考前押题01 教材语法单句填空100题（期中复习专项训练）高一英语下学期沪教版

考前押题01 教材语法单句填空100题 Unit 1 动词-ing和动词-ed形式作宾语补足语（50题） 1. When I passed by the classroom, I saw a student ____________ (read) English aloud attentively. 2. The speaker raised his voice but still couldn’t make himself____________ (hear) clearly by the audience at the back. 3. We found the old man____________ (sit) quietly on the bench, lost in thought. 4. She had her computer____________ (repair) at the service center last weekend. 5. The boss kept the workers____________ (work) overtime for the whole week to finish the project. 6. I noticed a little boy ____________(cry) at the corner of the street when I went shopping yesterday. 7. They found the story____________ (tell) by the famous writer very moving. 8. The teacher left the students____________ (discuss) the problem in groups after class. 9. With so many people____________ (stare) at her, she felt a little nervous. 10. He felt his heart____________ (beat) fast when he stepped onto the stage. 11. The mother didn’t leave her son until she saw him____________ (cross) the street safely. 12. We can hear the windows ____________(beat) by the heavy rain outside. 13. The manager had his secretary ____________(arrange) a meeting for the next morning. 14. I found my wallet ____________(steal) on the crowded bus this morning. 15. She watched the kids____________ (play) happily in the garden with a smile. 16. The bad weather made the trip____________ (tire) for all the tourists. 17. He got his homework____________ (finish) before his parents came back home. 18. I could feel the wind____________ (blow) gently through my hair. 19. The police observed the man____________ (enter) the bank and followed him in. 20. We consider the story____________ (inspire) and worth spreading widely. 21. She found herself____________ (surround) by a group of curious children. 22. The boy kept his eyes____________ (fix) on the screen while playing games. 23. I heard someone ____________(call) my name when I was walking in the park. 24. The teacher encouraged us____________ (speak) English more bravely in class. 25. They left the machine ____________(run) all night without stopping it. 26. We saw the tower ____________(damage) seriously in the big storm last month. 27. He felt a stone ____________(hit) him on the head suddenly. 28. The director had the actors____________ (rehearse) the play again and again. 29. With his homework____________ (do), he went out to play basketball with his friends. 30. I found the problem ____________(solve) easily with the teacher’s help. 31. She noticed the thief ____________(steal) a wallet from a passenger and shouted loudly. 32. The cold weather made the water____________ (freeze) quickly on the road. 33. We watched the sun____________ (rise) slowly from behind the mountain. 34. He had his photo ____________(take) at the foot of the famous statue. 35. The news made everyone____________ (feel) worried about the missing climbers. 36. I saw a light____________ (burn) in the window of the old house at midnight. 37. She found the room____________ (clean) thoroughly by her daughter. 38. The coach kept the players____________ (train) hard every day for the match. 39. With a lot of work____________ (do), he couldn’t go on vacation with his family. 40. We heard the song____________ (sing) in many different languages around the world. 