不合结构，不合要求。故选A。 13. We went to the station early ______ the first bus. A. catching B. caught C. catches D. to catch 【答案】D 【详解】考查动词不定式表目的。句意：我们早早去车站是为了赶上第一班车。A项为现在分词，目的意义不明确，不合要求；B项为过去式，不能表目的，不合要求；C项为第三人称单数，不能表目的，不合要求；D项不定式to catch表示目的，正确，正确。故选D。 14. ______ the news, the students became excited. A. Hear B. Hearing C. Heard D. To hearing 【答案】B 【详解】考查现在分词作状语。句意：听到这个消息，学生们兴奋起来。A项动词原形不能直接作状语，不合要求；B项Hearing表示主动伴随或时间关系，正确，正确；C项过去分词表示被动，不合句意，不合要求；D项To hearing结构错误，不合要求。故选B。 15. The broken chair needs ______ at once. A. repair B. to repairing C. repairing D. repairs 【答案】C 【详解】考查need doing表被动含义。句意：这把坏椅子需要马上修理。A项动词原形不能作need宾语，不合要求；B项to repairing结构错误，不合要求；C项need repairing表示“需要被修理”，正确，正确；D项第三人称单数形式不能作宾语，不合要求。故选C。 16. You ______ wear a helmet when you ride an electric bike. A. may B. must C. can D. needn't 【答案】B 【详解】考查情态动词must。句意：骑电动车时你必须戴头盔。A项may表示可能或可以，语气不足，不合要求；B项must表示必须，符合安全规则，正确；C项can表示能力或许可，不能表达强制要求，不合要求；D项needn't表示不必，与句意相反，不合要求。故选B。 17. —Must I hand in the form today? —No, you ______. A. needn't B. mustn't C. can't D. shouldn't 【答案】A 【详解】考查must疑问句的否定回答。句意：——我必须今天交表吗？——不，不必。A项needn't表示不必，是Must I...?的否定回答，正确；B项mustn't表示禁止，不符合问答，不合要求；C项can't表示不能，语义不准确，不合要求；D项shouldn't表示不应该，语气不合，不合要求。故选A。 18. The woman at the gate ______ be Ms. Wang. She has gone to Dalian. A. must B. can't C. may D. should 【答案】B 【详解】考查情态动词表否定推测。句意：门口那位女士不可能是王老师。她去大连了。A项must表示一定，与事实矛盾，不合要求；B项can't表示“不可能”，符合后句依据，正确；C项may表示可能，语气不符，不合要求；D项should表示应该，不能表否定推测，不合要求。故选B。 19. You ______ ask the teacher for help if you don't understand the question. A. can B. mustn't C. needn't D. couldn't 【答案】A 【详解】考查情态动词can表许可或建议。句意：如果你不理解题目，可以向老师求助。A项can表示可以，符合建议语境，正确；B项mustn't表示禁止，与句意相反，不合要求；C项needn't表示不必，语义不合，不合要求；D项couldn't表示不能，语义不合，不合要求。故选A。 20. It is late. We ______ leave for the railway station now. A. may not B. needn't C. should D. can't 【答案】C 【详解】考查情态动词should表建议。句意：时间晚了。我们现在应该动身去火车站。A项may not表示可能不，语义不合，不合要求；B项needn't表示不必，与句意相反，不合要求；C项should表示应该，符合建议语境，正确；D项can't表示不能，语义不合，不合要求。故选C。 21. Please ______ your coat. It is cold outside. A. put on B. put off C. put up D. put away 【答案】A 【详解】考查动词短语辨析。句意：请穿上外套。外面很冷。A项put on表示穿上，正确，正确；B项put off表示推迟，不合要求；C项put up表示张贴或搭建，不合要求；D项put away表示收好，不合要求。故选A。 22. The plane will ______ at 9:30 if the weather is fine. A. take off B. take up C. take after D. take down 【答案】A 【详解】考查动词短语辨析。句意：如果天气好，飞机将在九点半起飞。A项take off表示起飞，正确，正确；B项take up表示占据或开始从事，不合要求；C项take after表示像，不合要求；D项take down表示记下或拆下，不合要求。故选A。 