The south-to-north Water Division Project transports water from south China to the north and northwestern regions to ease water , enabling people in Beijing to drink water from Yangtze River 1500 km away.
A. shortage B. absence
C. demand D. resource
高三英语单项填空中等难度题
The south-to-north Water Division Project transports water from south China to the north and northwestern regions to ease water , enabling people in Beijing to drink water from Yangtze River 1500 km away.
A. shortage B. absence
C. demand D. resource
高三英语单项填空中等难度题查看答案及解析
South-to-North Water Diversion Project will largely___ Beijing’s dependence on underground water.
A. affect B. adjust C. ease D. Settle
高三英语单项填空简单题查看答案及解析
Rivers are the veins of the Earth, transporting the water and nutrients (营养物) needed to support the planet’s ecosystems, including human life. While many nutrients are essential to the survival of life, there is one element transported by water in rivers that holds the key to life and to the future of our planet — carbon.
Carbon is everywhere and understanding the way it moves and is either released or stored by the Earth system is a complex science in itself. Carbon starts its journey downstream when natural acid rain, which contains carbon dioxide from the atmosphere, melts minerals in rocks. This helps transform carbon dioxide to bicarbonate (碳酸氢盐) in the water that then flows in our rivers. This is a very long process, which is one of the main ways carbon dioxide is removed from the atmosphere. Carbon is transported by rivers to oceans and once that carbon reaches the ocean, it is stored naturally in deep sea sediments (沉淀物) for millions of years.
As carbon travels down a river, different processes may impact whether it continues to flow downstream or whether it is released into the atmosphere. For example, human engineering, like extensive dam construction, will result in dramatic changes to how water and sediments travel down the river. Some carbon that fails to reach the sea may return to the atmosphere in some way, which causes more warming.
Earth’s climate is closely related to the carbon cycle. We all know about the essential role of plants in consuming carbon dioxide, but do we know enough about rivers? Changing the chemistry and the course of rivers may have significant impacts on how they transport carbon. Remember: wherever we live, we all live downstream.
1.Where is the carbon in rivers originally from?
A.The atmosphere. B.The rocks.
C.The acid rain. D.The upstream areas.
2.Why is human engineering mentioned in Paragraph 3?
A.To show how important to life carbon is.
B.To explain how necessary it is to build dams.
C.To show how a natural process is interrupted.
D.To explain how humans fight global warming.
3.What does the author want to convey in the last paragraph?
A.We’d better move upstream to live.
B.We should protect plants along rivers.
C.We’d better seek more help from plants.
D.We should be cautious about river management.
4.What is the best title for the text?
A.What Humans Do with Rivers
B.How Rivers’ Transporting Carbon Counts
C.What the Carbon Cycle Means to Us
D.How Living Downstream Affects the Earth
高三英语中等难度题查看答案及解析
This is where ______ of the Amazon flow out into the sea.
A. water B. the water C. waters D. the waters
高三英语单项填空中等难度题查看答案及解析
The rising______did a lot of______to the crops.
| A．water; harm | B．water; harms |
| C．waters; harm | D．waters; harms |
高三英语单项填空简单题查看答案及解析
The flowers his friend gave him will die unless ___ every day.
A.watered B.watering
C.water D.to water
高三英语单项填空中等难度题查看答案及解析
As the proverb goes，man struggles upwards；water flows downwards．Water runs downhill from mountaintops to streams, to rivers and to oceans．But downhill isn't the only way that water moves．A new study measures how water travels from country to country for human consumption．This flow isn't the type we usually think about．These scientists looked at the water used to grow and make the products which get shipped from nation to nation as imports or exports．They call this a flow of “virtual water”．
We typically think about water as the liquid that flows from a tap．However，92% of the water used by people goes into growing crops, according to a water researcher Arjen Hoekstra．He recently studied the hidden travels of virtual water used in products made from things like crops and meats．These products are shipped around the world．
For example, consider a sugary soft drink．Hoekstra estimated that to produce one half-liter of the drink requires between 170 and 310 liters of water-about 95% is used to grow and process the ingredients. Another 4% goes into the packaging and labeling．In Hoekstra's calculation, when one country produces a half-liter of soda and sells it abroad，it exports as much virtual water as would fill a large refrigerator．
According to Hoekstra's new report, dry countries like Israel and Kuwait, both in the Middle East, get the majority of their virtual water from other countries，through imported products. More surprisingly, some wetter countries, like the Netherlands and the United Kingdom，also get the majority of their virtual water from other places．That means that most of the water used to grow or produce the products and food consumed in those countries came from other countries．
1.The underlined proverb in Paragraph 1 is used to ．
A.inspire readers to struggle upward B.tell a law of nature
C.introduce the topic of the passage D.summarize the main idea of the passage
2.In which countries does most part of virtual water come from outside？
A.The United Kingdom and China B.America and Israel
C.The Netherlands and Kuwait D.The Netherlands and America
3.What can be a suitable title for the passage？
A.Benefits of Virtual Water B.Hidden Uses of Water
C.Crops and Virtual Water D.Virtual Water’s Worldwide Travels
4.Where does the passage probably come from？
A.A science news report B.A newspaper advertisement
C.A book review D.A science fiction story
高三英语阅读理解中等难度题查看答案及解析
As the saying goes, man struggles upwards; water flows downwards. Water runs downhill from mountaintops to streams to rivers to oceans. But downhill isn’t the only way that water moves .A new study measures how water travels from country to country for human consumption. This flow isn’t the type we usually think about .These scientists looked at the water used to grow and make the products which get shipped from nation to nation as imports or exports. They call this a flow of “virtual water（虚拟水）”.
We typically think about water as the liquid that flows from a tap. However,92％of the water used by people goes into growing crops，according to water researcher Arjen Hoekstra. He recently studied the hidden travels of virtual water used in products made from things like crops and meats .These products are shipped around the world.
