2021秋八年级英语下册 Unit 3 Online tours（The first period Comic and Welcome to the unit）教学案（新版）牛津版.doc

1、The first period Comic and Welcome to the unit学习目标1. 了解并掌握电脑主要部件的英语名称。2. 能用英语谈论电脑的基本用途。3. 掌握四会内容（要求听得懂、会说、会读、会写）4. 学习重难点：掌握电脑主要部件的英语名称；掌握look like的用法。一、 自主先学Task 1：Learn about computers.Task 2: Listen to the tape of Talking about the different uses of computers on Page 35 and answer the questions.1.

2、 What does Daniel usually use his computer for?2. Why does he use?3. How oftenn does he use?4. What do you use your computer for?二、 合作合作Task 3. Make up a new dialogue with your partner and practise it in your group.Task 4.Listen to the tape of Comic strip and make up the sentence in order.1. TV, a,

3、looks, it, like.2. Change, channel, lets, the.3. an, this, hour, began, programme, ago.4. you, used, have, this, before?Task 5 在书上找出这些短语并标注，然后记忆：1. online tours 在线旅行2. look like a TV 看起来像电视机3. Lets change the channel. 让我们换频道吧。4. the remote control 遥控器5. the main unit 主机6. chat with friends 和朋友聊天7. d

4、o word processing 做文字处理8. send and receive emails 收发邮件9. Its fast and easy to use it to search for information. 用它来查找信息又快又容易。10. watch videos 看视频11. What do you usually use your computer for? 你经常用电脑做什么？三、 点拨拓展1. It looks like a TV它看起来像一台电视机。 (1) look like意为“看起来像”，其中like是介词，后面常跟名词。句子结构为：A looks like

5、B，表示“A看起来像B”，谓语动词look的形式视主语的单复数形式而定。Lucy looks like her mother露西看起来像她的母亲。(2) look the same意为“看起来一样”，后面不跟宾语。句子结构为：A and B look the same，表示“A和B看起来一样”，谓语动词look用复数形式。Lucy and Lily look the same.露西和莉莉看上去长得一样。2What do you usually use your computer for?你通常用电脑干什么？“Whatfor?”是什么意思？ “Whatfor?”的意思是“为什么？”，相当于why

6、。3I usually use it to search for information。我通常用它搜索信息。search可用作_词和_词。(1) search用作及物动词，后跟“人”时，意为“搜身”；后跟地点名词时，意为“对某地进行搜查”。也可在宾语后加for短语，表示搜查的具体目标。The enemy searched the mountain for the Red Army, but they failed.敌人在山上搜寻红军，但没找到。(2) search for意为“寻找”，可视为是searchfor的省略式，此时search为不及物动词。She searched for her

7、lost cat everywhere，but she failed.她到处寻找走失的猫，但没找到。4How often do you use your computer for this?你多久用你的电脑搜索一次信息？ how often意为“多久一次”，表示频率，用来对usually，every day，twice a day等频度副词或状语进行提问。 辨析 how long，how often，how soon与how far(1) how long主要有以下两个意思：表示多长时间，主要用来对一段时间（如three days，for four weeks, sincetwodays ag

8、o等）进行提问。 表示某东西有多长。- How long is the river? 这条河有多长？ - About 500 km.大约500千米。(2) how often指每隔多久，主要用来对频度副词或状语（如once a week，three times a month等）进行提问。 (3) how soon指再过多久，主要用来对表示将来的一段时间如(in an hourin two weeks等）进行提问。 (4) how far表示（距离）多远。- How far is it from here to the zoo? 动物园离这儿多远？ -Its 6 kilometres大约6千米

9、。课堂检测：A根据中文提示写出单词。1What is the_（鼠标）used for?2. Now many young people like to shop_（在线的）3What do you think of the computer _（程序）?4I_（收到）two presents yesterday.5. Today we are going to learn_（单元）Two.6. I usually use my computer_ (search) for information.7. The computer can be used for word_ (process).

10、8. My brother loves_ (use) the computer to help him with his lessons.9. This film is_ (bore).10. He_ (find) a wallet in the street yesterday afternoon,英汉互译：1.online adj._ 2.channel n. _3. keyboard n._4.mouse n. _5_n节目；计划，方案 6_ n机件；单位7_n显示器，屏幕 8_ vt.收到，接到9remote control 10._看起来像11_发送和接收邮件 12._搜索信息13. What do you usually use your computer for? _14. I usually use it to search for information._ 教后反思：先带领学生巩固练习本课的重点句型，然后学习对话帮助学生克服看不懂句子的困难。