Unit6 单元检测题2024-2025学年人教版英语九年级全册

Unit 6 When was it invented? 一. 单项选择（每小题1分，共15分） 从A、B、C、D四个选项中选择可以填入空白处的最佳答案。 (  ) 21. Mr. Yang divided us ______ four groups to practice the conversation. A. among              B. into C. from          D. by (  ) 22. The shoes with high heels are in the newest ______. Many girls wear them. A. brand              B. trade C. style          D. product (  ) 23. The milk has turned ______. If you drink it, you will have a stomachache. A. sour             B. delicious C. crispy        D. fresh (  ) 24. Grandmother likes to go to the garden and ______ the flowers on the spring morning. A. polish            B. smell C. taste         D. mention (  ) 25. This kind of machine ______ cutting meat in big restaurants. A. is used to     B. is made from C. is made into   D. is used for (  ) 26. The article told us ______ to get good scores in the exams. A. where             B. what        C. who             D. how (  ) 27. ______ is said that our history teacher often does volunteer work on weekends. A. One            B. It           C. This              D. That (  ) 28. —How delicious these bananas are. —Yeah. They ______ here from Hainan yesterday. A. are brought    B. brought C. were brought       D. have brought (  ) 29. Ruth’s friends are ______ all girls. Jack is the only boy. A. nearly          B. completely C. specially             D. truly (  ) 30. Mrs. Zhang advised us ______ the math problem in another way. A. to solve     B. solving  C. creating              D. to create (  ) 31. Bill said nothing could stop him ______ his dream. A. to achieve   B. from avoiding C. to avoid            D. from achieving (  ) 32. ______ students in the classroom ______ twenty. The others are in the library. A. The number of; is B. A number of; are C. The number of; are  D. A number of; is (  ) 33. Our English teacher encourages us ______ English more after class. A. to invent     B. inventing   C. to practice        D. practicing (  ) 34. You’re a popular girl, Grace, and a lot of young people ______ you. A. look after   B. look up to C. look up         D. look for (  ) 35. —Jim, can you help me with my English homework? —______. I’m good at English. A. Good luck  B. My pleasure C. Sounds boring    D. Thank you 二. 完形填空（每小题1分，共10分）  先通读下面短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。 Are you often tired after a long trip? There is a cool product that can help you reduce (减少) the uncomfortable feelings you have   36   a long trip. The Ostrich Pillow (鸵鸟枕) is a kind of pillow which is    37   to carry. It can help you nap (小睡) anytime,   38  , including in airports and on planes. The Ostrich Pillow was   39   by Ali Ganjavian, who was born in England. He said, “We   40   many hours working every day and sleep is an important part of our day. So I thought why not create a   41   that can help us relax ... We have   42   it in airports, trains, libraries, offices, on planes, on a sofa and even on the floor and it’s really   43  .”  The Ostrich Pillow is very hard. It has a hole in which to put your head, and a mouth hole that   44   you to breathe easily. It   45   has two side holes where you can put your hands — if you nap at a table in a library, for example. The Ostrich Pillow now can be bought online. (  ) 36. A. before        B. since C. until               D. during (  ) 37. A. easy             B. difficult        C. possible      D. impossible (  ) 38. A. somewhere B. somebody   C. anywhere        D. anybody (  ) 39. A. required   B. bought         C. discovered    D. invented (  ) 40. A. cost          B. take             C. get                 D. spend (  ) 41. A. way       B. product        C. place       D. time (  ) 42. A. tried          B. mentioned C. requested        D. interviewed (  ) 43. A. lively      B. boring C. wonderful     D. active (  ) 44. A. allows      B. teaches         C. asks                D. encourages         (  ) 45. A. still        B. also               C. just                D. already  三. 