41. He felt his pocket ____________(pick) on the busy subway this morning. 42. The mother saw her baby ____________(reach) out for the toy on the table. 43. They made their views____________ (know) to everyone at the meeting. 44. I found the book ____________(lie) on the ground when I came back. 45. She got her bike ____________(fix) up by her brother yesterday. 46. The teacher found the boy ____________(cheat) in the exam and punished him. 47. We could feel the house ____________(shake) during the small earthquake. 48. He left the door ____________(open) when he went out just now. 49. The director watched the scene ____________(film) carefully by the team. 50. I noticed the girl ____________(cry) silently because she failed the exam. Unit 2 不同形式的被动语态（50题） 1. The new film ______________ (show) in many cinemas all over the country now. 2. These ancient buildings______________ (protect) well by the government since 1990. 3. A new sports center______________ (build) in our city next year. 4. The letter______________ (send) to my parents last week, but they haven’t received it yet. 5. The problem______________ (discuss) at the meeting at this time yesterday. 6. All the tickets______________ (sell) out when we got to the cinema. 7. More trees and flowers______________ (plant) in our school every spring. 8. The book ______________(finish) writing by the end of last month. 9. The plan for the trip ______________(make) carefully by our teacher now. 10. These toys ______________(make) for the children in poor areas last month. 11. The meeting______________ (put) off if it rains tomorrow. 12. Much attention______________ (pay) to the environmental protection in recent years. 13. The bridge______________ (damage) in the heavy rainstorm last night. 14. A lot of useful advice ______________(give) to us by our teacher in class. 15. The work______________ (finish) on time so far. 16. These old houses ______________(pull) down in two months. 17. The computer______________ (use) for three years before it was broken. 18. The problem ______________(solve) already, so we don’t need to worry about it. 19. A speech ______________(give) in the school hall next Monday afternoon. 20. The little boy______________ (take) good care of by his grandparents while his parents were away. 21. Many foreign films ______________(show) on TV since last year. 22. The road______________ (widen) now to solve the traffic problem. 23. All the exercises______________ (do) by the students before the teacher came. 24. The sports meeting______________ (hold) next Saturday if the weather is fine. 25. This kind of cloth______________ (wash) easily. 26. The lost child______________ (find) in the park this morning. 27. The project______________ (complete) by the end of next month. 28. The room______________ (clean) every day by my little sister. 29. The letter______________ (write) in English when I received it. 30. More measures______________ (take) to reduce pollution in the future. 31. The story______________ (tell) many times since it happened. 32. The machine ______________(check) right now, so you can’t use it. 33. All the food ______________(eat) up before we arrived at the party. 34. A new library ______________(build) in our school now. 35. The plan ______________(carry) out successfully last month. 36. The problem ______________(talk) about at the meeting tomorrow. 