Water is the “life blood” of our earth. It is...

Water is the “life blood” of our earth. It is in every living thing. It is in the air. It runs through mountains and valleys. It forms lakes and oceans. Water is everywhere.

Nature has a great water system. Rain water finds its way to streams and the oceans.

Here at the mouth of a river there is much important plant and animal life. Pollution destroys this life, so we have to clean out streams and rivers. Man has to work with nature—not against it.

1.According to the passage, water is the ________ of our earth.

A. blood            B. clouds            C. rain            D. life

2.The mouth of the river is near ________.

A. a stream            B. the ocean        C. the mountains    D. valleys

3.There is much plant and animal life at the ________.

A. head of a river                        B. bottom of a sea

C. body of a stream                        D. mouth of a river

4.The water in streams and rivers all comes from ________.

A. rain                B. nature            C. valleys            D. oceans

5.Which of the following is NOT true?

A. We can find water in our body.

B. Blood can be found in every living thing.

C. We can work against nature.

D. At the mouth of a river we can find many living things.

高二英语阅读理解中等难度题查看答案及解析

Science is a major topic in our culture. Since it touches almost every field of our life, educated people need at least some knowledge with its structure and operation. They should also have an understanding of the scientific subculture in which scientists live and the kinds of people they are. An understanding of general characteristics of science as well as specific scientific ideas is easier to obtain if one knows something about the things that excite and discourage the scientist.

This book is written for the person whose knowledge with science is not complete; for the person who has been presented with science as a musty（发霉的）storehouse of dried facts; for the person who sees the chief objective of science as the production of tricks; and for the person who views the scientists as some sort of magician. The book can be used to add to a course in any science, to come with any course that attempts to give an understanding of the modern world, or simply to provide a better understanding of science. We hope this book will lead readers to a broader view on scientific attitudes and a more realistic view of what science is, who scientists are, and what they do. It will give them an idea and understanding of the relationship between science and our culture and an appreciation of the roles science may play in our culture. Besides, readers may learn to appreciate the relationship between scientific views and some of the values and philosophies（哲学）that are deep in our culture.

We have tried to present in this book a correct and up-to-date picture of the scientific world and the people who populate it. That population has in recent years come to include more and more women. This increasing role of women is not just the only event but, rather, part of the trend obvious in all parts of society, as more women enter traditionally male-controlled fields and make influential contributions.

We have also tried to make the book entertaining as well as informative. Our method is usually informal. We feel, as do many other scientists, that we shouldn’t take ourselves too seriously. As the reader may observe, we see science as a delightful pastime rather than as a cruel and unpleasant way to earn a living.

1. According to the passage, ‘scientific subculture’ means __________.

A. scientific society               B. technical groups

C. complex situation                  D. knowledge system

2. We need to know something about science because __________.

A. scientists have specific scientific ideas

B. science affects almost every field of our life

C. it is easier to understand general characteristics of science

D. it is not easy to understand the things that excite and discourage scientists

3. The book mentioned in this passage is written for readers who __________.

A. are scientists making influential contributions

B. want to have a little understanding of science

C. want to break the male-controlled world

D. have a misunderstanding about science

4 This passage most probably is __________.

A. the review of a book    B. the concluding part of a book

C. the information added to a book         D. the introduction of a book

5. According to the passage, we can infer that the book probably is __________.

A. interesting  B. serious         C. realistic        D. humorous

高二英语阅读理解简单题查看答案及解析

What is the best way you can imagine ________ the overuse of water in our daily life.

高二英语单项填空困难题查看答案及解析

Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water—whether for drinking, agriculture, industry or the raising of fish—will always have to be met. Given this premise (前提), there are two basic routes we can go; more equal access to water or better engineering solutions.

Look at the engineering solutions first. A lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal changes of the river—the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the near future, governments will have no excuses for their ignorance.

The engineers’ ability to control water flows has created new kinds of unpredictability, too. Dams in Africa have meant fewer fish, less grazing and less floodplain (洪泛区) agriculture, none of which were expected. And there average economic life is assumed to be thirty years. Dams don’t exist forever, but what will replace them is not clear.

The challenge for the future is to find new means of controlling water. Although GM technology(转基因) will allow us to breed better dry-land crops, there is no market for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?

1.What’s the main idea of this passage?

A．The engineering solutions to water resource and their limitation.

B．The challenge for the future.

C．The basic means of controlling water.

D．The challenge for developing crops.

2.The author suggests that governments will have no excuse for their careless ignorance in the future because _____.

A．The ecological destruction will be known to the public by researchers

B．The ecological destruction will no longer be a problem in the future

C．The future is an information age

D．Governments will face greater challenge in the future

3.Which of the following statements is NOT true for meeting our basic needs for water?

