上海牛津沪教版八年级(下)同步讲义unit3

1、实用文案第三讲 Unit3 Electricity上海牛津沪教版八年级（TUnit3 Electricity，）同步讲义适用学科初中英语适用年级初中二年级适用区域上海课时时长（分钟）120分钟（一对一）知识点知识点1 ：本单元词汇知识点2:词组知识点3:句型知识点4:情态动词的用法知识点5:宾语从句知识点6:系动词的用法教学目标知识：学生能够基本掌握 8年级上册Unit3中的词汇、词组、句型及语法。方法：牢记各个知识点的用法，归纳总结异同点，通过习题加强巩固。能力：熟练掌握各种词汇的用法；具备准确判断词性及转换的能力；熟练掌握情态动词的用法；熟练掌握宾语从句的句序；熟练掌握系动词的用法；教学重

2、点词性转换；宾语从句；情态动词；教学难点宾语从句的句序教学过程一、课堂导入教师讲述一个与本节课题目有关的英文小故事，引出今日所要讲解的知识点，然后让学生简单梳理一下所涉及的问题，带着问题学习本节 课的内容。二、复习预习教师引导学生复习上节课学的重点内容，检测单词的用法，(以提问、回顾的形式进行)，针对上节课的作业进行讲评、订正、答疑，并通 过英文小故事导入本节课所要学习的新知识。三、知识讲解1) 知识点一：重点单词1) servant ? s? :v ? nt【词性】n.【词义】仆人【易混淆点】servant 仆人service月艮务serve提供服务【经典例句】Why is the serv

3、ant in the title dangerous?为什么标题中的仆人是危险的？2) ) electricity ? ? lek ? tr ? s? ti【词性】n.【词义】电；电能【易混淆点】electricity电；电能electrical用电的【经典例句】Can you get me a package of electricity, please?你能给我一包电吗？3) trick tr ? k【词性11 v.【词义11哄骗【词性2】n.【词义2】诡计；花招【易混淆点】trick 哄骗；诡计cheat欺骗【经典例句】I ve tricked Daisy at last.我最终哄骗了

4、Daisy。4) foolish ? fu:l ? ?【词性】adj.【词义】愚蠢的【易混淆点】foolish 愚蠢的stupid愚笨的【经典例句】She ll really look foolish.她将看起来愚蠢的。5) measure ? me? ? (r)【词性】v.【词义】测量；度量【经典例句】A meter measures the amount you use.一米度量你所用的电量。6) ) bill b? l【词性】n.【词义】账单【易混淆点】pay for bill支付账单give your order点单【经典例句】And you get a bill for it mon

5、thly.然后你每个月获得为此收到一张账单。7) monthly ? m? n 0 li【词性】adv.【词义】每月一次【经典例句】And you get a bill for it monthly.然后你每个月获得为此收到一张账单。8) explanation ? ekspl ? ? ne? ? n【词性】n.【词义】解释；说明【易混淆点】explain v. 解释 explanation n.解释【经典例句】That s not a bad explanation although electricity is much moredangerous than water.那是个不错的解释，

6、尽管电要比水危险得多。9) careful ? ke? fl【词性】adj.【词义】小心的；谨慎的【易混淆点】careful小心的carefully小心地【经典例句】You must always be careful with it.你必须时刻小心对待电。10) invisible ? n? v? z? bl【词性】adj.【词义】看不见得；隐形的【易混淆点】invisible 隐形的visible看得见的【经典例句】Nobody s ever seen electricity. It s invisible.没有人见过电。它是看不见的。11) ) politely p ? la ? tl

7、?【词性】adv.【词义】有礼貌地；客气地【易混淆点】polite 客气的politely客气地【经典例句】Benny asked politely, MayI have mypacket of electricity, please?Benny 有礼貌地问：“我可以有我的一包电了吗？ ”12) contain k ? n? te ? n【词性】v.【词义】包含；含有；容纳【经典例句】They re packets that contain electricity.他们是包含有电的包装。13) switch sw? t ?【词性】v.【词义】开或关(电器)【易混淆点】switch on 开 s

8、witch off关【经典例句】May I switch on the TV?我可以打开电视吗？14) lock l ? k【词性】v.【词义】锁上【经典例句】You must lock the door.你必须锁上门。15) encourage ? n? k? r? d?【词性】v.【词义】鼓励【经典例句】We make rules to encourage people to behave in a way that is right.我们制定规则以鼓励人们用正确的方式表现。16) ) behave b ? ? he? v【词性】v.【词义】表现 【易混淆点】behave v.表现标准文档

9、behavior n.行为海关把电变成.不同形式的能量超过一个危险的仆人一包糖果一包电热能以包的形式购买【经典例句】We make rules to encourage people to behave in a way thatis right.我们制定规则以鼓励人们用正确的方式表现。17) customer ? k? st? m? (r)【词性】n.【词义】顾客【易混淆点】customer顾客custom习俗；【经典例句】Please be polite to your customers.请对你的顾客们有礼貌的。2.知识点二：重点词组1 ) exchange electricity in

10、to.2 ) different kinds of energy3 )more than4 )a dangerous servant5 )a packet of sweets6 )a packet of electricity7 )heat energy8 )buy it in packets看起来愚蠢的9 ) look foolish10get a bill for it monthly每月为此收到一张账在某种程度上11) in a way12) be careful with小心对待13look like看上去像14scratch one s head挠挠头通过细的电线来到与相连被埋在街底