37. The house ______________(decorate) for a week before the festival. 38. These magazines ______________(can/take) out of the reading room. 39. The song______________ (sing) by many people since it came out. 40. The meeting______________ (hold) when we got to the hall. 41. A lot of trees______________ (cut) down every year, which is bad for the environment. 42. The work______________ (must/finish) before 5 o’clock this afternoon. 43. The novel______________ (translate) into three languages so far. 44. The sports meeting______________ (put) off because of the bad weather yesterday. 45. The new law ______________(make) to protect the rights of workers next year. 46. The door ______________(lock) when I left home this morning. 47. Much homework ______________(assign) to us by our teachers every day. 48. The old man ______________(send) to hospital quickly when he fell ill. 49. The experiment ______________(do) in the lab at this time tomorrow. 50. All the mistakes______________ (correct) by the teacher before class. 学科网（北京）股份有限公司 $考前押题01 教材语法单句填空100题 1 / 1 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 Unit 1 动词-ing和动词-ed形式作宾语补足语（50题） 1. When I passed by the classroom, I saw a student ____________ (read) English aloud attentively. 2. The speaker raised his voice but still couldn’t make himself____________ (hear) clearly by the audience at the back. 3. We found the old man____________ (sit) quietly on the bench, lost in thought. 4. She had her computer____________ (repair) at the service center last weekend. 5. The boss kept the workers____________ (work) overtime for the whole week to finish the project. 6. I noticed a little boy ____________(cry) at the corner of the street when I went shopping yesterday. 7. They found the story____________ (tell) by the famous writer very moving. 8. The teacher left the students____________ (discuss) the problem in groups after class. 9. With so many people____________ (stare) at her, she felt a little nervous. 10. He felt his heart____________ (beat) fast when he stepped onto the stage. 11. The mother didn’t leave her son until she saw him____________ (cross) the street safely. 12. We can hear the windows ____________(beat) by the heavy rain outside. 13. The manager had his secretary ____________(arrange) a meeting for the next morning. 14. I found my wallet ____________(steal) on the crowded bus this morning. 15. She watched the kids____________ (play) happily in the garden with a smile. 16. The bad weather made the trip____________ (tire) for all the tourists. 17. He got his homework____________ (finish) before his parents came back home. 18. I could feel the wind____________ (blow) gently through my hair. 19. The police observed the man____________ (enter) the bank and followed him in. 20. We consider the story____________ (inspire) and worth spreading widely. 21. She found herself____________ (surround) by a group of curious children. 22. The boy kept his eyes____________ (fix) on the screen while playing games. 23. I heard someone ____________(call) my name when I was walking in the park. 24. The teacher encouraged us____________ (speak) English more bravely in class. 25. They left the machine ____________(run) all night without stopping it. 26. We saw the tower ____________(damage) seriously in the big storm last month. 27. He felt a stone ____________(hit) him on the head suddenly. 28. The director had the actors____________ (rehearse) the play again and again. 