Did you know that sixty percent of your body weight is water？However，a loss of only two percent of this water through dehydration(脱水) during exercise can significantly affect your performance. The more you sweat，the more your exercise performance declines，unless you drink enough to replace your loss of fluids.
When you lose too much water，you can overheat quite easily，especially in a warm environment. But this is not the only problem you may be faced with. Dehydration leads to your heart pumping much faster，which means exercise becomes more difficult and requires more effort. Despite these problems，however，many of us simply do not take enough fluids in when we head for the gym or set out on a run.
So why is this? How do we manage to lose so much water without simply drinking more to replace it？Well，it is easier than you think. When we are at rest，we quickly become aware that we are thirsty and will put that right by having a drink. When we exercise，on the other hand，our thirst mechanism(结构) does not work as effectively，so we don't notice early enough that we are actually thirsty. In fact，we only start to feel thirsty when we have already lost around two percent of our body weight.
Another problem is that，the more dehydrated we become during exercise，the more difficult it is to prevent further dehydration—because our stomachs become intolerant to fluids and we do not absorb water properly，just when we need it most.
The key thing about fluids and exercise is to manage your intake properly—regular small amounts are better，and some should be drunk before the period of exercise begins. You also need to match your intake to the sort of exercise you are doing. For instance，for one hour of exercise，such as taking part in a 10 km run，you need to drink about two extra liters of water. For longer periods of exercise，sports drinks are recommended.
1.We know from the text that during exercise，dehydration________.
A. can be easily avoided
B. will lead to poor performance
C. can cause many health problems
D. will be controlled whenever we drink again
2.Why do people suffer from dehydration easily during exercise?
A. Their thirst mechanism stops working.
B. Their focus is on the exercise.
C. Their thirst response is slow.
D. Their stomachs are full.
3.When exercising，you are advised to________.
A. have regular breaks
B. drink water accordingly
C. drink sports water in advance
D. have at least two liters of water
4.What would be the best title for the text?
A. Keep fit
B. Say no to sports!
C. Time to get drinking!
D. Ways to avoid dehydration
高三英语阅读理解困难题
Did you know that sixty percent of your body weight is water? However, a loss of only two percent of this water through dehydration (脱水) during exercise can significantly affect your performance. The more you sweat, the more your exercise performance declines, unless you drink enough to replace your loss of fluids (液体).
When you lose too much water, you can overheat quite easily, especially in a warm environment. But this is not the only problem you may face. Dehydration leads to your heart pumping much faster, which means exercise becomes more difficult and requires more effort. Despite these problems, however, many of us simply do not take enough fluids in when we head for the gym or set out on a run.
So why is this? How do we manage to lose so much water without simply drinking more to replace it? Well, it’s easier than you think. When we are at rest, we quickly become aware that we are thirsty and will put that right by having a drink. When we exercise, on the other hand, our thirst mechanism (结构) does not work as effectively, so we don’t notice early enough that we are actually thirsty. In fact, we only start to fed thirsty when we have already lost around two percent of our body weight.
Another problem is that, the more dehydration we become during exercise, the more difficult it is to prevent further dehydration-because our stomachs become intolerant (不能容忍的) to fluids and we do not absorb water properly, just when we need it most.
The key thing about fluids and exercise is to manage your intake properly-regular small amounts are preferable, and some should be drunk before the period of exercise begins. You also need to match your intake to the sort of exercise you are doing. For example, for one hour of exercise, such as taking part in a 10 km run, you need to drink about two extra litres of water. For longer periods of exercise, sports drinks are recommended.
1.We know from the text that during exercise, dehydration .
A. can be easily avoided.
B. will lead to poor performance.
C. can cause many health problems.
D. will be controlled whenever we drink again.
2.Why do people suffer from dehydration easily during exercise?
A. Their thirst mechanism stops working.
B. Their focus is on the exercise.
C. Their thirst response is slow.
D. Their stomachs are full.
3.When exercising, you are advised to .
A. have regular breaks.
B. drink water properly.
C. drink sports water in advance.
D. have at least two liters of water.
4.What would be the best title for the text?
A. Keep fit B. Say no to sports!
C. Time to get drinking! D. Ways to avoid dehydration
高三英语阅读理解困难题查看答案及解析
Did you know that sixty percent of your body weight is water？However，a loss of only two percent of this water through dehydration(脱水) during exercise can significantly affect your performance. The more you sweat，the more your exercise performance declines，unless you drink enough to replace your loss of fluids.
When you lose too much water，you can overheat quite easily，especially in a warm environment. But this is not the only problem you may be faced with. Dehydration leads to your heart pumping much faster，which means exercise becomes more difficult and requires more effort. Despite these problems，however，many of us simply do not take enough fluids in when we head for the gym or set out on a run.
So why is this? How do we manage to lose so much water without simply drinking more to replace it？Well，it is easier than you think. When we are at rest，we quickly become aware that we are thirsty and will put that right by having a drink. When we exercise，on the other hand，our thirst mechanism(结构) does not work as effectively，so we don't notice early enough that we are actually thirsty. In fact，we only start to feel thirsty when we have already lost around two percent of our body weight.
