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Examples of effective conservation of places matter to the world. They range from the 1960s Nubian campaign to safeguard Ancient Egyptian monuments from the waters of the Aswan Dam to the removal in 2018 of the Belize Barrier Reef from the List of World Heritage in Danger. Conservation is the core purpose of the World Heritage Convention and it may also be its biggest challenge.

The following example shows how successes at specific sites now serve as models for conservation and sustainable(¿É³ÖÐøÐÔ) development. A year after Vienna was included on the World Heritage List in 2001, the World Heritage Committee (WHC) expressed concerns about the architectural solutions and height of four planned towers of the Wien-Mitte project. This development project, close to the Historic Centre of Vienna in the site’s buffer zone, the one that lies between two or more other areas, affected the urban scale(¹æÄ£) and visual effects in and around the property(µØ²ú). As a result of the Committee’s concerns, Vienna changed its building codes and launched a new design competition for the Wien-Mitte project to work out architectural plans with reduced size in keeping with World Heritage protection.

The successful practice inspired the government of the city to invite over 600 experts and professionals from 55 countries to an international conference on World Heritage and contemporary architecture, held in Vienna in May 2005. The global discussion that followed, detailing an approach to managing conservation and development, was recorded in the UNESCO Recommendation in 2011.

The Recommendation put forwards an all-rounded and combined approach to balancing urban heritageconservation and economic development, arguing that active protection and management of urban heritage supports the goal of sustainable development.

The Recommendation supports the harmonious combination of contemporary involvement into the historic urban framework while holding on to values linked to history, memory and the environment.

1£®Why does the author mention the Belize Barrier Reef in Paragraph 1?

A£®To explain the goal of the organization.

B£®To encourage the public to protect the world.

C£®To show the positive effect of conservation.

D£®To remind people of the environmental problems.

2£®Why was WHC worried about the Wien-Mitte project?

A£®It took up too much public land of the city.

B£®It had a bad effect on the Historic Centre of Vienna.

C£®Its original designs were not environmentally friendly.

D£®Its architectural solutions couldn’t meet safety standards.

3£®What did the global discussion focus on?

A£®The ways to combine conservation and development.

B£®The creation of the new UNESCO Recommendation.

C£®The international urban management and development.

D£®The styles of the contemporary architecture of Vienna.

4£®What is the authors purpose in writing the text?

A£®To examine the challenges faced by global urban planners.

B£®To introduce alternative ways of protecting the environment.

C£®To stress the importance of the value of history and memory.

D£®To promote active conservation and sustainable development.