Rivers are one of our most important natural ...

Rivers are one of our most important natural resources. Many of the world’s great cities are ____1.____ (locate) on rivers, and almost ____2._____ country has at least one river flowing through it that plays _____3._____ important part in the lives of its people.

Since the beginning of history, people ____4.____ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. ____5._____ transportation, rivers give water to drink, water for crops, and chances for fun and recreation for the people ____6.___ live along their banks.

However, large cities and industries that are located on rivers often make problems. As the cities grow ___7._____ size and industries increase in number, the water in the rivers becomes _____8.____ (pollute) with chemicals and other materials. People are learning the ____9._____ (important) of doing more to keep their rivers clean ____10.____ they want to enjoy the benefits of this natural resource.

高二英语其他题中等难度题查看答案及解析

Rivers are one of our most important natural resources. Many of the world’s great cities are 1.______ (locate) on rivers, and almost 2._______ country has at least one river flowing through it that plays 3.________ important part in the lives of its people.

Since the beginning of history, people 4._______ (use) rivers for transportation. The longest one in the United States is the Mississippi, and the lifeline of Egypt is the Nile. 5._________ transportation, rivers give water to drink, water for crops, and chances for fun and recreation for the people 6.______ live along their banks.

However, large cities and industries that are located on rivers often make problems. As the cities grow 7._______ size and industries increase in number, the water in the rivers becomes 8.________ (pollute) with chemicals and other materials. People are learning the 9._________ (important) of doing more to keep their rivers clean 10.________ they want to enjoy the benefits of this natural resource.

高二英语语法填空中等难度题查看答案及解析

China is a country of many resources. Among its resources are many great rivers, which provide useful transport routes. Water transport is an efficient way to carry heavy loads, such as grain. In ancient times, a waterway was needed between China’s rich farmlands and the capital city. This need inspired engineers to build a canal. According to writings by the ancient thinker Confucius, work on a canal linking the Yangze River with the city of Huai-in began about 486 B.C. For many centuries afterward, Chinese emperors worked on extending this ancient canal.

This canal is now known as China’s Grand Canal. One thousand years after the original canal was begun, it was in extreme need of repair. This was in the year 607, during the Sui Dynasty. By 610 the emperor had had the canal extended. The Grand Canal formed a northeast-southwest link between the Yellow River in the north and the Huai River in the south. The canal remained the main waterway in this part of China for the next five hundred years.

In the thirteenth century, the Mongols had conquered China. The Yuan Dynasty established Beijing as the capital. The city’s growing population needed food, so a new canal was built to extend shipping. Building this part of the Grand Canal required enormous effort and cost. Neither the first attempt nor the second one was successful, so the builders chose another route. Finally this link in the Grand Canal was finished.

By the time of the Ming Dynasty, the Grand Canal had six sections. These were busy with goods until the nineteenth century. Then a series of severe floods struck China. Parts of the Grand Canal were badly damaged. By 1868 it had been largely abandoned as a means of northern route.

The Grand Canal was mostly restored in the twentieth century. It was widened and deepened, and a new section was constructed. Today the canal, which is about 1,200 miles in length, has new locks(运河的水闸). It is busy with ships and barges(驳船) carrying goods to and from cities along its banks.

1.The Grand Canal was first built in ancient times to provide 　 .

A. water for agriculture

B. water transport between farmlands and the capital

C. efficient transportation for the emperor’s army

D. a convenient way for the emperor’s recreation

2.The first large-scale(大规模的) repair of the original canal occurred in about_____ 　 .

A. 486 B. C.　　 B. 607 A. D. 　　 C. the Yuan Dynasty　　 D. the Ming Dynasty

3.Considering its history, one can predict that in the future the Grand Canal will probably　 .

A. be extended to further north China.

B. change from a shipping route to a recreation area.

C. need to be repaired and rebuilt.

D. be abandoned in favor of air transport and highways.

高二英语阅读理解中等难度题查看答案及解析

____ our natural resources is very necessary.

A. The most we make of                                        B. The most we make

C. The most which we make                                 D. Most which we make of

高二英语单项填空简单题查看答案及解析

____ our natural resources is very necessary.

A. The most we make of                             B. The most we make

C. The most which we make                        D. Most which we make of

高二英语单项填空简单题查看答案及解析

People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types ofcalories per meal, and they also eat meals at the wrong time each day. Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain foods at certainintervals(间隔) each day.

Low-calorie Diets Do Not Work

The reason people cannot lose weight by starving themselves is that their metabolism(新陈代谢) will detect any major drop in calories and it will then adjust itself by burning fewer calories each day. That is the reason why you can eat 1,000 calories per day and not lose any weight, while your friends can eat 2,500 calories per day and not gain any weight.

