They’re arguing on who, on earth, is known fo...

They’re arguing on who, on earth, is known for the great discovery ________ penicillin, an effective bacteria killer.

高三英语单项填空中等难度题查看答案及解析

The customer and the seller argued for quite some time before they finally agreed　　　　　　 the price．

A．on　　　　　　　　　 B．with

C．to　　　　　　　　　　　　　 D．at

高三英语单项填空中等难度题查看答案及解析

It is known that the weight of an object ________ from place to place on the earth.

高三英语单项填空中等难度题查看答案及解析

It has been argued that an infant under three who is cared for outside the home may suffer because of the separation from his parents．The British psychoanalyst John Bowlby believes that separation from the parents during the sensitive "attachment" period from birth to three may scar （留下疤痕） a child's personality and incline to emotional problems in later life．Some people have drawn the conclusion from Bowlby's work that children should not be sent to day care before the age of three, and many people do believe this．But there are also arguments against such a strong conclusion．

Firstly, anthropologists （人类学家） point out that the hidden love between children and parents found in modem societies does not usually exist in traditional societies．For example, we saw earlier that among the Ngonis the father and mother of a child did not raise their infant alone．But traditional societies are so different from modern societies that comparisons based on just one factor are hard to understand．

Secondly, common sense tells us that day care would not be so widespread today if parents and caretakers found that children had problems with it．But Bowlby's analysis raises the possibility that early day care has delayed effects．The possibility that such care might lead to more mental illness or crime 15 or 20 years later can only be noticed by the use of statistics．Statistical studies of this kind have not yet been carried out, and even if they were, the results would be certain to be complicated and controversial．

Thirdly, in the last decade, there have been a number of careful American studies of children in day care, and they have reported that day care had a neutral of slightly positive effect on children's development．But tests that have had to be used to measure this development are not widely enough accepted to settle the issue．

1.This passage is mainly talking about________．

A．children's personality

B．advantages of infants' early care

C．infants' education

D．negative effect of infant school

2.The phrase "day care   in the first paragraph probably means_____.

A．nursing school                          B．baby-sitter

C．boarding school                         D．primary school

3.According to Bowlby, children under the age of three______．

A．should not be sent to school

B．should be cared for outside the home

C．will not suffer fro m parental separation

D．don't mind who will look after them

4.The argument against Bowlby's conclusion shows that___．

A．children have problems with day care

B．there is no negative effect on infants who go to school before three

C．there is a long-term effect on infants who go to school before three

D．children who are sent to school before three are sent to mental illness

高三英语阅读理解中等难度题查看答案及解析

The African elephant, the largest land animal remaining on earth, is of great importance to African ecosystem(生态系统). Unlike other animals, the African elephant is to a great extent the builder of its environment. As a big plant-eater, it largely shapes the forest- and-savanna(大草原) surroundings in which it lives, therefore setting the terms of existence for millions of other animals that live in its habitat.

It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat. In its continuous search for the 300 pounds of plants it must have every day, it kills small trees and underbushes, and pulls branches off big trees. This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas . In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.

Take the rain forests for example. In their natural state, the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor. By pulling down trees and eating plants, elephants make open spaces, allowing new plants to grow on the forest floor. In such situations, the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.

What worries scientists now is that the African elephant has become an endangered species. If the elephant disappears, scientists say, many other animals will also disappear from vast areas of forest and savanna, greatly changing and worsening the whole ecosystem.

1. What is the passage mainly about?

A. Disappearance of African elephants.

B. Forests and savannas as habitats for African elephants.

C. The effect of African elephants' search for food.

D. The eating habit of African elephants.

2. What does the underlined phrase “setting the terms” most probably mean?

A. Fixing the time.

B. Worsening the state.

C. Improving the quality.

D. Deciding the conditions.

3. What do we know about the open spaces in the passage?

A. They result from the destruction of rain forests.

B. They provide food mainly for African elephants.

C. They are home to many endangered animals.

D. They are attractive to plant-eating animals of different kinds.

4. According to the passage, which of the following statements is true?

A. The African elephant is the largest animal on earth.

B. African elephants have 300 pounds of plants every day.

C. The African elephant is in a way the builder of the environment like all the other land animals.

D. If the African elephant disappears, the whole ecosystem won’t be affected.

5. The passage is developed mainly by ________.

A. showing the effect and then explaining the causes

B. pointing out similarities and differences

C. describing the changes in space order

D. giving examples

高三英语阅读理解中等难度题查看答案及解析

When people argue about whether coffee is good for health, they’re usually thinking of the health of the coffee drinker. Is it good for your heart? Does it increase blood pressure?

