资源简介 八年级上册英语各单元知识点大归纳 之第三单元Unit 3 I’m more outgoing than my sister.语法知识通关:关于形容词、副词的比较级一、大多数形容词和副词都有三个级别,分别是原级、比较级和最高级。1、形容词、副词的原形就是原级。形容词、副词的比较级,是两者之间的比较,表示“较.…..”或“更....”,其构成形式分为规则和不规则两种形式,具体可以参见书上第114页。形容词、副词的最高级,表示三者或者三者以上的比较,表示“最...”(具体用法我们在第四单元进行阐述)关于比较级的句型结构:形容词比较级常用的句型结构:A+be动词+形容词的比较级+than +B ;表示“A比B更…”(注意:A与B必须是同级的,即必须是人与人,物与物进行对比);例如:Alice is smarter than her sister. 爱丽丝比妹妹更聪明。又如:Her hair is longer than mine. 她的头发比我的头发长。副词比较级常用的句型结构:“A+实意动词+副词比较级+than+B”;表示“A比B...”;例如:Sports stars eat better than us.运动明星比我们吃得好!又如:Tom plays basketball better than his brother. 汤姆打篮球比他的弟弟打得好!形容你、副词比较级的特殊用法:比较A,B两人/两事物问其中哪一个较...时用句型;“Who/which+谓语动词+adj./adv.比较级,A or B ” 例如:Who is thinner, Jenny or Mary 珍妮和玛丽哪一个更瘦?2、当比较的对象是两者,而且用of the two来体现时,形容词的比较级前面要加上the;例如:Who is the taller girl of the two , Alice or Grace 两个女孩中,哪一个更高一点,是爱丽丝还是格蕾丝?3、表示“越来越”,多音节比较级用“more and more+原级”。例如:I hope my hometown will be more and more beautiful. 我希望我的家乡会越来越美。4、The +比较级,the+比较级,意思是:”越...越..." 例如:The more ,the better. 越多越好!The more you read English , the faster you will be. 你读英语读得越多,你的速度就会越快!5、两者进行比较时,比出的结构不分胜负、旗鼓相当,用A+谓语动词+as+ adj./adv.原级+ as+ B.例如:Helen is as tall as Amy. 海伦和艾米一样高。又如:I get up as early as my mother every day.我每天起得和妈妈一样早。当一方不及另一方时,用“not as/so+形容词或副词;注意:肯定句中只有as...as;否定句中除了not as ... as,还可以用not so...as。例如:I am as old as my friend Tom.我和我的朋友汤姆一样大。又如:She sings as well as her teacher. 她唱歌唱得和她的老师一样好。又如:Tom doesn’t work as hard as Lily. 汤姆没有莉莉那么努力。He is not as outgoing as his sister.他没有自己的妹妹那么外向。关于形谷词,副词比较级前的修饰语。当表示两者之间比较结果的程度时,可以用much, a lot, a little,a bit等来修饰比较级。例如:The girl in red is much taller than me. 穿红色衣服的女孩比我高得多。又如:The red flowers are a little more beautiful than the blue ones. 红色的花比蓝色那些要漂亮一点。二、短语、单词、句子过关。1、have a good tine ! 玩得开心!have fun \ a good time doing sth. 做某事很开心;例如:I have fun watching this interesting video. 我看这个有趣的录像看得很开心。the same ···as···表示“与...一样”,其反义词是be different from...表示“与...不同”。例如:The color of the jacket is the same as my sweater. 这件夹克的颜色和我的毛衣一样。又如:The boy is different from his twins brother. 这个男孩和他的双胞胎弟弟不一样。关于be good at 和do well in;两者都表示在某方面擅长,后面可以接名词、动词ing形式等。例如:I am good at schoolwork. 我擅长功课(我学习好)!又如:The boy does well in playing basketball.这个男孩擅长打篮球。care about意为关心 ;care for 意为关爱 ;take care(当/小心) take care of (照顾)=look after5、makes me laugh让我发笑;make sb.do sth意为:让某人做某事His father always makes home finish his homework before 8:00.他的父亲总是让他在八点以前完成作业。make sb.+形容词:使某人保持某种状态;例如:My friends always make me happy. 我的朋友总是让我很开心。6、be like“就像...”;例如I am like your sister. 我就像你的妹妹。why+句子:那就是...的原因;那就是为什么...;例如:That’s why I was late for school.那就是我上过学迟到的原因。8、as long as 既然;例如:We don’t have to spend too much money as long as the foods are good.我们不需要花太多的钱,只要食物美味就可以了。9、Although 与but两者分别表示“虽然”和“但是”,二者不可同时使用。例如:Although I was late for the party , I saved the old man. = I saved the old man ,but I was late for the party.虽然我聚会迟到了,但是我救了老人的命。10、助动词do\does为了避免重复,可以代替前面出现过的实意动词。例如:I have longer hair than Tom does.我留着比汤姆更长的头发。 展开更多...... 收起↑ 资源预览