【备课参考】八年级英语下册 8B Unit 3 Online tours 第1课时 Comic strip Welcome to the unit预习案 （新版）牛津版(1).doc

第1课时 comic strip & welcome to the unit预习目标1根据单词表，预习课本第3435页的单词，能根据音标正确拼读这些单词。2听课本第34页comic strip部分的录音，能正确地模仿录音中的语音、语调。3找出课本第3435页新出现的短语和重点句型，查一查它们的意思。预学热身通过预习，了解本课时的单词、短语和句型（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._自主探究，请带着下面这些问题阅读教材。1. do you think eddie and hobo know well about computers?2. what do eddie and hobo think the computer looks like?3. do you know what the remote control really is?教材导读1. it looks like a tv它看起来像一台电视机。探究点：“看起来像”用_表示。指点迷津 look在句中是系动词，意为“看起来”，后面常跟形容词作表语。you look tired.你看上去累了。(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 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。你弟弟看上去长得像你父亲吗？_ your younger brother_ _ _ _?汤姆和蒂姆长得像吗？_ tom and tim_ _ _？2what do you usually use your computer for?你通常用电脑干什么？探究点：“whatfor?”是什么意思？指点迷津 “whatfor?”的意思是“为什么？”，相当于why。what do you buy the book for? 你买这本书干什么？( )- _ did you come here for? -to see my son.a. why b. what c. where d. how3i usually use it to search for information。我通常用它搜索信息。指点迷津 探究点：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 lost cat everywhere，but she failed.她到处寻找走失的猫，但没找到。( )-why did the police_ the room? -sorry，i dont know either.a. search b. search for c. look d. look in4how often do you use your computer for this?你多久用你的电脑搜索一次信息？探究点：how often的意思是什么？对什么时间状语进行提问？指点迷津 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。how often do you play football? 你多长时间踢一次足球？every wednesday afternoon.每周三下午。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，four weeks等）进行提问。- how long did he stay here? 他在这儿呆了多久？about two weeks，大约两个星期。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。-how often does he come here? 他（每隔）多久来一次？- once a month每月一次。(3) how soon指再过多久，主要用来对表示将来的一段时间f如in an hourin two weeks等）进行提问。-how soon will he come back? 他要多久才回来？-in an hour一小时以后。(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。 ( ) (2013益阳)- _ does your father go to see your grandmother?-once a month.a. how long b. how soon c. how often热身练习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.b用所给单词的适当形式填空。1. i usually use my computer_ (search) for information.2. the computer can be used for word_ (process).3. my brother loves_ (use) the computer to help him with his lessons.4. this film is_ (bore).5. he_ (find) a wallet in the street yesterday afternoon,c单项选择。( )1. its too noisy. if you want to hear the tv news clearly, youd better_ the tv.a. turn on b. turn off c. turn up d. turn down( )2. - excuse me, but i dont think you can smoke here.- im really sorry. i_ that this is a non-smoking room.a. dont know b. have no ideac. had no idea d. havent know( )3. her new glasses make her_ an owl(猫头鹰)a. looks like b. look likec. look the same d. looks the same( )4. look! the light in the room_a. turn on b. turns on c. is turning on d. is turned on( )5. the film is very_, and everyone feels with it.a. boring; boring b. bored; boredc. boring; bored d. bored; boring参考答案预学热身1联网的，在线的 2频道 3键盘 4鼠标 5. programme 6. unit 7. screen 8. receive 9遥控器10. look like 11. send and receive emails 12. search for information 13.你通常用电脑干什么？ 14我通常用它搜索信息。1. no, i dont. 2.they think it looks like a tv. 3yes