By 2025, water shortage will be a big problem for about 1.8 billion people. In a world where water resource is increasingly short, nations cannot afford to waste it. 1. After we use water in our homes and businesses, it is washed away, and takes many valuable resources with it.
Waste water is rich in carbon and nutrients. 2. A number of nations and major cities have already built waste water treatment plants. They can effectively recover nutrients and bio-energy, and produce “new water” that can be reused. But more than 80% of all waste water still currently flows into natural ecosystems, polluting the environment and taking valuable nutrients and other recoverable materials with it.
3. This is still better than the situation in smaller cities. In Latin American countries, those living in small and medium-sized cities at most treat it in the form of septic tanks(化粪池) that lack regular and proper maintenance.
Imagine that outside one of these small cities lies a lovely piece of land: on the surface it is aesthetically (美学地) built and provides habitats for local wildlife. Beneath the surface is wetland that treats waste water and produces energy.
The energy produced saved families from having to use firewood collected in the wild. This is not a dream project. 4. A team of scientists have been looking into the potential of the constructed wetland environments. Having analyzed 800 examples of biomass in more than 200 countries, they found that, depending on climate and the type of plant used in the construction of this type of wetland, up to 45 hectares of land could be irrigated with waste water. 5.
A.This can provide ready access to clean water.
B.But that is exactly what we do.
C.A constructed wetland environment is already in practice on a small scale.
D.There is no longer any good reason to waste any type of water.
E.If collected and treated properly, it could provide “new water”, fertilizer, and energy.
F.This would reduce the need for fresh water for irrigation and energy for pumping.
G.Although waste water systems in large cities are effective, the whole procedure usually costs much.
高三英语七选五中等难度题
By 2025, water shortage will be a big problem for about 1.8 billion people. In a world where water resource is increasingly short, nations cannot afford to waste it. 1. After we use water in our homes and businesses, it is washed away, and takes many valuable resources with it.
Waste water is rich in carbon and nutrients. 2. A number of nations and major cities have already built waste water treatment plants. They can effectively recover nutrients and bio-energy, and produce “new water” that can be reused. But more than 80% of all waste water still currently flows into natural ecosystems, polluting the environment and taking valuable nutrients and other recoverable materials with it.
3. This is still better than the situation in smaller cities. In Latin American countries, those living in small and medium-sized cities at most treat it in the form of septic tanks(化粪池) that lack regular and proper maintenance.
Imagine that outside one of these small cities lies a lovely piece of land: on the surface it is aesthetically (美学地) built and provides habitats for local wildlife. Beneath the surface is wetland that treats waste water and produces energy.
The energy produced saved families from having to use firewood collected in the wild. This is not a dream project. 4. A team of scientists have been looking into the potential of the constructed wetland environments. Having analyzed 800 examples of biomass in more than 200 countries, they found that, depending on climate and the type of plant used in the construction of this type of wetland, up to 45 hectares of land could be irrigated with waste water. 5.
A.This can provide ready access to clean water.
B.But that is exactly what we do.
C.A constructed wetland environment is already in practice on a small scale.
D.There is no longer any good reason to waste any type of water.
E.If collected and treated properly, it could provide “new water”, fertilizer, and energy.
F.This would reduce the need for fresh water for irrigation and energy for pumping.
G.Although waste water systems in large cities are effective, the whole procedure usually costs much.
高三英语七选五中等难度题查看答案及解析
By the time he realizes the mistake he ________，it will be too late for him to do anything about it.
A. has made B. made C. makes D. will make
高三英语单项填空中等难度题查看答案及解析
If humans ever settle on Mars, they will need water. There is just one problem---there seems to be only huge sheets of ice. Luckily, we know how to drill(钻孔） ice for water. Such methods are already used in Antarctica, and researchers now think they could get them to work on the Red Planet, too. The atmosphere of Mars is too dry to make extracting water vapour from it possible. So ice seems the best bet. But the obvious ice sheets are in the unlivable polar ice caps and would be difficult to reach for drilling.
However, in 2018, at the edge of the cliffs, NASA's Mars Reconnaissance Orbiter spotted relatively accessible water ice that is probably at least 130metres thick and covered in just a few metres of rock and dust. These may be the best place to get the water needed for future exploration of the planet.
The drilling techniques needed have already been developed for cold areas on Earth where we need to melt buried ice for water. In the early 1960s the US Army used a type of subsurface reservoir(水库)called Rod Well, in army camps in Greenland. The method works by drilling through the ground into the ice, melting the ice to create a pool, and then pumping water up. By supplying heat continuously, they create a reservoir and a steady water supply. It has been used in remote areas such as the Amundsen-Scott South Pole Station Stephen Hoffman at the Aerospace Corporation in Texas and his colleagues simulated(模拟)how a Rod Well would do on Mars. They found that with the power of 9 kilowatts (千瓦)to melt ice, it could in theory produce about 380 litres of water each day and maintain a reservoir of constant size at the bottom of a borehole(钻孔). That is close to the average daily water use each person in the US, but about 10 times what each astronaut on the International Space Station uses daily.
