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1、最新资料推荐 Unit4 lesson One Population ProblemsEducational Objectives：1. To master and use the past perfect tense.2. Discuss population problems.3. Express causes.Teaching Objectives：1. Practice Ss ability to communicate with others.2. Enhance the listening by a video.3. Create a chance for Ss to make d
2、ialogue.Emotional requirements：1. Raise the interest of learning English by encouraging and stimulating the students to participate in English activities.2. Help students to describe a person.Procedures.I. Warming up1. Show a graph of population, let them talk about it freely.2. Tell them something
3、about the worlds population problems, repair for the text.3. Show some questions, let them finish them in five minutes.T: Lets look at the graph, we can answer the five questions, can you finish them in five minutes?S: Yes, of course.T: ok, I will check you later. Do it quickly.T: Ok, lets check the
4、 answers.S: 1.It shows the population growth.2.Yes, it is.3.Its 6.4 billion.4.They are faced with the problem of overcrowding, population growth, aging population.5.It should control the birthrateII. While-task activities1. Teach the text. i) T: We know the world population is growing very fast, do
5、you know whats the population of many countries? What s the population many years ago? lets read the text, then fill in the blanks.S: Read Show the answers to them , let them check themselves.ii) Do a pair work to ask and answer questions about the text.2. Tell the past perfect tense.1) Ask one of p
6、air to read the sentences.2) Answer the questions.T: We can find the past perfect tense.过去完成时的用法一、构成方法由 had 加动词的过去分词构成。 二、用法说明表示在过去某一时刻或某一动作之前已经完成了的动作，即“过去的过去”。如：She said she had never been to Paris. 她说她从未去过巴黎。When the police arrived, the thieves had run away. 警察到达时，小偷们早就跑了。By the time he was twelve
7、, Edison had begun to make a living by himself. 到了十二岁那年，爱迪生开始自己谋生。注意：过去完成时是一种相对时态，一定要有一个作参照的过去时间或过去动作作比较，否则，就不能用过去完成时。但下列3种情况虽然有是先后发生的两个过去动词，却同用一般过去时：1. 先后发生的一系列动作，但并不强调先后时，最后两个动词用then，and，but 等连接。如：On Saturday afternoon, Mrs. Green went to the market, bought some bananas and visited her cousin. 星期下
8、午，格林夫人去了市场，买了些香蕉，然后去看望了她的表姐。2. 两个动作是紧接着发生的，可用一般过去时。如：When I heard the news, I was very excited. 我听到那个消息时，非常高兴。3. 叙述历史事实，可用一般过去时。如：Our teacher told us that Columbus discovered America in 1492. 我们老师告诉我们哥伦布于1492年发现了美洲。表示从过去某一时刻开始一直延续到另一过去时刻的动作或状态。跟现在完成时一样，也常与 how long, for three days, before 等表示一段时间的状语
9、连用。如：When Jack arrived he learned Mary had been away for almost an hour. 当杰克到来时，他才了解到玛丽已经离开差不多一个小时了。表示未曾实现的希望或打算。表示希望或打算的动词，如hope, want, expect, think, suppose, plan, mean, intend等的过去完成时，后接不定式to do时，表示未曾实现的希望或打算，即“本来希望或打算做某事(但却没做) ”。如：I had hoped to send him a Christmas card，but I forgot to do so. 我
10、本来希望寄给他一张圣诞卡的，但我忘了寄了。Do some exercises to consolidate the using.3. T: Do you know the future problems ?S: No,/Yes,.T: Ok, lets talk about it by reading a passage. And then finish two tasks below.III. Post-task activities To make a short dialogue and ask some Ss to act it out using the knowledge they
11、 learned today.IV. Homework1. Recite the sentence patterns2. Write a short essay “ Talk about the problems about population.”板书设计：Unit4 lesson One Population Problems1.It shows the population growth.2.Yes, it is.3.Its 6.4 billion.4.They are faced with the problem of overcrowding, population growth, aging population.5.It should control the birthrate.过去完成时的用法一、构成方法由 had 加动词的过去分词构成。 二、用法说明表示在过去某一时刻或某一动作之前已经完成了的动作，即“过去的过去”。教学反思：通过本课教授，发现积极创设情境，会极大的激发学生学习欲望和积极性，本课我主要采用了任务型教学法，比单纯教师讲授更有效果，今后还会多多采用。最新精品资料整理推荐，更新于二二二年四月四日2022年4月4日星期一08:46:37
【金识源】八年级英语下册 Unit 4 Lesson 1 Population Problems教学设计1 上海新世纪版
