Unit 3 Section A(Grammar Focus－3c) 语法精讲（作业课件）-【原创新课堂】2022-2023学年八年级英语上册（人教版）广东

原创新课堂 2 英语八年级上册人教版 Section A(Grammar Focus-3c) 语法精讲 难点探究 英语中大多数形容词和副词都有三个等级：原级、比较级和最高级。本单元我们 主要学习它们的原级和比较级。 ·形容词与副词的原级 当相比较的两者在程度上相同时，可用原级比较。 1.肯定结构：as十形容词/副词原级+as,意为“和...一样..”。 eg:Tom is as old as me.汤姆和我年龄一样大。 John plays basketball as well as Mike.约翰打篮球和迈克打得一样好。 2.否定结构：not as/s0十形容词/副词原级十as,意为“不如..”。 eg:This film is not as/so interesting as that one.这部电影没有那部有趣。 Sam doesn't study as/so hard as his sister.萨姆学习不如他姐姐那样努力。 【活用】()M.Balanced diets are just as- as regular exercise in our daily life. A.important B.more important C.most important D.the most important ( )2Guilin isn't as as Beijing.(2021,桂林) A.big B.bigger C.biggest ·形容词与副词的比较级 当两者相比较，表示“A比B更.…”时，应用比较级。注意相比较的两者必须是属 于同一性质或范畴的人或物。 1.形谷同和副同比致级的胸成 ①规则变化 a)一般在词尾加-ereg:great→greater,soon→sooner b)以不发音的字母-e结尾的词只加-reg:nice→nicer,late→later c)以辅音字母结尾的重读闭音节词，双写该辅音字母，再加-ereg:big→bigger, hot→hotter d)以“辅音字母十y”结尾的词，变y为i再加-ereg:easy→easier,happy→ happier,early-earlier e)部分双音节词和多音节词在词前加more eg:difficult-more difficult,carefully-more carefully ②不规则变化 eg:good/well→better many/.much→more bad/badly→worse little→less far→farther/further old→older/elder 2.形容词和副词比较级的用法 ①“比较级十han”,意为比..更..”。 eg:His bike is newer than his father's.他的自行车比他爸爸的新。 The article is three times longer than that one,这篇文章比那篇长三倍（即：这篇文 章是那篇文章的四倍长)。 ②“疑问词十be十比较级，AorB?”,意为..更..，A还是B?”。 eg:Which is bigger,the earth or the moon？哪一个更大，地球还是月球？ ③“the十比较级十of the two.”,意为“两者中较..的”。 eg:Mary is the more beautiful of the two girls..玛丽是两个女孩中比较漂亮的那个。 【话用】()3pon't keep up with him.He runs than me. A.much faster B.even worse C.less carefully D.more carefully ()4Which country has a population,China or Canada? -China.Canada is a lot crowded than China. A.bigger,less B.bigger,more C.smaller,less D.smaller,more ()The more you drive,the you are. A.careful,safer B.carefully,safer C.carefully,safely D.careful,safely