英语人教版八年级下册第2课时 Section A 3a-4c .doc

第2课时 Section A 3a-4c 教学目标一、知识与技能1. 掌握重点词汇和短语：unbelievable，progress，rapid，unusual，toilet，encourage， social，peaceful，performance，perfect，itself，collect.2. Learn to use the present perfect tense. 3. To train students reading ability4. To get students know some knowledge about many kinds of museums.二、过程与方法1. Explanation method.2. Reading for comprehension.3. Exercise methods.三、情感态度与价值观To raise students interest of learning English.教学重点1. 掌握重点词汇和短语：unbelievable，progress，rapid，unusual，toilet，encourage， social，peaceful，performance，perfect，itself，collect.2. Learn to use the present perfect tense. 3. To train students reading ability.4. To get students know some knowledge about many kinds of museums.教学难点To understand and use the present perfect tense.教法导航创设情景，为学生营造一个尽量真实的语言环境，鼓励他们多阅读，多思考。学法导航多看，多听，多思考，多说，多实践，小组多沟通，交流，合作。教学准备图片，多媒体。教学过程Step 1 Greetings and RevisionLook at the pictures and make conversation：A：Have you ever been to?B：Yes，I have./ No，I havent. Step 2 Pre-reading Brainstorm：think of the kinds of museums that you can name. Watch a video. About the International Museum of Toilets. Talk about the video.Step 3 Fast readingMatch the words with their meaning and learn some new words.True or False.( ) 1. American Computer Museum only has information about different computers there.( ) 2. Ken thinks computers will do more work in the future.( ) 3. International Museum of Toilets is a very unusual museum. ( ) 4. India has the most advanced toilet.( ) 5. Linlin didnt know why her grandpa loved drinking and collecting tea set.Step 4 Detailed readingRead the passage again and answer the questions：1. Which three museums do the students talk about?2. What does Ken say about the American Computer Museum?3. What can we learn at the International Museum of Toilets?4. Why is the Hangzhou National Tea Museum a nice place to enjoy tea?5. What do you think is the most interesting thing about each museum?Students read the passage and try to answer the questions.Check the answers.Step 5 ExplanationRead the passage again and underline the difficult points.1. The old computers were much bigger. much可修饰形容词比较级，表示得多。如：much richer，a little，even，a bit也可以修饰形容词比较级。 2. I wonder how much more computer will be able to do in the future.不知道将来电脑还能够做些什么事情呢。wonder 表示“(对某事)感到疑惑;想要知道;想弄明白;琢磨”，后面常接由what，how，who 或者if/whether引导的宾语从句。e.g. wonder how theyre getting on. 我想知道他们现在过得怎样。 I just wonder if theyve arrived safely. 我就想知道他们是否安全抵达了。3. It also encourages governments and social groups to think about ways toencourage sb. to do sth. 鼓励某人做某事。e.g. My father encouraged me to take part in the sports meeting.父亲鼓励我参加运动会。Step 6 Grammar FocusAsk students to read the sentences of Grammar focus aloud.Then let them learn the Present Perfect Tense(和学生一起总结出现在完成时的用法)1. 用法 肯定式否定式I/You/We/They have finished the work.He/She/It has finished the work.I/You/We/They have not finished the work.He/She/It has not finished the work. 疑问式回答Have I/you finished the work?Has he/she finished the work?Yes，you/I have. No，you/I havent.Yes，he/she has. No，he/she hasnt.2. 构成：have(助动词) + p.phas(第三人称单数助动词) + p.p have not 常缩略为havent；has not 常缩略为hasnt。3. have been to & have gone to区别比较：He has been to Beijing. 他曾去过北京。（人已回来，可能在这儿）He has gone to Beijing. 他已经去北京了。（人已走，不在这儿了）。have / has been (to) 表示“曾经到过某地”，说话时此人不在那里，已经回来。侧重指经历。have / has gone (to) 表示某人“已经去某地了”，说话时此人可能在路上或已到那里，不在这里。 4. 一般过去时与现在完成时的区别比较：I have seen the film. 我看过这部电影。（我了解这部电影的内容）I saw the film last month. 我上个月看了这部电影。(只说明上个月看了这部电影，不涉及现在情况） 一般过去时只强调过去的动作；现在完成时强调过去的事情对现在的影响。 一般过去时通常与表示过去的时间状语连用；现在完成时则不能与表示过去的时间状语连用。 一般过去时单纯表示过去的经历；现在完成时表示过去的动作或状态延续到现在并可能持续下去。一般过去时的时间状语有：yesterday，last week，ago，in1980，in October，just now现在完成时的时间状语有：for，since，ever，never，just，already，yet，in past years， 共同的时间状语有：this morning，tonight，this summer，before，already， Then let the students read the above aloud. Step 7 ExercisesAsk the students to do the exercises by themselves and then check the answers. Make sure the students understand the passage. If necessa