Unit7必背知识点 2023-2024学年人教版英语八年级下册

八年级下7单元知识点 1. 形容词副词的原级比较 ①as+adj/adv+as “和……一样”Eg：He runs as fast as his elder brother. “他跑得和他哥哥一样快。” ②not so/as+adj/adv+as“不如……”可以和比较级比较进行互换。Eg: Linda’s oral English is not as good as Catherine’s. “琳达的口语不如凯瑟琳的好。”= Catherine’s oral English is better than Linda’s. ③A+be +倍数+as+adj+as B“A是B的几倍大。”；A+v+倍数+as+adv+as B“A做……是B的几倍。”Eg：This room is twice as big as that one.“这个房间是那个房间的两倍。”Tom runs twice as fast as his sister.“汤姆跑步的速度是他妹妹的两倍。” 2. 形容词副词的比较级比较 ①A+ be +adj的比较级+than+ B. ; A+v.+adv的比较级+than+B “A比B更……” Eg：Tom is taller than me. “汤姆比我高。” Tom runs faster than me. “汤姆跑得比我快” ②A+be+not +adj的比较级+than+B ； A+v.+adv的比较级+than+B “A没有比B更……” Eg：Tom is not taller than me. “汤姆没有比我高。” Tom doesn’t run faster than me. “汤姆没有比我跑得快。” ③A+be+倍数+adj.的比较级+than B. ; A+V.+倍数+adv.的比较级+than+B. “A是B 的……倍。” Eg：Tom is twice taller than me. “汤姆比我高两倍。”“汤姆的身高是我的三倍。” Tom runs three times faster than me. “汤姆跑得比我快三倍。”“汤姆跑步的速度是我的四倍。” ！！！可以与原级比较互换：Tom is three times as tall as me.“汤姆的身高是我的两倍。”Tom runs four times as fast as me.“汤姆跑步的速度是我的四倍。” ④比较级+and+比较级；more and more +多音节/部分双音节词 “越来越……” Eg：Tom is taller and taller. “汤姆越来越高。” Tom runs faster and faster. “汤姆跑得越来越快。” The city is more and more beautiful. “城市越来越漂亮。” ⑤the+比较级…，the+比较级… “越……，越……” Eg：The harder you work，the luckier you will be. “越努力越幸运。” ⑥疑问词+be+adj的比较级，A or B? “……更……，A还是B?” 疑问词+v+adv的比较级，A or B? “……更……，A还是B?” Eg：Which hat is better，the blue one or the black one？“哪一顶帽子更好，蓝色的还是红色的？” Who runs faster，Tom or Tony？ “谁跑得更快，汤姆还是托尼？” ⑦A+be+adj的比较级+than any other +【C】单/any of+【C】复数/the other+【C】复数 “A比……的任何一个都……” Eg：Shanghai is more prosperous than any other city in China. = Shanghai is more prosperous than any of cities in China. =Shanghai is more prosperous than the other cities in China. “上海比中国任何一个城市都繁华。” *可以放在比较级前面作修饰语的词：even，much，far，still，a lot，a little，a bit Eg：Tom is much taller than me. “汤姆比我高得多。” ⑧（the） +比较级+of +the two……“两者中更……的”Eg：He is taller of the two boys.“他是两个男孩中较高的一个。”*表示两个都高，在比较级前面加the。 3. 形容词副词的最高级比较 ①A+be+the+adj.的最高级形式+in/of/am