11、的某人脸上的一个露齿产生电过来处理问题听对话努力找出开/关一小时后崇尚在家安全第一15) come into our flat through thin wires我们家16 ) be connected to17 ) be buried under the street18 ) a grin on one s face微笑19 )produce electricity20 ) come to deal with this problem21 )listen to the conversation22 )try to find out23 )switch on/off24) in an hou

12、r25) believe in safety at home3.知识点三：重点句型1) Can you get me a package of electricity, please?你能给我一包电吗?2 ) She doesn t even know what electricity is.她甚至不知道电是什么。3 ) She ll really look foolish.她将看起来愚蠢的。4 ) That s not a bad explanation although electricity is muchmoredangerous than water.那是个不错的解释，尽管电要比水危

13、险得多。5 ) You must always be careful with it.你必须时刻小心对待电。6 ) Nobody s ever seen electricity.没有人见过电。7 ) May I have my packet of electricity, please?我可以有我的一包电了吗？8 ) Daisy asked, Didn t you know that, Benny? Daisy问，你难道不知道吗？9 ) You mustn t make a noise.禁止制作噪声。10 ) Work in pairs to explain these signs.成对演示来

14、解释这些标记。4.知识点四：常见语法1 ）宾语从句宾语从句的句序是陈述语序。e.g. She doesn t even know what electricity is.她甚至不知道电是什么。2 ）系动词的用法look感官动词，意为“看起来”，后接形容词。e.g. She ll really look foolish.她将看起来愚蠢的。3 ）情态动词的用法can :表示“能力，许可，可能”e.g. Can you get me a package of electricity, please?你能给我一包电吗？may :表示“许可，推测，祝愿”e.g. May I have my packet

15、 of electricity, please?我可以有我的一包电了吗？must :表示“必须，一定”e.g. You mustn t make a noise.禁止制作噪声。四、例题精析【例题11【题干】 Lucy lift the heavy box by herself, so she askedTom forhelp.A. mustn t B. needn t C.couldn t D. shouldn t【答案】C【解析】本题考核情态动词。must表示必须，need表示必要，should表示应该，只有could表示能力，故选Co【例题2】【题干】 Mary enjoyed her s

16、tay in the UK because everyone in the hostfamily was to her.A. friendlyB. gently C. happily D.politely【答案】A【解析】本题考核形容词辨析。friendly 是形容词，友好的；其他 三个都是副词，分别是 gently温柔地，happily 愉快地， politely有礼貌地。be friendly to 对 友好。故选 A【例题3】【题干】I wonder.A.where is Diaoyu Island B. where is Diaoyu Island locatedC. where do

17、es Diaoyu Island lie D.where Diaoyu Island islocated【答案】D【解析】本题考核宾语从句。I wonder后接宾语从句有wh的疑问 副词+主+谓的陈述语序，且谓语动词的时态要与主句一致。故选D五、课堂运用【基础】1. Good citizens should their country. (servant)【答案】serve【解析】 本题考核servant的词形转换。因为名词 citizens与their country之间缺谓语动词，所以要用servant的动词形式serve。同时 要注意时态，情态动词should+动词原形。故填serve。

18、2. You need to wait another two for the visa to Australia.(month)【答案】months【解析】本题考核month的词形转换。数词two修饰名词复数，所以 是two months两个月。故填 months。3. Tomhas manyfriends here because he often speaks _to others. (polite)【答案】politely【解析】本题考核polite的词形转换。根据has many friends可知，Tom对别人说话是客气地，修饰动词speak to要用polite加ly的 副词形式

19、，故填politely 。4. It s too _ here. How can we have the discussion for our project? (noise)【答案】noisy【解析】本题考核noise的词形转换。It is后用形容词，noise是噪声， 其形容词形式为noisy嘈杂的，故填noisy。5. Boys and girls, watch and try to find out somethingstrange.(care)【答案】carefully【解析】本题考核care的词形转换。care作名词，careful作形容词， 因为修饰动词watch,所以要用副词c

20、arefully 。故填carefully 。 【巩固】1. The medicine is known to p side effects on children.【答案】produce【解析】本题考核动词。Medicine与side effects之间缺谓语动词“产 生”，且词组be known to do 用动词原形，故填 produce o2. Electricity and sound are i.【答案】invisible【解析】本题考核形容词。曰ectricity和sound共同的特性都是看不见的，所以用invisible 表示隐形的，看不见的。故填invisible3. We

21、mush s off the lights when we are leaving the room.【答案】switch【解析】本题考核动词。当你离开房间必须要关灯的，所以用 switch offthe lights 关灯。故填 switch 。4. You must remember to be c with fire.【答案】careful【解析】本题考核固定词组。be careful with fire谨慎用火。故填careful 。5. Peter was so angry that he hit the thief _ his face.A. to B. with C. on D. by【答案】D【解析】本题考核介词辨析。hit sb. by one face是固定搭配，表示打在某人脸上。故选D【拔高】I.Can you think one more example?A. with B. about C. of D. over【答案】C【解析】本题考核介词辨析。think of是想出，符合句意。故选Co2. You look f in that dress. Take if o