北大绿卡九年级英语全册 Unit 6 When was it invented（第2课时）Section A（3a-4c）教案 （新版）人教新目标版-（新版）人教新目标版初中九年级全册英语教案.doc

When was it invented一、教学目标：知识与技能： 学习掌握下列词汇：by accident, ruler, boil, remain, smell, saint, national, take place, doubt, without doubt 阅读短文，了解茶叶被发明的历史及生产制作的简要过程。过程与方法： 通过阅读提高学生们的阅读能力。通过归掌握一般过去时的被动语态的用法。情感态度价值观： 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、教学重点与难点：掌握本部分出现的生词和词组，达到熟练运用的目标。阅读短文，获得相关的信息。通过阅读练习，来提高阅读能力。一般过去时态的句子变为被动语态。三、教学准备：1、课件多媒体教学过程学生活动设计意图. Revision 1. Check the homework. 2. Role-play the conversation in 2d. . Lead-in 一、提出问题，导入新课What will you do if you are really thirsty?Youd like to drink these drinks.Whats the most traditional drink in China? Who was tea invented by?. Reading Work on 3a: 1. Tell Ss to read the article quickly and match each paragraph with its main idea. Para. 1 Para. 2 Para. 3 Ss read the article quickly and match each paragraph with its main idea. 2. 方法指导：先阅读所给的三句话，然后快速阅读短文，抓住每一段的主题句，找到答案。3. 学生们，按老师指导的方法进行阅读，并快速阅读三个段落。 4. 最后，教师让部分学生回答答案，并校对答案。Para. 1 How tea was invented by accident Para. 2 Lu Yu and his book Cha JingPara. 3 How tea spread to other countriesWork on 3b: 1. 告诉学生们再次阅读短文内容，并回答3b中的所有问题。2. 学生们先阅读这些问题，理解它们的意思，然后带着相关问题仔细回读短文，并在短文的相关信息处划线。3. 让学生们回答问题，并校对答案。 It was first drunk nearly 5, 000 years ago. It was invented by accident. Lu Yu. Its about how tea plants were grown and used to make tea. It is believed tea was brought to Korea and Japan during the 6th and 7th centuries. Tea didnt appear until around 1660 in England. 4. 让学生读一下自己的答案，并改正答案。. Post reading Read and fill the blanks. Fill the blanks according to the first paragraph. Tea (after water), the most popular drink in the world _ (invent) by accident. It is believed that tea _ (drink) 5,000 years ago. It _ (say) that a Chinese ruler _ (call) Shen Nong was the first _ (discover) tea as a drink. One day Shen Nong _ (boil) drinking water over an open fire. Some leaves from a tea plant _ (fall) into the water and remained there for some time. It _ (produce) a nice smell so he _ (taste) the brown water. It was quite delicious, and so, one of the worlds favorite drinks _ (invent).2. Fill the blanks according to the second paragraph. Lu Yu, “the saint of tea”, _ (mention) Shen Nong in his book Cha Jing a few thousand years later. The book describes how tea plants _ and used to make tea. It also discusses where the finest tea leaves _ (produce) and what kinds of water _ (use). 3. Fill in the blanks with the proper forms .People believed that tea _ (bring) to Korea and Japan during the 6th and 7th centuries. In England, tea _ (not appear) until around 1660, but in less than 100 years, it had become the national drink. The tea trade from China to Western countries _ (take) place in the 19th century. Work on 3c. Complete the sentences with the correct forms of the verbs in the box. 1. 告诉学生们本学习活动的要求：用所给单词的适当形式填空。2. 让学生们读3c中的内容，理解每个句子的大体意思。 3. 学生们阅读句子内容，回想短文的内容，选择恰当的单词并用其恰当形式填空。4. 如果不能直接填上，可以再去阅读短文，在相关的内容处，再仔细进行阅读，找到相关信息，并完成句子。5. Check the answers。 ( 1. invented 2. drunk 3. produced 4. brought 5. traded ）. Grammar Focus. 一般过去时态的被动语态的构成 英语有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态则表示主语是动作的承受者。如：We cleaned the classroom yesterday. 我们昨天打扫了教室。(主动语态，主语we是clean这一动作的执行者)The classroom was cleaned yesterday. 教室昨天被打扫。(被动语态，主语the classroom是clean这一动作的承受者)一、一般过去时被动语态一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词 (+by+动作的执行者).”。如： Trees were planted last spring.去年春天种了树。1. 肯定句： 主语 + was/were +及物动词的过去分词 + 其他. Paper was invented by Chinese people two thousand years ago. 纸是中国人在二千多年前发明的。 2. 否定句： 主语 + was/were not +及物动词的过去分词 + 其他. Women were not allowed to take part in the games at first. 开始妇女不允许参加奥运会。 3. 一般疑问句： Was/Were +主语 +及物动词的过去分词 + 其他? Were these pictures drawn by your sister? 这些图片是由你妹妹画的吗？ 4a Re write the sentences using the passive voice. 4b. Complete the sentences with the correct forms of the verbs in the box. 4c. Write the correct forms in the blanks.HomeworkReview what we have learned today.检查作业看图讨论学生快速阅读学生再读读后练习学生练习学生读学生合作归纳学生练习复习检查作业阅读前准备引导养成良好阅读习惯。细读获得细节信息通过此活动，让学生对本课内容进一步掌握。练习被动语态巩固知识培养学生合作学习的习惯。提高学生归纳总结能力巩固被动语态灵活运用动词的形式板书设计Unit 5 When was it invented?第二课时Section A (3a-4c)一、Passive voiceSubject+was/were+done+othersSubject+ was/were +not+done+othersWas/Were +Subject+ done+others?二、 many people believe that Its believed that not . untile