2022年八上unit4知识点整理 .pdf
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1、八上 unit4 What s the best movie theater? 知识点总结一.形容词和副词的比较级和最高级的变化方法如下(1) 符合规则的:情况加法例词一 般 情 况直接加 -er ; -est all-taller-tallest 以 e 结尾的词加 r ; -st nice-nicer-nicest 以“ 辅音+y” 结尾的词变 y 为 i 再加-er ; -est dry-drier-driest heavy-heavier-heaviest 以一个辅音字母结尾的词辅音字母双写,再加-er ; -est thin-thinner-thinnest 多音节和部分双音节单词在
2、词前加more ; most more delicious most delicious 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页,共 10 页(2)几个不规则的形容词和副词的比较级和最高级如下表:二形容词副词比较级最高级的用法(1)和冠词连用the 形容词原级,指一类人或物the 形容词比较级,指两者中“ 较的” 的那一个,eg. the younger of the two a/ an 形容词比较级eg. The pen is expensive. I want a cheaper one. a most形容词最高级“ 非常”eg
3、. a most beautiful city ( 2 ) 相关结构1) 原级比较:肯定句as.as ., 否定句 not so / as.as .2) 比较句:比较级 than . 或 more (less) .than .The furniture in this shop is less beautiful than that in that shop.(注意代词 that 的用法 ) 3) 比较级and比较级或 more and more比较级“ 越来越 ”richer and richer, more and more interesting 4) The more., the mo
4、re. “越, 越”The more you look at the picture, the better you will like it. 原级比较级最高级good , well better best bad , ill worse worst many , much more most little less least far farther / further farthest / furthest 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页,共 10 页5) 比较级 than any other n. (单)(适用于范围
5、一致时)(all) other n.(复)any n.(单) (适用于范围不一致时)He is taller than any other student / all other students in his class. any student in my class. 6) 倍数表达法。A is three(four, etc.)times the size(height, length etc.)of B. A is three(four, etc.)times as big(high, long, etc.)as B. A is three (four, etc.)times big
6、ger(higher, longer, etc.)than B. 用 times 表倍数通常用于三倍以上,两倍可以用twice 或 double. The new building is four times the size (the height)of the old one. 这座新楼比那座旧楼大三倍(高三倍)。Asia is four times as large as Europe. 亚洲比欧洲大三倍。Your school is three times bigger than ours. 你们的学校比我们的学校大三倍。7) more than 结构,其意往往是 rather tha
7、n,可译为 “ 是而不是 ” 或颠倒词序译作 “ 与其说是 ,不如说是 ” 。That little girl is more tired than hungry. 那个小姑娘是累了而不是饿了。She is more a mother than a wife或 She is more of a mother than a wife. 她是贤妻,更是良母。8) A is to B what C is to D A 和 B 的关系就像 C 和 D 的关系Air is to man what water is to fish. 空气 对于人类就像水和鱼的关系。9) no more than= onl
8、y “ 只不过 ” ,言其少not more than=at most “ 不多于 ” ,“ 至少” ,指事实。no more than 和一样不 not more than 不比更no less than= as much as “ 多达”no fewer than= as many as 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页,共 10 页eg: I have no more than five yuan in my pocket. 我口袋里的钱只不过5 元。I have not more than five yuan in m
9、y pocket. 我口袋里的钱不多于5 元。He is no richer than I. 他和我一样穷。He is no less determined than you. 他的决心不亚于你。(no less determined than 等于“ 其决心不亚于你 ” ,言其大 ) He is not less determined than you. 他的决心不比你小。(not less determined than 等于“ 其决心不小于 ” , 无言其大或小的含义) 10) 最高级 of/ in/ among.He is the tallest of the three/ among
10、 them/ in is class. 三相关词语辨析 /课文知识点详解1. so和 such A)so that 与 such that 的区别。so + 形容词 / 副词 + that so + 形容词+ a(n)+ 单数可数名词+ that so + many / much / little / few + 名词 + that such + a(n)+ 形容词+单数可数名词+ that such + 形容词 + 不可数名词+ that such + 形容词 + 复数名词+ that 注意: 但当 little 表示“ 小” 时用 such。如: These are such little
11、 boys that they cant dress t hemselves. 下列 so的用法是错误的:so a difficult problem, so difficult problems, so hot weather。B) some/ any/ every/ no/ each/ all/ another/ several/ few/ many/ one/ two +such+n. eg. no such word 3. be too much + n. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页,共 10 页be much
12、too+ adj. be too much for sb. 对太过分了4. cant be too +adj.= cant be +adj.+ enough “ 无论都不为过 ”You can never be careful enough. = You can never be too careful.你越小心越5. for example,such as和 like 都可用来举例,但用法有所不同。for example 作“例如”讲时,一般只以同类事物或人中的“一个”为例,作插入语,用逗号隔开,可置于句首、句中或句末。He,for example,is a good student. 例如
13、,他就是个好学生。such as也作为“例如”讲,用来列举同类人或事物中的几个例子。Boys such as John and James are very friendly. 像约翰和詹姆斯这样的男孩都很友好。like 也常用来表示举例, 可与 such as互换。但 such as用于举例可以分开使用,此时不可与like 互换。The farm grows various kinds of crops, such as/like wheat, corn, cotton and rice. 注 意:使用 such as 来举例子,只能举出其中的一部分,一般不能全部举出。若全部举出,要改用na
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