Unit 3 Great ideas 第5课时Grammar in use课件2026-2027学年仁爱科普版英语九年级上册

Unit 3 Great Ideas Unit 3 Great Ideas Unit 3 Great Ideas Grammar in Use master the suffix -en word formation rules; master simple present & past passive structures; use grammar to talk about inventions. Learning Objectives Activity 1 Look at the picture and answer the questions. Then read the sentences. Pay attention to the words in bold. In the old days, stone was difficult to transport, so many wooden houses were built. What’s this model building made of ? Why not use stone to build houses? Stone was difficult to transport. wood (n.) + en wooden (adj.) It is made of wood. /ˈwʊdn/adj. 木制的；木头的 Activity 1 Look at the picture and answer the questions. Then read the sentences. Pay attention to the words in bold. Television can enrich people’s lives and broaden their minds. It was one of the greatest inventions in the 20th century. What can TV bring to people’s lives? When was television invented? In the 20th century. It can enrich their lives and broaden their minds. broad (adj.) + en broaden (v.) /ˈbrɔːdn/ v. 增长；变宽；变阔 Activity 1 Look at the picture and answer the questions. Then read the sentences. Pay attention to the words in bold. Around 2000 BCE, woolen clothing appeared in China. What is the clothing made of? When did such clothing appear in China? Around 2000 BCE. It is made of wool. wool (n.) + en woolen (adj.) /ˈwʊlən/ adj. 羊毛的；毛线的 The suffix- en 用法 1：名词 + -en → 形容词 含义：由…… 制成的 例1：wood (n. 木头) + -en → wooden (adj.) 木制的 短语：wooden houses 木屋 例2： wool (n. 羊毛) + -en → woolen (adj.) 羊毛制的 短语：woolen clothing 毛织服装 拓展：gold (n. 黄金) + -en → golden 金色的；金质的 这种构词方式的单词数量很少，都是固定单词！ The suffix- en 用法 2：形容词 + -en → 动词 含义：使…… 变得…… 公式：make + 原形容词 例：broad (adj. 宽阔的) + -en → broaden (v.) 拓宽；开阔 短语：broaden their minds 开阔眼界 拓展： short (adj. 短的) + -en → shorten (v.) 缩短= make … short wide (adj. 宽的) + -en → widen (v.) 拓宽= make … wide dark (adj. 黑暗的) + -en → darken (v.) （使）变暗= make … dark The suffix- en 名词后面加 - en，变成形容词，多指 “某种材料制成”； 形容词后加 - en，变动词，意思就是 “使变得……”。 修饰名词，放在名词前 → 用 wooden / woolen（形容词） 2.放在情态动词 (could)、need to、begin to 后面 → 使用 broaden/shorten/widen/darken（动词原形） 快速区分口诀 Tips-词性判断 Activity 2 Make new words with the suffix -en and fill in the blanks with their correct forms. + wood short wide dark en 1. At first, Chinese people used ________boards to print books. 2. The invention of movable type printing greatly improved printing quality and _________ printing time as well. 3. If you want to invent something, you need to _______ your knowledge. 4. When the sky began to ________, sailors had to depend on stars to find the right direction. wooden shortened widen darken Activity 3 Read the sentences and replace the parts in bold with proper words. I like this invention. In the past, pencils were sharpened by hand, but now pencils can be made sharp by using a small tool. Pencils can be ___________ by using a small tool. I like the invention of the light bulb. It makes the world around us bright at night. The light bulb is an important invention. It ____________ the world around us at night. sharpened brightens sharp /ʃɑːp/ adj. 锋利的 sharp + en = sharpen (v.) bright /braɪt/ adj. 明亮的 bright + en = brighten (v.) Activity 1 Pair work. Read the conversation. Pay attention to the passive voice of verbs. Hi, Kangkang. Why do you look so tired? I was woken up by my mom too early this morning. You stayed up late last night, right? Yes, I did. I made a model rocket last night. It was made for the model rocket show this Sunday. wake up 醒来 Activity 1 Read the key sentences and analyze the passive voice of verbs. I was woken up by my mom too early this morning. My mom woke me up too early this morning. 今天一大早我就被妈妈叫醒了。 妈妈今天一大早就叫醒了我。 强调 “某人 / 某物 被……” 强调 “某人 / 某物 做……” 被动语态 主动语态 Activity 1 Read the key sentences and analyze the passive voice of verbs. It was made for the model rocket show this Sunday. I made it for the model rocket show this Sunday. 