情景交际（每小题1分，共5分） 根据对话内容，从方框中选出恰当的选项补全对话，其中有两项多余。 A: Hi, Bill, do you know about National Inventors’ Day? B: No, I have never heard of it. (46) _____ A: On February 11th. B: I remember the great inventor Thomas Edison was born on that day. A: You’re right and you have a good memory. B: Thank you. (47) _____ A: Of course. There have been a lot of inventors in history. They made millions of inventions and some of them have changed the world. B: In order to help remember these inventors, people named February 11th for National Inventors’ Day, right? A: (48) _____ But you made a mistake. It was Ronald Reagan, the President (总统) of the United States of America that named the date. B: There must be many kinds of activities all over the world on that day. A: You’re right. Our school also celebrates National Inventors’ Day. B: (49) _____ A: Students show their own inventions. Some inventions are wonderful and exciting. B: Sounds interesting. (50) _____ Can I show them at your school? A: No problem. You are more than welcome to.  A. You’re very clever. B. I like inventing small things, too. C. How many inventions did it mention? D. When is it? E. Some inventions are useful. F. How do you celebrate it? G. Can you tell me how it got started? 四. 阅读理解（每小题2分，共30分） ❋ A ❋        The wagon train (马拉篷车队) traveled for weeks, and Emily was bored and tired — tired of not having a real bed to sleep in. She was bored because there was nothing fun for a girl her age to do. Mom promised it wouldn’t be too much longer, but the trip seemed to take a very very long time.        Then, one day, a rabbit caught Emily’s eye. Maybe she could catch it, and then she’d have a pet! Emily ran after the rabbit into a small forest behind the wagons, but it disappeared (消失). Emily looked and looked for it, but at last she gave up. She turned to go back, but nothing looked familiar (熟悉的). She started in one direction, but it was the wrong way. Emily tried another direction, but soon found that was wrong, too.        Emily was scared. What if she couldn’t find the wagons? What if they didn’t realize she was lost and just kept moving farther and farther away from her? What if some wild animals hurt her?        Emily sat on the ground and started to cry ... but wait ... did she hear voices? She stood up and ran towards them. As she got closer, she heard her mom’s voice and the voices of some of the men from the train. Then she could see them. Emily ran as fast as she could, right into her mom’s welcoming arms.        Mom carried Emily back to their wagon and put her to bed. Emily was glad she was home. Home was wherever Mom was. She’d never say she felt bored again. 根据材料内容选择最佳答案。 (  ) 51. According to Paragraph 1, we can know that Emily wanted to ______. A. take a long trip             B. sleep in a real bed    C. remember something fun  D. play with her mom (  ) 52. Emily tried to catch a rabbit to ______. A. take it to school               B. give it to her mom  C. play with it               D. compete with it (  ) 53. Paragraph 3 mainly talks about ______. A. how Emily got lost        B. what Emily saw  C. how Emily hurt herself     D. what Emily feared (  ) 54. Emily found her mom ______. A. by her voice                    B. by her smell    C. with the help of the rabbit  D. with the help of the men from the train (  ) 55. Which of the following is in correct order according to Emily’s changing feelings? A. bored, scared, excited, sad, glad   B. bored, sad, excited, scared, glad   C. bored, excited, sad, scared, glad D. bored, excited, scared, sad, glad ❋ B ❋        It’s always a happy moment when you get some pocket money (零花钱). But have you ever thought about how to spend your pocket money wisely? Here is some advice.        Make a list.        