牛津译林版八年级英语上Unit3-grammar课件（30张PPT）.ppt

1、8A Unit 3A day outGrammarLily MillieSandy Lily is taller than Millie.Sandy is taller than Lily.Sandy is the tallest of the three.zxxkLook at these girls,who is the tallest?Andy TomMaxWho is the tallest?Max is as tall as Tom.Tom is as tall as Andy.as as和一样1、We use asas to say that people or things ar

2、e the same in the same way.我们用asas结构表示两个人或事物在某方面程度相同。Mr Wu is as happy as Mr.Li.as+形容词原级+asTom jumps as high as Daniel.as+副词原级+as()1.I think swimming is dancing.A.more interesting as B.so interesting asC.as interesting than D.as interesting as()2.John is much shorter than his sister,but he jumps she

3、 does.A.as good as B.as best asC.as high as D.as higher as3.This horse is as(strong)as that one.4.Mary writes as(careful)as Lucy.Lily MillieSandy Lily is not as tall as Sandy.Millie is not so tall as Lily.Look at these girls,who is the tallest?not asas=not soas不如2、We use not asas/not so as to say th

4、at people or things are not the same in some ways.我们用not asas或 not so as结构表示A在某方面不如B。Mr Wu is not as happy as Mr.Li.Mr Wu不如Mr Li 快乐。not as/so+形容词原级+asTom does not jump as high as Daniel.Tom 不如Daniel 跳得高。not as/so+副词原级+as()1.The classroom is clean it was yesterday.Sorry,I forgot to clean it.A.as,as B

5、.so,as C.not so,as D.more,than()2.Daniel plays chess,if not better than,David.A.as well B.as well as C.so well D.so well as地理不如历史难，但是和历史一样重要。Geography is not as difficult as History,but it is as important as History.Lily MillieSandyLily is not as tall as Sandy.Millie is not so tall as Lily.not asas=

6、not soas不如比较级+than比=Lily is shorter than Sandy.=Sandy is taller than Lily.=Lily is taller than Millie.=Millie is shorter than Lily.拓展1：同级比较/比较级的转换：e.g.1)Im not as tall as he is.=Im shorter than he is.=He is taller than I am.2)Nanjing is not as big as Shanghai.=Nanjing is smaller than Shanghai.=Shang

7、hai is bigger than Nanjing.3)Skiing isnt as interesting as swimming.=Skiing is less interesting than swimming.=Swimming is more interesting than skiing.拓展2：多音节形容词的比较等级比较级:more+adj+than 往上比less +adj+than 往下比最高级:the most+adj往最上面比the least+adj往最下面比e.g.English is more interesting than Maths.=Maths is le

8、ss interesting than English.=Maths is not as interesting as English.()1.Tom thinks French is difficult than Chinese.A.much B.least C.less D.little()2.The shopkeeper showed her many books and she chose expensive one.A.less B.least C.the less D.the least3.Singing is not as interesting as dancing.Danci

9、ng is than singing.Singing is than dancing.zx、xk。拓展3：最高级/比较级/同级比较的相互转换：Shanghai is the biggest city in China.=Shanghai is bigger than any other city in China.=Shanghai is bigger than the other cities in China.()Beijing is bigger than in Japan and it is bigger than in China.A.any city,the other city

10、B.any other city,any cityC.any city,any other cityD.any other cities,any other cityDo some exercises in class1.Jack isnt as short as Mike.(同义句)Jack is _ _ Mike.Mike is _ _Mike.2.I think skiing is dangerous.(否定句)I _ think skiing _ dangerous.3.I think diving is more exciting than swimming.(同义句)I think

11、 swimming is _ _ than diving.4.Tom is the cleverest student in his class.(同义句)Tom is _than _ _student in his class.Tom is _than _ _students in his class.6.My best friend Betty is slim.I am slim too.(合并）My best friend Betty is _ _ _ _ _.shorter thanTaller thandontislessexcitingclevererany otherthe ot