Does it help you concentrate? However, coffee affects the health of the human population in other ways, too.

Traditionally, coffee bushes are planted under the canopy (树荫）of taller trees. However， more and more fanners in Latin America are deforesting the land to grow full-sun coffee. At first, this increases production because more coffee bushes can be planted if there aren5t any trees. With increased production come increased profits.

Unfortunately, deforesting for coffee production immediately decreases the local wildlife habitat, because native birds nest and hide from predators(捕食者）on the tall trees and migrating birds rest there.

Furthermore, in the long term, the full-sun method also damages the ecosystem because more chemical fertilizers and pesticides(杀虫剂)are needed to grow the coffee. The fertilizers and pesticides kill insects that eat coffee plants, and then the birds eat the poisoned insects and also die. The chemicals kill or sicken other animals as well, and can even enter the water that people will eventually drink.

Fortunately, farmers in Central and South America are beginning to grow more coffee bushes in the shade. We can support these farmers by buying coffee with such labels as “shade-grown” and ‘"bird-friendly”. Sure, these varieties might cost a little more. But we’re paying for the health of the birds, the land, ourselves, and the planet. I think it’s worth it.

1.How do farmers get more land to grow full-sun coffee?

A. They move to other countries.

B. They cut down trees.

C. They turn grassland into farmland.

D. They buy more land from other farmers.

2.Compared with the traditional method, what advantage does the full-sun method have?

A. It can increase the production of coffee.　　 B. It can promote peopled health.

C. It can provide more nests for birds.　　 D. It can protect the ecosystem.

3.Which opinion does the author agree with?

A. People should buy full-sun coffee.

B. Farmers should change the places to grow coffee.

C. Shade-grown coffee should be supported.

D. Pesticides should be forbidden in coffee planting.

4.What can we learn from the passage?

A. It is quite worthwhile to buy shade-grown coffee at any cost.

B. Farmers all have realized the importance of protecting the environment now.

C. The full-sun method does good to the health of human beings in the long run.

D. South American farmers are taking action to plant coffee bushes in the traditional way.

高三英语阅读理解简单题查看答案及解析

Watercolor is the oldest paints known. It dates back to the early cave men who discovered they could add lifelike qualities to drawings of animals and other figures on the walls of caves by mixing the natural colors found in the earth with water.

Fresco (壁画), one of the greatest of all art forms, is done with watercolor. It is created by mixing paints and water and applying these to wet plaster （灰泥）. Of the thousands of people who stand under Michelangelo’s heroic ceiling in the Sistine Chapel, very few know that they are looking at perhaps the greatest watercolor painting in the world.

The invention of oil painting by the Flemish masters in the fifteenth century made fresco painting go downhill, and for the next several centuries watercolor was used mainly for doing sketches（草图）or as a tool for study. It was not until the eighteenth and nineteenth centuries that English painters put back watercolor as a serious art form. The English have a widely-known love for outdoors and also small private pictures. The softness of watercolor had a remarkably strong attraction for them.

The popularity of watercolor continued to grow until the twentieth century. The United States passed England as the center for watercolor, producing such well-known watercolor artists as Thomas Eakins and Andrew Wyeth.

1.The purpose of the passage is to introduce ________.

A. the gradual weakness of fresco painting

B. oil’s power or influence over watercolor

C. the discovery of watercolor in England

D. the start and development of watercolor

2.In the 16^th and 17^th centuries the artists thought ________.