When you get your pocket money, don’t get too excited. We all have a lot of things that we want. But do you really need them? That’s why it is necessary to make a list before you spend money. Start with the thing you want most. You can also write down how much it costs or how important it is in your life. By doing this, you will see if it is really necessary to buy it.        Help others.        How about being more selfless (无私的) and using your pocket money to help others? We all know that there are many people in the world who are in need of our help. Helping others brings out the best in us and is one of the greatest joys in our lives. So consider using your pocket money to do something useful and helpful, and feel how you can make a difference.        Save (储蓄) as much as you can.        There is an old saying that “Money doesn’t grow on trees.” If you spend all your pocket money right away, you’ll have no money until your next “pay day”. A wallet sometimes might not be the best place to save money because it may make it easier for you to spend your money. Get a piggy bank (储蓄罐) or ask your parents to start a savings account (账户) for you. Someday when you look back, you’ll get a strong feeling of achievement by saving so much money by yourself! 根据材料内容选择最佳答案。 (  ) 56. Why should we make a list before spending money? A. To help us buy things that we want most. B. To make sure we buy everything we need. C. To know which thing is the most expensive. D. To know if we have enough money for the things. (  ) 57. What does the underlined sentence “Money doesn’t grow on trees” mean? A. Money doesn’t come easily. B. Money is as important as trees. C. One can make money by growing trees. D. We should use our money to protect the environment. (  ) 58. The best place to save money can be ______ according to the writer. A. our wallet                      B. our parents’ wallet C. our piggy bank               D. our parents’ account (  ) 59. Which of the following is NOT true according to the passage? A. Helping others can bring us great happiness. B. Pocket money can be used to do something useful and helpful. C. We should tell our parents before we buy something expensive. D. Saving much money can make us get a strong feeling of achievement. (  ) 60. Which is the best title of the passage? A. How to help others with pocket money           B. How to save pocket money C. How to get pocket money                      D. How to spend pocket money ❋ C ❋        A recent report by the American Heart Association — a big organization that encourages adults and kids to stay healthy — found that kids 30 years ago could run faster and longer than kids today. The report found that today’s kids are 15 percent less healthy than kids from years ago. What does that mean? Let’s say you’re a 12-year-old girl. You’re not a sports superstar, but you’re pretty good — kind of average (平均的). Let’s say your mom was the same kind of kid when she was your age. Now imagine we could set up a mile race between you and your mom from 30 years ago. Wouldn’t that be cool? What wouldn’t be so cool is that the study shows your mom would probably beat you in the race by 90 seconds (秒). That’s a lot. It was the same for boys. An average boy from 30 years ago would beat an average boy today.        The scientists who did the study think there are some reasons for the big fall in fitness. First, too many of today’s kids are overweight (超重的). That makes it harder for them to run fast. Second, kids today don’t get enough exercise. Doctors say kids should get at least 60 minutes of exercise a day. That’s why it is important for schools to have P.E. classes.        So what should kids do? If you don’t want your mom and dad to think they are faster than you, don’t spend a lot of time playing video games, watching TV or movies. Instead, do things that will get you up and to move. 根据材料内容简要回答下列问题。 