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The Mekong River Commission has found no evidence ______ the dams on the upper reaches have an influence on the water flow downstream.

A.whichB.thatC.whereD.what

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Climate change, pollution, overuse of water and development are killing some of the world’s most famous rivers including China’s Yangtze, India’s Ganges and Africa’s Nile, WWF said on Tuesday.At the global launch of its report “World’s Top 10 Rivers at Risk”, the group said many rivers could dry out, affecting hundreds of millions of people and killing unique aquatic life.

 “If these rivers die, millions will lose their livelihoods, biodiversity will be destroyed on a massive scale, there will be less fresh water and agriculture, resulting in less food security,” said Rayi Singh, secretary-general of WWF-India.The report launched ahead of “World Water Day” today, also cited the Rio Grande in the United States, the Mekong and Indus in Asia, Europe’s Danube, La Plata in South America and Australia’s Murray-Darling as in need of greater protection.

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Climate change, including higher temperatures, also means serious consequences for fishery productivity, water supply and political security in Africa’s arid Nile basin.Tributaries flowing into the Ganges are drying up because of irrigation, WWF said.

What does the text mainly talk about?

      A.Saving fresh water in our life.             B.How to protect our rivers.

      C.An important discovery.                  D.World’s top 10 rivers are at risk.

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       B.there are four Asian rivers mentioned in the passage  

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阅读下面短文,掌握其大意,然后从方框中选出能填入文中空白处的最合适的单词,并将该单词的标号(A、B、C、D、E…)填写在答题卡对应题号的横线上。

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I am ___1__ of my sister but she has one serious ____2___. She can be really __3__. Although she didn’t know the best way of getting to places, she insisted that she __4___ the trip properly. Now I know that the proper way is always her way. I kept asking her, “When are we leaving and when are we ___5___ back?” I asked her whether she had looked at a map yet. Of course she hadn’t; my sister doesn’t care ___6__ details. So I told her that the   7  _ of the Mekong is in Qinghai Province. She gave me a ___8__ look-- the kind that said she would not change her mind. When I told her that our journey would begin    9  an altitude of more than 5,000 metres, she seemed to be excited about it. When I told her the air would be hard to ___10__ and it would be very cold, she said it would be an interesting ___11__. I know my sister well. ___12___ she has made up her __13__, nothing can change it. Finally, I had to give    14  .

 

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