重庆市酉阳第一中学校八年级下册英语unit5topic2复习课件.pptx

Unit 5 Topic 2复习课件;1.语法知识：;（一）同级比较 状语从句中有一类称为比较状语从句，引导比较状语从句的从属连词主要为 as...as（和……一样），not as/so...as（不如……） 1. 肯定句句型结构： 主语A + 谓语动词 + as + 形容词/副词原级 + as + 对比物B”，意为“A与B一样……。 e.g. She is as beautiful as Fan bingbing. e.g.Lucy is as tall as Lily. e.g. I write as well as Tom. e.g. He speaks English as well as Michael.（good好 形容词 well好 副词） （解释：如果谓语动词是be动词，as....as的中间用形容词的原型。如果谓语动词是实意动词as....as的中间用副词的原型。因为形容词修饰be动词，副词修饰实意动词） ;否定句句型结构： 主语A + 谓语动词否定形式not + as / so + 形容词/副词原级 + as + 对比物B， 意为“A不如B……”。 e.g. She is not as/so beautiful as Fan bingbing. e.g.Lucy isn't as tall as Lily. e.g. I don't write as well as Tom. e.g. He doesn’t speak English as/so well as Michael. （解释:如果谓语动词是be动词，变否定句就在be动词后加not。如果谓语动词是实意动词，变否定句就在实意动词前加助动词don't/doesn't/didn't。在否定句中，第一个as可以换成so ,也可以不换，只有在否定句中才能换成so） ;(3)表示倍数，如“一半/两倍/三倍/四倍……”相当于“half/twice/three times/four times/....+ as....as....”结构。 e.g.The room is twice as large as that one. 这个房间是那个房间的两倍大。 ;e. g. ___________________ “他和我一样高。” He isn’t as/so tall as me/I. “他不如我高。” = I am taller than he/him. “我比他高。” _______________________________________ “她做作业和他一样认真。” She doesn’t do her homework as/so carefully as he/him. “她做作业不如他认真。” = He does his homework more carefully than she/her. “他做作业比她认真。”;学以致用，你掌握了吗？;二、根据句意用适当的单词填空。 –Who did it better, Lucy or Lily? – I think Lucy did just as _______ as Lily. 2. I don’t like this film. It’s _______ ________ interesting ______ that one. 3. Tom is _____ tall _____ his brother. 4. The roads there are _____ _____ clean _____ those in Longyan. 5.I didn’t go to the Great Wall 　　　 the weather was bad.? 6.I didn’t go to the Great Wall 　　　　　　 the bad weather.? ;(二)原因状语从句;一、原因状语从句 Adverbial Clauses of Reason 主句 引导词 从句 ↓ ↓ ↓ 1. I'm feeling really sad beca