61. What did the report find? ___________________________________________ 62. How did the writer explain the result of the report? ___________________________________________ 63. How many reasons does the writer give to explain the big fall in fitness? ___________________________________________ 64. How much exercise do kids need a day according to the passage? ___________________________________________ 65. What is the last paragraph mainly about? ___________________________________________ 五. 词汇运用（每小题1分，共5分） 根据句意，用括号内所给单词的适当形式填空。 66. You can say something about your ________ (day) life. 67. Ten favorite songs were ________ (list) by the students soon. 68. Are there any ________ (Canada) in your hotel? 69. I ________ (sudden) realized that there was someone following me. 70. That shop has the best clothes, so its ________ (customer) are increasing. 六. 完成句子（每小题1分，共5分） 根据汉语意思完成英语句子，每空一词。 71. 王老师的确是我曾经遇到过的最好的老师。 Mr. Wang is ________ ________ the best teacher I have ever met. 72. 这两年来你们学校发生了很大的变化吗？ Have great changes ________ ________ in your school in the past two years? 73. 我是偶然想到这个主意的。 I came up with this idea ________ ________. 74. 爸爸正在忙着把这本书翻译成德语。 Dad is busy ________ this book ________ German. 75. 一个小男孩掉进了河里。幸运的是，他的狗救了他。 A little boy ________ ________ the river. Luckily, his dog saved him. 七. 综合填空（每小题1分，共10分） 阅读短文，从方框中选择恰当的词并用其适当形式填空，使短文通顺、意思完整。每词限用一次。 drop, attention, seem, although, scientist, compare, like, look, spend, important        We love robot dogs, but do real dogs like robot people? It (76) ______ that they do — if the robot does human things (77) ______ talk and move.        (78) ______ have found that dogs react (作出反应) socially to robots when the robots do things socially towards them. Looks (外貌) don’t seem to be (79) ______. Even though a robot (80) ______ nothing like a human and doesn’t have a smell, it can catch a dog’s (81) ______ if it sounds like a human. Scientists discovered this by (82) ______ the way dogs reacted to two different robots: one called them by name, and one just made beeping sounds (哔哔声). The dogs were more likely to react to the talking robot, find the food it (83) ______, and follow its orders. They (84) ______ more time near the robot or looking at its head when the robot did things socially.        (85) ______ the dogs probably didn’t mistake the robot for a person, they might still help scientists make a more human robot. 八. 书面表达（15分） 昨天你校发明节隆重开幕，在今天的英语口语课上，老师要求同学们围绕“你所知道的发明创造”这一话题进行简短发言。请你根据下表内容提示为此次发言做准备。 要求：1. 发言稿需包括表格内容，可适当发挥； 2. 90词左右，发言稿的开头和结尾已给出，不计入总词数。      What Who When The telephone Alexander Bell In 1876 The car Carl Benz In 1885 The TV John Baird In around 1927 Hello, everyone! There are many inventions that have changed the world. Here’s a short introduction of some useful inventions. _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ That’s all. Thanks! 以下是对这份英语练习题的详细解析： 一. 单项选择 21. **答案**：B **解析**：divide...into...是固定短语，意为“把……分成……”，这里表示杨老师把我们分成四组练习对话，所以选B。 22. **答案**：C **解析**：in the newest style表示“以最新的款式”，根据“许多女孩都穿它们”可知高跟鞋是最新款式，brand品牌；trade贸易；product产品，均不符合语境，所以选C。 23. **答案**：A **解析**：根据“如果你喝了它，你会肚子疼”可知牛奶变质了，sour酸的；delicious美味的；crispy酥脆的；fresh新鲜的，只有sour符合，所以选A。 24. **答案**：B **解析**：根据“去花园”和“花”可知应该是闻花的味道，smell闻；polish磨光；taste品尝；mention提及，所以选B。 25. **答案**：D **解析**：be used for doing sth.表示“被用于做某事”，这种机器被用于大餐馆切肉，be used to do sth.也表示“被用于做某事”，但这里是cutting，所以A不对；be made from由……制成（看不出原材料）；be made into被制成，均不符合，所以选D。 26. **答案**：D **解析**：根据“这篇文章告诉我们”和“在考试中取得好成绩”可知是告诉我们如何取得好成绩，how如何；where哪里；what什么；who谁，所以选D。 27. **答案**：B **解析**：It is said that...是固定句型，意为“据说……”，所以选B。 28. **答案**：C **解析**：根据“yesterday”可知用一般过去时，又因为“它们（香蕉）”是被带来的，要用被动语态，一般过去时的被动语态结构是was/were + 过去分词，所以选C。 29. **答案**：A **解析**：nearly几乎；completely完全地；specially特别地；truly真正地。根据“杰克是唯一的男孩”可知露丝的朋友几乎都是女孩，所以选A。 30. **答案**：A **解析**：advise sb. to do sth.建议某人做某事，solve the problem解决问题，create创造，根据“数学问题”可知是解决问题，所以选A。 31. **答案**：D **解析**：stop sb. from doing sth.