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
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
The number of students in our school ____about 30,000 and ______them study hard.
A.is; a large amount of | B.are ; a number of |
C.are ; large amount of | D.is ; a large number of |
高二英语单项填空困难题查看答案及解析
Water and its importance to human life are the center of the world’s attention. March 22 is World Water Day, which has the theme “Water and culture ”this year. Ther are more than one billion people in the world who live without safe drinking water. The United Nations hopes to cut this number in half by 2015.
Solving such a big problem seems like an unreal challenge. But everyone, even teenagers, can do something to help. A teenage girl in the U.S. has set an example to others of her age around the world. Rene Haggerty, 13, was awarded the 2004 Gloria Barron Prize for her work of collecting deserted batteries which pollute water.
In 2003, Haggerty went on a field trip to the Great Lakes Science Centre in Ohio. There, she saw an exhibit about how chemicals in old batteries harm the water of Lake Erie. Haggerty learnt that recycling the batteries was an easy solution. “I think everybody can do it, because everyone uses batteries, and it can make a big difference.”With these words, she began to increase awareness in her area.
She talked to her county government and school board. She got permission to start a recycling programme in schools as well as the public libraries, hospitals, and churches. With the help from her family, friends and local waste-management officials, she gathered containers, arranged transportation, and made an educational video.
Over the past two years, she collected four tons of batteries and drew the attention of officials, who were in charge of a battery recycling programme but had made little progress. When asked if she feels like a hero, Haggerty is quite modest. “Not really. Well, maybe for the fish I saved!”
Every year the Gloria Barron Prize honors young Americans aged 8 to 18 who have shown leadership and courage in serving the public and the planet. Each year ten winners receive $2,000 each, to help with their education costs or their public service work.
1.According to the passage, how many people probably can’t drink safe drinking water in 2015?
A.About I billion. B.About 2 billion.
C.About 500 million. D.About 5 million.
2.In order to collect used batteries, Rene Haggerty did the following things EXCEPT________.
A.gather some containers B.arrange the transportation
C.make an educational video D.go on a field trip
3.The best title for this passage should be ________.
A.A girl awarded the 2004 Gloria Barron Prize
B.A girl acts to clean the world’s water
C.We should protect our environment
D.A girl collecting batteries
高二英语阅读理解中等难度题查看答案及解析
根据首字母或提示词,结合句意写出所缺单词及其适当形式
1.Antarctica holds 90% of the world’s ice, and most of its fresh water is in a frozen s______, of course.
2.What western civilization gained from Gutenberg’s contribution is impossible to c______.
3.He hesitated for a second before shooting the ball, otherwise he could ______ (score) 3 points.
4.To my delight, I ______ (promote) to senior manager to attend the opening ceremony the other day.
5.We have already bought the house but we won’t take ______ (possess) of it until May.
6.Although the car is ______(basic) sound, I am worried about certain parts.
7.Police caught up with one gang the other day. but the three chief members f______accidentally.
8.Secondly, people were bored with the pop music of the day—disco music were both in d______ in the mid-1970s.
9.Many people suffered from the effects of poor nutrition and even starvation because of a lack of food, yet their welfare was of no c______ to the taxpayers of London.
10.The German team d______ to win the championship—they performed much better than any of the other teams.
高二英语单词拼写中等难度题查看答案及解析
Putting in water fountains(ˮ) at schools, and teaching children about the health benefits of water, could reduce their risk of getting extra pounds, reports a new study that is published in the latest issue of the journal pediatrics.
The findings are based on a survey in 32 elementary schools of two German cities, Dortmund and Essen. The researchers, led by Rebecca Muckelbauer, a nutrionist at the Research Institute of Child Nutrition Dortmund, weighed about 3,000 children, and asked them about their beverage() consumption.
At the beginning of the school year, the experts had water fountains added to 17 of the schools. The scientists also worked with teachers to carry out educational programs that promote the benefits of drinking water. In contrast to schools in the United States, there are very few schools in Germany that have water fountains.
At the beginning of the study, there were no big differences in the number of overweight children in different groups. But by the end of the school year, children in the schools with water fountains were 31 percent less likely to gain extra pounds, compared to kids who went to other schools, where water drinking was not encouraged.[Դ:ѧ
Children in the schools with fountains, increased their water consumption from about 3 up to 4 glasses a day, while those in the other schools continued to drink an average of 3 glasses. Over the research, the number of overweight kids upped from 384 to 385 out of 1,641 at the schools with water fountains. In comparison, the number of overweight kids at the other schools increased from 339 to 364 out of 1,309, Dr. Muckelbauer said.
The experts cannot make any final conclusions and explain why the students who were encouraged to drink water were less likely to gain extra weight. Dr. Muckelbauer noted that according to a few other studies, drinking of water increases the rate at which calories are burned, while some other research suggested that water may temporarily decrease appetite.
1.According to the text, the journal Pediatrics__________.
A. may cover the subject of the health of children
B. mainly deals with the water drinking problem
C. is mainly about the mental health of kids
D. must be a journal entitled(Ȩ) by a school
2.What do we know about the survey from the text?
A. The teacher were also encouraged to drink water.
B. The students surveyed were all overweight.
C. It surveyed children in the countryside.
D. It lasted for a whole school year.
3.The fifth paragraph is mainly about __________.
A. the technique used in the survey B. the benefits of the survey
C. the process of the survey D. the result of the survey
4.What can be learned from the last paragraph?
