第17课时 九年级Units 5～6背记本-【智乐星中考·学考传奇】2025年山东省济南市中考英语背默本（人教版PPT）

1 第17课时　九年级 Units 5~6 2 【教材词汇】 chopstick 筷子n. coin 硬币n. fork 餐叉; 叉子n. blouse (女式)短上衣; 衬衫n. silver 银; 银器n. 银色的adj. glass 玻璃n. cotton 棉; 棉花n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 3 steel 钢; 钢铁n. fair 展览会; 交易会n. grass 草; 草地n. widely 广泛地; 普遍地adv. process 加工; 处理v. 过程n. pack 包装; 装箱v. business 生意; 商业n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 4 France 法国 local 当地的; 本地的adj. brand 品牌; 牌子n. avoid 避免; 回避v. handbag 小手提包n. mobile 可移动的; 　非固定的adj. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 5 everyday 每天的; 日常的adj. boss 老板; 上司n. Germany 德国 surface 表面; 表层n. material 材料; 原料n. punish 处罚; 惩罚v. traffic 交通; 　路上行驶的车辆n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 6 cap (尤指有帽舌的)帽子n. glove (分手指的)手套n. international 国际的adj. competitor 参赛者; 竞争者n. its 它的pron. form 形式; 类型n. clay 黏土; 陶土n. balloon 气球n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 7 scissors 剪刀(pl. )n. lively 生气勃勃的; 　(色彩)鲜艳的adj. historical (有关)历史的adj. heat 热; 高温n. 加热; 变热v. polish 磨光; 修改; 润色v. complete 完成v. heel 鞋跟; 足跟n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 8 scoop 勺; 铲子n. style 样式; 款式n. project 项目; 工程n. zipper(=zip) 拉链; 拉锁n. daily 每日的; 日常的adj. website 网站n. pioneer 先锋; 先驱n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 9 list 列表; 列清单v. 名单; 清单n. mention 提到; 说到v. accidental 意外的; 偶然的adj. ruler 统治者; 支配者n. boil 煮沸; 烧开v. remain 保持不变; 剩余v. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 10 sage 圣人; 智者n. doubt 疑惑; 疑问n. 怀疑v. fridge 冰箱n. low 低的; 矮的adj. somebody 某人pron. 重要人物n. warn 警告; 告诫v. lock 锁上; 锁住v. 锁n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 11 earthquake 地震n. sudden 突然(的)adj. bell 钟(声); 铃(声)n. biscuit 饼干n. cookie 曲奇饼n. musical 音乐的; 　有音乐天赋的adj. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 12 instrument 器械; 仪器; 工具n. crispy 脆的; 酥脆的adj. salty 咸的adj. sour 酸的; 有酸味的adj. customer 顾客; 客户n. Canadian 加拿大的; 　加拿大人的adj. 　加拿大人n. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 13 divide 分开; 分散v. basket 篮; 筐n. professional 职业的; 专业的adj. nearly 几乎adv. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 14 【重点单词变化及拓展】 environmental 自然环境的; 　有关环境的adj. →environment 环境n. leaf 叶; 叶子n. →leaves (复数) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 15 produce 生产; 制造; 出产v. →product 产品; 制品n. →producer 生产商; 　制造商; 产地n. →production 生产; 制造; 　制作n. postman 邮递员n. →postmen (复数) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 16 electricity 电; 电能n. →electronic 电子的; 电子设备的adj. →electric 电的; 用电的; 　电动的; 发电的adj. pleasure 高兴; 愉快n. →please 使高兴; 使愉快v. →pleasant 令人愉快的(主语物)adj. →pleased 高兴的; 　满意的(主语人)adj. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 17 spread 传播; 展开v. 蔓延; 　传播n. →spread (过去式/过去分词) national 国家的; 民族的adj. →nation 国家; 民族n. →native 本地人; 当地人n. 　本地的; 当地的adj. 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 18 trade 贸易; 交易n. 做买卖; 　从事贸易v. →trader 商人n. popularity 受欢迎; 普及n. →popular 受喜爱的; 　受欢迎的; 当红的adj. wolf 狼n. →wolves (复数) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 19 translate 翻译v. →translation 翻译n. →translator 译员; 译者; 翻译家n. ring (使)发出钟声或铃声; 　打电话v. →rang (过去式) →rung (过去分词) hero 英雄; 男主角n. →heroes (复数) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 20 【教材短语】 be made of silver 用银制成的 be made in Thailand 在泰国制造的 the art and science fair 艺术和科学展览会 environmental protection 环境保护 grass and leaves 草和叶子 both in the past and now 在过去和现在 in many different areas 在许多不同的地区 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 21 be widely known for 因……而广为人知 as far as I know据我所知 by hand手工 the difficult search for American products in the US 　在美国为买美国产品的艰难搜寻 no matter what =whatever不论什么; 无论什么 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 