Of all the things we eat and drink, water is ...

Of all the things we eat and drink, water is the most important. Not all people realize this, but it is quite true. The human body can live without food for a long time, but two or three days without water usually result in death.

Many people do not understand how much water the human body needs, but many people do not drink enough, especially in the hot weather. Most people drink when they are thirsty but often need more water after exercises.

65 to 70 percent of the human body is water. Water is important in several different ways. Most people need five to seven litres of water every day, but we need not drink this amount because a lot comes from the food we have. If we don’t have enough water, however, we will feel tired and many become ill. Do you know what the best drink is? Yes, you are right. Cold water!

1.Do most people drink five litres of water every day?

A. Yes, because water is the most important

B. No, because what we eat contains water

C. Yes, because we can’t live without water

D. No, because we are not thirsty

2.How much water is there in the human body?

A. About three fourths of the human body is water.

B. Nearly a half of the human body is water.

C. Less than a half of the human body is water.

D. Almost one fourth of the human body is water.

3.When do we need more water?

A. In cold weather or after exercises.

B. In hot weather or after exercises.

C. Before breakfast, lunch and supper.

D. When we feel tired or become ill.

4.Which of the following is not right?

A. Cold water is the best drink.

B. Few people understand how much water the human body needs.

C. Not all the people realize water is the most important.

D. When we feel tired or become ill, we never need any water.

高二英语阅读理解中等难度题查看答案及解析

Everybody knows the importance of drinking enough water.As we all know, drinking water benefits your skin, muscles and organs.1.

The major reason for that is related to human biological needs.When you're a baby, you're 75 percent water.Then, as the years get higher, you get drier.2.　 It helps you lose weight, according to a study from the University of Birmingham.

The researchers found that drinking 500 ml of water thirty minutes before a meal helped participants lose 10 more pounds than those who did not.3. All participants were advised to improve their diet and physical activity levels.84 overweight adults were involved.Among them 41 were told to “preload” with water, while 43 were told to control their water intake before eating.After 12 weeks, the participants instructed to “preload” with water lost 2.87 pounds more than those in the control group on average.In addition, the participants preloading with water before each of their three main meals every day lost 9.48 pounds over the 12 weeks.4.

Dr.Helen Parretti, a lecturer at the University of Birmingham, had this to say of the study:　 5.Just drinking 500 ml of water, three times a day, before your main meals may help reduce your weight...and this could be an easy way for weight loss. Furthermore, it can be significant for an individual to lose extra weight, making a potential contribution to public health.

A.Another reason to drink water is right here.

B.The study began with a weight management consultation.

C.The beauty of these findings is that losing weight is simple.

D.But not everyone can get access to tap water in some areas.

E.It also helps prevent certain diseases and improve your mood.

F.In contrast, those preloading once a day or never, lost just 1.76 pounds.

G.So kids should drink more water instead of coke to keep healthy.

高二英语七选五中等难度题查看答案及解析

Body and Food

Your body, which has close relations with the food you eat, is the most important thing you own, so it needs proper treatment and proper nourishment (营养).The old saying “An apple a day keeps the doctor away”is not as silly as some people think. The body needs fruit and vegetables because they contain vitamin C. Many people take extra vitamins in pill form, believing that these will make them healthy.

But a good diet is made up of nourishing food and this gives all the vitamins you need. The body doesn’t need or use extra vitamins, so why waste money on them?

In the modern western world, many people are too busy to bother about eating properly. They throw anything into their stomachs, eating hurriedly and carelessly. The list of illnesses caused or made worse by bad eating habits is frightening,

1.“Your body has close relations with the food you eat.” It really means that ______.

A. all kinds of food you eat can be made into your body

B. your body is made up of the food you eat

C. what you eat has great effect on your health

D. the more you eat, the fitter you will feel

2.The old saying referred to in the passage tells us that ______.

A. eating apples regularly does lots of good to our health

B. the apple is the best among all kinds of fruits

C. apples can take the place of doctors

D. an apple is a sure cure for illness

3.In the modern western countries ______.

A. people don‘t want to pay more attention to their eating

B. lots of people’s illnesses are caused or made worse by bad eating habits

C. people throw everything into their stomachs without chewing

D. people are only too busy to cook meals for themselves

4.From the passage we can draw a conclusion that if we want to keep healthy,we should ______.