12、heras slim as I amclevererReflexive pronouns（反身代词）We use reflexive pronouns when the subject and the object are the same person.当主语和宾语是同一个人时，我们可以使用反身代词1.Daniel taught himself how to learn English.eg.2.She enjoys herself.反身代词反身代词构成用法练习构成情况人称第一人称第二人称第三人称单数复数myselfourselvesyourselfyourselvesthemselvesi

13、tself himself herself构成用法练习构成情况1、反身代词单数词尾都有-self，复数词尾都有-selves。2、第一人称和第二人称反身代词都是由形容词性物主代词-self或-selves构成。第三人称都由人称代词宾格-self或-selves构成。3、每个反身代词都表示“自己”，如 myself我自己，themselves他们自己，等等。构成用法练习用 法构成用法练习一、非强调用法这种用法通常表示反身代词与句中的主语是同一人,即动作的发出者和动作的承受者是同一人。它在句中作宾语，不能省略，否则该句是一个意义不完整的错句。(1)Jane is too young to look

14、 after herself.Jane 太小了无法照顾自己。(2)I teach myself English.我自学了英语。(3)He fell off the bike and hurt himself.他摔下自行车伤到了自己。用 法构成用法练习二、强调用法反身代词在强调用法中表示强调，即用来加强某个名词或者代词的语气，可译成“亲自”、“本人”或“这样事情本身”此时，它在句中作同位语。即使去掉，也不影响句子的完整性。例如：(1)The story itself is interesting enough.这个故事本身就够有趣了。(2)I myself did the homework la

15、st night.昨晚是我自己做了家庭作业。用 法构成用法练习三、与by搭配当反身代词与by搭配时，意为：单独地，没有人帮助的。(1)The little boy drew the picture all by himself.这个男孩全靠自己画了这幅画。(2)He can swim all by himself.他能独自一个人游泳.练 习1We cant only think of _（we），we should think of others2Students should be strict with _ （they）3Did they enjoy _ （them）in the part

16、y last Sunday？4Help _ （you）to some vegetables，Jim and Jack5The artist _（he）will come to our school next week用所给代词的适当形式填空。ourselvesthemselvesthemselvesyourselves himself构成用法练习练 习6You cant leave your daughter by _（she）7The cat in the mirror is _（it）8I bought _（I）a new dictionary the day before yesterd

17、ay9I _（my）agree with you10The little boy is only four，he could wash _（he）and get dressedherselfitselfmyselfmyselfhimself构成用法练习What happened at South Hill?1.You can go and enjoy_ now.2.Oh no!Simon is trying to pull _to the rocks.4.You are lucky not to hurt_.5.We really enjoyed_.6.They kept the secret

18、 to _.yourselveshimselfyourselfourselvesthemselvesRemember these phrases.1.help oneself to 请吃2.enjoy oneself 过得愉快3.teach oneself=learnby oneself 自学4.do sth.by oneself（alone/on ones own）独自（亲手）做某事5.Say to oneself自言自语6.dress oneself/wash oneself7.look after oneself8.the thing itself 事情本身1.和一样2.不如3.过得愉快

19、4.尽力做某事5.把某人拉上岩石6.弄伤自己7.面面相觑8.互相保守秘密9.请吃10.自学11.独自做某事12.自言自语asasnot as/soasenjoy oneselftry to do sth.pull oneself up the rockshurt oneselflook at each otherkeep the secret to oneselfhelp yourself toteach oneself=learn by oneselfdo sth.by oneselfsay to oneself1.李老师像朋友一样和蔼。2.这本书不如那本书有趣。（两种）3.这把尺和那把尺一样长。4.读书不如玩电脑游戏有趣。（两种）5.Tom自学了英语。（两种）6.你们昨天在公园里玩得高兴吗？7.这个小孩足够的可以自己照顾自己。8.请不要在课堂上自言自语。9.这个4岁的男孩会自己穿衣服了。10.Daniel 和Lucy年纪一样的。Thank you Goodbye