29. With his homework____________ (do), he went out to play basketball with his friends. 30. I found the problem ____________(solve) easily with the teacher’s help. 31. She noticed the thief ____________(steal) a wallet from a passenger and shouted loudly. 32. The cold weather made the water____________ (freeze) quickly on the road. 33. We watched the sun____________ (rise) slowly from behind the mountain. 34. He had his photo ____________(take) at the foot of the famous statue. 35. The news made everyone____________ (feel) worried about the missing climbers. 36. I saw a light____________ (burn) in the window of the old house at midnight. 37. She found the room____________ (clean) thoroughly by her daughter. 38. The coach kept the players____________ (train) hard every day for the match. 39. With a lot of work____________ (do), he couldn’t go on vacation with his family. 40. We heard the song____________ (sing) in many different languages around the world. 41. He felt his pocket ____________(pick) on the busy subway this morning. 42. The mother saw her baby ____________(reach) out for the toy on the table. 43. They made their views____________ (know) to everyone at the meeting. 44. I found the book ____________(lie) on the ground when I came back. 45. She got her bike ____________(fix) up by her brother yesterday. 46. The teacher found the boy ____________(cheat) in the exam and punished him. 47. We could feel the house ____________(shake) during the small earthquake. 48. He left the door ____________(open) when he went out just now. 49. The director watched the scene ____________(film) carefully by the team. 50. I noticed the girl ____________(cry) silently because she failed the exam. 答案： 1. 答案：reading 解析：see sb. doing sth. 表示“看到某人正在做某事”，强调动作正在进行，路过教室时看到学生正在大声读英语，故填reading。 2. 答案：heard 解析：make oneself done 是固定用法，oneself与过去分词是被动关系，表示“使自己被……”，此处指让自己被听众听到，故填heard。 3. 答案：sitting 解析：find sb. doing sth. 表示“发现某人正在做某事”，强调老人正坐在长椅上陷入沉思的状态，故填sitting。 4. 答案：repaired 解析：have sth. done 表示“让某事被做”，computer与repair是被动关系，指让维修中心修电脑，故填repaired。 5. 答案：working 解析：keep sb. doing sth. 表示“让某人一直做某事”，强调工人持续加班的状态，故填working。 6. 答案：crying 解析：notice sb. doing sth. 表示“注意到某人正在做某事”，昨天购物时看到小男孩正在哭，故填crying。 7. 答案：told 解析：story与tell是被动关系，表示“被作家讲述的故事”，用过去分词作宾补，故填told。 8. 答案：discussing 解析：leave sb. doing sth. 表示“让某人一直做某事”，老师让学生课后一直分组讨论问题，故填discussing。 9. 答案：staring 解析：with + 宾语 + 现在分词，宾语people与stare是主动关系，表示“很多人盯着她”，故填staring。 10. 答案：beating 解析：feel sth. doing sth. 表示“感觉到某物正在做某事”，上台时感觉心脏正快速跳动，故填beating。 11. 答案：cross 解析：see sb. do sth. 表示“看到某人做某事的全过程”，看到儿子安全过马路的整个过程，故填cross。 12. 答案：beaten 解析：windows与beat是被动关系，hear sth. done 表示“听到某物被……”，指窗户被大雨拍打，故填beaten。 13. 答案：arrange 解析：have sb. do sth. 表示“让某人做某事”，老板让秘书安排会议，故填arrange。 14. 答案：stolen 解析：wallet与steal是被动关系，find sth. done 表示“发现某物被……”，钱包在拥挤公交上被偷，故填stolen。 15. 答案：playing 解析：watch sb. doing sth. 表示“看到某人正在做某事”，看着孩子们正在花园里开心玩耍，故填playing。 16. 答案：tiring 解析：make sth. + 形容词，修饰事物trip用-ing形容词，tiring表示“令人疲惫的”，故填tiring。 17. 答案：finished 解析：get sth. done 表示“让某事被完成”，homework与finish是被动关系，故填finished。 18. 答案：blowing 解析：feel sth. doing sth. 表示“感觉到某物正在做某事”，感觉风正轻轻吹过头发，故填blowing。 19. 答案：enter 解析：observe sb. do sth. 表示“观察到某人做某事的全过程”，看到男子进入银行并跟进，故填enter。 20. 答案：inspiring 解析：修饰事物story用-ing形容词，inspiring表示“令人鼓舞的”，故填inspiring。 21. 答案：surrounded 解析：herself与surround是被动关系，find oneself done 表示“发现自己被……”，被一群好奇孩子围住，故填surrounded。 