One of the world's most dangerous sports is mountain climbing， and one of the（1） popular places for this is the Himalayas． The Himalayas（2） （run） along the southwestern part of China．
Of all the mountains， Qomolangma rises the highest and is the most famous．（3） is 8，844． 43 meters high and so is very （4） （danger）to climb． It is very hard to take in air as you get near the top．
The first Chinese team （5） （reach） the top in 1960， while（6） first woman to succeed was Junko Taibei from Japan in 1975．
Why do so many climbers risk their lives？ One of the main （7） （reason） is that people want to challenge themselves （8） of difficulties， The spirit of these climbers shows us that we should never give up （9） （try） to achieve our dreams． It also shows that humans（10） （be） stronger than the forces of nature in some situations
It was （粗心的）of my little brother to leave the door open when he went to the cinema last night．
According to a survey， the average number of （日常的）steps of people across the world is 4，961．
Natural resources are very important for us and we should use them （明智地）．
Neil's coach gave him several suggestions to （避免）getting lost．
Before travelling， my mother often （准备）everything well．