1、九年级unit9学案课题：Unit 9 When was it invented？第 1 课时 Section A （P681a-1c）学习目标：运用被动语态谈论一些发明物的历史。学习重点： 一般过去式的被动语态：was/温热+动词的过去分词+ (by)学习难点： 被动语态的运用。学习方法： 自主学习完成1a，1b, 互助合作完成1c.教学过程：一课前预习 （一）年代的英文表达你还记得吗？请翻译下列年代：1 nineteen seventy-one_2 eighteen eighty-five_3. eighteen seventy-six _4.1927_ 5.1976_ 6. 2010_（
2、二）英汉互译。1.我认为计算器先于电脑发明。_ 2. I think the calculator was invented after the computer. _3. 我认为电话先于汽车发明。_4. -电话是什么时候发明的？ _-我想是在1876年发明的_(三) 预习143页关于被动语态的语法内容。二. 课内探究 （一）. 课前导入：预习检测 (二) 自主探究1.自主完成1a，组内交流，陈述句子。2 听录音完成1b 3. 合作交流：熟读1c的对话并仿照进行对话。（三）知识点拨 1. 被动语态 语态是动词的一种形式，用来说明主语与谓语动词之间的关系。英语中的语态共有两种：主动和被动语态。
3、主动语态表示句子的主语是动作的执行者，被动语态表示句子的主语是动作的承受者。 动动脑： 1 The classroom is cleaned every day. 2. The bridge was built last year. 3. The trees can be planted in spring. 上面的三个句子我们知道被动语态的基本结构是_. 第一个例句我们可以推测出一般现在时的被动语态的结构为_.从第二个例句我们可以推测出一般过去时的被动语态的结构为_.从第三个例句我们可以推测出含情态动词的被动语态的结构为_.如何理解被动语态？为了更清晰、更深刻地理解被动语态的含义，可以将主动
4、语态和被动语态的句子结构进行比较。主动语态： 主语+ 谓语动词 +宾语 + 其他成分 被动语态： 主语 + be +过去分词 + by +宾语 +其他成分如：主动语态 Many people speak English.被动语态 English is spoken by many people.练一练： 1 The flowers _(water) twice a week. 2. The snakes _(kill) by him last week. 3. The room must _(keep)clean.主动语态变被动语态的方法1. 基本方法将主动语态的宾语变为被动语态的主语，将主动
5、谓语变为被动谓语(be+过去分词)，将主动语态的主语变为by短语(在被动句中用作状语)：He stole our money.Our money was stolen by him.【注】(1)若不强调动词执行者，被动语态中的by短语通常可以省略：The house was built in 1978. 这座房子是1978年建的。(2) 在转变语态时，要注意保持两种语态时态的一致性：The students will study the problem.The problem will be studied by the students.A friend of ours is repairi
6、ng the roof.The roof is being repaired by a friend of ours.2. 双宾动词的被动语态双宾动词即指带双宾语的动词，它们在变为被动语态时，有以下两种情形值得注意：(1) 有些双宾动词(如award, buy, give, leave, lend, offer, pay, show, teach, tell等)在变为被动语态时，既可把间接宾语(指人)变为被动语态的主语，而把直接宾语(指事物)保留下来(称为保留宾语)，也可把直接宾语(指事物)变为被动语态的主语，而把间接宾语改为介词to 或for引起的状语(到底用to还是for，与所搭配的动词有
7、关)。比较：He gave her some money. 他给她一些钱。 She was given some money. / Some money was given to him.He bought her a watch. 他给她买了一快表。 A watch was bought for her. / She was bought a watch. (2) 有些双宾动词(如bring, do, make, pass, sell, send, sing, write等)通常用直接宾语(指事物)作被动语态的主语，而将间接宾语用作保留宾语(其前根据情况用介词to或for)：Father m
8、ade me a doll. A doll was made for me. He wrote her a letter. A letter was written to her. (3) 有些双宾动词(如answer, deny, envy, refuse, save, spare等)通常用间接宾语(指人)作被动语态的主语，而将直接宾语用作保留宾语：He answered me that question. I was answered that question by him.3. 含有情态动词的被动形式若主动语态中谓语含有情态动词，在相应的被动语态中通常应保留该情态动词，其结构为“情态动
9、词+be(或be的适当时态形式)+过去分词”：Everyone must know this. This must be known by everyone.请看以下带情态动词被动句实例：This cant be done in a short time. 这不是短期内可以完成的。She may have been sent to work elsewhere. 她可能被派到别处工作去了。The door must have been locked by my wife. 门一定是我妻子锁的。The environment should be improved. 环境应当改善。The seco