阻止某人做某事，根据“没有什么能阻止他”和“他的梦想”可知是实现梦想，achieve实现；avoid避免，所以选D。 32. **答案**：A **解析**：the number of...表示“……的数量”，作主语时谓语动词用单数；a number of...表示“许多……”，作主语时谓语动词用复数。根据“教室里学生的数量是二十”可知选A。 33. **答案**：C **解析**：encourage sb. to do sth.鼓励某人做某事，根据“英语”可知是练习英语，practice练习；invent发明，所以选C。 34. **答案**：B **解析**：look after照顾；look up to钦佩；look up查阅；look for寻找。根据“你是个受欢迎的女孩”可知很多年轻人钦佩你，所以选B。 35. **答案**：B **解析**：根据“我擅长英语”可知愿意帮忙，My pleasure. 表示“乐意效劳”；Good luck祝你好运；Sounds boring听起来很无聊；Thank you谢谢你，所以选B。 二. 完形填空 36. **答案**：D **解析**：根据“有一种很酷的产品可以帮助你减少不舒服的感觉”和“长途旅行”可知是在长途旅行期间，during在……期间；before在……之前；since自从；until直到，所以选D。 37. **答案**：A **解析**：根据“它可以帮助你在任何时候小睡”可知这种鸵鸟枕便于携带，easy容易的，便于……的；difficult困难的；possible可能的；impossible不可能的，所以选A。 38. **答案**：C **解析**：根据“包括在机场和飞机上”可知是在任何地方，anywhere任何地方；somewhere某地；somebody某人；anybody任何人，所以选C。 39. **答案**：D **解析**：根据“鸵鸟枕”和“阿里·甘贾维安”可知是被发明，invent发明；require要求；buy买；discover发现，所以选D。 40. **答案**：D **解析**：spend time (in) doing sth.花费时间做某事，是固定用法，cost的主语是物，take常用It takes sb. some time to do sth.结构，get得到，所以选D。 41. **答案**：B **解析**：根据“有一种很酷的产品”可知这里是说创造一种产品，product产品；way方式；place地方；time时间，所以选B。 42. **答案**：A **解析**：根据“在机场、火车上、图书馆、办公室、飞机上、沙发上甚至地板上”可知是尝试使用它，try尝试；mention提及；request请求；interview采访，所以选A。 43. **答案**：C **解析**：根据前文描述可知这个产品真的很棒，wonderful很棒的；lively活泼的；boring无聊的；active积极的，所以选C。 44. **答案**：A **解析**：allow sb. to do sth.允许某人做某事，这个口洞允许你轻松呼吸，teach教；ask问；encourage鼓励，所以选A。 45. **答案**：B **解析**：前面提到了有一个放头的洞和一个口洞，这里又说有两个放手的侧洞，所以用also也；still仍然；just仅仅；already已经，所以选B。 三. 情景交际 46. **答案**：D **解析**：根据答语“On February 11th.”可知是询问时间，When is it?符合语境，所以选D。 47. **答案**：G **解析**：根据答语“Of course. There have been a lot of inventors in history...”可知是询问能否告诉关于它是如何开始的，Can you tell me how it got started?符合语境，所以选G。 48. **答案**：A **解析**：根据上文“为了帮助记住这些发明家，人们把2月11日命名为国家发明家日，对吗？”和后面“但你犯了个错误”可知这里是肯定对方的部分说法，You’re very clever.符合语境，所以选A。 49. **答案**：F **解析**：根据答语“Students show their own inventions.”可知是询问如何庆祝，How do you celebrate it?符合语境，所以选F。 50. **答案**：B **解析**：根据后面“我能在你们学校展示它们吗？”可知这里说自己也喜欢发明小玩意，I like inventing small things, too.符合语境，所以选B。 四. 阅读理解 A篇 51. **答案**：B **解析**：根据第一段“Emily was bored and tired — tired of not having a real bed to sleep in.”可知Emily想睡在真正的床上，所以选B。 52. **答案**：C **解析**：根据第二段“Maybe she could catch it, and then she’d have a pet!”可知她想抓兔子是为了和它玩，当宠物，所以选C。 53. **答案**：D **解析**：第三段“What if she couldn’t find the wagons? What if they didn’t realize she was lost and just kept moving farther and farther away from her? What if some wild animals hurt her?”主要讲了Emily害怕的事情，所以选D。 54. **答案**：A **解析**：根据第四段“but wait... did she hear voices? She stood up and ran towards them. As she got closer, she heard her mom’s voice and the voices of some of the men from the train.”可知Emily是通过声音找到妈妈的，所以选A。 55. **答案**：D **解析**：Emily一开始是bored（无聊），看到兔子后excited（兴奋），迷路后scared（害怕），坐在地上哭时sad（难过），找到妈妈后glad（高兴），所以顺序是bored, excited, scared, sad, glad，选D。 B篇 56. **答案**：B **解析**：根据“Make a list”部分“That’s why it is necessary to make a list before you spend money. Start with the thing you want most. You can also write down how much it costs or how important it is in your life. By doing this, you will see if it is really necessary to buy it.”可知列清单是为了确保我们买的都是我们需要的东西，所以选B。 57. **答案**：A **解析**：“Money doesn’t grow on trees.”意思是钱不是长在树上的，即钱来之不易，所以选A。 58. **答案**：C **解析**：根据“Save (储蓄) as much as you can.”部分“A wallet sometimes might not be the best place to save money because it may make it easier for you to spend your money. Get a piggy bank (储蓄罐) or ask your parents to start a savings account (账户) for you.”可知最好的存钱地方是储蓄罐，所以选C。 59. **答案**：C **解析**：文章中未提及买贵的东西之前要告诉父母，A选项根据“Helping others brings out the best in us and is one of the greatest joys in our lives.”可知帮助别人能带来快乐；B选项根据“So consider using your pocket money to do something useful and helpful”可知零花钱可以用来做有用和有帮助的事；D选项根据“Someday when you look back, you’ll get a strong feeling of achievement by saving so much money by yourself!”可知存很多钱能带来成就感，所以选C。 60. **答案**：D **解析**：文章主要讲了如何明智地花零花钱，包括列清单、帮助别人、尽可能储蓄等，所以“How to spend pocket money”作为标题最合适，选D。 