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新目标英语八年级上第3单元知识点总

Unit 3I’m more outgoing than my sister话题:本单元以描述朋友外表和个性特征,比较个人与朋友间的差异为题材,增进朋友间的相互了解。

教学目标:使学生掌握形容词副词的比较级运用比较级来描述个人与朋友间的差异知识点1.形容词、副词比较级1规则变化○A.直接在词尾加-erfew-fewer long-longer small-smaller light-lighter tall-tallerB.以不发音的字母e结尾,直接加rNice-nicer large-largerC.以重读闭音节结尾并且末尾只有一个辅音字母,双写该辅音字母加erthin-thinner big-bigger hot-hotter wet-wetter red-redderD.以辅音字母+y结尾的,变y为i加erheavy-heavier easy-easierE.多音节和部分双音节词more +该词2不规则变化○有少数形容词、副词的比较级和最高级是不规则的,必须熟记。

good好的well好;(身体)好的, better更好的best 最好的bad,badly糟糕的,糟糕地/ill(身体)不舒服的worse更糟糕的,更糟糕地;(身体)更不舒服的worst最糟糕的,最糟糕地;(身体)最不舒服的many许多的(可数)/much许多的(不可数);非常more更多的;更most最多的;最little少的less更少的least最少的far远的;远地farther更远的;更远地further/进一步的(地)farthest最远的;最远地furthest最深刻的(地)old老的older年龄较大的;较旧的oldest年龄最大的;最旧的elder仅表兄弟姊妹之间的长幼eldest仅表兄弟姊妹之间的长幼常用句型1比较级+than当than前后所使用的动词形式相同时,通常用助动词代替后面的动词,该○动词或助动词可以省略。

Alice writes more carefully than I (do).This story is __________ interesting)than that one( is )2比较级+and+比较级或者more and more +原形意为越来越……○Spring is coming, and days are getting longer and longer.春天来了,白天越来越长了。

The little girl is more and more beautiful.这个小女孩越来越漂亮了。

3the+比较级, the+比较级意为越……就越……○The more money you make, the more you spend.钱你赚得越多,花得越多。

The sooner, the better.越快越好。

4表示对两个人或事物进行对比,并进行选择常用句型,Which/what/who +be+形容词比较○级,A or B?Who is taller, Tom or Jack?Which is better, the blue one or the yellow one?表示三者Which is the largest, Beijing, Shanghai, Suzhou?5同一类人或物在某一范围进行比较时,常用形容词比较级+than any other+名词单数意○为……比任何……都……Is Yangtze River longer than any other river in China?Shanghai is larger than any other city in China.等于the +形容词最高级+可数名词单数+of/in6当表示……是两者中更……的时,常用the +比较级+of the two the不可缺少○Tom is the thinner of the two.This boy is the smarter of the two.7和……一样……As+比较级原形+as否定not as+比较级原形+as○not so+比较级原形+as修饰形容词比较级的副词有 a little much even练习1)天越来越长了。

________________________________________________________2)她越来越漂亮了。

______________________________________________________3)天空越来越蓝了。

_____________________________________________________4)糖放的越多,水会越甜。

_________________________________________________5)污染越多,人就越容易生病。

_____________________________________________2.附加疑问句反意的附加疑问句,由肯定陈述句加简短附加疑问句构成,用于向对方证实某事eg.It’s a nice day, isn’t it?这是个好天气,不是吗?He isn’t a bad boy, is he?他不是个坏孩子,是吗?注意:在回答附加疑问句时,如果事实是肯定的,用Yes回答,翻译为,不。

如果事实是否定的,用No回答,翻译为是。

Eg. She is beautiful ,isn’t she?她很漂亮,不是吗?Yes, she is.不,她很漂亮。

No, she isn’t.是,她不漂亮了。

练习翻译下列句子:1)Thecat is so lovely,isn’tit?____________________________________________________2)Thedesk isn’t that dirty,isit?____________________________________________________3)Jacklikes playing basketball,doesn’the?___________________________________________4)Thewater isn’t so deep,isit?_____________________________________________________5)Thesky was blue in the pastdays,wasn’t?__________________________________________3.hard-working与work hardhard-working adj.努力工作的work hard v.+adv.努力工作Eg. Mary is a hard-working girl, she works hard every day.玛丽是努力学习的女孩,她每天都努力工作。

as……as 和……一样Eg.1)This apple isas red as that one.这个苹果和那个苹果一样红。

2)Mary’s bag is as new as Tom’s.玛丽的书包和汤姆的书包一样新。

3)Lucy is as quiet as Lily.露西和李丽一样安静。

4)She is as tall as Jack.她和杰克一样高。

5)She is as slim as I.她和我一样苗条。

注意否定形式not as ……as或者是not so……as1)Thisapple is not as red as that one.或者This apple is not so red as that one.1)Mary’s bag is not as new as Tom’s.或者Mary’s bag is not so red as that one.3)Lucy is not as quiet as Lily.或者Lucy is not so quiet as Lily.4)She is not as tall as Jack.或者She is not so tall as Lily.5)He is not as old as I.或者He is not so old as I.练习1)吉姆和他哥哥一样高。

_______________________________________________________2)吉姆没有他哥哥高____________________________________________________________3)这个杯子和那个杯子一样漂亮。

________________________________________________4)这个杯子没有那个杯子漂亮。

__________________________________________________5)我家电视机和李磊家的电视机一样新。

___________________________________________4.as long as只要1)用于as……as句型中,表示像……一样长Eg. My books are as new as yours.我的书和你的一样新。

2)表示时间,意思是达……之久Eg. You can keep the book as long as you like.这本书你想借多久就借多久。

3)表示条件,意思是只要,引导条件状语从句Eg. We will go as long as the weather is good.只要天气好我们就去。

练习1)只要我来了就给你说。

__________________________________________________________2)只要他去派对,玛丽就很高兴了。

_______________________________________________3)只要用心做就行了。

___________________________________________________________4)只要努力,就会有所收获。

____________________________________________________5)只要老板同意,我就过来。

_____________________________________________________5.though尽管注意though和but不能同时出现在一个句子中Eg.1)Though he is little, he knows a lot.或者He is little, but he knows a lot.虽然他很小,但是他知道很多xx。

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