10、nd point neednt be discussed today. 第二点今天不必讨论。8种常用时态的被动语态 由“助动词be + 动词的过去分词”构成。助动词be 有时态、人称和数的变化。(1) 一般现在时：am/is/are +过去分词。如：Rice is grown in south China. 华南种植水稻。(2) 一般过去时：was/were+过去分词。如：The glass was broken yesterday. 这块玻璃是昨天打烂的。(3) 现在进行时：am/is/are being +过去分词。如：The project is being carried out. 这
11、个计划正在执行中。(4) 过去进行时：was/were/being +过去分词。如：This road was being built this time last year. 这条路去年这个时候还在修建。(5) 一般将来时：will be +过去分词。如：The cars will be sent abroad by sea. 这些汽车将由水路运往国外。(6) 过去将来时：would be +过去分词。如：The manager said the project would be completed by the end of the year. 经理说这个工程在年底前将会完成。(7) 现在
12、完成时：have/has been +过去分词。如：This novel has been translated into several languages. 这本小说已被译成了几种语言。(8) 过去完在时：had been +过去分词。如：When I got to the theatre, I found the tickets had already been sold out. 我到达剧院时，发现票已卖完了。使用被动语态“六注意”一要注意被动语态的不同时态被动语态由“be+过去分词”，其中的助动词 be 根据情况可使用各种不同时态。如：She is respected by ever
13、yone. 她受到大家的尊重。(一般现在时)The book will be reprinted soon. 这本书很快会重印。(一般将来时)The road is being repaired. 路正在修整。(现在进行时)They have been given a warning. 他们受到警告。(现在完成时)二要注意带情态动词的被动语态该结构的基本形式为“情态动词+be(或be的适当形式)+过去分词”。这类结构非常有可能作为语境题出现在考卷中。如：The rules must be obeyed. 这些规章制度必须遵守。They shouldnt have been told about
14、 it. 这事是不应当告诉他们的。主动语态与被动语态相互转换，每空一词（含缩写）。1. We call maths the language of science. （改为被动句）Maths _ _ the language of science.2. Where did they plant trees? （改为被动句）Where _ trees _?3. You can borrow two books at a time.（改为被动句）Two books _ _ _ at a time.4.The teacher made the students copy the text.改为被动句
15、The students _ _ _ copy the text.5. They produce silk in Suzhou.（改为被动句）Silk _ _ in Suzhou.6. They built a bridge between the two islands last year.（改为被动句）A bridge _ _ between the two islands last year.7. A birthday party will be given tomorrow. （改为主动句）We _ _ a birthday party tomorrow.8. John was see
16、n to cross the street just now by someone.（改为主动句）Someone _ John _ the street just now.9. Can another way be thought of to keep your wine or water warm?（改为主动句）Can _ _ _ another way to keep your wine or water warm?10. Too many trees are still being cut down in the USA. （改为主动句）_ are still _ down too ma
17、ny trees in the USA.答案：1. is called 2. were,planted 3. can be borrowed 4. were made to5. is produced 6. was built 7. will give 8. saw,cross 9. you think of10. People/They,cutting三课后提升 一) 翻译A: 电视是什么时候发明的？_B: 它是1927年发明的。_二) 用所给词的适当形式填空1. I _(clean) my room every day. My room _(clean) every day.2.Lucy_
18、(wash)her clothes just now.Her clothes_(wash) just now.3.I can _(repair) your bike in two hours. Your bike can_(repair)in two hours四课后反思课题：Unit 9 When was it invented？第二课时（P69 Section A 2a-2c）学习目标：1. 掌握本课的单词 2. 继续学习被动语态的用法。 3. 通过听说练习，提高学生的听，说能力。4. 熟读并背诵Grammar Focus.重难点： 通过听说练习进一步学习被动语态 学习方法： 自主预习听力
