首页
登录
职称英语
[img]2011q4/ct_eyyjsaz2007_eyyjsaread_0184_20111[/img] Venice may still be i
[img]2011q4/ct_eyyjsaz2007_eyyjsaread_0184_20111[/img] Venice may still be i
游客
2023-10-13
44
管理
问题
Venice may still be in peril. However, the city known as La Serenissima is no longer sinking, but rising.
A new study from experts appointed by the Italian environment ministry has discovered that the level of the ground surrounding St Mark’s Square--among the lowest-lying in Venice--has been raised by half a centimetre since 1973. Several other parts of the city’s historic centre are as much as one centimetre higher.
Scientists say the city has been rising since a halt was called to the pumping of large amounts of ground water from artesian wells running under the city. The water supplied an industrial complex at Marghera on the mainland nearby.
This had dried out the rock below and allowed Venice to sink by up to 12 cm. Since the water has begun flowing back in, the rock has swollen like a sponge, pushing up the level of the alleyways and buildings.
The Venetians will not be putting their waterproof boots away yet, though. Although the number of high water floods has remained fairly constant over the past 30 years, smaller floods have become more common.
In 1996 Venice was hit by flooding of 80 cm. or more. Changing weather patterns are to blame, as well as damage to the lagoon from erosion and a deep channel dug to allow tankers through.
"The new study shows that Venice is not sinking the way most people believe, but of course it is still in danger," said Giorgio Sarto, senator for Venice and an urban planner.
"The city could start subsiding again in future, and we still have to act against the flood. But we’ve lost precious time. Given the new data, we should have started trying to raise the city 10 years ago. "
Under a new scheme, the edge of St Mark’s running along the Grand Canal--which is as little as 85 cm. above sea level--would be elevated by 15 cm. to one metre above.
A section beyond would be rebuilt to slope gently upwards to a maximum height of 1.15 metres above sea level before rolling back down towards the Doge’s palace.
"Apart from restoring the environmental balance of the lagoon," said Mafia Rosa Vittadini, who chaired the commission, "we must concentrate on raising the ground levels of the canal embankments, and of any other areas where this can be done. "
The backers of the project had originally suggested raising the whole of St Mark’s, but this was vetoed by local authorities as an unacceptable threat to the basilica, palaces and landmark bell tower around it, the level of which cannot be changed.
The last attempt to resolve Venice’s woes--the £ 1.5 billion Project Moses, which involved placing a 30 metre high flood barrier at three openings from the lagoon into the Adriatic--was dropped by the Italian government. There were fears that it could jeopardize the lagoon’s sensitive ecology.
"It’s an awful thing to say, but what Venice really needs is another catastrophe like the flooding of 1966," said Lord Norwich, chairman of Britain’s Venice In Peril fund. "That would shake people into doing something. If we go on doing nothing, Venice might well not be there for our great-grandchildren. " [br] What two materials will be laid under St Mark’s Square when it is raised?
选项
答案
Clay and sand.
解析
(从第二幅图中可以知道如果要提高圣马可广场的水平高度,应该填黏土和沙子Clay and sand。)
转载请注明原文地址:https://tihaiku.com/zcyy/3095413.html
相关试题推荐
HaveyoueverbeentoVeniceorreadaboutthewell-knowncity?Whatima
HaveyoueverbeentoVeniceorreadaboutthewell-knowncity?Whatima
HaveyoueverbeentoVeniceorreadaboutthewell-knowncity?Whatima
StressintheWorkplaceWhatisstress?[img]2011q4/c
StressintheWorkplaceWhatisstress?[img]2011q4/c
[img]2011q4/ct_eyyjsbz2009_eyyjsbreadd_0409_20111[/img]Choosinguniversity
[img]2011q4/ct_eyyjsbz2009_eyyjsbreadd_0409_20111[/img]Choosinguniversity
[img]2011q4/ct_eyyjsbz2009_eyyjsbreadd_0409_20111[/img]Choosinguniversity
[img]2011q4/ct_eyyjsbz2009_eyyjsbreadd_0409_20111[/img]Choosinguniversity
[img]2011q4/ct_eyyjsbz2009_eyyjsbreadb_0397_20111[/img]Day
随机试题
TheCapitalofNorthernIslandis______.A、BelfastB、GlasgowC、DublinD、HullA
【B1】[br]【B3】[audioFiles]audio_eufm_j04_007(20082)[/audioFiles]lower
已知2015年10月30日美元兑人民币汇率为6.3495,当日欧元兑人民币汇率为
常用的需求分析方法有:面向数据流的结构化分析方法(SA)、面向对象的分析方法(O
A.因果分析图 B.控制图 C.调查表法 D.分层法 E.排列图法用来检
右边四个图形中,只有一个是由左边的四个图形拼合(只能通过上、下、左、右平移)而成
2019年末,我国80后、90后、00后人数分别为2.21亿人,2.08亿人,1
下列选项中,哪些是按行政关系排列的()。A.县、中心镇、一般镇、行政村 B
如果父亲和孩子都是A型血,那么孩子的母亲的血型有几种可能?() A.四种B
表象在心理发展的过程中,是从感知向思维过渡的( )。A.初岁环节 B.中
最新回复
(
0
)