Because of _______ high demand for Type O blo...

Because of _______ high demand for Type O blood, _______ supplies of it available in blood banks are usually limited.

A. a; the                B. the; the     C. /; the               D. /; /

高一英语单项填空中等难度题查看答案及解析

Scientists may have found a way to reduce shortage of type O blood. Type O is the kind of blood that hospitals most often need. What the researchers are testing is an easier way to make type O blood out of other kinds of blood.

There are four main kinds of blood. Most people born with one of these four: Type A,Type B, Type AB or Type O. Type O can be safely given to anyone. So it is commonly used when a person is injured or sick and has to have blood.

The differences among blood types are linked to whether or not red blood cells contain certain kinds of sugar molecules(分子). These molecules are found on the surface of the cells.They are known as antigens (抗原). These antigens are found with type A, B and AB blood but not with type O.

More than twenty-five years ago, scientists found that the antigens could be removed to create what they called universal-type cells. They could be removed with chemicals called enzymes(酶). But large amounts of enzymes were required to make the change.

Doctor Henrik Clausen of the University of Copenhagen in Denmark led the study. The next step, he says, is to complete safety tests. The team is working with the American company ZymeQuest to test the new method. If it meets safety requirements(*k)and is not too costly,it could become a widely used life-saving tool to increase the supply of universal blood.

1.How do scientists deal with the problem of lacking type O blood?

A.Hope more people to donate type O blood.

B.Make the most of the present type O blood.

C.Develop new ways of using type O blood.

D.Make type O blood out of other kinds of blood.

2.What make people have different kinds of blood?

A.Sugar molecules in red blood cells.

B.People's different living conditions.

C.Peoples various immune systems.

D.The variety of peoples cells and genes.

3.What can we infer from the text?

A.Type O blood can be safely given to anyone

B.Antigens could easily be removed to create universal blood.

C.A Danish company wanted to involve itself in studying blood.

D.The new method is not safe enough to be put into use in hospitals now.

4.What is the best title for the text?

A.Four different kinds of blood

B.A new way to make type O blood

C.The latest research on blood type

D.Find the proper type of blood

高一英语阅读理解中等难度题查看答案及解析

Most people are _____ bringing down the price of housing because it’s too high for them.

高一英语单项填空简单题查看答案及解析

Most people are _________ bringing down the price of housing because it’s too high for them.

A. in honour of    B. in search of       C. in charge of      D. in favour of

高一英语单项填空中等难度题查看答案及解析

This new type ______ camera is ______ high quality and is not expensive.

A．of; on            B．on; of            C．of; of             D．on; on

高一英语单项填空中等难度题查看答案及解析

What type of clothing does the store sell?

A. Expensive, high-quality clothing.

B. Cheap, low-quality clothing.

C. Cheap, designer clothing.

高一英语短对话中等难度题查看答案及解析

For thousands of years, poetry (诗) has been the favorite type of literature (文学) in China. There were many famous poets from different periods of time in Chinese 1., and most of their poems 2. still read and appreciated today.

To remind people 3. those classic Chinese poems, CCTV has produced a TV 4. called Chinese Poetry Competition. The final of the show’s second season was shown in February. A girl 5. Wu Yishu who studies at the High School Affiliated to Fudan University, came out to be the winner of the 6.. She recited lines from the Classic of Poetry (《诗经》): “In July, the crickets (蟋蟀) are in the field; In7., they are in the yard; In September, they are at the door; In October, the crickets enter and crawl under oar beds.” “I really admire 8. knowledge of poems. The first time I saw her　 9. traditional Han clothing on TV, I was very impressed by her classical looks. She always keeps so calm through the show, which is very 10. for her age.” said Huang Zijin after watching the final show.

Mr. Huang also said we would find Chinese cultured and taste the beauty of life by enjoying poems.

高一英语短文填空简单题查看答案及解析

Americans have contributed (做贡献) to many art forms, and jazz, a type of music, is one of the art forms started in the United States. Black Americans, who sang and played the music of their homeland, created jazz.

Jazz is a mixture of the music of Africa, the work songs the slaves sang, and religious(宗教) music. Improvisation (即兴表演) is an important part of jazz. This is why a jazz song sounds a little different each time it is played.

Jazz bands formed in the late 1800s. They played in bars and clubs in many towns and cities of the South, especially New Orleans. New Orleans is an international seaport, and people from all over the world come to New Orleans to hear jazz.

Jazz became more and more popular. By the 1920s, jazz was popular all over the United States. By the 1940s, you could hear jazz not only in clubs and bars, but in concert halls as well. Today, people from all over the world play jazz. Jazz musicians from the United States, Asia, Africa, South America, and Europe meet and share their music at festivals on every continent. In this way, jazz continues to grow and change.

1.What can be the best title of the passage?

2.From the text we can learn that ______.

3.It took about______ years to make jazz popular in the United States.