23. Could you ______ my little sister while I buy the tickets? A. look up B. look for C. look after D. look through 【答案】C 【详解】考查动词短语辨析。句意：我买票时你能照看一下我妹妹吗？A项look up表示查阅，不合要求；B项look for表示寻找，不合要求；C项look after表示照顾，正确，正确；D项look through表示浏览，不合要求。故选C。 24. The meeting will ______ at five o'clock in the afternoon. A. give up B. end up C. wake up D. grow up 【答案】B 【详解】考查动词短语辨析。句意：会议将在下午五点结束。A项give up表示放弃，不合要求；B项end up表示结束或最终处于，符合句意，正确；C项wake up表示醒来，不合要求；D项grow up表示长大，不合要求。故选B。 25. The doctor told him to ______ smoking for his health. A. turn up B. pick up C. set up D. give up 【答案】D 【详解】考查动词短语辨析。句意：医生告诉他为了健康戒烟。A项turn up表示出现或调大音量，不合要求；B项pick up表示捡起或接人，不合要求；C项set up表示建立，不合要求；D项give up表示放弃，符合戒烟语境，正确。故选D。 26. The students ______ the classroom before the parents arrived. A. clean B. had cleaned C. are cleaning D. will clean 【答案】B 【详解】考查过去完成时。句意：家长到达前，学生们已经打扫了教室。A项clean为动词原形，时态不符，不合要求；B项had cleaned表示过去某时之前已经完成，正确；C项are cleaning为现在进行时，时态不符，不合要求；D项will clean为将来时，时态不符，不合要求。故选B。 27. By this time tomorrow, we ______ the first part of the project. A. finished B. finish C. were finishing D. will finish 【答案】D 【详解】考查一般将来时。句意：到明天这个时候，我们将完成项目第一部分。A项finished为过去式，时态不符，不合要求；B项finish为一般现在时，时态不符，不合要求；C项were finishing为过去进行时，时态不符，不合要求；D项will finish表示将来动作，符合tomorrow，正确。故选D。 28. The young man decided ______ a small online shop after graduation. A. to open B. open C. opening D. opened 【答案】A 【详解】考查动词不定式作宾语。句意：这位年轻人决定毕业后开一家小网店。A项decide后接to do，正确，正确；B项动词原形不能直接作decide宾语，不合要求；C项opening为动名词，不用于decide后，不合要求；D项opened为过去式或过去分词，不合结构，不合要求。故选A。 29. My father is busy ______ the broken bike in the yard. A. repair B. repairing C. to repair D. repairs 【答案】B 【详解】考查固定搭配be busy doing。句意：我父亲正忙着在院子里修坏自行车。A项动词原形不合结构，不合要求；B项be busy doing sth.表示忙于做某事，正确，正确；C项不定式不用于该固定搭配，不合要求；D项第三人称单数形式不合结构，不合要求。故选B。 30. The old bridge ______ many years ago. A. builds B. was built C. is building D. built 【答案】B 【详解】考查一般过去时的被动语态。句意：这座老桥是许多年前建造的。A项builds为主动语态，语态不符，不合要求；B项was built为过去时被动语态，正确，正确；C项is building为现在进行时主动，时态和语态不符，不合要求；D项built缺少be动词，结构不完整，不合要求。故选B。 31. If it rains tomorrow, the sports meeting ______ put off. A. is B. was C. will be D. has 【答案】C 【详解】考查一般将来时被动结构。句意：如果明天下雨，运动会将被推迟。A项is表示一般现在，不能表达将来结果，不合要求；B项was为过去式，时态不符，不合要求；C项will be与put off构成将来被动，正确，正确；D项has不能与put off构成被动，不合要求。故选C。 32. The little boy kept ______ questions during the science class. A. asking B. ask C. to ask D. asked 【答案】A 【详解】考查keep doing结构。句意：科学课上这个小男孩一直问问题。