19、材料及Grammar Focus，互助合作完成2c.教学过程：一课前预习： 一）翻译 1.scoop_2 adjustable_3. battery_4. 加热_5.操作_ 6. 用来做_ 7.shoes with adjustable heels_ 8.scoop cold ice cream_9.change the style of the shoes_10.汽车是什么时候发明的?_ 1885年发明的_11.他们是谁发明的？_ 是Julie Thompson发明的_ 12.他们是用来做什么的？_ 是用来在黑暗中照明的_二. 课内探究 （一）预习检测: (二) 复习导入： T： When
20、was the car / telephone/ TV/ computer/ calculator invented?(三)自主探究1. 听录音，完成2a,2b的内容2. 合作交流：（1）朗读对话并模仿例句完成2c的对话。 (2) 朗读并背诵Grammar Focus。（四）知识点拨They are used for seeing in the dark. be used for doing sth. “被用来做-“ 相当于be used to do sth. Stones can be used for building houses.= Stones can be used to buil
21、d houses. 拓展： 1. be used to doing sth. 习惯于做某 Im used to getting up early. 2. be used as 被用作- This word can be used as a noun. 3. be used by 被- 使用 This kind of machine is used by farmers for getting in crops(收割庄稼) 做一做：1. 刀被用来切东西。 Knives are used _ _things. = Knives are used _ _things. 2. 英语在中国被用作第二语言
22、。 English is used _the second language in China. 3.这本书的作者是韩寒。 The book is_ _Hanhan.三课后提升(一) 句型转换 1. The telephone was invented by Bell.（划线提问）_ _the telephone _by? 2. The watch was made in Japan. （变否定句） The watch _ _ _Japan. 3. We saw a bird in the tree. (变被动语态) A bird _ _in the tree. 4. Paper is use
23、d for writing. （划线提问） _ _paper _ for? 5. Many things were invented by Edison. (变为主动语态) Edison _ _ _.(二) 单项选择1）Pens are used _ writing. A. as B. for C. to 2) The PRC_ on October 1,1949. A. was found B. is founded C. was founded3) They _a lot of toys in the past. A. invent B. invented C. were invented
24、4) He _to swim in the West Lake yesterday. A. saw B. was seen C. was seeing四课后反思课题：Unit 9 When was it invented？第三课时（P70 Section A 3a -4）学习目标：1. 根据音标学会拼读本节课的生词。 2. 运用What do you think is the most helpful invention? Why is that? 目标语言来谈论发明重难点：运用目标语言来训练学生的说，写能力。学习方法：互助合作完3a ，3b及part4。教学过程：一课前预习: （一）英汉语互
25、译1.alarm clock_ 2.light bulb_3.microware_4. 有用的发明_ 5. 恼人的发明_6. 整天听音乐_ 7. 我认为有一条船会更好_8. 它每天给人们更多时间去工作，去玩_二 课内探究1.复习导入： 复习Grammar Focus. T： What would you like to have if you are alone on a tiny island? 2.自主探究：1) 自主完成2a，写下五种有用的，烦人的发明。2）熟读例句，合作完成3B及part4.3. 知识点拨： Its better to do sth. “做某事更好些”Its bette
26、r to get up early in the morning. Its better to eat more vegetables.三.课后提升： （一）单项选择1 Sixteen-year-olds should_ work at night. A allow to B allowed to C be allowed to2 They _ seeing in the dark. A used for B used to C are used for3 Shoes_ adjustable heels can change the style. A and B with C for4 When _ the car_? A did, invent B was, invented C does, invent5 The light bulb is used for _ the dark. A in B at C during6 The flowers shou