22 buy a toy car for my cousin 　给我的表弟买一辆玩具车 be not the only things made in China 　不是中国制造的唯一的东西 avoid doing 避免做…… high-technology products高科技产品 careless driving粗心驾驶 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 23 an international kite festival 国际风筝节 competitions for the best kites 　(角逐)最好的风筝的比赛 beauty in common things 普通事物中的美 the most common things最普通的东西 be turned into被变成…… 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 24 send out发送出去 be used at festivals and other celebrations 　被用于节日和其他的庆祝活动 be made of bamboo and covered with paper 　用竹子制成, 用纸包裹 rise into升入 be seen as被看作 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 25 paper cutting 剪纸 things about Chinese history 关于中国历史的事物 fairy tale 童话故事 be fired at a very high heat 用非常高的温度烧制 be polished and painted 被抛光和上色 materials used 使用的材料 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 26 traditional Chinese art forms 　传统的中国艺术形式 be shaped by hand into things such as. . . 　被手工塑造成一些形象, 比如…… be covered with paint 被颜料覆盖 shoes with special heels 有特殊鞋跟的鞋子 run on electricity用电驱动 change the style of the shoes 改变鞋的样式 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 27 small inventions that changed the world 　改变世界的小发明 with pleasure 乐意效劳 such a great invention 如此伟大的发明 have a point 有道理 it mentioned that. . . 列举了…… be invented by. . . 被……发明 be used widely 被广泛使用 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 28 how tea was invented by accident 　茶是怎样被偶然发明的 an accidental invention 一项偶然的发明 boil drinking water over an open fire 　在户外的炉火上烧饮用水 without doubt 毫无疑问; 的确 all of a sudden 突然; 猛地 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 29 work on the invention of the telephone 　致力于电话的发明 by mistake 错误地; 无意中 make the customer happy 让顾客高兴 cook them for a long time until they were crispy 　把它们炸了很长时间直到它们很脆为止 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 30 the first basketball game in history 　历史上的首次篮球赛 become an event at the Olympics 　成为奥运会的比赛项目 create a game to be played inside on a hard floor 　创造了一种在室内的硬地板上玩的游戏 divide the men in his class into two teams 　把他班里的男生分成两队 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 31 not only. . . but also. . . 不但……而且…… more and more foreign players 越来越多的外国球员 look up to 钦佩; 仰慕 the professional basketball groups in America and China 在美国和中国的职业篮球团体 quickly taking notes in class 在课堂上快速记笔记 invent things which are nearly the same 　发明几乎是一样的东西 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 32 doubt whether the inventor came up with the idea himself or herself 怀疑是不是发明者自己想出的这个主意 use someone else’s idea to create his or her invention 　使用了别人的想法来创造他/她的发明 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 33 【单元重点句型】 Unit 5　What are the shirts made of? 1. —What are the shirts made of? 衬衫是用什么制成的? —They are made of cotton. 它们是用棉花制成的。 2. Where is tea produced in China? 中国哪里产茶? 3. How is tea produced? 茶是如何生产的? 4. As far as I know, tea plants are grown on the sides of mountains. 据我所知, 茶树被种植在山坡上。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 34 5. When the leaves are ready, they are picked by hand and then are sent for processing. 当叶子长成时, 它们就被手工采摘下来, 然后被送去加工。 6. The tea is packed and sent to many different countries and places around China. 茶叶被打包, 然后被运往许多不同的国家和国内不同的地方。 7. It seems that many people all over the world drink Chinese tea. 似乎世界各地的许多人都喝中国茶。 8. People say that tea is good for both health and business!人们说茶对健康和生意都有好处! 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 35 P35 3a (9~15) 9. No matter what you may buy, you might think those products were made in those countries. 无论你可能买什么, 你也许认为那些产品就是在那些国家制造的。 10. He found it interesting that so many products in the local shops were made in China. 