A项keep doing表示持续做某事，正确，正确；B项动词原形不合结构，不合要求；C项不定式不用于keep doing结构，不合要求；D项过去式不合结构，不合要求。故选A。 33. We expect ______ more practical skills at vocational school. A. learn B. learning C. learned D. to learn 【答案】D 【详解】考查动词不定式作宾语。句意：我们期待在职业学校学习更多实用技能。A项动词原形不能直接作expect宾语，不合要求；B项learning为动名词，不合expect结构，不合要求；C项learned为过去式或过去分词，不合结构，不合要求；D项expect后接to do，正确，正确。故选D。 34. The guide stopped ______ the map and then led us to the hall. A. checking B. checked C. checks D. to check 【答案】D 【详解】考查stop to do与stop doing辨析。句意：导游停下来查看地图，然后带我们去大厅。A项checking表示停止查看，与后文不符，不合要求；B项checked为过去式，不能作目的，不合要求；C项checks为第三人称单数，不合结构，不合要求；D项stop to check表示停下来去查看，符合句意，正确。故选D。 35. The workers practiced ______ the new machine before using it alone. A. operate B. to operating C. operating D. operated 【答案】C 【详解】考查动名词作宾语。句意：工人们在独立使用前练习操作新机器。A项动词原形不能作practice宾语，不合要求；B项to operating结构错误，不合要求；C项practice后接动名词operating，正确，正确；D项operated为过去式或过去分词，不合结构，不合要求。故选C。 36. A new road ______ between the village and the town last year. A. was built B. builds C. is built D. will build 【答案】A 【详解】考查一般过去时的被动语态。句意：去年村庄和城镇之间修了一条新路。A项was built表示过去被修建，正确，正确；B项builds为主动语态且时态不符，不合要求；C项is built为一般现在被动，时间不符，不合要求；D项will build为将来主动，时态和语态不符，不合要求。故选A。 37. The workers are made ______ safety rules before starting work. A. to read B. read C. reading D. reads 【答案】A 【详解】考查make被动结构。句意：工人们被要求在开工前阅读安全规则。A项be made to do为被动结构，正确，正确；B项主动结构make sb. do中可省to，但被动需还原to，不合要求；C项reading不合be made to do结构，不合要求；D项reads不合结构，不合要求。故选A。 38. He used to ______ to school by bus, but now he rides a bike. A. going B. went C. go D. goes 【答案】C 【详解】考查used to do结构。句意：他过去常乘公交上学，但现在骑自行车。A项going为动名词，不合结构，不合要求；B项went为过去式，不合结构，不合要求；C项used to后接动词原形go，正确，正确；D项goes为第三人称单数，不合结构，不合要求。故选C。 39. The girls were seen ______ flowers near the classroom after lunch. A. watering B. water C. to water D. watered 【答案】A 【详解】考查see sb. doing的被动延续用法。句意：午饭后有人看见女孩们正在教室附近浇花。A项watering表示正在进行的动作，符合语境，正确；B项water表示动作全过程但此处不突出进行，不合要求；C项to water常用于see sb. do被动还原，不合正在进行语境，不合要求；D项watered为过去式或过去分词，不合结构，不合要求。故选A。 40. Don't forget ______ the door when you leave the office. A. locking B. to lock C. locked D. locks 【答案】B 【详解】考查forget to do与forget doing辨析。句意：离开办公室时不要忘记锁门。A项locking表示忘记做过某事，语义不合，不合要求；B项forget to lock表示忘记要去锁门，正确，正确；C项locked为过去式或过去分词，不合结构，不合要求；D项locks为第三人称单数，不合结构，不合要求。故选B。 41. The bus driver asked the passengers ______ their seat belts. A. fasten B. to fasten C. fastening D. fastened 【答案】B 【详解】考查ask sb. to do结构。句意：公交司机要求乘客系好安全带。A项动词原形不合结构，不合要求；B项ask sb. to do sth.