C篇 61. **答案**：The report found that kids 30 years ago could run faster and longer than kids today and today’s kids are 15 percent less healthy than kids from years ago. **解析**：根据第一段“A recent report by the American Heart Association... found that kids 30 years ago could run faster and longer than kids today. The report found that today’s kids are 15 percent less healthy than kids from years ago.”可得出答案。 62. **答案**：The writer set up a mile race between a 12-year-old girl today and her mom from 30 years ago and the same for boys to explain the result of the report. **解析**：根据第一段“Let’s say you’re a 12-year-old girl... Now imagine we could set up a mile race between you and your mom from 30 years ago. Wouldn’t that be cool? What wouldn’t be so cool is that the study shows your mom would probably beat you in the race by 90 seconds (秒). That’s a lot. It was the same for boys.”可知作者通过假设一个12岁女孩和她30年前同龄的妈妈进行一英里赛跑，男孩也一样，来解释报告结果。 63. **答案**：Two. **解析**：根据第二段“First, too many of today’s kids are overweight (超重的). That makes it harder for them to run fast. Second, kids today don’t get enough exercise.”可知作者给出了两个原因，即孩子超重和缺乏锻炼。 64. **答案**：At least 60 minutes of exercise a day. **解析**：根据第二段“Doctors say kids should get at least 60 minutes of exercise a day.”可知孩子们每天至少需要60分钟的锻炼。 65. **答案**：It’s mainly about what kids should do to improve their fitness, such as not spending a lot of time playing video games, watching TV or movies and doing things that will get them up and to move. **解析**：最后一段主要讲了孩子们应该做什么来提高身体素质，比如不要花很多时间玩电子游戏、看电视或电影，而是做一些能让自己动起来的事情。 五. 词汇运用 66. **答案**：daily **解析**：daily life日常生活，是固定短语，所以用day的形容词形式daily。 67. **答案**：listed **解析**：songs和list之间是被动关系，句子是一般过去时的被动语态，结构是was/were + 过去分词，list的过去分词是listed。 68. **答案**：Canadians **解析**：根据“Are there any...”可知这里用名词复数，Canadian加拿大人，复数是Canadians。 69. **答案**：suddenly **解析**：这里修饰动词realized，要用副词形式，sudden的副词是suddenly。 70. **答案**：customers **解析**：根据“are increasing”可知主语是复数，customer顾客，复数是customers。 六. 完成句子 71. **答案**：really; the **解析**：“的确”用really，“the best”是最高级，前面要加the。 72. **答案**：taken; place **解析**：take place发生，根据“Have...changed”可知用现在完成时，take的过去分词是taken。 73. **答案**：by; accident/chance **解析**：by accident/chance偶然，是固定短语。 74. **答案**：translating; into **解析**：be busy doing sth.忙于做某事，translate...into...把……翻译成……，所以用translating。 75. **答案**：fell; into **解析**：fall into掉进，根据“saved”可知用一般过去时，fall的过去式是fell。 七. 综合填空 76. **答案**：seems **解析**：It seems that...似乎……，是固定句型，主语It是第三人称单数，所以用seems。 77. **答案**：like **解析**：根据“如果机器人做像说话和移动这样的人类的事情”可知用like像。 78. **答案**：Scientists **解析**：根据后面“have found”可知主语是人，结合语境可知是科学家发现的，scientist科学家，这里用复数Scientists。 79. **答案**：important **解析**：根据“即使机器人看起来一点也不像人类，也没有气味”可知外貌似乎不重要，important重要的。 80. **答案**：looks **解析**：look like看起来像，主语a robot是第三人称单数，所以用looks。 81. **答案**：attention **解析**：catch one’s attention吸引某人的注意力，是固定短语，所以用attention。 82. **答案**：comparing **解析**：by是介词，后面接动词的-ing形式，compare比较，这里用comparing。 83. **答案**：dropped **解析**：根据“找到它掉落的食物”可知用drop掉落，这里用一般过去时，drop的过去式是dropped。 84. **答案**：spent **解析**：spend time doing sth.花费时间做某事，这里用一般过去时，spend的过去式是spent。 85. **答案**：Although **解析**：根据“狗可能没有把机器人错当成一个人”和“它们可能仍然会帮助科学家制造一个更像人类的机器人”可知是转折关系，用Although尽管。 八. 书面表达 Hello, everyone! There are many inventions that have changed the world. Here’s a short introduction of some useful inventions. The telephone was an important invention. It was invented by Alexander Bell in 1876. It made communication much easier. People could talk to each other over long distances. The car is another great invention. Carl Benz invented the car in 1885. Cars have made our transportation more convenient and have greatly changed our way of life. The TV was invented by John Baird in around 1927. It has become one of the most popular things in our daily life. We can get a lot of information and entertainment from it. These inventions have really made a big difference to our world. That’s all. Thanks! 学科网（北京）股份有限公司 $$