精选优质文档-倾情为你奉上Unit7 Whats the highest mountain in the world?单元短语一、重点短语1. as big as 与一样大2. one of the oldest countries 最古老的国家之一3. feel free to do sth. 随意地做某事4. as far as I know 据我所知5. man-made objects 人造物体6. part o f. . 的组成部分7. the highest mountain 最高的山脉8. in the world 在世界上9. any other mountain 其他任何一座山10. of all the salt lakes 在所有的咸水湖中11. run along 跨越 12. freezing weather 冰冻的天气13. take in air 呼吸空气14. the firs t people to do sth. 第一个做某事的人15.