1、八年级下册Unit 7 (2) Grammar 比较级、最高级规则变化 一般在词尾直接加-er 或 -est. long- longer - longest 以字母e结尾的词，直接加-r 或-st nice- nicer - nicest 以“辅音字母+y”结尾的词，把y变i 加-er 或-est heavy- heavier - heaviest 重读闭音节词词尾只有一个辅音字母时，双写这个辅音字母，再加-er 或-est big- bigger - biggest 部分双音节词和多音节词，前加more构成比较级，加most构成最高级 beautiful- more beautiful -
2、most beautiful 比较级、最高级不规则变化 原级比较级最高级 good/wellbetterbest many/muchmoremost bad/badlyworseworst littlelessleast oldolder/elderoldest/eldest farfarther/ furtherfarthest/furthest 比较级 as + adj./adv. + as. 同级比较，表示一样 Tom is as tall as me. Tom runs as fast as me. 比较级+ than 差级比较，表示比.更 Tom is taller than me.
3、 Tom runs faster than me. 比较级 A+ 倍数 +比较级 +than + B A比B.多少倍 Our school is twice bigger than yours. 倍数表达： twice three/four/five times. 比较级 比较级+and +比较级 或 more and more+形容词/副词原级 越来越. English is becoming more and more important. Its getting colder and colder. The +比较级， the+比较级 越.就越. The harder she worke
4、d, the more progress she made. 最高级 the+ 最高级 + in/of + 范围 .中最. Tom is the talles of all boys. Tom runs the fastest of all boys. 最高级 A + be + one of the + 形容词最高级+ 名词复数+ in /of +范围 A是.中最.之一 Einstein is one of the most famous scientists in the world. A + be+ the+序数词+形容词最高级+ 名词单数+ in/of + 范围 A在.中是第几的. To
5、m is the second tallest boy in the class. 比较级、最高级互换 比较级 + than any other + 名词单数 比其他任何.都还要. Tom runs faster than any other boy. 比较级 + than all other + 名词复数 比其他所有.都还要. Tom runs faster than all other boys. Next time 八年级下册Unit 7 (3) Key sentences Thanks for watching!时态 八年级下册Unit 7 (3) Key sentences a lo
6、t bigger. Its a lot bigger than the population of US. 可以修饰比较级的有： a little, a bit, even, much, a lot, far. Im much more serious than him on this issue. less + adj. + than. less + adj. + than. 不及. This book is less interesting than yours. Its 8844.43 meters high. 数字+单位+长、宽、高. The river is about 1000 m
7、eters long. as Its also very hard to take in air as you get near the top. as引导状语从句，随着. Men get wiser as they get older. 不定式 The first people to reach the top were. 这里不定式作了定语，修饰people He is the first one to arrive. die from The babies ofren die from the illnesses. die from 死于间接、环境的原因 He is die from t
8、he car accident. die of 死于直接、人体自身的原因 He is die of the heart troubles. 慢性疾病由于比较复杂，die from和die of几都可以 An adult panda weights many times more than a baby panda. 倍数 + 比较级 + than. My books is twice more expensive than yours. spend .spend more than 12 hours a day eating about 10 kilos bamboo. spend time/
9、money (in) doing. We cant spend so much money playing games. V-ing Teaching children is one way to help save pandas. 动名词可以做主语，谓语用单数形式 Giving away her child is the hardest thing in her life. Next time 八年级下册Unit 8 Vocabularies Thanks for watching!八年级下册Unit 7(1) Vocabularies deep deep adj. 深的 - shallow
10、 adj. 浅的 wide adj. 宽的 - narrow adj. 窄的 thick adj. 厚的 - thin adj. 薄的 population 单独做主语，谓语要用单数 The population of this town is small. 如果前面有百分数，谓语则用复数 About 70% of the population still live in the countryside. 形容人口多少要用big/large 或者 small 提问用whats the population of. take in take in 吸收，欺骗 off 起飞，脱衣服 care of
11、 照顾 over 接管 succeed vi. 成功 （过去式 succeeded） His plan succeeded. He succeeded the plan. X succeed in doing. 做某事很成功 He succeeded in making his plan come true. . succeed vi. 成功 His plan succeeded. success n. 成功 Achieving this goal is a success. successful adj. 成功的 She is a successful business woman. in
12、the face of 面对.困难，问题 Its hard to be an optimist in the face of so much tragedy face v. 面对 My house faces Mrs. Smiths. awake adj. 醒着的，只能做表语，不能做定语 Do you know if the old lady is awake？ Do you know if she is an awake lady? X 同样的用法有： asleep, alone, alive. excitement n. 激动 以-ment结尾的单词多数是n., 有“行为”或“结果”的意思 move - movement agree - agreement manage - management Next time 八年级下册Unit 7 (2) Grammar Thanks for watching!