For example, consider a sugary soft drink. Hoekstra estimated that to produce one half-liter of the drink requires between 170 and 310liters of the water—about 95％—is used to grow and process the ingredients(原料).Another 4％goes into the packaging and labeling. In Hoekstra’s calculation, when one country produces a half-liter of soda and sells it abroad，it exports as much virtual water as would fill a large refrigerator．
According to Hoekstra’s new report，dry countries like Israel and Kuwait，both in the Middle East,get the majority of their virtual water from other countries，through imported products. More surprisingly, some wetter countries，like the Netherlands and the United Kingdom, also get the majority of their virtual water from other places. That means that most of the water used to grow or produce the products and food consumed in those countries came from other countries.
In the United States most of the virtual water used comes from American sources .In China even less of the water associated with its products.
1.The example of a sugary soft drink in Paragraph 3 is given to show_________.
A. how drinks are shipped
B. how virtual water is exported
C. how virtual water is used
D. how drinks are made
2.In which countries does most part of virtual water come from outside?________
A. Kuwait and the Netherlands
B.China and the United Kingdom
C. America and the Netherlands
D. Israel and America
3.What is the best title for the passage?
A. Crops and Virtual Water
B. Water’s worldwide travels
C. Benefits of Virtual Water
D. Import and Export of Water
4.The passage is most probably a________.
A.science news report B. science fiction story
C. newspaper advertisement D. book review
高三英语阅读理解中等难度题查看答案及解析
US scientists say they have poured cold water on the theory that washing hands with hot water kills more germs (细菌) than unheated water. The small study of 20 people found using water at 15C (59F) left hands as clean as water heated to 38C (100F).
National Health Service (NHS) recommends that people wash their hands in either cold or warm water. In this study, scientists at Rutgers University-New Brunswick wanted to find out if popular assumptions about the benefits of warm or hot water and official guidance on hot water —given to the food industry in the US - held true. They asked 20 people to wash their hands 20 times each with water that was 15C (59F), 26C (79F) or 38 degrees (100F). Volunteers were also asked to experiment with varying amounts of soap. Before they started the tests, their hands were covered in harmless bugs. Researchers say there was no difference in the amount of bugs removed as the temperature of the water or the amount of soap changed.
Prof Donald Schaffner said: “People need to feel comfortable when they are washing their hands but as far as effectiveness goes, this study shows us that the temperature of the water used did not matter.”
However, the researchers accept their study is small and say more extensive work is needed to determine the best ways to remove harmful bacteria.
In the UK, NHS experts say people can use cold or hot water to wash their hands. They say hands should be washed for at least 20 seconds and stress the importance of using enough soap to cover the whole surface of the hands. Their guidance focuses on rubbing hands together in various .ways to make sure each surface of each hand is clean.
1.What does the underlined phrase “poured cold water” in Paragraph 1 probably mean?
A. Proved. B. Created.
C. Contradicted. D. Accepted.
2.After they washed their hands with either hot or cold water, .
A. volunteers nearly had the same amount of germ removed
B. volunteers all talked about American food industry
C. volunteers still had much germ on their hands
D. volunteers all didn’t feel very comfortable
3.How do researchers feel about their study?
A. It is popular. B. It is incomplete.
C. It is convincing. D. It is abstract.
4.Which of the following is the best title for the text?
A. Using Cold Water Instead of Hot Water
B. How to Use Cold Water to Wash Hands
C. It Is Better to Wash Hands in Cold Water
D. Washing Hands in Cold Water as Good as in Hot Water
高三英语阅读理解困难题查看答案及解析
US scientists say they have poured cold water on the theory that washing hands with hot water kills more germs (细菌) than unheated water. The small study of 20 people found using water at 15℃ (59F) left hands as clean as water heated to 38℃ (100F).
National Health Service (NHS) recommends that people wash their hands in either cold or warm water. In this study, scientists at Rutgers University-New Brunswick wanted to find out if popular assumptions about the benefits of warm or hot water and official guidance on hot water — given to the food industry in the US — held true. They asked 20 people to wash their hands 20 times each with water that was 15℃ (59F), 26℃ (79F) or 38 degrees (100F). Volunteers were also asked to experiment with varying amounts of soap. Before they started the tests, their hands were covered in harmless bugs. Researchers say there was no difference in the amount of bugs removed as the temperature of the water or the amount of soap changed.
Prof Donald Schaffner said: “People need to feel comfortable when they are washing their hands but as far as effectiveness goes, this study shows us that the temperature of the water used did not matter.”
However, the researchers accept their study is small and say more extensive work is needed to determine the best ways to remove harmful bacteria.
In the UK, NHS experts say people can use cold or hot water to wash their hands. They say hands should be washed for at least 20 seconds and stress the importance of using enough soap to cover the whole surface of the hands. Their guidance focuses on rubbing hands together in various ways to make sure each surface of each hand is clean.
1.What does the underlined phrase “poured cold water” in Paragraph 1 probably mean?
A. Proved. B. Contradicted.
C. Created. D. Accepted.
2.After they washed their hands with either hot or cold water, ________.
A. volunteers all didn’t feel very comfortable
B. volunteers all talked about American food industry
C. volunteers still had much germ on their hands
D. volunteers nearly had the same amount of germ removed
3.How do the researchers feel about their study?
A. It is popular. B. It is convincing.
C. It is incomplete. D. It is abstract.
4.Which of the following is the best title for the text?
A. Using Cold Water Instead of Hot Water
B. How to Use Cold Water to Wash Hands
C. It Is Better to Wash Hands in Cold Water
D. Washing Hands in Cold Water as Good as Hot
高三英语阅读理解中等难度题查看答案及解析