Another problem is that，the more dehydrated we become during exercise，the more difficult it is to prevent further dehydration—because our stomachs become intolerant to fluids and we do not absorb water properly，just when we need it most.
The key thing about fluids and exercise is to manage your intake properly—regular small amounts are better，and some should be drunk before the period of exercise begins. You also need to match your intake to the sort of exercise you are doing. For instance，for one hour of exercise，such as taking part in a 10 km run，you need to drink about two extra liters of water. For longer periods of exercise，sports drinks are recommended.
1.We know from the text that during exercise，dehydration________.
A. can be easily avoided
B. will lead to poor performance
C. can cause many health problems
D. will be controlled whenever we drink again
2.Why do people suffer from dehydration easily during exercise?
A. Their thirst mechanism stops working.
B. Their focus is on the exercise.
C. Their thirst response is slow.
D. Their stomachs are full.
3.When exercising，you are advised to________.
A. have regular breaks
B. drink water accordingly
C. drink sports water in advance
D. have at least two liters of water
4.What would be the best title for the text?
A. Keep fit
B. Say no to sports!
C. Time to get drinking!
D. Ways to avoid dehydration
高三英语阅读理解困难题查看答案及解析
There’s no doubt that water is vital to any life. About 60 percent of the average adult human body is made of water. This includes most of your brain, heart, lungs, muscles and skin, and even about 30 percent of your bones. Yet there’s little scientific agreement about the exact amount of the stuff an individual should consume each day. So how much water do you actually need to drink to be healthy?
You may have heard that you should drink eight 8-ounce glasses of water a day. Yet, the downside of this rule, researchers say, is that drinking water by the glass is not the only way that humans take in it. The “8 X 8” rule essentially overlooks two big sources of daily water consumption. One such source is food. Everything you eat contains some water. Watermelons, for example, are more than 90 percent water by weight. Different diets naturally contain different amounts of waters, and the counts. The other key water sources are other beverages. Non-alcoholic drinks such as coffee, and tea, contain mostly water and all contribute to your hydration（水量）.
So, between all the food, water and other fluids you consume in a day, how much water should you aim to take in?
The National Academics of Sciences suggests that woman consume a total of approximately 2.7 liters (91 ounces) of warm from all beverages and foods each day and men 3.7 liters (125 ounces). But these are just general guidelines.
The truth is, there is no magic standard for hydration—everyone’s need vary depending on their age, weight, level of physical activity, general health and even the climate they live in. The more water you lose, the more water you’ll need to replace with food and drink. If you are looking for concrete advice, though, the best place to look is within. Drink up when you’re thirsty.
1.How does the author support the underlined sentence in Para 1?
A. By providing facts.
B. By asking a question.
C. By making a comparison.
D. By putting forward suggestions.
2.According to the “8 X 8” rule, how much water should we take in a day?
A. 8 ounces B. 64 ounces
C. 91 ounces D. 125 ounces
3.What’s the disadvantage of the “8 X 8” rule?
A. The water from both food and other beverages is ignored.
B. It includes the amount of water from both food and beverages.
C. It does not take water from drinks into account.
D. It overlooks the fact that we take in 90% of the water from fruits.
4.What can we infer from the final suggestion?
A. A man doing tiring physical work drunks less than 3.7 liters a week.
B. A person in good health drinks whenever he feels thirsty.
C. An overweight male in a hot summer drinks 125 ounces every two days.
D. A female eating a lot of watermelons drinks more than 91 ounces daily.
高三英语阅读理解困难题查看答案及解析
It is said that body language ________ 55 percent of a first impression while what you say just 7 percent.
A. lies in B. consists of
C. accounts for D. goes with
高三英语单项填空简单题查看答案及解析
It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
(2013·福建毕业班质检)It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
It is said that sixty percent of all energy ________ in the world today is being lost as wasted heat.
A．produced B．producing
C．to produce D．having produced
高三英语单项填空中等难度题查看答案及解析
We all know what a brain is. A doctor will tell you that the brain is the organ of the body in the head. It controls our body's functions, movements, emotions and thoughts. But a brain can mean so much more.
A brain can also simply be a smart person, If a person is called brainy, she is smartand intelligent. If a family has many children but one of them is super smart, you could say, "She's the brains in the family. " And if you are the brains behind something you .are responsible for developing or organizing something. For example, Bill Gates is the brains behind Microsoft Brain trust is a group of experts who give advice. Word experts say the phrase "brain trust" became popular when Franklin D. Roosevelt first ran for president in 1932, Several professors gave him advice on social and political issues facing the U. S.
These professors were called his "brain trust. "These ways we use the word "brain" all make sense. But other ways we use the word are not so easy to understand. For example, to understand the next brain expression, you first need to know the word“drain." As a verb to drain means to,remove something by letting it flow away. So a brain drain may sound like a disease where the brain flows out the ears. But, brain drain is when a country's most educated people leave their countries to live in another. The brains are,sort of,draining out of the country.