22. 答案：fixed 解析：fix one’s eyes on 是固定搭配，eyes与fix是被动关系，故填fixed。 23. 答案：calling 解析：hear sb. doing sth. 表示“听到某人正在做某事”，听到有人正在喊自己的名字，故填calling。 24. 答案：to speak 解析：encourage sb. to do sth. 是固定搭配，意为“鼓励某人做某事”，故填to speak。 25. 答案：running 解析：leave sth. doing sth. 表示“让某物一直处于某种状态”，让机器整夜运转，故填running。 26. 答案：damaged 解析：tower与damage是被动关系，see sth. done 表示“看到某物被……”，塔在暴风雨中被严重损毁，故填damaged。 27. 答案：hit 解析：feel sth. do sth. 表示“感觉到某物做某事的全过程”，突然感觉到石头砸到头，故填hit。 28. 答案：rehearse 解析：have sb. do sth. 表示“让某人做某事”，导演让演员反复排练话剧，故填rehearse。 29. 答案：done 解析：with + 宾语 + 过去分词，homework与do是被动关系，表示作业被完成，故填done。 30. 答案：solved 解析：problem与solve是被动关系，find sth. done 表示“发现某物被……”，问题在老师帮助下被轻松解决，故填solved。 31. 答案：stealing 解析：notice sb. doing sth. 表示“注意到某人正在做某事”，看到小偷正在偷乘客钱包，故填stealing。 32. 答案：freeze 解析：make sth. do sth. 表示“让某物做某事”，寒冷天气让路面的水快速结冰，故填freeze。 33. 答案：rising 解析：watch sth. doing sth. 表示“看到某物正在做某事”，看着太阳正从山后缓缓升起，故填rising。 34. 答案：taken 解析：have sth. done 表示“让某事被做”，photo与take是被动关系，拍照片，故填taken。 35. 答案：feel 解析：make sb. do sth. 表示“让某人做某事”，消息让所有人都担心失踪的登山者，故填feel。 36. 答案：burning 解析：see sth. doing sth. 表示“看到某物正在做某事”，半夜看到老房子的窗户亮着灯，故填burning。 37. 答案：cleaned 解析：room与clean是被动关系，find sth. done 表示“发现某物被……”，房间被女儿彻底打扫，故填cleaned。 38. 答案：training 解析：keep sb. doing sth. 表示“让某人一直做某事”，教练让运动员每天刻苦训练，故填training。 39. 答案：to do 解析：with + 宾语 + 不定式，表示“有某事要做”，动作尚未发生，有很多工作要做，故填to do。 40. 答案：sung 解析：song与sing是被动关系，hear sth. done 表示“听到某物被……”，歌曲被用多种语言演唱，故填sung。 41. 答案：picked 解析：pick one’s pocket 表示“扒窃”，pocket与pick是被动关系，故填picked。 42. 答案：reaching 解析：see sb. doing sth. 表示“看到某人正在做某事”，看到宝宝正伸手去够桌上的玩具，故填reaching。 43. 答案：known 解析：make sth. done 表示“让某事被……”，让自己的观点在会议上被所有人知晓，故填known。 44. 答案：lying 解析：find sth. doing sth. 表示“发现某物正处于某种状态”，发现书正躺在地上，故填lying。 45. 答案：fixed 解析：get sth. done 表示“让某事被做”，bike与fix是被动关系，让哥哥修理自行车，故填fixed。 46. 答案：cheating 解析：find sb. doing sth. 表示“发现某人正在做某事”，老师发现男孩正在考试作弊，故填cheating。 47. 答案：shaking 解析：feel sth. doing sth. 表示“感觉到某物正在做某事”，小地震时感觉到房子在摇晃，故填shaking。 48. 答案：open 解析：leave sth. + 形容词，open此处为形容词，表示“开着的”，作宾补，故填open。 49. 答案：being filmed 解析：scene与film是被动关系，且表示动作正在进行，watch sth. being done 表示“看到某物正在被……”，故填being filmed。 50. 答案：crying 解析：notice sb. doing sth. 表示“注意到某人正在做某事”，看到女孩因为考试不及格默默哭泣，故填crying。 Unit 2 不同形式的被动语态（50题） 1. The new film ______________ (show) in many cinemas all over the country now. 2. These ancient buildings______________ (protect) well by the government since 1990. 3. A new sports center______________ (build) in our city next year. 4. The letter______________ (send) to my parents last week, but they haven’t received it yet. 5. The problem______________ (discuss) at the meeting at this time yesterday. 6. All the tickets______________ (sell) out when we got to the cinema. 7. More trees and flowers______________ (plant) in our school every spring. 8. The book ______________(finish) writing by the end of last month. 9. The plan for the trip ______________(make) carefully by our teacher now. 10. These toys ______________(make) for the children in poor areas last month. 11. The meeting______________ (put) off if it rains tomorrow. 12. Much attention______________ (pay) to the environmental protection in recent years. 13. The bridge______________ (damage) in the heavy rainstorm last night. 14. A lot of useful advice ______________(give) to us by our teacher in class. 15. The work______________ (finish) on time so far. 16. These old houses ______________(pull) down in two months. 