Unit 3 Section A Grammar Focus 课件 2025-2026学年人教版（2024）八年级英语上册

Section A Grammar Focus Unit 3 Same or Different? To master key words/phrases: fact, slim, population, average, rainfall, pleasant. 01 To master the usage of comparative. 02 学习目标 Lead in Let’s sing! Let’s compare Pan Zhanle is _______ than Quan Hongchan. Quan Hongchan is _______ than Pan Zhanle. taller shorter Han Hong is _______ than Zhou Shen. Zhou Shen is _______ than Han Hong. heavier thinner 新课讲授 3a Read the sentences and notice the comparatives in bold. Find more examples in Section A. There are more activities this year. It is more colourful than last year. Emma is taller than Ella, but her hair is shorter than Ella’s. Ella dances better than Emma, but Emma sings louder than her. Emma always gets up earlier than me, but I work as hard as her! 形容词和副词有三个比较等级： ①原级；②比较级；③最高级。 两者之间比较用比较级； 三者或者三者以上进行比较用最高级。 形容词和副词比较等级的构成 1.什么是形容词的原级？ 表示修饰两种东西的程度是一样的,用as… as表示原级， 译为“和……一样”。 2.什么是形容词的比较级？ 表示两者相比，一个比另一个更……，有比较级的 句中通常有than,且仅限于两者比较。 形容词的原级和比较级 形容词和副词的比较级 Find the rules short - shorter small - smaller big - bigger thin - thinner nice - nicer safe - safer heavy - heavier happy - happier 规则变化--单音节词 short shorter 一般在词尾+er nice late nicer later 以字母e结尾，在词尾+r thin hot thinner hotter 重读闭音节词尾只有一个辅音字母，先双写该辅音字母，再+er funny heavy funnier heavier 以“辅音字母+y”结尾的双音节词，把y改i，再+er good well bad badly worse many much more little far farther further old older elder better 两好三坏 两多一少 一远一老 年龄，新旧 长幼 距离 程度 less 不规则变化 比较级规则变化口诀 比较级要变化，一般词尾加­er。 词尾若有哑音e，直接加r就可以。 辅音字母若加y, 记得变y为i。 一辅重读闭音节，末尾字母要双写。 多、双音节有规律，词前加more就可以。 比较级的用法 1）主语(‘A’)+谓语动词+形容词/副词比较级+than+主语(‘B’)+ …       e.g. A modern train is faster than a car. This book didn’t cost me more than that one. 2）在形容词比较级前还可用much、even、 still、far、 a little等来修饰，表示“……的多”，“甚至……”, “更……”, “……一些”。 e.g. He is much more serious than his brother. This book is even more useful than that one. 3）“比较级＋and＋比较级”意为“越来越……” ， 多音节比较级用“more and more＋形容词原级”形式。 e.g. It is raining harder and harder. Chinese is becoming more and more popular. 4）“Which / Who is + 比较级…?”比较A、B两事物, 问其中哪一个较……时用此句型。 e.g. Which T-shirt is nicer, this one or that one? Who is more active, Mary or Kate? 5）the+比较级...，the+比较级... 表示“越……, 越……”。 e.g. The more, the better. The harder you work,the better grades you’ll get. 3b Use the words in brackets to write questions and answers. 1. Q: Is Julie slimmer than you ? ( Julie / slim / you) A: No, she isn’t. She is as slim as me. 2. Q: ______________________________? (you / serious / cousin) A: No, I’m not. I am ___________ than he is. 3. Q: __________________________________? (Tom / smart / Sam) A: No, I don’t think so. I think Sam is as ___________ as Tom. 4. Q: _____________________________? ( Jack / swim / fast / Sally) A: No, he doesn’t. He swims as ___________ as Sally. Are you as serious as your cousin less serious Do you think Tom is smarter than Sam smart Does Jack swim faster than Sally fast 3c Look at the chart. Then complete the sentences to compare Guangzhou and Chicago. Use the words in the box and than. Facts Population (2022) 18.734 million 2.665 million Area 7,436 square km 589 square km Average rainfall per year 1,923 mm 910 mm Average January temperature 16 °C -6 °C Average July temperature 31 °C 23 °C Guangzhou Chicago large small much warm cool 1. The population of Chicago was _________________ that of Guangzhou in 2022. 2. In area, Guangzhou is _________________ Chicago. 3. If you don’t like rain, you may like Chicago’s weather _________________ Guangzhou’s. 4. Guangzhou has a pleasant temperature in January. It is much _________________ Chicago in January. 5. Chicago is _________________ Guangzhou in July. smaller than larger than more than warmer than cooler than We learn: 1. vocabulary: fact, slim, population, average, rainfall, pleasant 2. sentence patterns: as + 形容词或副词原形 + as；(more) than + 比较范围 We can: master the usage of comparative. 课堂总结 当堂检测 单项选择。 1. Before you buy clothes, you should compare them ______ others. A. from B. on C. into D. with 2. — I think English is ________ maths. — Yes, I think so. A. much important than B. so important as C. as important as D. as more important as D C 3. Susan，the girl in red，is _______ at Chinese than her brother John. A. good B. better C. well D. best 4. —Jim and I share ________ tastes and hobbies. —No wonder you take part in lots of meaningful social activities together. A. separate B. weak C. similar D. double 5. The Tokyo Olympics will be held from July 23 to Aug 8. Chinese athletes (运动员) will ________ 155 events. A. take part in B. take care of C. take pride in D. pay attention to B C A Lavf60.4.100 $$