1.Which of the following can replace the underlined word "extracting" in the first paragraph ?
A.obtaining B.protecting
C.Preventing D.choosing
2.Why does the author mention the Rod Well in Paragraph 3?
A.To explain how water ice is drilled on Mars.
B.To tell about the history of water ice drilling techniques.
C.To prove the importance of water ice drilling techniques
D.To show techniques for drilling water wells in Martian ice exist.
3.On average, how much water does an astronaut on the International Space Station use daily?
A.10 litres B.38 litres
C.160 litres D.380 litres
4.What would be the best title for the text?
A.Preparing to settle on the Red Planet one day.
B.Finding water on the Red Planet for survival.
C.Using some ways to create a livable environment on Mars.
D.Drilling water wells in Martian ice to survive on Mars.
高三英语阅读理解中等难度题查看答案及解析
If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.
A．coming B．having come C．to come D．to be coming
高三英语单项填空中等难度题查看答案及解析
If water becomes increasingly scarce in decades ________， water shortage will become a hot issue all over the world.
A．coming B．having come
C．to come D．to be coming
高三英语单项填空中等难度题查看答案及解析
If water becomes increasingly scarce in decades ______, water shortage will become a hot issue all over the world.
A. coming B. having come C. to come D. to be coming
高三英语单项填空中等难度题查看答案及解析
If water becomes increasingly scarce in decades ________，water shortage will become a hot issue all over the world.
A．coming B．having come
C．to come D．to be coming
高三英语单项填空中等难度题查看答案及解析
________ by strong snowstorms, the area faced severe water and electricity shortage.
A．Struck B．Having struck
C．Striking D．Be struck
高三英语单项填空中等难度题查看答案及解析
___________ we can have clean drinking water lies in ___________ effective measures will be taken by the government about water pollution.
A．Whether；that B．If；that
C．Whether；what D．If；what
高三英语单项填空中等难度题查看答案及解析
What do you do if your nation has a severe water shortage and happens to be located in a desert? If you have the resources, you turn to technology, which is what a company in the oil-rich United Arab Emirates (阿联酋) (UAE for short) is planning to do. The country, which gets less than four inches of rain per year, could solve its issue with water shortage by dragging icebergs from Antarctica to its shores. The first such attempt will begin in 2018.
Once the iceberg is at UAE shores, the ice above the waterline would be cut off and crushed into drinking water, which would then be stored in large water tanks. The iceberg would also have a broader impact, says Abdullah Mohammad Sulaiman Al Shehi:
“Cold air out from an iceberg close to the shore of the Arabian Sea would cause rainstorms across the Arabian Gulf and the southern region of the Arabian Peninsula all year round. As the rising air expands, cools and condenses (冷凝) due to the decrease in air pressure, water vapor (水蒸气) is collected in the clouds, which becomes heavy and falls as rain.” More icebergs will bring more water vapor and clouds, creating a profound (巨大的)effect on the regional climate over a decade, turning the desert into “green meadows(草地)”. The melting iceberg would also add fresh water to the Arabian sea, returning biodiversity. There would also be a boost(兴旺) for tourism from all the people interested in looking at the icebergs. The Emirates Iceberg Project comes from a group of efforts by NABL called “Filling the Empty Quarter”. The project aims to dramatically influence the deserts of the “Empty Quarter”, the planet’s largest sand desert. The region is also the richest oil-producing area in the world, including parts of Saudi Arabia, Oman, UAE and Yemen.
1.What is the UAE planning to do according to the text?
A. To collect fresh sea water from Antarctica.
B. To drag icebergs from Antarctica to the country.
C. To make icebergs from Antarctica melt.
D. To get 20 billion gallons of fresh water from icebergs.
2.What Al Shehi said reflects the effect of icebergs on_______.
A. the weather B. the industry
C. the biodiversity D. the tourism
3.According to the text, the deserts of the “Empty Quarter” are______.
A. turning into green meadows
B. the resource of salt in the Arabian sea
C. the empty area without population
D. abundant in oil as a matter of fact
4.According to the text, icebergs to be dragged to UAE’ shores will _________.
A. bring water vapor and sand
B. add salt water to the Arabian sea
C. become “green meadows”
D. attract people interested in looking at the icebergs
高三英语阅读理解中等难度题查看答案及解析