他发现了一个有趣的现象: 在当地的商店里, 许多产品是中国制造的。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 36 11. But even though most of the toys were American brands, they were made in China. 但是尽管大多数玩具都是美国的品牌, 它们却是中国制造的。 12. But I had to visit five or six stores before finding a pair made in America! 但是我不得不逛五六家商店才找到一双美国制造的篮球鞋! 13. He realized that Americans can hardly avoid buying products made in China. 他意识到美国人几乎无法避免购买中国制造的产品。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 37 14. Kang Jian thinks it’s great that China is so good at making these everyday things. 康健认为中国擅长制造这些日常用品是很了不起的。 15. More importantly, China is also making more high-technology products that people can buy and use in all parts of the world. 更重要的是, 中国也在制造更多的高科技产品, 人们可以在世界各地购买和使用。 16. It’s made of used wood and glass. 它是用二手木头和玻璃制成的。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 38 17. People grow tea in Hangzhou. 人们在杭州种植茶。(主动语态) Tea is grown (by people) in Hangzhou. 茶(被人们)在杭州种植。(被动语态) 18. People under 18 aren’t allowed to drive in China. 在中国, 18岁以下的人不被允许开车。 19. Most of the earth’s surface is covered by water. 地球表面的大部分被水覆盖。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 39 20. Farmers plant the tea on the sides of mountains. 农民在山坡上种植茶。(主动语态) The tea is planted on the sides of mountains by farmers. 茶被农民种植在山坡上。(被动语态) 21. This shop uses the best materials to make dresses. 这家店铺用最好的材料做连衣裙。(主动语态) The best materials are used by this shop to make dresses. 最好的材料被这家店铺用来做连衣裙。(被动语态) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 40 22. The judge punished the careless driver for the traffic accident. 法官因交通事故惩罚了粗心的司机。(主动语态) The careless driver was punished by the judge for the traffic accident. 粗心的司机因交通事故受到了法官的惩罚。(被动语态) 23. Our family does not use this silver plate very often. 我们家不常用这个银盘子。(主动语态) This silver plate is not used very often by our family. 这个银盘子不常被我们家使用。(被动语态) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 41 24. The international kite festival is held in April every year. 国际风筝节在每年四月举办。 25. The competitors at the festival are from all over the world. 风筝节上的参赛者来自世界各地。 26. Some of the kites Zheng Yun saw were made of silk or paper. Some were painted with colorful drawing. 郑云看见的风筝中一些是由丝绸或纸制成的。一些风筝绘有多彩的图画。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 42 P38 2b (27~42) 27. Each different part of China has its own special forms of traditional art. 中国每个不同的地区都有它自己独特的传统艺术形式。 28. These usually try to show the things that are important in life, such as love, beauty and family. 这些艺术形式通常尽力展示生活中重要的东西, 例如爱、美和家庭。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 43 29. The most common things, from paper to clay to bamboo, are turned into objects of beauty. 从纸张到陶土再到竹子, 这些最为普通的东西, 都变成了精美的物品。 30. According to Chinese history, sky lanterns were first used by Zhuge Kongming. 根据中国的历史, 孔明灯最早被诸葛孔明使用。 31. He sent them out to ask for help when in trouble. 当处于困境中时, 他就放出孔明灯寻求帮助。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 44 32. When the lanterns are lit, they slowly rise into the air like small hot-air balloons for all to see. 当灯笼被点亮, 它们就像小的热气球, 慢慢升到空中, 大家都能看到。 33. They are seen as bright symbols of happiness and good wishes. 它们被看作是幸福和美好祝愿的鲜明象征。 34. Paper cutting has been around for over 1, 500 years. 剪纸已经有1 500多年(的历史)了。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 45 35. Paper cutting sounds very easy but it can be difficult to do. 剪纸听起来很容易, 但做起来可能会很难。 36. The paper, usually red, is folded before it is cut with scissors. 纸, 通常是红色的, 在用剪刀剪之前先折叠。 37. During the Spring Festival, they are put on windows, doors and walls as symbols of wishes for good luck and a happy new year. 在春节期间, 它们被贴在窗户上、门上和墙上, 作为祈求好运和快乐的新年的象征。