人教版英语八年级上Unit3课件.ppt

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1、 Section A Section A What does he look like?He is shorttallYaoMing is tall.Pan is short.JolinShe has long hair.She has short hair.long hair /short hairJim Bob Bob is heavy.Jim is thin.thin She is young.He is old.young /oldheavyshort short hairheavy/fatsmartstrongoutgoingserious严肃的，稳重的严肃的，稳重的友好的友好的,外

2、向的外向的聪明的，漂亮的聪明的，漂亮的foolish有趣的有趣的,好玩的好玩的文静的文静的,内向的内向的funnytalllong hairthin quietweakfoolish有趣的有趣的,好玩的好玩的文静的文静的,内向的内向的funnytalllong hairthin quietJordan is tall.Yao Ming is tallerJordan2.26m1.98mthan Jordan.Yao Ming is taller.Jordan is _ _ Yao Ming.shorter than Look at the pictures, compare and descr

3、ibe them: Liu Huan is heavy .Fei Mao is heavier80kgthan Liu Huan.Fei Mao is heavier.90kgCai Yilins hair is long.Liu Yifeis hair is longershort/long hairLiu Yifeis hair is longer than Cai Yilins.Cai Yilin has long hair.Liu Yifei has longer hairLiu Yifei has longer hair than Cai Yilin.1. Jordan is tal

4、l. 2. Yao Ming is taller than him.更 高A+比较级+than +BO is _ than IfatterThis example is more interesting than that one.O比比I 胖些胖些.The red box is big. The green box is small. The red boxthe green box. The green box the red box.The purple ruler is long. The blue ruler is short. The purple ruler is longer

5、than the blue ruler. The blue ruler is shorter than the purple ruler.Lin Xinru is thin.Liu Yifei is thinner. Liu Yifei is thinner than Lin Xinru.45kg48kgLi Yong is more outgoing than Cheng long.Cheng Long is outgoing.Li Yong is more outgoing.Zhao Weis eyes .Zhou Xuns eyes .biggersmallerare bigger th

6、an Zhou Xuns.are smaller than Zhao Weis 周迅周迅赵薇赵薇Zhao Wei has_ Zhou Xun .Zhou Xun has_ Zhao Wei .bigger eyes thansmaller eyes thantallthin long hairquietlyloudlyshort hairheavyshort1a. Match each word with its opposite!Listen and number the pairs of twins in the picture.1b123Conversation 1 A: Is that

7、 Sam play the guitar? B: No. Thats Tom . Sam has _hair _Tom. C: Both Tom and Sam can play the drums. but Sam plays them _ than Tom.Conversation 2 A: That s Tara ,isnt it? B: No, it isnt .Its Tina. Tina is _than Tara. And she also sings_ _ than Tara. Conversation3 A: Is that Paul? B: No, thats Peter.

8、 Peters _than Paul. And Pauls _than Peter.1b1b Listen again and complete the conversationslongerthanbettertallermore loudlyheaviershorterTinaTaraWhich runs faster, the dog or the sheep?The dog runs faster than the sheep.The sheep runs fast.Sam _the drums _ Tom.Tina _ _ loudly _ Tara.SamTomplays bett

9、er thansings more thanA +动词动词+副词比较级副词比较级 +than +BIs that Tara? No, it isnt. Its Tina. Tara Tina 1c1ctallerTina is taller than Tara. And she also singsmore loudly than Tara.sings more loudlyWho is that?No, it isnt. Its Paul. Is that Peter?Paul Peter Peters heavier than Paul. And he plays the guitar b

10、etter. Pauls shorter than Peter.heavierplays the guitar bettershorter-Is that Eric?-No, thats David. Eric is thinner than David and he is better at sports than David.DavidEricEricthinis better at sports大多数形容词和副词有三个等级：大多数形容词和副词有三个等级：原级、比较级、最高级。原级、比较级、最高级。一、构成一、构成1. 1. 构成的不规则变化构成的不规则变化: :eg. good / we

11、ll better best bad / badly worse worst many / much more most little less least far farther / further farthest/ furthestGrammar: 形容词和副词的形容词和副词的 比较级和最高级比较级和最高级2. 构成的规则变化构成的规则变化:1) 单音节词和少数双音节词单音节词和少数双音节词 一般在词尾后加一般在词尾后加-er 或或-est. 如：如：cold colder coldest nice nicer nicest2) 重读闭音节词末尾只有一个辅音字母重读闭音节词末尾只有一个辅

