八年级上unit3SectionA-2’

1、Unit 3I am more outgoing than my sister.原级原级是说明两个人物或事物的程度是说明两个人物或事物的程度是一样。是一样。比较级比较级是区分两个人物或事物的程是区分两个人物或事物的程度不一样。度不一样。This tree is as_ as that tree.The green bag is as _as the red.This pen is as _ as that pen.tallbiglong ￥20￥30cheapcheaperThe pink dress is cheap. The black dress is _the pink one. ch

2、eaper thanThe red apple is big.The green apple is _the red one.bigger than大多数形容词和副词有三个等级：大多数形容词和副词有三个等级：原级、比较级、最高级原级、比较级、最高级。一、一、形容词比较级的构成形容词比较级的构成 1.1.构成的规则变化构成的规则变化: : 2. 2.构成的不规则变化构成的不规则变化: :2. 构成的规则变化构成的规则变化:1) 单音节词和少数双音节词一般在词尾单音节词和少数双音节词一般在词尾 后加后加-er 构成比较级构成比较级 或或-est构成最高级构成最高级. 如：如： 原级原级 比较级比较

3、级 最高级最高级 cold colder coldest bright brighterbrightest young younger youngest2) 以字母以字母 e 结尾的词只加结尾的词只加 r 或或-st 构成构成 比较级比较级和和最高级最高级。 原级原级 比较级比较级 最高级最高级 nice nicer nicest fine finer finest large larger largest3) 重读闭音节词末尾只有一个辅音字母重读闭音节词末尾只有一个辅音字母时时, 先双写这个辅音字母先双写这个辅音字母, 再加再加-er或或-est。如如: big bigger biggest

4、 thin thinner thinnest 4) 以以“辅音字母辅音字母+ y”结尾的双音节词，结尾的双音节词， 先改先改y为为i, 再加再加-er或或-est。如：。如： easy easier easiest happy happier happiest5) 多音节词和部分双音节词在词前加多音节词和部分双音节词在词前加more 或或most。如：。如： delicious more delicious most delicious interesting more interesting most interesting importantmore important most impo

5、rtant1. 1. 构成的不规则变化构成的不规则变化: :e.g. good / well better best bad / badly worse worst many / much more most little less least far farther / further farthest/ furthest oldolder/elderoldest/eldest old fat young ugly high low light white sunny hot cool early delicious friendly important hungry healthy out

6、going goodwell little olderfatteryoungeruglierhigherlowerlighterwhitersunnierhottercoolerearliermore deliciouslessbettermore outgoinghealthierhungriermore importantfriendlier 讲述某人或某物自身情况时用原级。讲述某人或某物自身情况时用原级。 基本句型：基本句型：主语主语+ 谓语谓语 + 形容词形容词/副词原级副词原级 +. He is very old now. 他现在很老了。他现在很老了。 They run quite

7、fast. 它们跑得相当快。它们跑得相当快。 The weather looks rather bad. 天气看上去相当糟天气看上去相当糟 I am so happy. 我是如此的快乐。我是如此的快乐。 表示两者之间没有差别时表示两者之间没有差别时,使用句型：使用句型： 主语主语(第一个人物第一个人物) + 谓语动词谓语动词 + as + 形容词形容词/副副词原级词原级 + as + 第二个人物第二个人物 +. 如：如：He is as excited as his younger sister. 他和他妹妹一样兴奋。他和他妹妹一样兴奋。 Lily runs as fast as Lucy.跑

8、得像跑得像一样快。一样快。 They picked as many apples as the farmers (did). 他们摘的苹果和农民一样多。他们摘的苹果和农民一样多。表示第一个人比不上第二个人时表示第一个人比不上第二个人时,使用句型使用句型: 主语主语(第一个人物第一个人物) + 谓语动词谓语动词(否定式否定式) + as / so + 形容词形容词/副词原级副词原级 + as He is not so / as excited as his younger sister. 他没他妹妹那么兴奋。他没他妹妹那么兴奋。 Lily doesnt run as fast as Lucy.