However,if people are responsible for a great idea,you could say they brainstormed it. Here,brainstorm is not an act of weather. It is a process of thinking creatively about a complex topic. For example, business leaders may use brainstorming to create new products, and government leaders may brainstorm to solve problems. If people are brainwashed, it does not mean their brains are nice and clean. To brainwash means to make someone accept new beliefs by using repeated pressure in a forceful or tricky way. Keep in mind that brainwash is never used in a positive way.
1.According to the text, if you're the CEO of Bai Du you can be called
A. the brains behind Bai Du
B. Bai Du's brain trust
C. the brain drain of Bai Du
D. the organ of Bai Du
2.Why did Roosevelt successfully win the election?
A. Because he was smart at giving advice.
B. Because word experts were popular.
C. Because he got his brain trust.
D. Because he was the brains behind America.
3.Which of the following expression is always used in a negative way?
A. Brain trust B. Brain drain
C. Brainstorm D. Brainwash
高三英语阅读理解中等难度题查看答案及解析
C
We all know what a brain is．A doctor will tell you that the brain is the organ of the body in the head．It controls our body's functions，movements，emotions and thoughts．But a brain can mean so much more．
A brain can also simply be a smart person，If a person is called brainy，she is smart and intelligent．If a family has many children but one of them is super smart，you could say，“She's the brains in the family．”And if you are the brains behind something you．are responsible for developing or organizing something．For example，Bill Gates is the brains behind Microsoft Brain trust is a group of experts who give advice．Word experts say the phrase“brain trust”became popular when Franklin D．Roosevelt first ran for president in 1932，Several professors gave him advice on social and political issues facing the U．S．
These professors were called his“brain trust．”
These ways we use the word“brain”all make sense．But other ways we use the word are not so easy to understand．For example，to understand the next brain expression，you first need to know the word“drain”．As a verb to drain means to，remove something by letting it flow away．So a brain drain may sound like a disease where the brain flows out the ears．But，brain drain is when a country's most educated people leave their countries to live in another．The brains are，sort of，draining out of the country．
However，if people are responsible for a great idea，you could say they brainstormed it．Here，brainstorm is not an act of weather．It is a process of thinking creatively about a complex topic．For example，business leaders may use brainstorming to create new products，and government leaders may brainstorm to solve problems．
If people are brainwashed，it does not mean their brains are nice and clean．To brainwash means to make someone accept new beliefs by using repeated pressure in a forceful or tricky way．Keep in mind that brainwash is never used in a positive way．
1.According to the text，if you're the CEO of Bai Du you can be called
A．the brains behind Bai Du
B．Bai Du's brain trust
C．the brain drain of Bai Du
D．the organ of Bai Du
2.Why did Roosevelt successfully win the election?
A．Because he was smart at giving advice．
B．Because word experts were popular．
C．Because he got his brain trust．
D．Because he was the brains behind America．
3.Which of the following expression is always used in a negative way?
A．Brain trust
B．Brain drain
C．Brainstorm
D．Brainwash
高三英语阅读理解中等难度题查看答案及解析
We all know what a brain is. A doctor will tell you that the brain is the organ of the body in the head. It controls our body’s functions, movements, emotions and thoughts. But a brain can mean so much more.
A brain can also simply be a smart person. If a person is called brainy, she is smart and intelligent. If a family has many children but one of them is super smart, you could say “She’s the brains in the family.” And if you are the brains behind something, you are responsible for developing or organizing it. For example, Bill Gates is the brains behind Microsoft.
Brain trust is a group of experts who give advice. Word experts say the phrase “brain trust” became popular when Franklin D. Roosevelt first ran for president in 1932. Several professors gave him advice on social and political issues facing the U.S. These professors were called his “brain trust.”
These ways we use the word “brain” all make sense. But other ways we use the word are not so easy to understand. For example, to understand the next brain expression, you first need to know the word “drain”. As a verb, to drain means to remove something by letting it flow away. So a brain drain may sound like a disease where the brain flows out the ears. But, a brain drain is when a country’s most educated people leave their countries to live in another. The brains are, sort of, draining out of the country.
However, if people are responsible for a great idea, you could say they brainstormed it. Here, brainstorm is not an act of weather. It is a process of thinking creatively about a complex topic. For example, business leaders may use brainstorming to create new products, and government leaders may brainstorm to solve problems.
If people are brainwashed, it does not mean their brains are nice and clean. To brainwash means to make someone accept new beliefs by using repeated pressure in a forceful or tricky way. Keep in mind that brainwash is never used in a positive way.
1.Why did Roosevelt successfully win the election according to the passage?
A．Because word experts were popular.
B．Because he got his brain trust.
C．Because he was smart at giving advice.
D．Because he was the brains behind Americans.
2.According to the text, if you’re the CEO of Bai Du you can be called ________.
A．the organ of Bai Du
B．the brain drain of Bai Du
C．the brains behind Bai Du
D．Bai Du’s brain trust
3.Which of the following expressions is always used in a negative way?
A．Brainstorm. B．Brain trust. C．Brainwash. D．Brain drain.
4.What’s the main idea of this article？
A．The origin of the word “brain”.
B．The word “brain” and its stories.
C．What is the brain.
D．The difference between “brain trust” and “brainwash”.
高三英语阅读理解简单题查看答案及解析