【導(dǎo)讀】nologist's?he/shetalksabout?ened?(1)Fiveyears.(2)Alaska.whatshehaddone.(1)Tenyears.(2)Hawaii.(1)Twentyyears.(2)NewZealand.tremble.thingstheysaid.fear.it.reachedourcamp.moveforalongtime.ofthesethings.reachashighas2,000meters.extinctvolcano.andpersuasion.isanaturereserve?Whyis. Tianchi,orLakeofHeaven.TheLakeofHeaven.Byvolcanoeruption.doesTianchimean?Howis. Tianchiformed?people.springs.somepoolsveryhot(over60℃)but