第二节 语法填空(共10小题;每小题1.5分,满分15分)

阅读下面短文,按照句子结构的语法性和上下文连贯要求。在空格处填入一个适当的或是用括号中词语的正确形式填空。并将答案填写在答题卡标号微31~40的相应位置上。

   Two summers ago I went to Changdao, a small island near Yantai. During the night, I heard strange baby-like   31        (cry). Islanders told me   32        was stray (迷路的;离群的) cats that were calling in the wild. Well, it was strange to me to see so many stray cats on such a small island. So I asked the locals  33       more details. Then they told me  34          surprising and sad story. The island is isolated in the sea and originally had no cats. Ten yers ago, when the island was developed   35       a national park, tourists began to swarm in. These visitors from all parts of the country brought in money, but the rubbish they left   36       (draw) more and more rats onto the island. Islanders therefore introduced the cats in order to get rid of the rats.   ___37        when the number of rats decreased, the number of cats increased, and the cats began to prey on birds, chickens, and fish. For more than a month after that, my mind was haunted (回响) by the plaintive crying. So now,   38       I travel, I always hear in mind what I should bring in,   39        I don’t want to bring anything that is strange,   40        (need) or even dangerous to my destination.

A gadget (器具) which makes water out of air could become the greatest household invention since the microwave.

Using the same technology as a dehumidifier (除湿器), the Water Mill is able to create a ready supply of drinking water because it can always get it from an unlimited source—the air.

The company behind the machine says not only does it offer an alternative to bottled water in developed countries, but it is a solution for the millions who face a daily water shortage.

The machine works by drawing in wet air through a filter (过滤器) and over a cooling instrument which changes it into water drops. It can produce up to 12 liters a day. The Water Mill will also produce more water when storms pass over, as the amount of water which is contained in the air increases. In keeping with its eco-development, the machine uses the same amount of electricity as three lights.

Inventor Jonathan Ritchey said: “The demand for water is off the chart. So people are looking for freedom from water distribution systems that are shaky and unreliable.”

The machine, which is about 3 feet wide, is likely to cost £800 when it goes on sale here in the spring. Its maker, Canadian Firm Element Four, roughly (粗略地) calculates that a litre of water cost around 20p to produce.

Environmentalists state that half the world’s population will face water shortage because of climate change by 2080. One in five is said to lack access to safe drinking.

The Water Mill is not effective in areas where the amount of water contained in the air is below about 30 percent, but in Britain that won’t be much of a problem.

49. What does the underlined word “it” refer to?

       A. Drinking water. B. Invention.  C. Microwave.       D. Water Mill.

50. What do we learn about the machine?

       A. It works in the same way as microwaves.

       B. It is very expensive for families to afford.

       C. It absorbs steam and turns it into water.

       D. It helps to make the water clean to drink.

51. What does the passage lead us to believe?

       A. The cost of water will go up.    B. Bottled water will disappear sooner.

       C. The machine is energy saving.  D. The machine will be popular worldwide.

52. What’s the best title for the passage?

       A. A New Way to Solve Water Problem.      B. A Machine to Make Water out of Air.

       C. A Dehumidifier to Produce Water.    D. An Absolutely New Invention

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