精选优质文档-倾情为你奉上Unit 7 W hats the highest mountain in the world?一、重点短语1. as big as 与一样大 as.as 与.一样(形容词 副词) 同级比较 中间加形容词副词原型2. one of the oldest countries 最古老的国家之一 one of +the 形容词最高级+可数名词复数 最之一3. feel free to do sth. 随意地做某事4. as far as I know 据我所知 (可用在作文当中发表自己的观点) In my opinion5. man-made objects 人造物体6. part of. . 的组成部分7. the highest mountain 最高的山脉8. in the world 在世界上 同义短语有: all over the world around the world throughout the world 9. any other moun