结构正确，正确；C项动名词不作ask后的宾补，不合要求；D项过去式或过去分词不合结构，不合要求。故选B。 42. The shop assistant helped the old woman ______ the heavy bag. A. carried B. carrying C. carry D. carries 【答案】C 【详解】考查help sb. do结构。句意：店员帮助那位老妇人提重包。A项carried为过去式，结构不合，不合要求；B项carrying为现在分词，不合常规结构，不合要求；C项help sb. do sth.中可用动词原形，正确，正确；D项carries为第三人称单数，不合结构，不合要求。故选C。 43. The students have to ______ the classroom rules. A. follow B. following C. followed D. follows 【答案】A 【详解】考查have to do结构。句意：学生们必须遵守课堂规则。A项have to后接动词原形follow，正确，正确；B项following为动名词，不合结构，不合要求；C项followed为过去式，不合结构，不合要求；D项follows为第三人称单数，不合结构，不合要求。故选A。 44. The fire alarm suddenly ______ when we were having a training lesson. A. went on B. went over C. went off D. went through 【答案】C 【详解】考查动词短语辨析。句意：我们正在上实训课时，火警突然响了。A项go on表示继续，不合要求；B项go over表示复习或检查，不合要求；C项go off可表示警报响起，正确，正确；D项go through表示经历或穿过，不合要求。故选C。 45. Please ______ the form carefully before you sign your name. A. look after B. fill in C. take off D. give away 【答案】B 【详解】考查动词短语辨析。句意：签名前请认真填写表格。A项look after表示照顾，不合要求；B项fill in表示填写，正确，正确；C项take off表示脱下或起飞，不合要求；D项give away表示赠送，不合要求。故选B。 46. The team will ______ a plan for the school art festival. A. come up with B. get along with C. look forward to D. run out of 【答案】A 【详解】考查动词短语辨析。句意：这个团队将想出校园艺术节方案。A项come up with表示想出，正确，正确；B项get along with表示相处，不合要求；C项look forward to表示期待，不合要求；D项run out of表示用完，不合要求。故选A。 47. Before using the computer, you should ______ your account. A. turn down B. put off C. log in D. give back 【答案】C 【详解】考查动词短语辨析。句意：使用电脑前，你应该登录账户。A项turn down表示调低或拒绝，不合要求；B项put off表示推迟，不合要求；C项log in表示登录，正确，正确；D项give back表示归还，不合要求。故选C。 48. The students ______ the old books and sent them to the reading room. A. sorted out B. broke down C. took away D. looked up 【答案】A 【详解】考查动词短语辨析。句意：学生们整理旧书并把它们送到阅览室。A项sort out表示整理，正确，正确；B项break down表示出故障或分解，不合要求；C项take away表示拿走，不合要求；D项look up表示查阅，不合要求。故选A。 49. The machine didn't work, so the worker ______ the power first. A. check B. checks C. checking D. checked 【答案】D 【详解】考查一般过去时。句意：机器不工作，所以工人先检查了电源。A项check为动词原形，时态不符，不合要求；B项checks为第三人称单数，时态不符，不合要求；C项checking为现在分词，不能单独作谓语，不合要求；D项checked为过去式，符合didn't work的过去语境，正确。故选D。 50. A friendly smile can ______ a good relationship with customers. A. building B. build C. built D. builds 【答案】B 【详解】考查情态动词后接动词原形。句意：友好的微笑能与顾客建立良好关系。A项building为动名词或现在分词，不合结构，不合要求；B项can后接动词原形build，正确，正确；C项built为过去式或过去分词，不合结构，不合要求；D项builds为第三人称单数，不合结构，不合要求。故选B。 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $