2019秋九年级英语全册Unit6WhenwasitinventedSectionA3（GrammarFocus_4c）教案（新版）人教新目标版.docx

Unit 6 When was it invented?Section A 3 (Grammar Focus-4c)一、教学目标：1. 语言知识目标：1) 学习掌握下列词汇：fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument 2）进行一步复习巩固学习Section A 部分所学的生词和词组。3）进一步学习运用一般过去时态的被动语态。4) 掌握主动语态变被动语态的方法，并通过不同方式的练习，来熟练运用。2. 情感态度价值观目标：培养想象力，善于观察事物。面对难题，用积极的态度去解决，发挥想象力，认识世界，改造世界。二、教学重难点 1. 教学重点：1) 学习生词fridge, low, somebody, translate, lock, earthquake, sudden, all of a sudden, biscuit, cookie, instrument2) 复习巩固Section A 部分所学的生词和词组，达到熟练运用的目标。2. 教学难点： 1) 一般过去时态的句子变为被动语态。2) 综合运用所学的知识进行练习运用。三、教学过程. Warming up and revision 1. Have a dictation of the new words learned in the last class. 2. Review some main phrases we learned in the last class. Check the homework. 3. Let some Ss tell something about how tea was invented by accident.Tell something about how tea was invented by accident.One day Shen Nong was boiling drinking water over an open fire. Some leaves from a tea plant fell into the water and remained there for some time. It produced a nice smell so he tasted the brown water. It was quite delicious and one of the worlds favorite drink was invented.Tell something about Lu Yu and his Cha Jing.Lu Yu “the saint of tea” mentioned Shen Nong in his book Cha Jing. The book describes how tea plants were grown and used to make tea. It also discusses where the finest tea leaves were produced and what kinds of water were used. It is believed that tea was brought to Korea and Japan during 6th and 7th centuries. In England, tea didnt appear until around 1660. The tea trade from China to Western countries took place in the 19th century. Grammar Focus. 1. 学生阅读Grammar Focus中的句子，然后做填空练习。拉链是什么时候被发明的？ _ _ the zipper _? 它于1893年被发明。 It _ _ in 1893. 它是由谁发明的？ _ _ it invented _? 它是由惠特科姆贾得森发明的。 It _ _ _ Whitcomb Judson. 茶叶什么时候被带到朝鲜去的？ _ _tea _ to Korea? 茶叶在六到七世纪之间被带到朝鲜。 It _ _ to Korea _the 6th and 7th centuries. 热冰淇淋勺用来做什么？ What _ the hot ice-cream _ _? 它用于挖很冷的冰淇淋。 Its _ _ _ really cold ice-cream. 电话机在1876年被贝尔所发明。 The telephone _ _ _ Alexander Graham Bell in 1876. 贝尔于1876年发明了电话机。 Alexander Graham Bell _ the telephone in 1876. 2. 学生们根据记忆，看大屏幕来完成填空练习。3. 学生们完成填空试题后，可以打开课本检查答案，对错误的句子，单独进行强化记忆。. Grammar一般现在时的被动语态中讲到的“被动语态的用法”和“如何将主动语态(含“主+谓+宾”句型的句子)变为被动语态”同样适用于一般过去时的被动语态，不同的是这两种时态的被动语态的构成，重点讲解一般过去时的被动语态的构成(was / were +及物动词的过去分词)及在各种句式中的运用。一般过去时的被动语态的构成为：was / were+及物动词的过去分词。e.g. The bridge was built last year. The bridge wasnt built last year. Was the bridge built last year? Yes, it was. / No, it wasnt. When was the bridge built?【拓展】1.“不及物动词+介词/副词”构成的短语动词，变成被动句时，要把它们作为整体看待，介词或副词不可拆开或漏掉。e.g. My grandma was looked after by a nurse called Lisa. These posters were put up by our head teacher.2.含有双宾语的主动句变被动句时，可将主动句中的直接宾语或间接宾语变为被动句中的主语。如果把主动句中的直接宾语(指物)变为被动句中的主语，则需在间接宾语(指人)前加适当的介词to或for。e.g. 主动结构：Mom bought me a new coat. 被动结构：I was bought a new coat. (间接宾语作主语) A new coat was bought for me. (直接宾语作主语)3.有些动词常用其主动形式表示被动意义，如sell, wash, write等和表示感觉、知觉的系动词feel, sound, taste, smell等。e.g. This kind of pen writes well. The sweater feels very comfortable.4.在主动句中，使役动词(如make等)和感官动词(如see, watch, notice, hear等)后面常接不带to的动词不定式作宾语补足语；但在被动句中，这些词后面的动词不定式都需要带to。e.g. Tom was made to answer the questions in class by the teacher. Tim was seen to run in the playground last weekend. ExercisesI. 根据各题后括号内的要求完成下列各题，每空一词（含缩略形式）。1. My mother cleaned the room this morning. (改为被动语态) The room _ _ by my mother this morning.2. Was the model plane made by your brother? (补全肯定答语) _, it _.3. The bag was stolen last week.(改为否定句) The bag _ _ last week.4. The criminal was caught yesterday. (对划线部分提问) _ _ the criminal _?II. 将下列句子改为被动语态，每空一词。1. We put off the meeting. The meeting _ _ _ by us.2. Mother made me a new skirt. A new skirt _ _ _ me by Mother.3. They asked me to help them. I _ _ _ _ _.Answers: I. 1. was cleaned 2. Yes; was 3. wasnt stolen 4. When was; caught II. 1. was put off 2. was made for 3. was asked to help them. PracticeWork on 4a: 1. Tell Ss to read the sentences in 4a and rewrite the sentences using the passive voice. 2. 做题方法点拨示例： 点拨：原句为一般过去时态，原句的谓语动词为sold，宾语为the fridge；改为被动语态时，应将the fridge作主语，谓语动词用was sold的形式。 They sold the fridge at a low price. The fridge was sold at a low price. 点拨：分析原句的句子结构可知，stole是谓语动词，my camera是句子的宾语；改为被动语态句时，应将my camera作句子主语，谓语动词用was stolen的形式。Somebody stole my camera from my hotel room. My camera was stolen from my hotel room. 学生们自主将其他三个句子变成被动语态。 3. 最后，教师与同学们一起校对答案，并对学生们有疑问的地方进行解释，或做出合理的分析点拨。Where were these photos taken? We were advised not to go out alone. The book was translated into different languages by different writers. Work on 4b: Complete the sentences with correct forms of the verbs in the box. 1. 让学生们阅读方框中的词汇，了解词汇及句子的意思，为进行填词做好准备。eat, like, invite, tell, lock, ring, break, bring2. 认真阅读每个句子，根据上下文确定空格处应填的意思。3. 逐句进行分析推敲，然后分析句子的时态及语态，用适当的形式填空。1) You _ to the party last night, werent you? Why didnt you go? 2) The earthquake happened all of a sudden, but luckily the villagers _ to a safe place. 3) The door _ when we arrived, so we _ the bell. 4) The students _ not to eat or drink in class, but Ruby _ the rule when she started eating a biscuit in science class. 5) The cookies _ by the hungry kids in less than 20 minutes, and they really _ them. 4. 最后，通读一遍所有句子，进行综合理解，看句子的意思是否通顺，合理。5. Check the answers with the Ss. 1. were invited 2. were brought 3. was locked, rang (前一句中，门是被锁的，故应用被动语态；后一句中，我们去按门铃，是主动语态。) 4. were told, broke (前一句中，学生们是被告诉不要做这些事情，故应用被动语态；后一句中，Ruby违反规则，则是主动语态。) 5. were eaten, liked (前一句中，饼干是被孩子们吃掉了，故应用被动语态；后一句中，孩子们喜欢这些饼干，则是主动语态。) . Practice Work on 4c: Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks. 1. 先通读小短文，了解大意。The telephone _ (invent) by Alexander Graham Bell. He _ (born) in 1847. Mr. Bell _ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone _ (invent) in 1876. The first sentence that _ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone _ (use) around the world. 2. 逐句分析每一句话的意思，确定句子主语和谓语动词之间主动或被动关系。3. 结合句子的时态，填上正确的形式。4. 复读短文，看是否通顺。5. Check the answers. Exercise单项选择。1. Tell me one thing youre proud of in your junior high school, Tony.I _ as captain of the school football team.A. choose B. chose C. am chosen D. was chosen2. Last March, many trees _ along the streets to make our city more beautiful.A. were planted B. were plantingC. had planted D. planted3. The students in this school are made _ school uniforms on Monday.A. to wear B. wearing C. wear D. worn4. Mary was heard _ just now. What happened?Joe was telling her some jokes.A. cry B. laugh C. to laugh D. to