亮点：这是一篇很适合于雅思考试的话题文章
① Today the world's largest travel show, ITB Berlin, opens its second event in China.
② Some大约 15,000 attendees from travel firms across the globe are expected to descend on Shanghai 造访上海, where the gathering is taking place.
③ Airlines, hotels and travel agents are eager to grab a slice of 分一杯羹 China's booming 快速发展的 outbound travel 出国游 market.
④ The number of Chinese going abroad on holiday has rocketed 飙升 in the past decade, from 41m a year to over 130m.
⑤ That number is likely to rise further still.
⑥ The chief executive of Ctrip, a travel giant based in Shanghai, predicts that the number of Chinese who hold passports will double by 2020.
⑦ But it is easy to get burned riding this tourism dragon.
⑧ Western cruise lines邮轮公司—which have launched a flotilla船队，小型舰队 of ships to chase a Chinese market that was growing at 80% a year—are hurting now that passenger numbers are forecast预测 to shrink减少 by 15% in 2018.
▍补充
1. descend on
I'm sorry to descend on you without calling you in advance.
2. boom
The leisure industry is booming.
property boom
This year has seen a boom in book sales.
baby boom
3. “飙升”和“上升”
飙升 rocket/surge/soar/escalate
上升 increase/rise/climb