A．Water resource should be used more reasonably.

B．More dams should be built in river basins.

C．More wetlands should be protected from destruction.

D．More dry-land crops could be developed in Africa.

4.The last sentence probably implies that _____.

A．No one will invest in developing locally appropriate crops in Africa

B．Researchers have no interest in developing dry-land crops

C．Research on locally appropriate crops in the Third World may be profitable

D．There is less water resource in the Third World

高二英语阅读理解中等难度题查看答案及解析

---What is our earth like ________from the moon?

---Well, our earth, with water ________ 70% of its surface, appears as a "blue ball".

A. seen; covering                              B. seen; to cover

C. seeing; covered                             D. seeing; covering

高二英语单项填空简单题查看答案及解析

It is quite apparent that competition surrounds every aspect of human life whether in the United States or the Amazon Rain Forest. Without it we would not have grown into primates(灵长类动物). Or we would probably still be struggling to sharpen a bronze tool while crawling around on four legs in search of meat. Without competition, Columbus wouldn't have discovered America and Edison would never have invented the light bulb.

Friendship, like all relationship between two people, involves competition. It isn't competition in a traditional sense because there are no goals to be scored and no prize. Perhaps the ecological definition—the simultaneous (同时的)demand by two or more organisms for limited environmental resources, such as nutrients， living space, or light- better explain it.

As in nature, high school life is governed by a set of laws, similar to a shortened version of Darwin's theory of evolution, overpopulation, and competition. There is an abundance of high school students and to distinguish them, ranking and categorizing(分类)take place. In high school, friendships learn to co-exist with competition even though at times the relationship is rough. In fact, in some circumstances, competition is too much of a burden for a friendship to bear, causing it to fall apart. College admission is the final high school objective. Four years of hard work is to achieve good grades, and a student's fate is determined not only by these achievements, but by the records of thousands of other seniors trying to achieve a similar recognition.

Nevertheless, by necessity, competition between students exists in all aspects of high school life. It sets and improves the standards in everything from sports to school work. A healthy, friendly competition can have only benefits, but when it becomes too fierce, jealousy can tear friendships apart. Yet, despite all this, without competition, we would be lost.

1.What does the ecological definition mainly explain?

A. How friends compete with each other.

B. How to win the competition.

C. What the result of competition is.

D. What competition exactly is.

2.According to the writer, what causes the high school students to compete?

A. The number of them is too large.

B. Friendship is a burden for them.

C. They know the laws of nature well.

D. They are divided into different groups.

3.Which best describes the relationship of friendship and competition?

A. Friendship is always based on competition.

B. The degree of competition is vital to friendship.

C. Competition is terribly harmful to friendship.

D. Competition is a result of lost friendship.

4.What does the author think of "competition"?

A. The results of competition are out of control.

B. Competition becomes fiercer in high school.

C. Competition is certain to happen at schools.

D. Friendship is not as important as competition at schools.

高二英语阅读理解中等难度题查看答案及解析

It’s you and I who are to blame for the state of the earth. No question about it. It’s our life-style that is threatening life on Earth, so we must make the changes. The good news is that many of those changes are really quite simple, even enjoyable, but for every careful step we take as individuals , we must press government and industry to take a big step on our benefit . And we must start now. Tomorrow’s too late.

My aim this year is to persuade as many of my friends and colleagues as possible to choose the train, and leave their cars behind too. My gardens have been pesticide(杀虫剂)–free zones for years and I enjoy seeing more wildlife on my doorstep as a result; I’ve tried to reduce my contribution to water pollution too, by using environment-friendly, phosphate(磷)–free washing powder , and by no longer thinking of the toilet as a suitable waste-disposal(处理) point .

I ran after a young lady through town recently to give her back the piece of paper she had carelessly thrown away. She disappeared into a shop, and when I followed her inside and made my presentation, she was doubly embarrassed--she worked there, and the boss gave her a ticking–off too. I’ve started asking fellow drivers at gas stations why they aren’t using unleaded (无铅的) petrol . These are small things, but we have to start somewhere, and every little does help .

1.To help the environment, the author is trying to do everything mentioned below EXCEPT________ .

A．taking the train instead of a car

B．throwing away the old cars

C．avoiding the use of pesticides

D．running after those who throw articles carelessly

2.The author ran after a woman through town because he wanted ________ .

A．to find out where she worked

B．to give her back the piece of paper she had lost

C．to tell her not to throw away pieces of paper carelessly

D．to ask her to pay him for picking up the piece of paper.

3.The word “ticking-off ” in the last paragraph probably means ________ .