A. watercolor was softer, and thus better.

B. Oil painting lasted longer, and was better.

C. Watercolor wasn’t fit for finished works

D. Watercolor was too hard to use in any works.

3.According to the passage, watercolor painting was put back in England because ______.

A. it was easy to use outdoors     B. it was a strong medium（媒介）

C. it was extremely bright in color.  D. it was suited for popular tastes

4. What would the next paragraph most probably talk about?

A. The works of famous US watercolor artists.

B. Modern American oil painters.

C. The weaknesses of oil as popular paints

D. Techniques of producing watercolor

高三英语阅读理解中等难度题查看答案及解析

The African elephant,the largest land animal remaining on earth,is of great importance to African ecosystem(生态系统).Unlike other animals,the African elephant is to a great extent the builder of its environment.As a big plant-eater,it largely shapes the forest-and-savanna(大草原) surroundings in which it lives,therefore setting the terms of existence for millions of other animals that live in its habitat(栖息地).

It is the elephant’s great desire for food that makes it a disturber of the environment and an important builder of its habitat.In its continuous search for the 300 pounds of plants it must have every day,it kills small trees and underbushes,and pulls branches off big trees.This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas.In these open spaces are numerous plants in various stages of growth that attract a variety of other plant-eaters.

Take the rain forests for example.In their natural state,the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor.By pulling down trees and eating plants,elephants make open spaces,allowing new plants to grow on the forest floor.In such situations,the forests become suitable for large hoofed plant-eaters to move around and for small plant-eaters to get their food as well.

What worries scientists now is that the African elephant has become an endangered species.If the elephant disappears,scientists say,many other animals will also disappear from vast areas of forest and savanna,greatly changing and worsening the whole ecosystem.

1.What is the passage mainly about?

A.Disappearance of African elephants.

B.Forests and savannas as habitats for African elephants.

C.The effect of African elephants’ search for food.

D.The eating habit of African elephants.

2.What does the underlined phrase “setting the terms” most probably mean?

A.Fixing the time.

B.Worsening the state.

C.Improving the quality.

D.Deciding the conditions.

3.What do we know about the open spaces in the passage?

A.They result from the destruction of rain forests.

B.They provide food mainly for African elephants.

C.They are home to many endangered animals.

D.They are attractive to plant-eating animals of different kinds.

4.The passage is developed mainly by ______.

A.showing the effect and then explaining the causes

B.pointing out similarities and differences

C.describing the changes in spare order

D.giving examples

高三英语阅读理解中等难度题查看答案及解析

The fact ____ ancient Greek civilization had a great influence on Western culture is known to many people.

A. whether　　　　 B. that

C. if　　　　　　　　 D. how

高三英语单项填空简单题查看答案及解析

For as long as humans have lived on the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a spoken language problem, communication can be carried out through sign language, in which gestures stand for letters, words, and ideas. Tourists and people unable to hear or speak have often had to turn to this form of expression. When gestures describe words or ideas, they can often be used internationally(各国之间地). When used for spelling words however, where each gesture stands for a single letter, people must share the same written language.

Body language sends ideas or thoughts by certain actions, either meaningfully or not. A wink(眨眼, 使眼色)can be a way of showing that the person is only joking. A nod means agreement, while shaking the head indicates disagreement.

Other forms of language can be found in Braille(a reading system of raised dots read with the fingertips used by the blind), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide and warn people. While language is the most common form of communication, other systems and techniques also express human thoughts and feelings.

1. What does the author mainly want to say?

A. People can communicate in many different ways.

B. Everybody uses only one form of communication.

C. Language is invaluable to foreigners.

D. Non-spoken communication is of little value.

2.According to the text, which part of the body can be used to show you are joking?

A. Fingers. 　        　B. Eyes. 　　    C. Head. 　　D. Feet.

3. What can’t be effectively communicated by sign language when people belong to different language groups?

A. Spelling. 　　　　　        B. Ideas.

C. Whole words.                         D. Expressions.

4. How many different forms of communication are mentioned in the text?

A. Three. 　　    B. Five. 　　        C. Six. 　　    D. Nine.

高三英语阅读理解中等难度题查看答案及解析