A. Drinking water definitely decreases appetite.
B. Further research is needed to confirm the finding.
C. The experts will encourage all the students to drink water.
D. Why students drinking more get less pounds will be clear soon.
高二英语阅读理解中等难度题查看答案及解析
World Health Day is celebrated on 7 April to mark the anniversary of the founding of WHO in 1948.Each year a theme is selected for World Health Day that highlights a priority area of public health concern in the world.
The theme for 2013 is high blood pressure.
High blood pressure increases the risk of heart attacks, strokes(中风).If left uncontrolled, high blood pressure can also cause blindness, irregularities of the heartbeat and heart failure.The risk of developing these complications is higher in the presence of other risk factors such as diabetes(糖尿病).One in three adults worldwide has high blood pressure and this increases with age, from 1 in 10 people in their 20s and 30s to 5 in 10 people in their 50s.High blood pressure is most common in some low-income countries in Africa, with over 40% of adults in many African countries thought to be affected.
However, high blood pressure is both preventable and treatable.In some developed countries, prevention and treatment of it has brought about a reduction in deaths from heart disease.The risk of developing high blood pressure can be reduced by: reducing salt intake; eating a balanced diet; avoiding harmful use of alcohol; taking regular physical activity; keeping a healthy body weight; and avoiding tobacco use.
The final and most important goal of World Health Day 2013 is to reduce heart attacks and strokes, which includes as follows:
1.to raise awareness of the causes and consequences of high blood pressure;
2.to provide information on how to prevent high blood pressure
3.to encourage adults to check their blood pressure and to follow the advice of health-care professionals.
1.High blood pressure can cause medical problems like_____.
A.heart diseases, strokes and blindness.
B.strokes, heart failure and diabetes.
C.heart attacks, blindness and diabetes.
D.heart troubles, strokes and cancers.
2.Who are most likely to be affected by high blood pressure?
A.Those who are in their 20s.
B.Those who are in their 30s.
C.Those who are in their 40s.
D.Those who are in their 50s.
3.Which of the following can NOT reduce the risk of developing high blood pressure?
A.Less salt intake. B.Putting on weight.
C.Regular exercise. D.No smoking.
4.The text is mainly about______.
A.the theme for World Health Day 2013.
B.the causes of high blood pressure.
C.the treatment of heart attacks and strokes.
D.how to reduce the risk of high blood pressure.
高二英语阅读理解中等难度题查看答案及解析
World Health Day is celebrated on 7 April to mark the anniversary of the founding of WHO in 1948. Each year a theme is selected for World Health Day that highlights a priority area of public health concern in the world.
The theme for 2013 is high blood pressure. High blood pressure increases the risk of heart attacks, strokes(中风). If left uncontrolled, high blood pressure can also cause blindness, irregularities of the heartbeat and heart failure. The risk of developing these complications is higher in the presence of other risk factors such as diabetes(糖尿病). One in three adults worldwide has high blood pressure and this increases with age, from 1 in 10 people in their 20s and 30s to 5 in 10 people in their 50s. High blood pressure is most common in some low-income countries in Africa, with over 40% of adults in many African countries thought to be affected.
However, high blood pressure is both preventable and treatable. In some developed countries, prevention and treatment of it has brought about a reduction in deaths from heart disease. The risk of developing high blood pressure can be reduced by: reducing salt intake; eating a balanced diet; avoiding harmful use of alcohol; taking regular physical activity; keeping a healthy body weight; and avoiding tobacco use.
The final and most important goal of World Health Day 2013 is to reduce heart attacks and strokes, which includes as follows:
1.to raise awareness of the causes and consequences of high blood pressure;
2.to provide information on how to prevent high blood pressure
3.to encourage adults to check their blood pressure and to follow the advice of health-care professionals.
1.High blood pressure can cause medical problems like_____.
A.heart diseases, strokes and blindness B.strokes, heart failure and diabetes
C.heart attacks, blindness and diabetes D.heart troubles,strokes and cancers
2.Who are most likely to be affected by high blood pressure?
A.Those who are in their 20s B.Those who are in their 30s
C.Those who are in their 40s D.Those who are in their 50s
3.Which of the following can NOT reduce the risk of developing high blood pressure?
A.Less salt intake B.Putting on weight C.Regular exercise D.No smoking
4.The text is mainly about______.
A.the theme for World Health Day 2013 B.the causes of high blood pressure
C.the treatment of heart attacks and strokes D.how to reduce the risk of high blood pressure
高二英语阅读理解中等难度题查看答案及解析
Tea is one of the most popular 1.(drink) in the world. You make it by pouring hot water over the 2.(dry) leaves of a tea plant. For centuries people believed that tea could cure illnesses, and they used it as medicine. Today scientists know that tea contains chemicals that prevent cells from 3.(die). Most teas have caffeine in them, a substance that makes you feel more active. Some people have problems drinking tea because it can cause 4.(sleep).
The tea plant grows best in tropical and temperate places 5. rain falls throughout the year. Tea plants can be grown from sea level 6. about 2,000 meters above sea level, but the best quality grows in higher regions.
Tea 7.(come) from the leaves and buds of tea plants. Wild plants can be up to 9 meters high but on tea plantations they 8.(cut) back to a bush of about a meter in height so that workers can pull the leaves 9.(easy). It takes a plant tree to five years before it is ready for picking.
A picker can harvest about 20 kg of tea a day. On large tea plantations the leaves are harvested by machines, 10. the quality of tea is higher when the leaves are picked by hand.
高二英语语法填空中等难度题查看答案及解析
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