高中英语(外研版)必修一ppt课件：Module-5-Period-3

,Module 5,A Lesson in a Lab,Period 3,Grammar,语法专题课,形容词和副词的比较级,Module 5A Lesson in a Lab,高中英语(外研版)必修一ppt课件：Module-5-Period-3,【,课前热身,】,根据汉语提示完成下列句子。,1.,地球是月球的,49,倍大。,The earth,is _ _ _ _ _ the moon,.,forty-nine,times,as,large,as,【课前热身】forty-ninetimesaslargeas,2.,我认为长江大约是松花江的三倍长。,I think the Yangtze River is about _ _ _,_ the Songhua River.,3.,它变得越来越明亮。,It is getting _ _ _.,4.,我读的书越多,我知道的信息就越多。,_ _ books I read,_ _information I learn.,three,times,longer,than,brighter,and,brighter,The,more,the,more,2.我认为长江大约是松花江的三倍长。threetimesl,【,课堂诠解,】,1.,形容词,/,副词的原级比较,:,表示两者程度相同。常见句式结构,:,肯定句,as+,adj.,/,adv.,+as.,否定句,not as/so+,adj.,/,adv.,+as.,【课堂诠解】肯定句as+adj./adv.+as.,This watch is _ _ _ that one.,这块表和那块表一样昂贵。,as,expensive,as,This watch is _ _ _,It may not be a great suggestion.But before a_(good)one is put forward,well make do with it.,It may not be a great suggest,【,解析,】,better,。句意,:,这可能并不是一个好的建议。但是在提出更好的建议前,我们先勉强采纳它。短语,make do with,意为,“,勉强对付,凑合着用,”,。所以,本题将还未提出的建议与现有的建议进行对比,应该用形容词比较级,better,。,【解析】better。句意:这可能并不是一个好的建议。但是,2.,形容词,/,副词的比较级,:,(1),表示,A,超过,B,。用形容词,/,副词的比较级表示,She is _than my sister.,她比我妹妹年轻。,(2),表示,A,不如,B,。用句型,:less+,形容词,/,副词的原级,+than,表示,Jenny is _ _ _ her sister.,珍妮没有她妹妹聪明。,younger,less,clever,than,2.形容词/副词的比较级:youngerlessclev,【,名师指津,】,三点顿悟比较级的用法,(1),比较的对象要明确。,比较必须在同类事物之间进行。,My pen,is better than,yours,.,我的钢笔比你的钢笔好。,The weather,of Harbin is colder than,that,of Beijing.,哈尔滨的天气比北京的天气冷。,【名师指津】三点顿悟比较级的用法,(2),比较的范围要明确。,比较级中的被比较对象与比较对象如在同一范围内,须用,any other;,反之,用,any,。,He is taller than,any other,boy in his class.,他比他班里的其他任何一个男孩都高。,(2)比较的范围要明确。,Canada is larger than,any,country in Asia.,加拿大比亚洲任何一个国家都大。,Canada is larger than any coun,(3),掌握比较级前的修饰语。,常用来修饰比较级的程度副词有,:much,a little,a bit,a lot,even,still,far,by far,any,rather,。,Are you feeling,any,better today?,今天你感觉好点了吗,?,(3)掌握比较级前的修饰语。,She is,much,taller than she was last year.,她比去年高多了。,She is much taller than she wa,3.,形容词和副词比较级的特殊结构,:,(1),“,比较级,+and+,比较级,”,或,“,more and more(less,and less)+,原级,”,结构,表示,“,越来越,”,的意思。,_ _ _ youn,g people from China begin to,celebrate Fathers Day.,在中国,越来越多的年轻人开始庆祝父亲节。,More,and,more,3.形容词和副词比较级的特殊结构:Moreandmore,(2),“,the+,比较级,+of the two+,名词,”,结构,表示两者之间,更,。,_ _ of the two boys is my brother.,两个男孩中较矮的那一个是我弟弟。,The,shorter,(2)“the+比较级+of the two+名词”结构,(3),“,the+,比较级,.,the+,比较级,.,”,结构,表示,“,越,越,”,。,_ _ you work at your study,_ _ grades,you will have.,你学习越努力,你的成绩就越好。,The,harder,the,better,(3)“the+比较级.,the+比较级.,4.,倍数表示法,:,(1)A is,基数词,+times+the size(height,length,.)of B.,(2)A is,基数词,+times+as+,adj.,/,adv.,+as B.,(3)A is,基数词,+times+,比较级,+than+B.,(,注,:,用,times,表倍数通常用于三倍以上,两倍可以用,twice,或,double,。,),4.倍数表示法:,这座新楼是那座旧楼的四倍大。,The new building is four times _ _ _ the old one.,=The new building is four times _ _ _ the old one.,=The new building is four times _ _ the old one.,the,size,of,as,big,as,bigger,than,这座新楼是那座旧楼的四倍大。thesizeofasbiga,Its said that the power plant is now twice_,large as what it was.,【,解析,】,as,。句意,:,据说这个发电厂现在是以前的两倍大。英语中表示,A,是,B,的多少倍,可用,“,A+be+,倍数,+as+,形容词,/,副词原级,+as+B,”,结构。,Its said that the power plan,【,名师指津,】,掌握几个,“,比较,”,的常用结构,more than,超过,不止,;no more than,只,不多于,(,相当于,only);no more.than,两者都不,;not more.than,不像,那样,不如,;no less than,多达,至少,起码,;not less than,不少于,He is,no more than,an ordinary English teacher.,他只不过是个普通的英语老师。,【名师指津】掌握几个“比较”的常用结构,He is,no more,a writer,than,a painter.,他不是画家,也不是作家。,He is no more a writer than a,5.,“,否定词,+,比较级,”,表示最高级含义。,I have,never,seen a,stranger,bird.,这是我见过的最奇怪的鸟。,5.“否定词+比较级”表示最高级含义。,【,课堂小结,】,1.as.as,结构中,两个,as,之间必须用形容词或副词的原级。,2.,“,比较级,+and+,比较级,”,和,“,the+,比较级,the+,比较级,”,是比较级的两个特殊结构。,3.much,even,a lot,等是常用的比较级前的修饰语。,【课堂小结】,高中英语(外研版)必修一ppt课件：Module-5-Period-3,高中英语(外研版)必修一ppt课件：Module-5-Period-3,