题目内容

【题目】近几十年来,水资源不足已危及国家的安全和民族的生存。虚拟水的概念应运而生,所谓虚拟水是指生产商品和服务所需要的水资源数量,它不是真实意义上的水,而是以虚拟的形式包含在产品中的看不见的水。贫水国家或地区可以通过贸易的方式从富水国家或地区购买水资源密集型农产品(尤其是粮食)来获得水和粮食的安全。地球上的水资源问题产生的原因主要有(  )

世界上水资源的数量本来就少 

世界上水资源的数量不少,但时空分布不均 

部分地区水污染十分严重,为水质型缺水 

人口的急增和经济的发展,对水的需求量越来越大

A. ①②③ B. ①③④ C. ②③④ D. ①②④

【答案】C

【解析】 本题考查自然资源。世界水资源问题,不是因为总量少,而主要是由于水资源的时空分布不均;水污染严重,及人类生产生活的用水量不断增加而引起的,由此判断①错误,②③④正确,故答案选C。

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【题目】Cloze 2(2014·新课标全国I

体裁

文章话题

词数

建议时间

难度

自测正确率

说明

各种形式的活动如果人们经常做都会产生厌倦情绪。

249

17分钟

★★★☆☆

As a general rule, all forms of activity lead to boredom when they are performed on a routine (常规) basis. As a matter of fact, we can see this 1 at work in people of all 2 .For example, on Christmas morning, children are excited about 3 with their new toys. But their 4 soon wears off and by January those 5 toys can be found put away in the basement. The world is full of 6 stamp albums and unfinished models, each standing as a monument to someones 7 interest. When parents bring home a pet, their child 8 bathes it and brushes its fur. Within a short time, however, the 9 of caring for the animal is handed over to the parents. Adolescents enter high school with great 10 but are soon looking forward to 11 .The same is true of the young adults going to college. And then, how many 12 , who now complain (抱怨) about the long drives to work, 13 drove for hours at a time when they first 14 their drivers licenses(执照)?Before people retire, they usually 15 to do a lot of 16 things, which they never had 17 to do while working. But 18 after retirement, the golfing, the fishing, the reading and all of the other pastimes become as boring as the jobs they 19 .And, like the child in January, they go searching for new 20 .

【1】 A. principle B. habit C. way D. power

【2】 A. parties B. races C. countries D. ages

【3】 A. working B. living C. playing D. going

【4】 A. confidence B. interest C. anxiety D. sorrow

【5】 A. same B. extra C. funny D. expensive

【6】 A. well-organized B. colorfully-printed C. newly-collected D. half-filled

【7】 A. broad B. passing C. different D. main

【8】 A. silently B. impatiently C. gladly D. worriedly

【9】 A. promise B. burden C. right D. game

【10】 A. courage B. calmness C. confusion D. excitement

【11】 A. graduation B. independence C. responsibility D. success

【12】 A. children B. students C. adults D. retirees

【13】A. carefully B. eagerly C. nervously D. bravely

【14】 A. required B. obtained C. noticed D. discovered

【15】A. need B. learn C. start D. plan

【16】 A. great B. strange C. difficult D. correct

【17】 A. time B. money C. skills D. knowledge

【18】 A. only B. well C. even D. soon

【19】 A. lost B. chose C. left D. quit

【20】 A. pets B. toys C. friends D. colleagues

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