Unit3-Unit4 语法复习 课件2025-2026学年人教版（2024）英语八年级上册

Unit 3 Same or Different 1 比较级含义 形容词的比较级 习题巩固 副词的比较级 比较级 形容词有三个等级（副词也是） 原级 比较级 最高级 比较级用于比较两个主体的，组成句子的方式是将形容词或副词变成比较级的形式，之后要用than引出比较的对象。 单音节和部分双音节词 一般在词尾加-er tall→taller long→longer 以字母e结尾的词，在词尾加-r fine→finer late→later 重读闭音节词且词尾只有一个辅音字母，双写辅音字母再加-er big→bigger thin→thinner  以“辅音字母 + y”结尾的双音节词，先把“y”改为“i”再加-er easy→easier   friendly→friendlier 形容词比较级的构成 —— 规则变化： 多音节词和部分双音节词在词前加more outgoing → more outgoing  beautiful → more beautiful  常用比较级一些不规则变化： 原级 比较级 good better bad worse little less many/much more far farther/further 多个形容词修饰一个名词的排列顺序 1 限定词：冠词、指示代词、形容词性物主代词、名词所有格、数词等 2 评价性形容词：beautiful, fine, interesting… 3 描绘性形容词，包括大小、长短、高低等：tall, high, small, little, round… 4 新旧年龄：young, old, new… 5 颜色：black, white, blue… 6 国籍、地区、出处的形容词：Japanese, American, English, rural … 7 材料：plastic, silky, wooden… 简称：限、评、描、新、颜、国、材 形容词原级的常用句型 ① 程度副词very, too, so, quite等修饰形容词的原级 如：very tall、 too hot、 so cold The car is quite/very cute. The flood is very/so serious. as+adj.+as 和...一样 as funny as as big as as happy as as smart as 否定形式： not so/ as+adj.+as 和… 不一样 —His handwriting is very careful. —Yeah. With the help of him, his sister writes as as him. A．care B．careful C．more carefully D．carefully 【解析】“as＋形容词/副词原级＋as”是固定用法，且修饰write要用副词。故选D。 形容词比较级的常用句型 （两者之间比较） 比较级+than… 数字+倍数 + 比较级+than .... the +比较级， the +比较级 越……， 越……。 This apple is more delicious than that one. This garden is 9 times larger than that one. the +比较级+of the two… Davie is the taller of the two. The more you practice, the better your oral expression ability will be. small— fast--- large --- late ---- heavy--- busy --- hot ---- big ---- interesting --- beautiful --- smaller smallest faster fastest larger largest later latest heavier heaviest busier busiest hotter hottest bigger biggest more interesting most interesting more beautiful most beautiful 副词比较级的变化规则: 1. 规则变化： 1) 单音节的词在词尾直接加-er，例如： near → nearer hard → harder 2) 部分双音节和多音节的词在词前加more，例如： carefully → more carefully warmly → more warmly 2.常用不规则变化为： 原级 比较级 well better badly worse much more little less far farther/ further 写出下列词的比较级形式： 1. small ______ 2. nice _______ 3. hot _______ 4. easy _______ 5. big ________ 6. wet _______ 7. heavy _______ 8. new _______ 9. red ________ 10. thin ______ 11. tall ______ 12. bad ______ 13. well_______ 14. badly______ 15. little ______ 16. much______ smaller nicer hotter easier bigger wetter heavier newer redder thinner taller worse less more better worse Unit 4 Amazing Plants and Animals 15 最高级用法 形容词+副词的最高级 习题巩固 常用句式 最高级 最高级用于描述在三个或三个以上的人或事物中，某一性质或特征达到最高程度的情况。 单音节和少数双音节词 一般在词尾加-est tall→tallest long→longest 以字母e结尾的词，在词尾加-st fine→finest late→latest 重读闭音节词且词尾只有一个辅音字母，双写辅音字母再加-est big→biggest thin→thinnest  以“辅音字母 + y”结尾的双音节词，先把“y”改为“i”再加-est easy→easiest   busy→busiest 形容词和副词的最高级的变化形式： 规则变化:在词尾加-est或在单词前面加most 大多数双音节和多音节单词 在单词前加most careful → most careful dangerous → most dangerous slowly →most slowly beautiful →most beautiful 写出下列单词的最高级形式： 1. short → _________________ 2. nice → _________________ 3. big → _________________ 4. thin → _________________ 5. early → _________________ 6. slowly → _________________ shortest nicest biggest thinnest earliest most slowly 7. beautiful → _________________ 8. carefully → _________________ 9. badly → _________________ 10. much → _________________ 11. little → _________________ 12. far → __________________ the most beautiful most carefully worst most least farthest / furthest 最高级基本句型（三者及三者以上） 例如： John is the tallest in our class. 约翰是我们班个子最高的。 Tom lives (the) closest to school of all my classmates. 在我们班所有的同学中，汤姆住得离校最近。 1. the+形容词最高级+名词+in/of 短语 2. 疑问词 + be + the + 最高级 例如： Which is the biggest, the sun, the moon or the earth? 太阳、月亮和地球哪一个最大？ 3. “the + 序数词 + 最高级” 表“第几” 例如： The Yellow River is the second longest river in China. 黄河是中国第二长河。 例如： Guangdong is one of the biggest cities in the world. 上海是世界上最大的城市之一。 4. one of the + 最高级 + 复数名词 “最……之一” —Do you know Shanghai is one of ________ in the world? —Yes, it's bigger than ________ city in China. A. the biggest city; any B. the biggest cities; any C. the biggest cities; any other 考查形容词的用法。“one of the ＋ 形容词最高级＋可数名词复数＋范围”表示“……中最……之一”，应排除A；再由句意“上海比中国其他任何的一个城市都大。”可知选C。 找出划线部分的错误并改正。 1. He is thiner than his brother. 2. The pencil is the more expensive of all the pencils. 3. This book is interestinger than one. 4. Her English is gooder than I. 5. Benny was most excited in the class. thinner most more interesting better the Thank you 27 $$