题目

Directions: For each blank in the following passages there are four words or phrases marked A, B, C, and D. Fill in each blank with the word or phrase that best fits the context.     Keeping The Taps Running in Thirsty Cities     Water covers 71% of Earth's surface yet only 2% of it is accessible as a source of fresh water. 1 on this limited resources is rising, a trend likely to continue.     It is important to recognize that it is not just city residents who 2 water. Agriculture, industry and tourism often require more water than the municipal water supply. Globally, 70% of fresh water is 3 for agriculture, but locally in heavily irrigated(灌溉)areas this can increate to 90%. A healthy environment also requires fresh water, and the quality of available water is as important as its 4.     Water stress is not always caused by physical shortages in dry areas. 5 for water resources between different users within river catchments or basins can also be a cause.     Every thirsty city operates within its own context, 6 to the challenge of providing adequate water supplies. Cape Town, 7, has faced three years of drought during which winter rains failed to materialize. At the end of the 2017 rainy season the city faced the 8 of its dams running dry during 2018. The dams were only 37% full—in the same week four years before they were full to the top. In January 2018, it was 9 that Cape Town would reach Day Zero, when it would be forced to turn off the taps, in April. This was despite the city reducing its water use by more than half, from 1.2 billion litres a day in 2015 to fewer than 600 million litres, and working 10 with industry and agriculture to reduce demand.     On February 1, the authorities put in place a strict limit of 50 litres of water per person per day. 11, in Britain this is considered enough for a five-minute shower of half a washing machine cycle on full load.     In addition, a ban was placed on using 12 water for gardens, water management devices were installed at household with a high water use and the water pressure was reduced to cut demand and leaks. At the same, the city launched a media 13 to change habits and introduced higher duties. This is not without its costs; agriculture and tourism, both significant areas of employment, have 14. It is a classic example of the problem of water economics-the cost of water is low but the cost of a lack of water is very high.     Crises such as the Cape Town drought are in danger of becoming the new norm. The 15 of Day Zero must serve as a wake-up call for cities across the world to develop cost-effective water management strategies to cope with an uncertain future. （1） A . Impact B . Pressure C . Impression D . Observation （2） A . recycle B . waste C . consume D . apply （3） A . restored B . abstracted C . separated D . preserved （4） A . change B . source C . origin D . volume （5） A . Competition B . Protection C . Construction D . Regulation （6） A . contributing B . regarding C . responding D . referring （7） A . in addition B . for example C . on the contrary D . as a result （8） A . prospect B . illustration C . symptom D . security （9） A . reported B . presented C . predicted D . explained （10） A . respectively B . increasingly C . restrictively D . extensively （11） A . By comparison B . In other words C . To our surprise D . What's more （12） A . feasible B . drinkable C . inevitable D . influential （13） A . campaign B . statement C . presentation D . advertisement （14） A . invaded B . liberated C . suffered D . proceeded （15） A . change B . theory C . record D . threat 答案：（1）B；（2）C；（3）B；（4）D；（5）A；（6）C；（7）B；（8）A；（9）C；（10）D；（11）A；（12）B；（13）A；（14）C；（15）D；

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