1、用以修饰名词，表示事物的用以修饰名词，表示事物的特征特征的词。的词。e.g.long,empty,cheap,hungry,etc.在句中作在句中作定语定语、表语表语、宾语宾语补足语补足语等成分等成分*.He is a good student.I have something important to tell you.当形容词修饰由当形容词修饰由some-,any-,no-,every-构成的不定代词时构成的不定代词时,形容词要放在这些形容词要放在这些不定代词的之后不定代词的之后.e.g.Is there anything interesting in todays newspaper?T
2、he trees turn green in spring.We are alone on the island.只能作表语，不能作定语的形容词只能作表语，不能作定语的形容词你能说出几个？你能说出几个？alone afraid awake asleep alive able形容词和宾语一起构成形容词和宾语一起构成复合复合宾语宾语e.g.We must keep the classroom clean.He made us happy.Colour it green.LetLets fill s fill in the in the blanks,blanks,词词 尾尾 变变 化化原级原级比较
3、比较级级最高最高级级单音节词在词尾加单音节词在词尾加-er(比较比较级级)或或-est(最高级最高级)tall hard 以不发音的以不发音的e接尾的词加接尾的词加r或或stlargewide以重读闭音节结尾的词以重读闭音节结尾的词,应双应双写辅音字母再加写辅音字母再加er或或estbig hot 以辅音字母加以辅音字母加y结尾的词变结尾的词变为为i再加再加er,或或esthappy dry 多音节词和多数双音节词在多音节词和多数双音节词在其前面加其前面加more 和和most difficult popular 1.1.规则变化规则变化tallertallest harderhardestl
4、argerlargestwiderwidestbiggerbiggesthotterhottesthappierhappiestdrierdriestmore difficultmost difficultmore popularmost popular原级原级goodwellbadillmanymuchlittlefarold比较级比较级最高级最高级2、不规则变化、不规则变化bestbetterworseworstmoremostlessleastfarther farthestfurther furthestolder oldestelder eldestTom is as tall as
5、 Mike.as+形容词原形形容词原形+asThere are as many students in our school as yours.I dont have as much money as you do.第一个第一个as后的形容词做定语修饰名词后的形容词做定语修饰名词.将该将该名词及有关修饰语全列在第一个名词及有关修饰语全列在第一个as后后.否定否定 not as+形容词原形形容词原形+as “和和 不一样不一样”或或 not so+形容词原形形容词原形+as “不及不如不及不如 Tom is not as tall as Mike.Tom is not so tall as Mi
6、ke.This truck is big enough to carry 5 tons.so+形容词原级形容词原级+that丛句丛句 such+名词名词that丛句丛句He is so big that he cant enter the room by the door.too+原级原级+to do sth.He is too young to join the army.形容词原级形容词原级+enough to do sth.倍数词倍数词/half+as+形容词原形形容词原形+as Tom is three times as old as Mike.My school is twice/h
7、alf as large asYours.比较级比较级+than This bridge is longer than that one.Our school is larger than theirs.倍数词倍数词+比较级比较级+than Our school is three times larger than theirs.“The+比较级比较级，the+比较级比较级”“比较级比较级+and+比较级比较级”The smaller the house is,the less it will cost us the heat.In spring,the days are getting lo
8、nger and longer.the+比较级比较级+ofJhon is the taller of the two.表示两者之间的选择，可使用表示两者之间的选择，可使用“Which is+比较级，比较级，or?”表示不及另一方时，使用表示不及另一方时，使用“less+原级原级+than”Which is longer,this one or that?This park is less beautiful than that one.one of the+最高级最高级+名词复数名词复数最高级+of(in/among)This is/was the最高级最高级+名词名词+that定语从句定语从
9、句Lu Xun is one of the greatest writers last century.This is the worst film that I have seen these years.Of all the movie stars,I think Zhang Ziyi is the best.掌握几种同义句转换掌握几种同义句转换 1.He is taller than I.=I am not as/so tall as he.2.I study harder than Li Ming.=Li Ming doesnt study as hard as I.3.He is t
10、aller than any other student in his class.=He is taller than the other students in his class.=No one/Nobody is taller than he in his class.=He is the tallest(student)in his class.4.I prefer maths to English.=I like maths better than English.5.The box is too heavy for him to carry.=The box is so heav
11、y that he cant carry it.=The box is not light enough for him to carry.注意点注意点1.1.形容词最高级前一定要用形容词最高级前一定要用the，副，副词最高级前可省略词最高级前可省略2.2.在比较级中为了避免重复，在在比较级中为了避免重复，在than后常用后常用one，that，those等词来替代等词来替代前面提到过的名词前面提到过的名词 *This pen is shorter than that one.*The weather here is warmer than that of Shanghai.3.用用or连接两
12、项需作比较的内容时，连接两项需作比较的内容时，须用比较级；若须用比较级；若or连接三项或三项连接三项或三项以上的内容时，则须用最高级以上的内容时，则须用最高级 *Who is taller,Mary or Jane?*Which is biggest,the sun,the moon or the earth?1.The bread is _ than these cakes A.very delicious B.much delicious C.more delicious D.as delicious2.Lin Tao jumped _ in the long jump in the sc
13、hool sports meeting A.far B.farther C.farthest D.quite far3.When they met in the hotel.They talked and laughed _A.happily B.happy C.happier D.happiestCCA 4.In our city its _ in July,but it is even _ in August A.hotter hottest B.hot hot C.hotter hot D.hot hotter 5.Hainan is a very large Island.It is
14、the second _ island in china.A.large B.larger C.largest D.most largest 6.An elephant is _ than a tiger.A.heavy B.very heavy C.the heaviest D.heavierDCD 7.A horse is _ than a dog.A.much heavy B.more heavier C.much heavier D.more heavy 8.Emma always makes a lot of mistakes.She is _.A.care B.careful C.
15、carefully D.careless 9.Which subject is _,physics or chemistry?A.interesting B.most interesting C.more interesting D.the most interesting CDC10.He is _ enough to carry the heavy box.A.strong B.stronger C.much stronger D.the strongest 11.Li lei often talks _ but does _ so everyone says he is a good boy.A.less more B.few much C.more little D.little many AA
