英语八年级上册Unit 2 How often do you.doc

Unit 2 How often do you exercise Period1 Section A（1a-1c）一【教学目标】1.知识目标：Words: housework ;always, usually , often, sometimes , hardly , ever, never., once , twice . Phrases: how often ；three times a week ；every day； twice a week Sentences: What do you usually do on weekends? I sometimes go to the beach. -How often do you eat vegetables? - Every day. Most students do homework every day. 2.能力目标: 会使用频率副词及短语；能描述课余时间的活动安排；3.情感目标: 培养学生良好的学习和生活习惯二【教学重点】1.三会词 和 短语：频度副词：always, usually, often, sometimes, hardly和never的应用疑问词how often的用法2.重点句子1. How often do you exercise? 你（你们）多久锻炼一次身体？2.“ What do you usually do on weekends?” “ I usually play soccer.”“周末你通常做什么？”“我通常踢足球。”3.重点语法: 频度副词三【教学难点】 How often 的用法及频度副词的用法四【教学方法】 启发性和任务型教学五【教学过程】1.导入：T: - What do you do on weekends ?S:- I often do T:- How often do you do?2.布置任务：用英语写出下列频率副词。总是_ 通常_ 经常_ 有时_ 几乎不_ 从不_ 3.合作探究：1.定义usually/ sometimes/always/often等词在英文中被称为“频度副词”，是用来表示动作频率的，但程度上有别。常见频度副词按频率大小排列如下：always（100%）usually（80%）often（60%）sometimes（40%）seldom（20%） never（0%）2.频度副词的位置频度副词在句中习惯上位于be动词、助动词等之后，行为动词之前。1. 在be动词之后。如：She is sometimes very busy. 她有时很忙。2. 在第一个助动词或情态动词之后。如：I will never forget this lesson. 我将永远忘不了这一课。3. 在实义动词之前。如：We often go there. 我们常去那儿。sometimes也可放在句首、句中或句末，often也可放在句末（一般不放在句首）。如：Sometimes she writes to me. =She writes to me sometimes. 她有时候给我写信。She writes to me often. 她经常给我写信。如果有两个助动词，频度副词通常放在第一个助动词后面。如：We have never been invited to one of their parties. 他们聚会，一次也没邀请过我们。She must sometimes have wanted to run away. 她有时候一定想到过要逃走。3.频度副词的用法always 频率最高，表示动作重复、状态继续，表示“一直、总是”，其反义词为never。always等与not连用时，表示部分否定。如：The rich are not always happy. 有钱的人并不总是快乐的。如果要变为否定句，应将always改为never才能全部否定。如：Li Ping is always late for school. 李平上学总是迟到。Li Ping is never late for school. 李平上学从不迟到。（全部否定）Li Ping is not always late for school. 李平上学不总是迟到。（部分否定）频度副词通常和一般现在时连用，表示动作发生的频率。但always与进行时连用时，并不强调动作正在进行，而是表示赞叹、厌烦等情绪。如：He is always thinking of others. 他总是想着别人。（赞叹）She is always asking silly questions. 她总是问些愚蠢的问题。（厌烦）The boy is always asking for money. 这个小男孩总是要钱。（厌烦）usually意为“通常”，表示习惯性动作或状态，很少有例外。如：We usually go to school at seven in the morning. 我们通常在早上七点上学。My mother and I usually go shopping on Sundays. 我和妈妈通常在星期天去买东西。4.重点单词，短语和句子的讲解：1.How often do you exercise? 你（你们）多久锻炼一次身体？解析：How often + 助动词do(does或did) + 主语 + do sth.? 疑问词how often是问频率(多久一次),（在这里助动词do(does或did) 是起帮助构成疑问的作用）与一般现在时或一般过去时连用，回答一般是用表示频率的副词，如：once, twice, three times, sometimes, often, quite, often, never, every day, once a week , twice a month , three times a month , three or four times a month等。Eg1) How often do you go to the factory? Twice a week.你们多久到工厂去一次？每星期两次。 Eg2) How often does he go shopping? He goes shopping once a month. 2.“What do you usually do on weekends?” “ I usually play soccer.”“周末你通常做什么？”“我通常踢足球。”解析：第一个do为助动词, 在这起帮助构成疑问的作用；而第二个do则是实义动词。Eg1) What do you usually do on weekends? I often go to the movies.Eg2) What does she usually do on weekends? She sometimes go hiking.5课堂练习:(1).单选1）_do you do your homework? -Every day. A. When B. How often C. How many times D. What time 2）She hardly ever _sports games _TV on Sunday evening. A. watching; over B. to watch ;in C. watch; by D. watches , on 3）My father _goes to the movies. A. sometime B. sometimes C. sometime D. some times 4）Lisa usually gets up early. So she is _ late for class. A always B. hardly C. often D. sometimes (2). 句型转换1）She usually reads English in the morning. (就划线部分提问) _ _ she usually _ in the morning? 2）He goes to the movies once a week.(就划线部分提问) _ _ _ he _to the movies? 3)用hardly 或hard 填空 Its raining _. People can _ go outsides. 6.作业布置：(直击中考)1）Speak aloud , please! I can hear you.A. usually B. almost C. hardly D. nearly2）Since you have finished your home work, how about ?A. go to run B. go running C. going to run D. going running六【板书设计】Unit 2 How often do you exercise Period1 Section A（1a-1c）Words: housework ;always, usually , often, sometimes , hardly , ever,