题目内容
Each year, millions of people in Bangladesh drink ground water that has been polluted by naturally high levels of arsenic poison. Finding safe drinking water in that country can be a problem. However, International Development Enterprises has a low-cost answer. This non-governmental organization has developed technology to harvest rainwater.
People around the world have been harvesting rainwater for centuries. It is a safe, dependable source of drinking water. Unlike ground water, rainwater contains no minerals or salts and is free of chemical treatments. Best of all, it is free.
The rainwater harvesting system created by International Development Enterprises uses pipes to collect water from the tops of buildings. The pipes stretch from the tops of buildings to a two-meter tall storage tank made of metal. At the top of the tank is a so-called "lust-flush" device made of wire screen. This barrier prevents dirt and leaves in the water from falling inside the tank.
A fitted cover sits over the "first-flush" device. It protects the water inside the tank from evaporating. The cover also prevents mosquito insects from laying eggs in the water.
Inside the tank is a low coat plastic bag that collects the water. The bag sits inside another plastic bag similar to those used to hold grains. The two bags are supported inside the metal tank. All total, the water storage system can hold up to three-thousand-five-hundred liters of water. International Development Enterprises says the inner bags may need to be replaced every two to three years. However, if the bags are not damaged by sunlight, they could last even longer.
International Development Enterprises says the water harvesting system should be built on a raised structure to prevent insects from eating into it at the bottom. The total cost to build this rainwater harvesting system is about forty dollars. However, International Development Enterprises expects the price to drop over time. The group says one tank can provide a family of five with enough rainwater to survive a five-month dry season.
People in Bangladesh can use ______ as a safe source of drinking water.
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For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the 【C1】______ of its interest. Most of us are quite happy when we feel 【C2】______ to go to bed and pleased when the journey 【C3】______ . On the first night this time I felt especially lazy and went to bed 【C4】______ earlier than usual. When I 【C5】______ my cabin, I was surprised 【C6】______ that I was to have a companion during my trip, which made me feel a little unhappy. I had expected 【C7】______ but there was a suitcase 【C8】______ mine in the opposite comer. I wondered who he could be and what he would be like. Soon afterwards he came in, He was the sort of man you might meet 【C9】______ , except that he was wearing 【C10】______ good clothes that I made up my mind that we would not 【C11】______ whoever he was and did not say 【C12】______ . As I had expected, he 'did not talk to me either but went to bed immediately.
I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered 【C13】______ , as well as I could and tries to go back to sleep. Then I realized that a 【C14】______ was coming from the window opposite. I thought perhaps I had forgotten 【C15】______ the door, so I got up 【C16】______ the door but found it already locked from the inside. The cold air was coming from the window opposite, I crossed the room and 【C17】______ the moon shone through it on to the other bed. 【C18】______ . there. It took me a minute or two to 【C19】______ the door myself. I realized that my companion 【C20】______ through the window into the sea.
【C1】______
【C2】______
【C12】______
SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文： November is poppy month, the time of the year when we wear a red poppy in memory of those who sacrificed their lives for us during wars. But how many of us are aware of the reason of how and why the poppy became the symbol of remembrance and an integral part of the work of the Royal British Legion？ Flanders is the name of the whole western part of Belgium. It saw some of the most concentrated and bloodiest fighting of the First World War. Where once there were homes and farms there was now a sea of mud--a grave for the dead where men still lived and fought. Only one other living thing survived. The poppy flowering each year with the coming of the warm weather, brought life, hope, colour and reassurance to those still fighting. John McCrae, a doctor serving with the Canadian Armed Forces, was so deeply moved by what he saw in northern France that, in 1915 in his pocket book, he scribbled down the poem "In Flanders Fields". The poppy became a popular symbol for soldiers who died in battle. In 1918, Moira Michael, an American, wrote a poem in reply, "We shall keep the faith", in which she promised to wear a poppy "in honour of our dead". This began the tradition of wearing a poppy in remembrance.
What is this passage mainly about？
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