形容词(比较级和最高级).ppt

形容词（比较级和最高级）,（一） 原级 as+形容词原级+as Tom is as tall as Jack. He speaks English as fluently as you. My computer is not so/ as expensive as yours. 注意：1. almost, exactly, just, quite, nearly, half 等词可用来加强asas结构的语气。 This book is just as interesting as that one.,2. 几种变化形式： as much + 不可数名词 + as There is as much water in this bottle as in that one. as many +可数名词复数 + as Bob has read as many books as Mary. as + 形容词 + 不定冠词 + 可数名词单数 + as German is as difficult a language as Chinese. as + 形容词 + 不可数名词 + as Bread is as important food as rice.,“as形容词(a/an)名词as”表示同级比较，注 意中间的形容词和名词并列时各自所在的位置。 It is generally believed that teaching is as much an art as science. 一般认为教学如同科学一样是一门艺术。,（二）比较级 形容词比较级+than John works harder than Mary. This picture is more beautiful than that one. This book is better than that one.,注意：1.形容词比较级的规则和不规则变化。 2. much, still, even, far, by far, a lot, a bit, a great deal等词可置于比较级前,加强语气。 Could you drive a bit more slowly? 3.以-or结尾的含有比较意义的形容词后接to不接than。如superior, inferior, senior, junior 等。 He is 4 years senior to me.,高考链接 【2011上海春招28】Wed be exposed to a lot _ pollution if you moved to a town with pure water and air. A. more B. most C. less D. least 【解析】选C。考查形容词比较级的用法。句意为“如果你们搬到空气清新、水质纯净的小镇去，你们受到的污染将会少得多。” 空格前的a lot修饰比较级more或less。,4. 几种特殊结构 （1）the +比较级， the +比较级 “越，越” The higher he climbs, the farther he will see. (climb，see) The more you use English, the more you will want to learn it. (use，want) （2）比较级 +and +比较级 “越来越” Our country is becoming stronger and stronger. My school is becoming more and more beautiful.,（3）主语 + 比较级 + than any (other) China is larger than any country in Africa. China is larger than any other country in Asia. （4）倍数的表达 倍数 + as + 形容词原级 + as This room is three times as large as that one. 倍数 + 形容词比较级+ than This room is twice larger than that one. 倍数 + the size/ length/ weight/ height/ width /+of This room is three times the size of that one.,（三）最高级 the +形容词最高级 +比较范围 He is the tallest boy in our class. This is the most beautiful city Ive ever visited.,注意： 1. 形容词最高级前要加定冠词。 She is the most beautiful girl in our class. 2. 形容词最高级前有时加不定冠词，或不加冠词，不表示比较，表示“非常”。 He is a most clever policeman.,3. 最高级可被序数词以及much, by far, nearly, almost, by no means, not quite等词语修饰。 He is by far the most popular singer in our pub. 4. not, never之类的否定词与形容词的比较级连用，表示最高含义。 How beautiful she is! I have never seen a more beautiful one. 5. 有些表示“最高程度”的形容词，如 excellent, extreme, perfect, favorite 等没有最高级，也不用比较级。,高考链接 【2011全国卷17】Mr. Stevenson is great to work for I really couldnt ask for a _ boss. A. better B. good C. best D. still better 【解析】选A。考查比较级的否定用法。句意为“为Stevenson先生工作真好，我实在找不到比他更好的老板了。”否定词couldnt与better连用，表示“非常好”，等于最高级。,注意比较等级结构的修饰语： 修饰原级的词有very，so，too，quite，rather，fairly， pretty，this，that等。 修饰比较级的词有a little，a bit，slightly，any，much，a lot，a great deal，far，by far，rather，even，still，yet等，还有倍数词、基数词、分数、百分数等。 修饰最高级的词有by far，much，almost等。 After two years research，we now have a far better understanding of the disease. 研究两年之后，现在我们对这种疾病有了更好的理解。,比较等级和冠词：一般来说，比较级前不用冠词，形容 词的最高级前要加定冠词。但是若表示“两者中较的”时或者是“越就越”(the比较级，the比较级)这一句型时，则用定冠词。 The more careful you are，the fewer mistakes youll make. 你越仔细，犯的错误就越少。 The taller of the two boys is my brother. 那两个男孩中高点儿的是我弟弟。,高考链接 1.(2012全国卷29)This restaurant wasnt _ that other restaurant we went to. A. half as good as B. as half good as C. as good as half D. good as half as 【解析】选A。考查形容词比较级。句意:这个餐馆不及我们去的另一家餐馆一半好。此处考查的是“倍数+as+adj.+as.”的结构。故选A。,2.(2012北京28)Many people have donated that type of blood; however, the blood bank needs _. A. some B. less C. much D. more 【解析】选D。考查词义辨析。句意:许多人捐了那种血型的血, 但是血库需要更多的血。由句意可知,是需要更多的血, 表示对比的含义, 应用more。some一些; less更少的; much许多。,3.(2012福建32)Can you lend me the book Gone with the Wind? Sorry. I returned it to the library just now. Maybe it is still _. A. available B. affordable C. acceptable D. valuable 【解析】选A。考查形容词。句意:你能不能借给我飘这本书?抱歉。我刚把它还回图书馆。或许现在你还能借到。available可获得的; affordable支付得起的; acceptable可接受的;valuable有价值的。,4.【2011四川 12】How was your recent trip to Sichuan? Ive never had _ one before. A. a pleasant B. a more pleasant C. a most pleasant D. the most pleasant 5.【2011 陕西 17】The new stadium being built for the next Asian Games will be _ the present one. A. as three times big as B. three times as big as C. as big as three times D. as big th