A. only eat an apple a day

B. eat properly

C. take as many vitamin pills as possible

D. throw something into our stomachs slowly and carefully

高二英语阅读理解中等难度题查看答案及解析

Body and Food

Your body, which has close relations with the food you eat, is the most important thing you own, so it needs proper treatment and proper nourishment (营养).The old saying “An apple a day keeps the doctor away” is not as silly as some people think. The body needs fruit and vegetables because they contain vitamin C. Many people take extra vitamins in pill form, believing that these will make them healthy.

But a good diet is made up of nourishing food and this gives all the vitamins you need. The body doesn’t need or use extra vitamins, so why waste money on them?

In the modern western world, many people are too busy to bother about eating properly. They throw anything into their stomachs, eating hurriedly and carelessly. The list of illnesses caused or made worse by bad eating habits is frightening,

1.“Your body has close relations with the food you eat.” It really means that ______.

2.The old saying referred to in the passage tells us that ______.

3.In the modern western countries ______.

4.From the passage we can draw a conclusion that if we want to keep healthy, we should ______.

高二英语阅读理解中等难度题查看答案及解析

Body and Food

Your body, which has close relations with the food you eat, is the most important thing you own, so it needs proper treatment and proper nourishment (营养).The old saying “An apple a day keeps the doctor away ”is not as silly as some people think. The body needs fruit and vegetables because they contain vitamin C. Many people take extra vitamins in pill form, believing that these will make them healthy.

But a good diet is made up of nourishing food and this gives all the vitamins you need. The body doesn’t need or use extra vitamins, so why waste money on them?

In the modern western world, many people are too busy to bother about eating properly. They throw anything into their stomachs, eating hurriedly and carelessly. The list of illnesses caused or made worse by bad eating habits is frightening,

1.“Your body has close relations with the food you eat.” It really means that ______.

A. all kinds of food you eat can be made into your body

B. your body is made up of the food you eat

C. what you eat has great effect on your health

D. the more you eat, the fitter you will feel

2.The old saying referred to in the passage tells us that ______.

A. eating apples regularly does lots of good to our health

B. the apple is the best among all kinds of fruits

C. apples can take the place of doctors

D. an apple is a sure cure for illness

3.From the passage we can draw a conclusion that if we want to keep healthy, we should ______.

A. only eat an apple a day

B. eat properly

C. take as many vitamin pills as possible

D. throw something into our stomachs slowly and carefully

高二英语阅读理解简单题查看答案及解析

The water we drink and use was running short. We all have to learn what to stop wasting water.

One of the step that we should take is to find ways of reusing it. Today in the most large cities, fresh water is used only once and then it runs in waste system. But that is possible to pipe the used water to a purifying factory, there the used water can be treated with chemical materials by the workers so that it can reused. But even if every large city purified and reused it's water, we still would have enough water.

高二英语短文改错中等难度题查看答案及解析

Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.

If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?

To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.

The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.

The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.

“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”

But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.

Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.

1.Most people with bad habits of eating more than they should believe that　　　　　 .

A.their bodies cannot be damaged by the bad habits

B.they can force themselves to clean up the had habits later

C.their bodies can heal all the damage without the help from outside

D.they can never change the habits that have developed for decades

2.The evidence against the assumption that we are indestructible　　　　　 .

A.is seldom apparent B.is clearly shown in the mirror

C.is still a question D.will appear obvious sooner or later

3.According to the recent announcements　　　　　 .

A.women should eat as much fish as possible

B.men don’t have to eat as much fish as women

C.eating a little more fish can improve women’s health

D.women are at a higher risk of suffering a stroke than men

4.It is implied in the passage that　　　　　 .

A.the blood of smokers is more sticky than that of non-smokers

B.chronic diseases can be cured ifwe drop our habit of smoking

C.smokers have lower levels of carbon monoxide than non-smokers

D.smokers will be unlikely to die from heart attack if they quit smoking

高二英语阅读理解中等难度题查看答案及解析

Behind most of the bad things we do to our bodies as adults, eating more than we should is the idea we carry with us from childhood. On one hand, we assume that we are indestructible. On the other hand, we think that any damage we impose on ourselves can be undone when wβfinally clean up our act.

If the evidence for how wrong the first idea is isn’t apparent when you stand naked in front of the mirror, just wait. But what if you eat right and drop all your bad habits? Is there still time to repair the damage?