17. The computer______________ (use) for three years before it was broken. 18. The problem ______________(solve) already, so we don’t need to worry about it. 19. A speech ______________(give) in the school hall next Monday afternoon. 20. The little boy______________ (take) good care of by his grandparents while his parents were away. 21. Many foreign films ______________(show) on TV since last year. 22. The road______________ (widen) now to solve the traffic problem. 23. All the exercises______________ (do) by the students before the teacher came. 24. The sports meeting______________ (hold) next Saturday if the weather is fine. 25. This kind of cloth______________ (wash) easily. 26. The lost child______________ (find) in the park this morning. 27. The project______________ (complete) by the end of next month. 28. The room______________ (clean) every day by my little sister. 29. The letter______________ (write) in English when I received it. 30. More measures______________ (take) to reduce pollution in the future. 31. The story______________ (tell) many times since it happened. 32. The machine ______________(check) right now, so you can’t use it. 33. All the food ______________(eat) up before we arrived at the party. 34. A new library ______________(build) in our school now. 35. The plan ______________(carry) out successfully last month. 36. The problem ______________(talk) about at the meeting tomorrow. 37. The house ______________(decorate) for a week before the festival. 38. These magazines ______________(can/take) out of the reading room. 39. The song______________ (sing) by many people since it came out. 40. The meeting______________ (hold) when we got to the hall. 41. A lot of trees______________ (cut) down every year, which is bad for the environment. 42. The work______________ (must/finish) before 5 o’clock this afternoon. 43. The novel______________ (translate) into three languages so far. 44. The sports meeting______________ (put) off because of the bad weather yesterday. 45. The new law ______________(make) to protect the rights of workers next year. 46. The door ______________(lock) when I left home this morning. 47. Much homework ______________(assign) to us by our teachers every day. 48. The old man ______________(send) to hospital quickly when he fell ill. 49. The experiment ______________(do) in the lab at this time tomorrow. 50. All the mistakes______________ (correct) by the teacher before class. 答案： 1. 答案：is being shown 解析：根据now可知用现在进行时的被动语态，film与show是被动关系，表示“新电影正在全国各大影院上映”，故填is being shown。 2. 答案：have been protected 解析：根据since 1990可知用现在完成时的被动语态，buildings与protect是被动关系，故填have been protected。 3. 答案：will be built 解析：根据next year可知用一般将来时的被动语态，center与build是被动关系，故填will be built。 4. 答案：was sent 解析：根据last week可知用一般过去时的被动语态，letter与send是被动关系，故填was sent。 5. 答案：was being discussed 解析：根据at this time yesterday可知用过去进行时的被动语态，problem与discuss是被动关系，故填was being discussed。 6. 答案：had been sold 解析：“票卖完”发生在“到达影院”之前，用过去完成时的被动语态，tickets与sell是被动关系，故填had been sold。 7. 答案：are planted 解析：根据every spring可知用一般现在时的被动语态，trees与plant是被动关系，故填are planted。 8. 答案：had been finished 解析：根据by the end of last month可知用过去完成时的被动语态，book与finish是被动关系，故填had been finished。 9. 答案：is being made 解析：根据now可知用现在进行时的被动语态，plan与make是被动关系，故填is being made。 10. 答案：were made 解析：根据last month可知用一般过去时的被动语态，toys与make是被动关系，故填were made。 11. 答案：will be put 解析：if引导条件状语从句，遵循“主将从现”，用一般将来时的被动语态，meeting与put off是被动关系，故填will be put。 