八年级英语上册Unit3课件.ppt

,Unit3I am more outgoing than my sister.Period 2(2a2c)Sasha Qu,Study aims,I and my deskmate,Game,Liu Yifei has longer hair than YangMi.,Li Yong is more outgoing than Cheng long.,Pan Changjiang is shorter than Zhao Benshan.,2a.Listen.Are the words in the box used with“-er/ier”or“more”?,funny(run)fastfriendly(jump)high outgoing(work)hardsmart(get up)earlylazyhard-working,funny,smart,lazy,fast,high,hard,early,hard-working,comparative degree,tallnicefatheavyserious,taller,fatter,heavier,nicer,1)一般在词尾加_,3)重读辅元辅结尾,先_最后的辅音字母,再加_,4)以“辅音字母+y”结尾词，先改_为_,再加_,2)不发音e结尾的形容词直接加_,er,双写,y,i,r,er,er,more serious,5）多音节和部分双音节的形容词前加_,more,Do you know?,比较级规则变化口诀：,比较级，要变化，一般词尾加er。(long-longer)词尾若有哑音e,直接加r就可以。(nice-nicer)若是重读闭音节，单辅音字母要双写。(hot-hotter)辅音字母若加y,记得把y变i。(happy-happier)多音节更容易，词前加more 便可以。(outgoing-more outgoing),Exercises,写出下列单词的比较级。,taller,funnier,more serious,smarter,more outgoing,quieter,nicer,bigger,later,fatter,thinner,more quickly,Listen again.How are Tina and Tara different?,2b,is friendlier and funnier.,runs faster and jumps higherthan Tara.,is smarter than Tara.,is lazier than Tara.,gets up earlier than Tina.,表示两者之间程度不同：主语+谓语动词+adj./adv.比较级+than+对比成分表示两者之间程度相等：主语+谓语动词+adj./adv.+as+原级+as+对比成分,比较级句型结构,Tom,Nick,e.g.Is Tom smarter than Sam?,2c.Pairwork,Self check,请完成下列句子,1.格林先生比布朗先生更严肃。Mr.Greenis_(serious)thanMr.Brown.2.太阳比地球大。Thesunis_(big)thantheearth.3.吉姆和汤姆一样努力。Jimworksas_(hard)asJim.4.玛丽的头发和露西的一样长。Marys hair is as _(long)as Lucys.5.吉姆跑得慢，但是本跑得更慢。Jim runs _(slow).But Ben runs _(slow).6.第三单元比第二单元更难。Unit3is_(difficult)thanUnit2.,more serious,bigger,hard,long,slow,slower,more difficult,形容词和副词比较级的变化规则比较级句型结构,My harvest,Homework,1.Remember how to change comparative degree.,2 Write a short passage to compare you with your friend.,Goodbye!Thank you for listening!,Sasha Qu,