To a surprising degree, the answer is yes. Over the past five years, scientists have collected a wealth of data about what happens when aging people with bad habits decide to turn their lives around.

The heartening conclusion: the body has an amazing ability to heal itself, provided the damage is not too great.

The effects of some bad habits-smoking, in particular-can haunt you for decades. But the damage from other habits can be largely healed.

“Any time you improve your behavior and make lifestyle changes, they make a difference from that point on.”says Dr. Jeffey Koplan.“Maybe not right away. It’s like slamming on the brakes. You do need a certain distance.”

But the distance can be remarkably short. Consider the recent announcements from the front lines of medical research: ---A study concluded that women who consume as little as two servings of fish a week cut their risk of suffering a stroke to half that of women who eat less than one serving of fish a month. ---The day you quit smoking, the carbon monoxide levels in your body drop dramatically. Within weeks, your blood becomes less sticky and your risk of dying from a heart attack starts to decline ... Adopting healthy habits won’t cure all that bothers you, of course. But doctors believe that many chronic diseases-from high blood pressure to heart disease and even some cancers-can be warded off with a few sensible changes in lifestyle.

Not sure where to start? Surprisingly, it doesn’t matter, since one positive change usually leads to another. Make enough changes, and you'll discover you’ve adopted a new way of life.

1.Most people with bad habits of eating more than they should believe that　　　　　 .

A. their bodies cannot be damaged by the bad habits

B. they can force themselves to clean up the had habits later

C. their bodies can heal all the damage without the help from outside

D. they can never change the habits that have developed for decades

2.The evidence against the assumption that we are indestructible　　　　　 .

A. is seldom apparent　　 B. is clearly shown in the mirror

C. is still a question　　 D. will appear obvious sooner or later

3.According to the recent announcements　　　　　 .

A. women should eat as much fish as possible

B. men don’t have to eat as much fish as women

C. eating a little more fish can improve women’s health

D. women are at a higher risk of suffering a stroke than men

4.It is implied in the passage that　　　　　 .

A. the blood of smokers is more sticky than that of non-smokers

B. chronic diseases can be cured ifwe drop our habit of smoking

C. smokers have lower levels of carbon monoxide than non-smokers

D. smokers will be unlikely to die from heart attack if they quit smoking

高二英语阅读理解中等难度题查看答案及解析

About 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink sea water, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is!

46. Which of the following is the proper order of the food chain?

A. small animals→algae→microscopic animals→large animals→man

B. algae→microscopic animals→large animals→larger animals→man

C. small animals→algae→large animals→microscopic animals→man

D. microscopic animals→algae→large animals →larger animals→man

47. People used to think that the rubbish thrown into the sea ________.

A. wouldn’t harm the fish in the sea   B. would change the balance of the food chain

C. would be broken down in the sea   D. wouldn’t do much harm to the sea

48. From the passage, we learn that _________.

A. most fish and sea animals live at the surface of the seas

B. it is very difficult to break the balance of a food chain

C. excessive fishing has caused the decrease in fish stock

D. it won’t be long before the problems concerning oceans will be solved

49. Which of the following is NOT a way being used to protect oceans?

A. The use of international agreements.

B. Forbidding fishing to protect fish stocks.

C. The use of new techniques.

D. Raising people’s awareness of the need to protect oceans.

50. What would be the best title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

D. How to deal with seawater pollution.

高二英语阅读理解简单题查看答案及解析

About 97% of the world's water is salty and is found in our oceans and seas. But, as we can't drink seawater, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important seawater is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn't matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishing restrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!

1.People used to think that the rubbish thrown into the sea ________.

A．wouldn't harm the fish in the sea

B．would change the balance of the food chain

C．would be broken down in the sea

D．wouldn't do much harm to the sea

2.From the passage, we learn that ________.

A．most fish and sea animals live at the surface of the seas

B．it is very difficult to break the balance of a food chain

C．excessive fishing has caused the decrease in fish stock

D．it won't be long before the problems concerning oceans will be solved

3.Which of the following is NOT a way being used to protect oceans?

A．The use of international agreements.

B．Forbidding fishing to protect fish stocks.

C．The use of new techniques.

D．Raising people's awareness of the need to protect oceans.

4.What would be the BEST title of the passage?

A. The importance of seawater.

B. Life in the oceans.

C. How to protect food chains.

高二英语阅读理解中等难度题查看答案及解析