Low-fat Diets Do Not Work

Many people in today’s society are buying mostly low-fat or non-fat food at the grocery store. Everybody knows how much fat is inside the food they buy. However, people are getting fatter than ever before by doing this. They are not losing weight by changing to this low-fat lifestyle.

Losing weight has nothing to do with these things. One of the most important things you can do to control your weight is to eat the proper foods, such as fruit and vegetables, eat them at the right time, and exercise every day. If people make this a habit, they will lose weight.

1.What is the main reason why people are overweight?

A. They burn many calories every day.

B. They eat the wrong foods at the wrong time.

C. They eat food with lots of calories.

D. They don’t take weight loss pills.

2.The article is written in order to________.

A. tell readers not to buy low-fat or non-fat food.

B.tell readers about an important scientific discovery.

C .tell readers how to lose weight.

D. call on people to lose weight and stay healthy.

3.To realize the aim of your weight loss plan, you should_________.

a. do exercise every day

b. eat meals at the right time

c. eat fruits and vegetables

d. eat low-fat or sweet food

e. eat the proper foods at each meal

A. a, b, c, e　　　　　 B. a, b, d, e

C. a, c, d, e　　　　 D.a, b, c, d

高二英语阅读理解中等难度题查看答案及解析

People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types of calories per meal, and they also eat meals at the wrong time each day. Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain foods at certain intervals(间隔)each day. Low-calorie Diets Do Not Work

The reason people cannot lose weight by starving themselves is that their metabolism(新陈代谢)will detect any major drop in calories and it will then adjust(调整)itself by burning fewer calories each day. That is the reason why you can eat 1,000 calories per day and not lose any weight, while your friends can eat 2,500 calories per day and not gain any weight.

Low-fat Diets Do Not Work

Many people in today’s society are buying mostly low- fat or non-fat food at the grocery store. Everybody knows how much fat is inside the food they buy. However, people are getting fatter than ever before by doing this. They are not losing weight by changing to this low fat lifestyle.

Losing weight has nothing to do with these things. One of the most important things you can do to control your weight is to eat the proper foods, such as fruit and vegetables, eat them at the right time, and exercise every day. If people make this a habit, they will lose weight.

1.What is the main reason why people are overweight?

A．They eat the wrong foods at the wrong time.   B．They eat food with lots of calories.   C．They don’t take any weight loss pills.                     D．They burn many calories every day.

2.The article is written in order to _______.

A．tell readers not to buy low-fat or non-fat food  B．tell readers how to lose weight C．tell readers about an important scientific discovery            D．call on people to lose weight and stay healthy

3.To realize the aim of your weight loss plan, you should ________.

a. do exercise every day

b. eat meals at the right time

c. eat fruits and vegetables

d. eat low-fat or sweet food

e. eat the proper foods at each meal

A．a, b, c, d           B．a, b, d, e           C．a, c, d, e           D．a, b, c, e

高二英语阅读理解中等难度题查看答案及解析

Bamboo is one of the nature’s most surprising plants. Many people call this plant a tree, but it is a kind of grass.

Like other kinds of grass, a bamboo plant may be cut very low to the ground, but it will grow back very quickly. A Japanese scientist recorded one bamboo plant that grew almost 1.5 meters in 24 hours! Bamboo grows almost everywhere in the world except Europe. There are more than 1,000 kinds of bamboo that grow around the world on both mountains and plains.

Not all bamboo looks the same. Some bamboo plants are very thin. They may only grow to be a few centimeters wide while others may grow to more than 30 centimeters across. This plant also comes in different colors, from yellow to black to green.

Many Asian countries have been using bamboo for hundreds of years. They often use bamboo for building new buildings. As a matter of fact, the cables(绳索) that hold up the hanging bridge across the Min River in Sichuan are made of bamboo. The bridge has been in use for more than 1,000 years, and is still holding strong.

In Africa, engineers are teaching poor farmers how to find water using bamboo. These African countries need cheap ways to find water because they have no money, and their fields often die from no rain and no water. It seems that bamboo is one of the best things they can use. Bamboo pipes and drills(钻) can help to make the poor thirsty fields to be watered.

1.How is bamboo like grass?

A．It is thin and easy to cut.                  B．It grows everywhere.

C．It grows quickly after its cut short.           D．It is short and green.

2.The underlined sentence “while others may grow to more than 30 centimeters across.” means “Some other bamboo plants may grow to be very _______.”

A．short             B．strong            C．thick             D．tall

3.From the text we know ______.

A．most people call bamboo plant trees

B．a bamboo plant may grow 4.5 meters in three days

C．the bamboo plant changes its colors when it grows

D．a bridge held by bamboo cable was built thousands of years ago

4.Why did the engineers teach the poor farmers in Africa to make use of bamboo?