A．blaming    B. a piece of paper      C．prize      D. ticket

4.The purpose of this passage is to ________ .

A. persuade his friends to take the train

B. inform us of the good news

C. make clear who is responsible for the environment

D. try to advise us all to protect our environment

高二英语阅读理解简单题查看答案及解析

It’s you and I who are to blame for the state of the earth. No question about it. It’s our life-style that is threatening life on Earth, so we must make the changes. The good news is that many of those changes are really quite simple, even enjoyable, but for every careful step we take as individuals, we must press government and industry to take a big step on our benefit. And we must start now. Tomorrow’s too late.

My aim this year is to persuade as many of my friends and colleagues as possible to choose the train, and leave their cars behind too. My gardens have been pesticide(杀虫剂)–free zones for years and I enjoy seeing more wildlife on my doorstep as a result; I’ve tried to reduce my contribution to water pollution too, by using environment-friendly, phosphate(磷)–free washing powder , and by no longer thinking of the toilet as a suitable waste-disposal(处理) point .

I ran after a young lady through town recently to give her back the piece of paper she had carelessly thrown away. She disappeared into a shop, and when I followed her inside and made my presentation, she was doubly embarrassed--she worked there, and the boss gave her a ticking–off too. I’ve started asking fellow drivers at gas stations why they aren’t using unleaded (无铅的) petrol . These are small things, but we have to start somewhere, and every little does help.

1.We can learn from the first paragraph that____________.

A．you and I are responsible for looking after the environment

B．the government and industry are responsible for looking after the environment

C．the government is responsible for looking after the environment

D．both A and B

2.To help the environment, the author is trying to do everything mentioned below EXCEPT_________.

A．taking the train instead of a car

B．avoiding the use of pesticides

C．throwing away the old cars

D．running after those who throw articles carelessly

3.The author ran after a woman through town because he wanted__________.

A．to find out where she worked

B．to give her back the piece of paper she had lost

C．to ask her to pay him for picking up the piece of paper.

D．to tell her not to throw away pieces of paper carelessly

4.The purpose of this passage is to__________.

A．persuade his friends to take the train

B．try to advise us all to protect our environment

C．make clear who is responsible for the environment

D．inform us of the good news

高二英语阅读理解中等难度题查看答案及解析

It is very important for people to drink water in our everyday life. Many people believe they are supposed to drink eight glasses of water a day, or about two liters. Why? Because that is what they have been told all their life. But a recent report offers some different advice. Experts say people should obey their bodies; they should drink as much water as they feel like drinking. The report says most healthy people meet their daily needs for liquid by letting thirst be their guide. The report is from the Institute of Medicine, part of the National Academies. The report contains some general suggestions. The experts say women should get about 2.7 liters of water daily. Men should get about 3.7 liters. But wait——in each case, that is more than eight glasses.

There is one important difference. The report does not tell people how many glasses of water to drink. In fact, the experts say it may be impossible to know how many glasses are needed to meet these guidelines. This is because the daily water requirement can include the water content in foods. People do not get water only by forcing themselves to drink a set number of glasses per day. People also drink fruit juices and sodas and milk. They drink coffee and tea. These all contain water. Yet some also contain caffeine. This causes the body to expel(排出)more water. But the writers of the report say this does not mean the body loses too much water.

As you might expect, the Institute of Medicine says people need to drink more water when they are physically active. The same is true of those who live in hot climates. Depending on heat and activity, people could need two times as much water as others do. All this, however, does not answer one question. No one seems sure why people have the idea that good health requires eight glasses of water daily.

It may have started with a misunderstanding. In 1945, the National Academy of Sciences published some guidelines. Its Food and Nutrition Board(营养膳食) said a good amount of water for most adults was 2.5 liters daily. This was based on an average of one milliliter(毫升)for each calorie of food eaten. But that was only part of what the board said. It also said that most of this amount is contained in prepared foods.

1.In experts’ opinion, every day a person should drink ____.

A. as much water as he can                 B. more than eight glasses of water

C. according to actual need for his body           D. when he comes in sight of water

2.What is mainly described in the second paragraph?

A. People know about the daily water requirement.

B. People need water instead of all kinds of drink.

C. People get daily water not only from drinking.

D. People drink all kinds of drink every day.

3.Who might drink less water according to the third paragraph?

4.The main purpose of writing the texts is to _______.

A. make a good suggestion of drinking daily  B. make clear the requirements to drink daily

C. tell the importance of drinking water daily     D. figure out a good amount of water daily

高二英语阅读理解中等难度题查看答案及解析

It is high time that we ____ the amount of carbon dioxide in our daily life.

A. reduce     B reduced    C will reduce   D reduces

高二英语单项填空中等难度题查看答案及解析