9、They didnt pick so / as many apples as the farmers (did). 他们摘的苹果不如农民多。他们摘的苹果不如农民多。 讲述两者有差异讲述两者有差异, 第一个人物超过第二个人第一个人物超过第二个人 物时用比较级。物时用比较级。基本句型：基本句型：主语主语(A)+谓语动词谓语动词+形容词形容词/副词比副词比较级较级+than+主语主语(B)+. e.g. A modern train is faster than a car. 现代的火车比轿车快多了。现代的火车比轿车快多了。 This book didnt cost me more than tha

10、t one. 这本书花费我的钱不比那本多。这本书花费我的钱不比那本多。 在形容词比较级前还可用在形容词比较级前还可用much, even, still, a little来修饰来修饰, 表示表示“的多的多”, “甚至甚至”, “更更”, “一些一些”。e.g. 1) This city is much more beautiful than before. 2) Shes a little more outgoing than me. 3) Its a little colder today. 3.“比较级比较级and比较级比较级”意为意为“越来越来越越” 。多音节比较级用。多音节比较级用“m

11、ore and more形容词原级形容词原级”形式。如：形式。如：Its getting worse and worse. The group became more and more popular. 4. “Which / Who is + 比较级比较级？”比较比较A、B两事物两事物, 问其中哪一个较问其中哪一个较时时用此句型。如：用此句型。如：Which T-shirt is nicer, this one or that one? Who is more active, Mary or Kate?Which one is more popular among students, goi

12、ng to concerts or going to movies?5. 使用形容词比较级时需注意以下几点：使用形容词比较级时需注意以下几点：1) than后面接代词时后面接代词时, 一般要用主格形式，一般要用主格形式， 但在口语中也可使用宾格形式。但在口语中也可使用宾格形式。 如：如：My brother is taller than I/me. 2) 当需要表示一方超过另一方的程度时，当需要表示一方超过另一方的程度时，可以用可以用much, a lot, a little, a bit, even, still等来修饰形容词比较级。注意等来修饰形容词比较级。注意: 比较级不比较级不能用能用

13、very, so, too, quite等修饰。如：等修饰。如： He is much more serious than Sam.3) 形容词比较级后面往往用连词形容词比较级后面往往用连词than连接连接另一个比较的人或事物另一个比较的人或事物, 但在上下文明确但在上下文明确的情况下的情况下, 形容词比较级可单独使用。如：形容词比较级可单独使用。如：My sister is tall, but my aunt is taller.我姐姐个子高我姐姐个子高, 但我姑姑个子更高。但我姑姑个子更高。4) 进行比较的人和物必须是同一类。进行比较的人和物必须是同一类。 My books are mor

14、e than yours. I have more books than you. old fat young ugly high low light white sunny hot coololderfatteryoungeruglierhigherlowerlighterwhitersunnierhottercooler1. Im tall but my sister is _(short).2. My mother has long hair, and my sister has _ (long) hair.3.This little baby is _ (outgoing) than

15、that one.shorterlongermore outgoing 4. In some ways we look the same, in some ways we look _(不同不同).5. Ann is a very _(安静的安静的) girl, she hardly makes noise.differentquiet1. The twins _ lovely girls.A. are allB. are bothC. both are2. I like drawing and I am good _ it.A. in B. on C. at3. That box is _

16、than others.A. more heavierB. heavyC. much heavier三、单项选择三、单项选择B C C 4. She is three years _ than I am. A. oldB. more oldC. older5. I think a good friend should make me _. A. laughB. laughingC. to laughC A 6. Lucy is very short, but she is _ than her sister. A. shorter B. longer C. taller D. older 7.

17、 Frank is _ friendly than his brother. A. a little more B. a few more C. much D. a little 8. Sam is _at Chinese than Jim. A. good B. well C. better D. gooder CAC 9. This one is too large. Can you show me a _one? A. larger B. large C. small D. smaller 10. Do you think March is _than January? Yes, its

18、 _ warmer. A. better, a little B. well, much C. worse, very D. nicer, quite DA11. - Which of the caps will you take? -Ill take _. one for my father the other for my brother. A. neither B. both C. all (2010.长沙中考长沙中考)12. Sam looks like his Dad. They are _ tall. A. either B. any C. all D. both ( 2009.河北中考河北中考 )BD13. There are many tall buildings on _ sides of the street. A. either B. all C. both (2