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 46 38. Chinese clay art is famous because the clay pieces are so small but they look very real. 中国的陶艺很出名, 因为陶艺作品很小, 但它们看上去很逼真。 39. The pieces are usually cute children or lively characters from a Chinese fairy tale or historical story. 这些作品(形象)通常是些可爱的孩子或者是中国童话故事或历史故事中的生气勃勃的人物角色。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 47 40. The pieces are carefully shaped by hand from a very special kind of clay and then allowed to air-dry. 这些作品通过手工用一种特殊的陶土精心塑型, 然后再自然晾干。 41. It takes several weeks to complete everything. 完成这一切花费数周的时间。 42. These small pieces of clay art show the love that all Chinese people have for life and beauty. 这些小小的陶艺作品表达了所有中国人对生活和美的热爱。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 48 43. But today, people light the lanterns and watch them rise into the sky with their wishes. 但是今天, 人们点燃孔明灯, 看着它们带着他们的祝愿升到空中。 44. The art of paper cutting turns a simple thing like a piece of paper into a beautiful piece of art. 剪纸艺术把像一张纸这样简单的东西变成一件美丽的艺术品。 45. Cheese is made from milk. 奶酪是由牛奶制成的。 46. There is a lot of research on how languages are learned. 有很多关于怎样学习语言的研究。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 49 Unit 6　When was it invented? 1. I think the TV was invented before the car. 我认为电视机是在汽车之前被发明的。 2. —Can you help me think of an invention? 你能帮我想一个发明吗? —With pleasure!乐意效劳! 3. Think about how often it’s used in our daily lives. 想想它在我们的日常生活中多么频繁地被使用吧。 4. You do seem to have a point. 看来你说的确实有点道理。 5. The pioneers of different inventions were listed there. 那里列举了不同发明的创始者。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 50 P43 3a (6~18) 6. Did you know that tea, the most popular drink in the world(after water), was invented by accident? 你知道茶这种在世界上最受欢迎的饮品(仅次于水), 是偶然被发明的吗? 7. Many people believe that tea was first drunk about 5, 000 years ago. 许多人认为大约在5 000年前茶首次被饮用。 8. It is said that a Chinese ruler called Shen Nong was the first to discover tea as a drink. 据说有一位叫作神农的中国统治者最早发现了茶可以饮用。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 51 9. Some leaves from a tea plant fell into the water and remained there for some time. 一些叶子从茶树上落入水中并在里面停留了一段时间。 10. It was quite delicious, and so, one of the world’s favorite drinks was invented. 它很美味, 于是世界上最受欢迎的饮品之一被发明了。 11. A few thousand years later, Lu Yu, “the sage of tea”, mentioned Shen Nong in his book Cha Jing. 数千年后, “茶圣”陆羽在他的《茶经》一书中提到了神农。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 52 12. The book describes how tea plants were grown and used to make tea. 这本书描述了如何种植茶树和泡茶。 13. It also discusses where the finest tea leaves were produced and what kinds of water were used. 它还讨论了什么地方出产最好的茶叶, 以及使用什么样的水泡茶。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 53 14. It is believed that tea was brought to Korea and Japan during the 6th and 7th centuries. 人们认为茶在6世纪到7世纪期间被带到了朝鲜和日本。 15. In England, tea didn’t appear until around 1660, but in less than 100 years, it had become the national drink. 在英国, 直到1660年左右茶才出现, 但是在不到100年的时间里, 它成了全国性的饮品。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 54 16. The tea trade from China to Western countries took place in the 19th century. 从中国到西方国家的茶叶贸易出现在19世纪。 17. This helped to spread the popularity of tea and the tea plant to more places around the world. 这帮助了茶和茶树传播到世界上更多的地方。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 55 18. Even though many people now know about tea culture, the Chinese are without doubt the ones who best understand the nature of tea. 尽管现在很多人了解茶文化, 但是毫无疑问中国人才是最懂茶的本质的人。 19. Tea is now traded between many different countries. 现在, 茶在许多不同的国家之间被交易。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 56 20. Bell invented the telephone in 1876. 