12、音字母时时, 先双写这个辅音字母先双写这个辅音字母, 再加再加-er或或-est。如如: big bigger biggest thin thinner thinnest3) 3) 以以“辅音字母辅音字母+ y”+ y”结尾的双音节词，结尾的双音节词， 先改先改y y为为i, i, 再加再加-er-er或或-est-est。如：。如： easy easier easiest easy easier easiest happy happier happiest happy happier happiest4) 多音节词和部分双音节词在词多音节词和部分双音节词在词 前加前加more或或most。如

13、：。如： delicious more delicious most delicious interesting more interesting most interesting比较级规则变化口诀比较级规则变化口诀：比较级，要变化，一般词尾加比较级，要变化，一般词尾加erer。(long(long- -longlongerer) )词尾若有哑音词尾若有哑音e, e, 直接加直接加r r就可以。就可以。( (nice-nice-nicenicer r) )重读闭音节，重读闭音节， 单辅音字母要双写。单辅音字母要双写。( (hot-hot-hothotterter) )辅音字母若加辅音字母若加y

14、, y, 记得把记得把y y变为变为i i。(happy(happy- -happhappierier) ) 二、用法二、用法1.比较级表示两者比较级表示两者 (人或事物人或事物) 的比较。的比较。eg. I am taller than Tom.My dress is more beautiful than hers.2. 2. 最高级最高级表示三者或三者以上表示三者或三者以上 (人或事物人或事物 ) 的比较的比较, 其中有一个在某一其中有一个在某一方面超过其他几个时方面超过其他几个时, 用最高级。最高级的前面一般要加定冠词用最高级。最高级的前面一般要加定冠词 the, 后面可带后面可带 o

15、f ( in )短语来说明比较的短语来说明比较的范围。范围。如：如：She is the youngest in the class.Jason is the tallest of the three.Whose handwriting is the best of all?3.在形容词比较级前还可用在形容词比较级前还可用much, even, still, a little来修饰来修饰, 表示表示“的多的多”, “甚至甚至”, “更更”, “一些一些”。如：。如：This city is much more beautiful than before. Shes a little more

16、outgoing than me. Its a little colder today. 4.“比较级比较级and比较级比较级”意为意为“越来越越来越” 。多音节比较级用多音节比较级用“more and more形容词原级形容词原级”形式。形式。如：如：Its getting worse and worse. The group became more and more popular. 5. “Which / Who is + 比较级比较级？”比较比较A、B两事物两事物, 问其中哪一个较问其中哪一个较时时用此句型。如：用此句型。如：Which T-shirt is nicer, this o

17、ne or that one? Who is more active, Mary or Kate?Which one is more popular among students, going to concerts or going to movies?1) than后面接代词时后面接代词时, 一般要用主格形式，一般要用主格形式， 但在口语中也可使用宾格形式。但在口语中也可使用宾格形式。 如：如：My brother is taller than I / me. 2) 当需要表示一方超过另一方的程度时，当需要表示一方超过另一方的程度时，可以用可以用much, a lot, a little,

18、 a bit, even, still等来修饰形容词比较级。注意等来修饰形容词比较级。注意: 比较级不比较级不能用能用very, so, too, quite等修饰。如：等修饰。如：He is much more serious than Sam.3) 形容词比较级后面往往用连词形容词比较级后面往往用连词than连接连接另一个比较的人或事物另一个比较的人或事物, 但在上下文明确但在上下文明确的情况下的情况下, 形容词比较级可单独使用。如：形容词比较级可单独使用。如：My sister is tall, but my aunt is taller.我姐姐个子高我姐姐个子高, 但我姑姑个子更高。但

19、我姑姑个子更高。1. Sam has _ (long) hair than Tom.2. Tom is _ (smart) than Sam.3. Tina is _(tall) and _(quiet) than Tara.4. Paul is _ (short) and _(heavy) than Pedro.5. Im _(funny) than Tara.6. Tara is _( serious) than Tina.7. Du Jia is _ (popular) than others in Class 19.8. Mr Cheng is _(outgoing) than Miss Qu.longersmartertallerquietershorterheavierfunniermore seriousmore popular more outing