高一英语阅读理解简单题查看答案及解析

One might expect that the ever-growing demands of the tourist trade would bring nothing but good for the countries that receive the holiday-makers. Indeed, a rosy picture is painted for the long-term future of the holiday industry. Every month sees the building of a new hotel somewhere. And every month another rock-bound Pacific island is advertised as the “last paradise (天堂) on earth”.

However, the scale and speed of this growth seem set to destroy the very things tourists want to enjoy. In those countries where there was a rush to make quick money out of seaside holidays, over-crowded beaches and the concrete jungles of endless hotels have begun to lose their appeal.

Those countries with little experience of tourism can suffer most. In recent years, Nepal set out to attract foreign visitors to fund developments in health and education. Its forests, full of wildlife and rare flowers, were offered to tourists as one more untouched paradise. In fact, the nature all too soon felt the effects of thousands of holiday-makers traveling through the forest land. Ancient tracks became major routes for the walkers, with the consequent exploitation (开发) of precious trees and plants.

Not only can the environment of a country suffer from the sudden growth of tourism. The people as well rapidly feel its effects. Farmland makes way for hotels, roads and airports; the old way of life goes. The one-time farmer is now the servant of some multi-national organization; he is no longer his own master. Once it was his back that bore the pain; now it is his smile that is exploited. No doubt he wonders whether he wasn’t happier in his village working his own land.　　　　 Thankfully, the tourist industry is waking up to the responsibilities it has towards those countries that receive its customers. The protection of wildlife and the creation of national parks go hand in hand with tourist development and in fact obtain financial support from tourist companies. At the same time, tourists are being encouraged to respect not only the countryside they visit but also its people.

The way tourism is handled (处理) in the next ten years will decide its fate and that of the countries we all want to visit. Their needs and problems are more important than those of the tourist companies. Increased understanding in planning worldwide tourism can preserve (保护) the market for these companies. If not, in a few years’ time the very things that attract tourists now may well have been destroyed.

1.What does the author actually mean in the last sentence of Paragraph 1?

A．The Pacific island is a paradise.

B．The Pacific island is worth visiting.

C．The advertisement is not persuasive

D．The advertisement is not impressive.

2.The example of Nepal is used to suggest ______.

A．its natural resources are untouched

B．its forests are exploited for farmland

C．it develops well in health and education

D．it suffers from the heavy flow of tourists

3.Which of the following determines the future of tourism?

A．The number of tourists.

B．The improvement of services.

C．The promotion of new products.

D．The management of tourism.

4.The author’s attitude towards the development of the tourist industry is ______.

A．optimistic　　 B．objective

C．doubtful　　 　 D．Negative

高一英语阅读理解中等难度题查看答案及解析

To help someone fall asleep, you must first consider the type of environment that would be ideal for rest, You should start by trying to create the perfect atmosphere for sleep.

Comfortable Sleeping Temperature

The National Sleep Foundation suggests that the temperature to encourage sleep should be somewhere near 18 degrees, which is cooler than the average（平均的）room temperature for most homes. It is just cool enough to need a cover, but keep in mind that the “right” temperature for sleep can be different from person to person.

Consider Sound in the Room

Sound can affect people in different ways. Some prefer total silence and the slightest noises will keep them awake. On the other hand, some people can sleep better if there is a settled sound, such as a fan running or light music. People who like a surrounding sound may also enjoy a sleep sound machine that can provide various noises, such as gentle rainfall or low, classical music;

Create the Right Lighting

Light is one of the most important outside basics that can affect sleep. Light can trick your mind into believing that it is time to be awake. If you are trying to put someone to sleep, it is usually best to get rid of light in the room as much as possible. Hang heavy curtains over natural light sources, close the door to the bedroom, and try to avoid using a lamp or bright nightlight. Some people do sleep better if there is a weak light source that provides just enough illumination to make out surroundings as it makes them feel safe.

Make Creative Use of Movement

While most people only think of movement to help a small child sleep, repeated movement or swing may help a full-grown adult. For a less expensive choice, an indoor hammock（吊床）can be used to provide light movement while someone is going to sleep.

1.What’s the best temperature for sleep?

A. A little higher than indoor temperature.

B. A little lower than outdoor temperature.

C. A little lower than indoor temperature.

D. A little higher than outdoor temperature.

2.How does a sleep sound machine function?

A. By providing surrounding sounds for better sleep.

B. By creating absolute silence for better sleep.

C. By producing loud noises to bother people.

D. By sending out baby music to amuse people.

3.What does the underlined word “illumination” in Paragraph 4 mean?

A. Sound.　　 B. Heat.

C. Peace.　　 D. Light.

4.What do we know from the last paragraph?

A. A moving bed is necessary for good sleep.

B. Movements can also work for grownups to sleep.

C. Everyone needs movements for good sleep.

D. Only little kids need movements to sleep.

高一英语阅读理解中等难度题查看答案及解析