12. 答案：has been paid 解析：根据in recent years可知用现在完成时的被动语态，attention与pay是被动关系，故填has been paid。 13. 答案：was damaged 解析：根据last night可知用一般过去时的被动语态，bridge与damage是被动关系，故填was damaged。 14. 答案：is given/was given 解析：advice与give是被动关系，可表示一般情况用一般现在时is given，也可表示过去用一般过去时was given，故填is given/was given。 15. 答案：has been finished 解析：根据so far可知用现在完成时的被动语态，work与finish是被动关系，故填has been finished。 16. 答案：will be pulled 解析：根据in two months可知用一般将来时的被动语态，houses与pull down是被动关系，故填will be pulled。 17. 答案：had been used 解析：“电脑被使用”发生在“坏掉”之前，用过去完成时的被动语态，computer与use是被动关系，故填had been used。 18. 答案：has been solved 解析：根据already可知用现在完成时的被动语态，problem与solve是被动关系，故填has been solved。 19. 答案：will be given 解析：根据next Monday afternoon可知用一般将来时的被动语态，speech与give是被动关系，故填will be given。 20. 答案：was taken 解析：根据while引导的过去时从句，用一般过去时的被动语态，boy与take care of是被动关系，故填was taken。 21. 答案：have been shown 解析：根据since last year可知用现在完成时的被动语态，films与show是被动关系，故填have been shown。 22. 答案：is being widened 解析：根据now可知用现在进行时的被动语态，road与widen是被动关系，故填is being widened。 23. 答案：had been done 解析：“做题”发生在“老师来”之前，用过去完成时的被动语态，exercises与do是被动关系，故填had been done。 24. 答案：will be held 解析：根据next Saturday可知用一般将来时的被动语态，meeting与hold是被动关系，故填will be held。 25. 答案：washes 解析：wash此处用主动形式表被动含义，主语cloth为不可数名词，谓语用第三人称单数，故填washes。 26. 答案：was found 解析：根据this morning可知用一般过去时的被动语态，child与find是被动关系，故填was found。 27. 答案：will have been completed 解析：根据by the end of next month可知用将来完成时的被动语态，project与complete是被动关系，故填will have been completed。 28. 答案：is cleaned 解析：根据every day可知用一般现在时的被动语态，room与clean是被动关系，故填is cleaned。 29. 答案：was written 解析：根据when引导的过去时从句，用一般过去时的被动语态，letter与write是被动关系，故填was written。 30. 答案：will be taken 解析：根据in the future可知用一般将来时的被动语态，measures与take是被动关系，故填will be taken。 31. 答案：has been told 解析：根据since引导的从句，用现在完成时的被动语态，story与tell是被动关系，故填has been told。 32. 答案：is being checked 解析：根据right now可知用现在进行时的被动语态，machine与check是被动关系，故填is being checked。 33. 答案：had been eaten 解析：“食物被吃完”发生在“到达派对”之前，用过去完成时的被动语态，food与eat是被动关系，故填had been eaten。 34. 答案：is being built 解析：根据now可知用现在进行时的被动语态，library与build是被动关系，故填is being built。 35. 答案：was carried 解析：根据last month可知用一般过去时的被动语态，plan与carry out是被动关系，故填was carried。 36. 答案：will be talked 解析：根据tomorrow可知用一般将来时的被动语态，problem与talk about是被动关系，故填will be talked。 37. 答案：had been decorated 解析：“装修房子”发生在“节日”之前，用过去完成时的被动语态，house与decorate是被动关系，故填had been decorated。 38. 答案：can’t be taken 解析：情态动词被动语态：情态动词+be+过去分词，根据常识杂志不能带出阅览室，故填can’t be taken。 39. 答案：has been sung 解析：根据since引导的从句，用现在完成时的被动语态，song与sing是被动关系，故填has been sung。 40. 答案：was being held 解析：根据when引导的过去时从句，用过去进行时的被动语态，meeting与hold是被动关系，故填was being held。 41. 答案：are cut 解析：根据every year可知用一般现在时的被动语态，trees与cut是被动关系，故填are cut。 42. 答案：must be finished 解析：情态动词被动语态：情态动词+be+过去分词，表示“工作必须被完成”，故填must be finished。 43. 答案：has been translated 解析：根据so far可知用现在完成时的被动语态，novel与translate是被动关系，故填has been translated。 44. 答案：was put 解析：根据yesterday可知用一般过去时的被动语态，meeting与put off是被动关系，故填was put。 45. 答案：will be made 解析：根据next year可知用一般将来时的被动语态，law与make是被动关系，故填will be made。 46. 答案：was locked 解析：根据this morning可知用一般过去时的被动语态，door与lock是被动关系，故填was locked。 47. 答案：is assigned 解析：根据every day可知用一般现在时的被动语态，homework与assign是被动关系，故填is assigned。 48. 答案：was sent 解析：根据when引导的过去时从句，用一般过去时的被动语态，man与send是被动关系，故填was sent。 49. 答案：will be being done 解析：根据at this time tomorrow可知用将来进行时的被动语态，experiment与do是被动关系，故填will be being done。 50. 答案：had been corrected 解析：“错误被批改”发生在“上课”之前，用过去完成时的被动语态，mistakes与correct是被动关系，故填had been corrected。 $