初中英语新人教版八年级上册Unit 3 Same or Different语法和写作（2025秋）.doc

1、八年级英语上册Unit 3语法和写作一、语法解析（一）形容词、副词原级用法1.由表示程度的副词very, so, too, enough, quite等修饰时，用形容词原级。Eg: It is too early, nobody gets up. 天太早了，没有人起床。2.原级比较，表示两者在某一方面相同或不同时用原级。具体结构如下：1)A + 动词 + as + 原级 + as + B 译为“A与B一样.”Eg: Lucy is as tall as Mary. 露西和玛丽一样高。2) A + 动词 + not + so/as + 原级 + as + B 译为“A不及B那样.”Eg: I c

2、ant run as fast as my brother. 我跑得不及哥哥跑得快。3) A + be + 倍数 + as +形容词原级 + as + B 译为“A是B的.倍”Eg: Our school is twice as large as theirs.我们的学校是他们的两倍大。4) as + 原级 + as + 用作比喻的名词 译为“像.一样”（此结构多用于口语)Eg: He is as busy as a bee. 他像蜜蜂一样忙碌。（二）形容词、副词“比较级”的变化规则1.规则变化形式1)一般形容词、副词比较级加-er.Eg： small - smaller(比较级)long -

3、 longer (比较级) 2)以不发音e结尾，加-r.Eg: nice - nicer (比较级) 3)以重读闭音节（有一个元音字母，元音字母后只有一个辅音字母），双写结尾字母，再加-er.Eg: big - bigger(比较级) hot - hotter(比较级)4)以辅音字母加y结尾，变y为i，再加-er.Eg: happy - happier (比较级) 5) 多音节词和有些双音节词，在词前加more.Eg: interesting - more interesting (比较级)2.比较级不规则变化形式Good/well - better (比较级)Bad/badly - wors

4、e (比较级) Many/much - more (比较级) Little - less (比较级) Far - farther/further (比较级) 注意：两种变化形式中，前者侧重距离更远，后者侧重程度更深Old - older/ elder (比较级) 注意：两种变化形式中，前者侧重年龄大或物品旧，后者侧重年长（三）形容词、副词比较级用法1.由表示程度的副词a little, a bit, a few, a lot, much, even, still, far, rather, any等修饰时，用形容词 或副词的比较级。Eg: It is much hotter today. 今天

5、天气更热。2.比较级常见结构:1) A + 动词 + 比较级 + than + B； 译为“A 比 B.”Eg: Our school is bigger than yours. 我们的学校比你们的大。2) the + 比较级.， the + 比较级.； 译为“越.，就越.” Eg: The more books you read, the cleverer you are.你读的书越多，你会越聪明。3) 比较级 + and + 比较级； 译为“越来越.”注意：若为多音节词，则为more and more + 形容词Eg: It gets hotter and hotter. 天气变得越来越热

6、。The girl becomes more and more beautiful. 那个女孩变得越来越漂亮。4) A + 动词 + 比较级 + than any other + 可数名词单数 译为“ A比其他任何都.”Eg: He is taller than any other student. 他比其他的学生更高。5）A + 动词 + less + 多音节形容词原级 + than + B； 译为“A不及B.”Eg: This book is less interesting than that one. 这本书不及那本有趣。6) 表示两者之间进行选择时，用句型：Which/Who + 动

7、词 + 比较级， A or B？Eg: Which fruit do you like better, apples or bananas? 你更喜欢哪种水果，苹果还是香蕉？7) 表示“两者之间较.的一个”时，常用”the + 比较级”结构。Eg: He is the thinner of the two. 他是两个中较瘦的那个。8) 表示“几倍于.”时，用句型：倍数 + 比较级 + thanEg: Your ruler is three times longer than mine. 你的尺是我的三倍长。二、写作本单元写作主题为“朋友应该相似还是不同”（一）常用短语1.Be differen

8、t from. 不同于.2.In some ways 在某些方面3.Both. and. 两者都4.Be good at. 擅长.5.Do well in. 在.方面表现出色6.Good friends 好朋友（二）常用句型1.My best friend is Tom. 我最好的朋友是汤姆。2.We are both thin, but Tom is much thinner. 我们都很瘦，但是汤姆更瘦。3.I am good at English but he does well in math. 我很擅长英语但是他擅长数学。4.I think differences are not im

9、portant in a friendship. 我觉得不同点在友谊中不重要。5.Our friendship will last forever. 我们的友谊会持续永远。（三）范文My good friend and II like to have friends who are different from me. My best friend is Tom. In some ways we look the same, and in some ways we look different. We both have black eyes and black hair. We are bo

10、th thin, but Tom is much thinner. He is taller, more outgoing than me. And he is really more hard - working than me. I am good at English but he does well in math. We like playing basketball. Both he and I like sports show. But I like watching cartoon films, she likes watching talk show. I am lazier than him. He is never late for class. But I always get up late. I think differences are not important in a friendship.Although we have some differences, we are good friends. Our friendship will last forever.3