八上Unit 2第四课时Section B 3a-4 .doc

八年级上册Unit 2 How often do you exercise?第四课时 Section B 3a-4 李 华一、教学目标知识目标：能熟练运用下列单词：dentist magazine however than almost none less point短语：more than 、less than、能力目标：能运用所学的频度副词及短语描述并写出自己日常生活中的好习惯和坏习惯。情感目标：通过健康测试体验何为健康的生活方式，学会积极培养良好的日常生活习惯。二、教学重难点1. 教学重点：1) 能运所给的提示词来描写个人的饮食起居等方面的习惯。2）能运用一些相关资料对他人进行好习惯与坏习惯的调查。21世纪教育网2. 教学难点：能运所给的提示词来描写个人的饮食起居等方面的习惯。预习学案预习重点：尝试运用所学语言谈论饮食习惯。预习任务一：预习3a-4,写出下列单词和短语。单词：牙科医生_杂志 期刊_然而 不过_ 几乎 差不多 没有一个 点_比_短语：多于_少于_ 去看牙医 许多好习惯 一个16岁的高中生_一天两个多小时_多少小时_预习任务二：根据你的实际情况填写下面的表格habitactivitiesHow oftengoodbad三、教学过程：Step1.Greetings:Step2: Show the learning aimsStep3:Warming up Play a game to review the following frequency words or phrases always (100) usually often sometimes hardly ever never every day once a week twice a week three or four times a week 1）屏幕闪动上面单词或短语的汉语，让学生抢答。 2）教师引导学生回顾这些词的频度高低，然后让学生齐读记忆。 3）学生用上面的词或短语展示至少四个自己坏的或好的习惯。Step4 New teaching: 1）教师通过一段文章介绍自己的好习惯与坏习惯，同时把本节课所出现的生词融入到这段话中。 My Habits I have many good habits. I exercise almost every day. I often buy some magazines. I sleep more than 8 hours every night. I watch TV less than two hours every week. How many hours do I play computer games every week? None . I never play computer games. However ,I have some bad habits, too. I hardly ever do housework and I never go to the dentist for teeth cleaning. I m afraid. 2）学习新词 Point 得分；点 n. 指；指向v. 1. n.得分 1分 2分 2. n.点 1.5 2.4 语言点 难点 3.v.指着point at，指向 point to 指着你的鼻子 指着窗户 本环节1、2、3号答对得一分；4、5、6号参与得一分 4. more than，意为“多于”，相当于over; 其反义词为less than ，意为“少于” than 比 e.g. 1）She watches TV for_ (多于两个小时)a day. 2） He sleeps _(不到7小时) every day. 5.however 副词，意为“然而，可是”，表示转折关系，可放在句首、句中、句末。 e.g. I was hungry, however, she gave me some water. He is very tired, however he didnt stop working. 6.none(pron.代词) 没有一个，毫无 Eg：-How many students are there in the classroom? -None. 一般要跟of 连用,表示: 没有人, 没有任何东西; None of +复数名词,后面动词用单复数均可,但一般用复数. None of us (enjoy)getting up early. None of +不可数单数名词,后面动词只能用单数. None of that money on the table (be) mine. None of the students (know) the answer. 3) 阅读训练 1.介绍3a 主人公Jane 的好习惯和坏习惯，限时3分钟让学生用本单元所学的频度副词或短语填空（分层记分1、2号全对得一分，3、4号错2个以下得一分，五、六号对4个以上得一分。）2.合作答疑 Read 3a again and find your difficulities,then discuss in groups.If they need,you can ask the teacher for help. (鼓励学生提出问题或回答问题得一分)3.Ask the students to translate these phrases or sentences into Chinesea .16-year-old high school studentb. ask her about her habits c .stay up late.d. However she has some bad habits, too.e. more than two hours a dayf. go to the dentist for teeth cleaning.Step5 拓展延伸：写作训练1.Ask the students to write a report about their good and bad habits. Say how often they do things. (限时5分钟)通过下面的例文指导写作 I have lots of good habits. I exercise every day. I always read books. I eat fruit every day. I drink milk twice a week. I never stay up late. Howeverbut I have some bad habits, too. I always watch TV for two hours a day. I use the Internet twice a week. I hardly ever help with housework. I never go to the dentist.Good habits lead to a good life. So Lets start changing (改变) from now! 2.Work in groups, exchange the report with the deskmates and correct the mistakes . Ask the students to choose the best composition in their group and read it to the whole class.展示优秀作文本小组得一分Step6.Take the health quiz. 1）让学生根据实际情况进行测试 1.How often do you eat breakfast? a. Never b.A few minutes a week c. Almost every day. 2.How often do you eat fast food? a. Never b. A few minutes a week c. Almost every day 3.How often do you eat vegetables and fruit? a. Never b. A few minutes a week c. Almost every day 4.How often do you exercise? a. A few minutes a year b. A few minutes a month c.A few minutes a week 5.How many hours do you watch TV every week? a. None b. One to four c. Five or more 6.How many hours do you usually sleep at night? a. Less than six. b. Six or seven c. Eight or more 2) 教师对学生的调查结果评价，并进行情感教育，引导学生养成良好的生活习惯。Step 7课堂拾贝：引导学生回顾总结本节课所学的单词、短语写作知识。Step 8当堂检测（大屏幕出示答案，同桌互查答对一题得一分） 将下列句子译成英语1.他有许多好习惯。 2.Mary 从来不去看牙医。3.你多久看一次杂志？4在晚上你通常睡多少个小时？5. 我每周看两个多小时的电视。Step 9The best group小组长汇报本组本节课得分，产生最棒的小组，教师予以口头表扬。Step10