A【2019·常州】
The Dead Sea

    At 430 meters below sea level， the Dead Sea is Earth's lowest point on land． It is popular for its wonderful buoyancy（浮力）． The high salt content—more than 34 percent — makes swimming more like floating．

Now the Dead Sea is actually dying． People are using water from the Jordan River， which takes water away from the Dead Sea． Since 1930， its surf area has reduced by almost 40 percent．
 Venice， Italy
With waterways instead of streets． This "Floating City" has attracted visitors for centuries． But no visit to Venice is complete without a ride on one of its famous gondolas， human powered water taxis． Water creates Venice． But water will also kill the city．
Built on soft earth， Venice has slowly been sinking （下沉） for centuries． Now， with rising sea levels caused by human activities， it's sinking faster． According to US — based magazine Architectural Digest， the city may disappear in the next 100 years． Better book your gondola soon!
Great Barrier Reef， Australia

Covering  more  than  2，300  kilometers  of  Australia's northeast coast， Great Barrier Reef is the world's largest reef ecosystem， and an ideal place for scuba divers （水肺潜水者）．Thousands of colorful coral （珊瑚） and fish make homes in the blue sea water． It's like a big underwater party!
Sadly， the party might be over soon． The reef is
dying． Human activities are changing the weather． Warming ocean， 
water kills the coral， and this causes problems up the food chain． The
New York Times reported that large parts are already dead， and the reef system might be gone  by 2030．

26．What can be the best title of the passage？（     ）
A．Disappearing Watery Wonders B．Amazing Man-made Wonders on the Sea
C．Lost Watery Wonders on the Sea D．Last Watery Wonders in the World
27．Which of the following is the shared cause of the problems all the three places are facing？（     ）
A．Water loss． B．Sea pollution．
C．Warming seas． D．Human activities．
28．If Tom wants to visit all the following places before they are gone， and he can only afford one in the next 15 years， where must he go？（     ）
A． The Dead Sea． B． Venice．
C． Italy． D． Great Barrier Reef．
26．A 【解析】主旨大意题。根据原文关于死海，Now the Dead Sea is actually dying；现在死海正在消亡，提到威尼斯 the city may disappear in the next 100 years这个城市可能在下个100年后会消失，提到澳大利亚大堡礁and the reef system might be gone  by 2030 大堡礁系统可能会在2030年前消失。可知这些都是正在消失的水上的奇迹，是本文章的主旨。故选A。
27．D 【解析】细节理解题。根据原文，提到死海，People are using water from the Jordan River， which takes water away from the Dead Sea．人们正在用约旦河的水，那里的水是从死海来的水。提到威尼斯，With waterways instead of streets． This "Floating City" has attracted visitors for centuries．不是街道而是水路，这个"浮着的城市"已经吸引了游客好几个世纪了。提到澳大利亚大堡礁，Human activities are changing the weather． Warming ocean， water kills the coral， and this causes problems up the food chain，人类活动正在改变天气，温暖的海水杀死珊瑚，然后导致带来食物链的问题。故选D。
28．D 【解析】细节理解题。根据原文，关于死海，Now the Dead Sea is actually dying；现在死海正在消亡，提到威尼斯 the city may disappear in the next 100 years这个城市可能在下个100年后会消失，提到澳大利亚大堡礁and the reef system might be gone  by 2030 大堡礁系统可能会在2030年前消失。根据题目汤姆需要在他消失之前去，且他只能支付得起接下来15年的，所以选择澳大利亚大堡礁，它在2030年前消失，时间上与它也相吻合。故选D。