它是为这周日的模型火箭展制作的。 我为本周日的模型火箭展制作了它。 被动语态 主动语态 Passive voice 定义： 英语语态分为两种：active voice（主动语态） 和 passive voice（被动语态） 主动语态：句子主语是动作的发出者 例：I make the model rocket. 我制作这个火箭模型。 （I 发出 make 这个动作） 被动语态：句子主语是动作的承受者，侧重描述 “某人 / 某物被…” 例：The model rocket is made. 这个火箭模型被制作出来。 （火箭承受 make 这个动作） Passive voice 两种时态的被动语态结构 Tense Simple present Simple past Active verb form do/does did Passive structure ____ /____/____ + 动词过去分词 (done) ____ /______ + 动词过去分词 (done) Time signs every day, always often, usually, ... in + 过去年份， ... ago, last ..., yesterday, ... am is are was were Passive voice 被动语态的注意事项 1. be 动词单复数匹配： (1) 单数主语 / 不可数名词 → be 动词用 _________ /______ (2) 复数主语 → be 动词用 _____ /_______ 2. 动词变化：被动语态中，实义动词必须变为 _________（原形 / 过去分词） 3. 特殊提醒：appear, happen, take place 等不及物动词 ____（有 / 无）被动语态 例如：The accident happened last night. （ ） The accident was happened last night. （ ） am / is was are were 过去分词 无 ✔ ✘ Passive voice Exercise 译文：护照在失物招领处被找到。 Many art works ________________ by young people today. The passport___________________ in the Lost and Found. 译文：如今许多艺术作品由年轻人创作。 is discovered are created （主语单数，一般现在被动） （主语复数） The airplane __________________ by the Wright brothers in 1903. 译文：飞机是莱特兄弟在 1903 年发明的。 Clear instructions ______________ (prepare) to help the workers use the new machine. 译文：已经准备好清晰的操作说明，帮助工人们使用这台新机器。 was invented were prepared （主语复数） （主语单数，过去被动） /ˈpæspɔːrt/ n. 护照 ／ɪnˈstrʌkʃn/ n. 用法说明；操作指南 Activity 2 Complete the table and learn how to use the passive voice. do Simple Present Passive Simple Past Passive Active Active Passive Passive am/is/are done did was/were done 1. The passport ____________ (discover) in the Lost and Found. 2. Many art works ___________ (create) by young people today. is discovered are created 1. The airplane _____________ (invent) by the Wright brothers in 1903. 2. Clear instructions ______________ (prepare) to help the workers use the new machine. was invented were prepared Activity 3 Complete the text with the correct form of the given words. Post-it Notes ______________ (develop) by Dr. Spencer Silver and Art Fry. In 1968, Spencer invented a special type of glue by accident. This glue could allow things to stick lightly and to be pulled off easily. However, he did not know how to put it to use. In 1974, Art Fry found that the glue could __________ (use) to keep the notes from falling and then created Post-it Notes. In 1977, Post-it Notes first appeared at the market and they became a great success in Boise, Idaho. Now, Post-it Notes __________ (sell) all over the world. were developed be used are sold Exercise 一、用括号内单词的正确形式填空，完成下列句子。 We use ________ (wood) boards to print ancient books. The new printing method can greatly ________ (short) the printing time. Reading widely helps ________ (wide) your knowledge. When the sky began ________ (dark), sailors watched stars for directions. The small tool can ________ (sharp) pencils easily. The light bulb can ________ (bright) the world at night. wooden shorten widen to darken sharpen brighten Exercise 二、从 A、B、C 三个选项中，选出可以填入空白处的最佳答案。 ( ) 1. The model rocket ________ for the show last Sunday. A. makes B. was made C. is made ( ) 2. Many art works ________ by young people every year. A. are created B. created C. were created ( ) 3. The airplane ________ by the Wright brothers in 1903. A. invents B. is invented C. was invented ( ) 4. Potato chips ________ by George Crum in 1853. A. were invented B. are invented C. invented B A C A Exercise 三、从方框内选择合适的单词 / 短语，并用正确形式补全短文。 Post-it notes 1. ____________ in 1968 by Dr. Spencer Silver. At first, no practical use 2. ____________ for them. In 1974, the notes 3. ____________ to hold pages. In 1977, post-it notes first 4. ____________ on the market. Today, post-it notes 5. ____________ by people around the world. were invented was found were used appeared are used invent use find appear make 抄写本课所有 - en 后缀词汇，背诵 en 构词两类规则。 完成 5 道主动语态变被动语态句子改写练习。 Homework $