A．Because it is cheap.                      B．Because it is colorful.

C．Because it drills fast.                     D．Because it is used by Asians.

5.Which of the following is NOT true?

A．There are many different kinds of bamboo with different colors.

B．Cables made of bamboo can last for over a thousand years.

C．Bamboo can be used for buildings, bridges and watering projects.

D．Bamboo plants are able to grow well in any part of the world.

高二英语阅读理解中等难度题查看答案及解析

Our world natural park is one of the most famous parks in the world. Millions of visitors from different countries visit this park every year. In order to protect it，please do as follows：

◆Protect the natural and cultural heritage. Don’t damage or deface any buildings，displays and other facilities. Take care of all plants. Put rubbish in the bins provided.

◆Take care when you are going up and down steps or stairs and when you are walking nearby the waters.

◆Please buy tickets before entering the scenic spot. One ticket is only for one person. Adult：＄60 per ticket. Children over 6 and under 18，half price. People over 60 and children under 6 are free.

◆If you are going into the wooded and hilly lands，for your own safety，please go with three people at least and don't take any tinder(易燃物）along with you. The hill is steep so please take care of yourself.

◆This scenic spot is the reserve of water source: No fishing，swimming，washing and any behaviors that are harmful to the water source. Meanwhile，please follow the management rules of the scenic spot conscientiously.

◆Opening time：From Monday to Friday，8：00 a. m.～18：00 p.m.；From Saturday to Sunday，6：00 a. m:一24：00 p. m.

◆Small animals such as rabbits，peacocks，squirrels，frogs must be taken care of: None of them shall be killed.

If you have any trouble in visiting our world natural park，please call 477一866一7044．Our staff will do our best to help you.

1.How much will be paid for a 65-year-old man with his 8-year-old grandson?

A. Free.　　 B. ＄30.

C. ＄60.　　 D. ＄120.

2.From the passage，we can infer that the water in this park is＿．

A. clean　　 B. polluted

C. dangerous　　 D. colorful

3.Which of the following is TRUE according to the passage？

A. Tourists can hike alone in the hilly lands.

B. Small animals are under protection in the park.

C. Children can play with small animals.

D. Tourists can have a swim in the water.

高二英语阅读理解中等难度题查看答案及解析

Hummingbirds (蜂鸟) are one of nature’s most energetic fliers and the only birds to hover in the air by relying on their strength alone.

Now scientists have found that it is the ratio (比值) of the bird’s wing length to its width that makes them so efficient. The discovery is helping experts compete with 42 million years of natural selection to build helicopters that are increasingly efficient.

David Lentink, an assistant professor at Stanford University in California, tested wings from 12 different species of hummingbirds, which he sourced from museums. He placed them on a machine used to test the aerodynamics (气力学) of the helicopter blades (桨叶). Professor Lentink’s team used the same machine to test the blades from an advanced micro-helicopter used by the UK’s army. They found that the micro-helicopter’s blades are as efficient at hovering as the average hummingbirds.

But while the micro-helicopter’s blades kept pace with the average hummingbird wings, they could not keep up with the most efficient hummingbird’s wing. The wings of Anna’s hummingbird were found to be about 27 percent more efficient than the man-made micro- helicopter’s blades.

While Professor Lentink wasn’t surprised at nature’s superiority, he said that helicopter blades have come a long way. “The technology is at the level of an average hummingbird,” he said. “A helicopter is really the most efficient hovering device that we can build. The best hummingbirds are still better, but I think it’s amazing that we’re getting closer. It’s not easy to match their performance, but if we build better wings with better shapes, we might match hummingbirds.”

Professor Lentink said that we don’t know how hummingbirds maintain their flight in a strong wind, how they navigate (确定方向) through branches, or how they change direction so quickly. He thinks that great steps could be made by studying wing aspect ratios—the ratio of wing length to wing width. Understanding these abilities and characteristics could be a benefit for robotics and will be the focus of future experiments.

1.What did the scientists find about hummingbirds?

A. Their wings are long and wide.

B. They can hover in the air for a long time.

C. The ratio of their wing length to wing width is very important.

D. They are the most energetic flier in nature.

2.Which is the right order of Professor Lentink’s research?

① Tested wings from different species of hummingbirds.

② Got resources from museums.

③ Analyzed the results and drew a conclusion.

④ Tested the blades from a micro-helicopter.

A. ①②③④　　 B. ②①③④　　 C. ②④①③　　 D. ②①④③

3.According to Professor Lentink, what will be the focus of future experiments?

A. To know how hummingbirds can fly in a strong wind.

B. To know how hummingbirds change direction so quickly.

C. To develop a new kind of helicopter.

D. To study the secrets of hummingbirds.

高二英语阅读理解困难题查看答案及解析