贝尔在1876年发明了电话。(主动语态) The telephone was invented (by Bell) in 1876. 电话是在1876年被(贝尔)发明的。(被动语态) 21. They sold the fridge at a low prize. 他们以低价出售了冰箱。(主动语态) The fridge was sold at a low prize. 冰箱被以低价出售了。(被动语态) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 57 22. Where did you take the photos of these wolves? 你在哪里给这些狼拍的照片? (主动语态) Where were the photos of these wolves taken by you? 这些狼的照片是在哪里被你拍的? (被动语态) 23. The guide warned them not to climb the mountain in bad weather. 导游警告他们不要在坏天气(的时候)爬山。(主动语态) They were warned by the guide not to climb the mountain in bad weather. 他们被导游警告不要在坏天气(的时候)爬山。(被动语态) 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 58 24. Different writers translated the book into different languages. 不同的作家把这本书翻译成了不同的语言。(主动语态) The book was translated into different languages by different writers. 这本书被不同的作家翻译成了不同的语言。(被动语态) 25. The earthquake happened all of a sudden, but luckily the villagers were brought to a safe place. 地震突然发生了, 但是幸运的是村民们被带到了一个安全的地方。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 59 26. The cookies were eaten by the hungry kids in less than 20 minutes, and they really liked them. 曲奇饼被饥饿的孩子们在不到20分钟的时间里吃了, 他们的确喜欢它们。 27. In 1875, Mr. Bell learned how to send musical notes through an instrument similar to a telephone. 1875年, 贝尔先生学会用一种类似电话的器械发送音符。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 60 28. Today the telephone is used around the world. 今天电话在全世界被使用。 29. The customer said they were not salty enough. 顾客说它们不够咸。 30. Did you know potato chips were invented by mistake? 你知道炸薯片是无意中被发明的吗? 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 61 P46 2b (31~40) 31. Basketball is a much-loved and active sport that is enjoyed by many for fun and exercise. 篮球运动是一项备受喜爱而且充满活力的运动, 许多人为了娱乐和锻炼而喜欢它。 32. It is over 100 years old and is played by millions of people all over the world. 篮球运动有100多年的历史了, 全世界有数百万人打篮球。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 62 33. When he was a college teacher, he was asked to think of a game that could be played in the winter. 当他是大学老师时, 他被要求想出一种可以在冬天玩的游戏。 34. Players on the same team must work together to get the ball in the other team’s basket. 同一支队伍里的球员必须一起努力把球投到另一支队伍的篮框里。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 63 35. At the same time, they need to stop the competing team from getting the ball into their own basket. 同时, 他们需要阻止对方把球投到他们自己的篮框里。 36. Today, the popularity of basketball has risen around the world, with many young people dreaming of becoming famous players. 如今, 许多年轻人都梦想成为著名的篮球运动员, 篮球在世界各地也越来越普及。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 64 37. Basketball has not only become a popular sport to play, but it has also become a popular sport to watch. 篮球运动不仅已经成为一项大众爱玩的运动, 而且也已经成为一项受欢迎的观赏运动。 38. The number of foreign players, including Chinese players, in the NBA has increased. NBA中的外国球员数量有所增加, 其中也包括中国球员。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 65 39. Many young people look up to these basketball heroes and want to become like them. 许多年轻人钦佩这些篮球英雄, 并且想成为像他们一样的人。 40. These stars encourage young people to work hard to achieve their dreams. 这些明星激励着年轻人为实现他们的梦想而努力。 41. It is often difficult to decide on the inventor of certain inventions. 经常很难确定某些发明的发明者。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 66 42. It’s hard to tell who came up with the idea first. 很难辨别是谁先想出的这个主意。 43. Some inventions can also lead to other inventions all of a sudden. 一些发明也会突然引发其他的发明。 44. That is why books or websites usually mention more than one inventor when giving information about inventions. 那就是一些书籍或者网站通常在给出关于发明的信息时会提及不止一位发明者的原因。 教材词汇 教材短语 题序 重点单词变化及拓展 单元重点句型 67 $$