英语人教版八年级上册unit3 grammar focus.doc

Unit3 grammar focus教学设计一、Teaching Goals 1、形容词及副词的比较级（Comparative Forms of Adjective and Adverbs)A.Sam has longer hair than Tom.B: Peters heavier than Paul.C: Pauls shorter than Peter.2、asas结构用来进行同级比较A:Tom is as tall as Paul.B:Peter runs as fast as Mike.3、使用形容词及副词的比较级对两者进行比较的疑问句及回答。A:Thats Tara,isnt it?B:No,it isnt,Its Tina.Tina is taller than Tara.And she also sings more loudly than Tara.二、Teaching and learning steps:Step 1. Teaching Aims：Tell Ss they are going to learn Unit 3Grammar Focus 3a-3c.Step 2. Review1.According to the pictures, write down the Comparative Forms of Adjective and Adverbs2.Using the pictures above, let Ss work in pairs：Li Yong is funny.Pan is funnier than Li Yong.Andy is smart.Mike is smarter than Ander.3.Role play the dialogue 2d on page 18 in front of the class.【设计意图】：通过单词复习及对话练习，检查学生对于上节课知识的巩固，了解把握学生。Step 3. Grammar focus1.Show two colums of words, and ask students to match these Adjective and Advervbs with their comparative forms.(利用PPT展示两栏词语，引导学生读出这些单词，将形容词及副词与其比较级相匹配。)2.Ask students to find out the differences between the two colum words and try to find the rules.(找不同，找规律)3. Teachers can give some help to the students(通过指出一些形容词及副词比较级的变化，帮助学生找到变化规律)结论：形容词与副词的比较级的构成：（1）规则变化构成方法原级比较级一般加-erTallShortlongTallerShorterlonger以e结尾的词加-rnice largelate NicerLargerlater以“辅音字母+y”结尾的词，改y为i，再加-erHeavyEasyhappyHeavierEasierhappier以重读闭音节结尾，双写辅音字母，再加-erThinBigFathotThinnerBiggerFatterhotter多音节形容词和部分双音节形容词构成比较级时，在前面加moreOutgoingFriendlyloudlyMore outgoingFriendlyloudly(2)不规则变化原级比较级Good/wellbetterBad/badly/illworseMany/muchmorelittlelessfarFartherfurther完成下列句子：(1)他们的书比我们的多。They have _ _ _us.(2)这个房间比那个房间小。This room_ _ _that one.3.Divide students into two groups,and ask them to read Grammar Focus seperately.Draw a line under the adjective,and circle the adverbsIs Tom smarter than Sam?No,he isnt.Sam is smarter than Tom.Is Tara more outgoing than Tina?No,she isnt.Tina is more outgoing than Tara.Are you asfriendly as your sister?No,Im not.Imfriendlier.Does Tara work as hard as Tina?Yes,she does.Whos more hard-working at school?Tina thinks she works harder than me.4.Ask students to read Grammer Focus again,and pay attention to the sentence structure “asas”5. 翻译探究：Tara works as hard as Tina._.“as +形容词或副词_+as”表示“_”，否定形式为“_”或“_”。译为“_”。如：(1)我和你一样活泼。_(2)他不如刘翔跑得快。_(3)这本书不如那本书有趣。_(4)他和你一样友好。_【设计意图】：学生合作学习观察并总结，目的是引导学生观察、发现、归纳和掌握语言规律，形成有效的学习策略。教师只进行点拨精讲。Step 4. 3a Use the worda to write questions and answers.1.Julie/tall/youQ:Is Julie as tall as you A:No,she isnt. Shes taller than me.2.Jack/run/fast/SamQ:_A:No,he doesnt.He runs_ than Sam.3.your cousin outgoing youQ:_4. Paul/funny/CarolQ:_A:No,he isnt.Hes_than Carol.【设计意图】：通过实战练习，帮助学生进一步掌握“asas”句型的用法。Step 5. 3b Think of yourself two yearsago.Write about how you are differrent now.1.Are you taller? Yes, I am.Im taller now than I was two years ago.2.Are you funnier?_ 3.Are you more outgoing?_4.Do you study English harder?_5.Do you sing better?_【设计意图】：通过语境练习，对比现在的自己和两年前自己的区别，进一步帮助学生掌握形容词及副词比较级的用法。锻炼学生的实际运用能力。Step 6. 3c Compare your parents. Check(right)who is smarter,funnier,etc.in the chart.Then ask your partner about his/her parents.MotherfathersmartfunnyWork hardoutgoingfriendly 【设计意图】：通过对自己身边最熟悉的人物进行对比，进一步掌握比较级在现实生活的运用，培养学生的情感意识。Step 7.Summary1. Lead the Ss to have a summary about the Comparative Form. It includes Fuctionwhen to use the Form.2. Show the teachers summary on the screen in order to help the Ss to check their own summary.The end-of-class test(一)写出下列形容词和副词的比较级： long_ wide _ fat _ heavy_ slow _ few_ brightly_Fast _ far_ _ quickly_happy_unhappy_ (二)选择填空：1 He feels _ today than yesterday. A. tired B. more tiredC. more tireder D. much tired 2. Which do you like _, coffee, tea or milk? A. the worst B. worse C. better D. the best3. Of the two toys, the child chose_. A. the expensive one B. one most expensive C. a least expensive D. the most expensive of them4. The line is _ than that oneA. more longer B. not longer C. much more longer D. many more longer 5. The earth is _ the moon. A. as 49 times big as B. 49 times as bigger as C. 49 times as big as D.as big as 49 times 6. The book is _ of the two.A. thinner B. the thinner C. more thinner D. the thinnest 7. She looks _ than she does.A. the more older B. very older C. much older D. more older 8. The garden is becoming _. A. more beautiful and more B. more beautiful and beautiful C. more and more beautiful D. more beautiful and beautifuler9. They competed（比赛） to see who could work _. A. the fastest and best B. the faster and the better C. fastest and better D. faster and better 10._ hurry, _s