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
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
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 largest land animal remaining on the earth, the African elephant is of much importance to African ecosystem. Unlike other animals, the African elephant is to a great extent the builder of its environment. As a giant plant-eater, it significantly shapes the forest-and-savanna (大草原) surroundings in which it lives, therefore deciding the conditions of existence for millions of other animals that live in its habitat.
It is the elephant’s great desire for food that makes it both 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, as well as pulls branches off big trees. This results in numerous open spaces in not only deep tropical forests but also the woodlands that cover part of the African savannas. In these open spaces are numerous plants in various stages of growth, which 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 create 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-sized plant-eaters to obtain their food as well.
Scientists are worried now that the African elephant has become an endangered species. If the elephant dies out, 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.The African elephant influences the ecosystem in the following ways except that .
A. it creates open areas in deep tropical forests as well as woodlands
B. it pulls off the branches and leaves, shutting out the sunshine
C. its eating habit can be made use of by large-hoofed and small-sized animals
D. it encourages some kinds of plants growing in an indirect way
3.According to the passage, which of the following statements is true?
A. Numerous grown plants are the favorites of plant-eaters.
B. The extinction of the African elephant has nothing to do with the ecosystem.
C. Quantities of plants are consumed by African elephants, including branches and underbushes.
D. The forest floor in rain forests is scarcely dotted with new shoots.
4.The passage is developed mainly by .
A. presenting the changes in time order
B. making comparisons and giving examples
C. classifying similarities and differences
D. showing the effect and then explaining the reasons
高三英语阅读理解中等难度题查看答案及解析
On the high-speed train Avignon to Paris, my husband and I landed in the only remaining seats on the train, in the middle of a car, directly opposite a Frenchwoman of middle years. It was an extremely uncomfortable arrangement to be looking straight into the eyes of a stranger. My husband and I pulled out books. The woman produced a large makeup case and made up her face. Except for a lunch break, she continued this activity for the entire three-hour trip. Every once in a while she surveyed the car with a bright-eyed glance, but never once did she catch my eye. My husband and I could have been a blanket wall.
I was amused, but some people would have felt uncomfortable , even repulsed(厌恶的）.there is something about making up in public that calls up strong emotional reactions. Partly it’s a question of hygiene. And it’s a matter of degree. Making up --- a private act--- has a way of neglecting the presence of others. I was once seated at a party with a model-actress who immediately waved a silly brush and began dusting her face at the table, demonstrating that while she was next to me, she was not with me.
In fact, I am generally prohibited from making up in public, except when I am in the company of cosmetics moment. In a gathering more professional than social, I would do so.
Kathy Peiss, a history professor at the University of Massachusetts in Amherst says that nose-powdering in the office was an occasion for outrage in 1920’s and 30’s. Deploring the practice as a waste of company time, trade journals advises managers to discourage it among workers. Peiss theorizes that it was female’s making up in what has been an all-male field that disturb some gentlemen.
Peiss tells me that after the 30’s , pulling out a make-up case was no longer an issue. It became an accepted practice. I asked if she feels free to apply lipstick at a professional lunch herself. Sounding mildly shocked, she says she would save that for the privacy of her car afterward. Why? Because it would be “a gesture of inappropriate feminity(女性化）.” One guess is that most professional women feel this way. There is evidence of the popularity of the new lipsticks that remain in place all day without retouching.
1.According to the author, “My husband and I could have been a blanket wall.” (Line 6, Para.1) most probably means “________”.
A. We were treated with an expressionless face.
B. We looked at the French woman expressionlessly
C. We used books as a wall to avoid the woman’s eyes
D. We were of no existence in the French woman’s eyes
2.In the author’s opinion, she _______.
A. allows public making up on certain occasions
B. feels comfortable when making up in public
C. only makes up on social occasions
D. makes up before any professional gatherings
3.According to Peiss, nose powdering in an office was criticized mainly for the reason that ____.
A. normal office work was disturbed
B. it discouraged women’s interest in career
C. make dominance was emphasized there
D. it distracted make workers’ focus on work
4.Why do most professional women give up using lipsticks in public?
A. Because they are worried about being looked down upon
B. Because it emphasizes their female features in wrong situations
C. Because it implies women’s disadvantages in academic fields
D. Because they are ashamed to be seen making up in front of males/
5.It can be inferred that in a highly open society, the differences between men and women ______.
A. have attracted little attention
B. hinder the social development
C. are attractive topics in talk shows
D. still call for great concern
高三英语阅读理解中等难度题查看答案及解析
The pilot asked all the passengers on board to remain _________ as the plane was making a landing.
A. seat B. seating C. seated D. to be seating
高三英语单项填空简单题查看答案及解析
The pilot asked all the passengers on board to remain _________ as the plane was making a landing.
A. seat B. seating C. seated D. to be seating
高三英语单项填空中等难度题查看答案及解析
All passengers ____, please fasten your seat belts and remain seated ____the plane is landing．
A．on board; until B．abroad; since C．on the board; before D．aboard; when
高三英语单项填空简单题查看答案及解析
Blue whales are the largest animals ever known to have existed on the planet, and they can grow to a length of 100 feet and weigh more than 330,000 pounds. But recently researchers have found that these whales are on the move and they have migrated from California waters to areas off Canada and Alaska for the first time since commercial whaling ended in 1965.
The researchers identified 15 blue whales that have appeared off the coast of British Columbia and the Gulf of Alaska since 1997. Four of these whales were recognized as ones that were once sighted off California shores, suggesting that the whales are returning to an old migration pattern between the coasts.
Before commercial whaling began in the early 1900s, blue whales were found widely throughout the North Pacific and California waters. But from the 1920s to the 1960s,whaling severely reduced the whale populations. Blue whales never recovered in the Northern Pacific, making sightings in this area rare. However, much larger groups of whales have been observed close to California since the 1970s.
The scientists had previously thought that the California population was separate from the population that had historically lived in North Pacific waters. But the current study shows that whales off the coast of British Columbia and the Gulf of Alaska are likely part of the California population.
To identify the blue whales, the researchers looked at photos of cetaceans taken in the North Pacific Ocean and compared them with a library of blue whale pictures taken along the West Cost of the United States and Southern Pacific. Up to now, the researchers are not quite sure why the whales are changing their migration patterns, but they suspect that the whales may be following their food moving farther north by the changes in ocean conditions.
1.According to the passage, blue whales are .
A. following a fixed route of migration
B. dying out due to commercial whaling
C. moving from the south to the north
D. rarely found in the Southern Pacific
2.The whale population in the northern Pacific .
A. is different from the California population
B. is probably part of the California population
C. has become the largest group since the 1970s
D. has lived there since the 1960s
3.The underlined word "cetaceans" in Paragraph 5 probably means .
A. land creatures B. whale species
C. ocean conditions D. migration patterns
4.What might make blue whales migrate according to the researchers?
A. Commercial whaling. B. Weather conditions.
C. Life reproduction. D. Food resources.
高三英语阅读理解中等难度题查看答案及解析
Blue whales are the largest animals ever known to have existed on the planet, and they can grow to a length of 100 feet and weigh more than 330,000 pounds. But recently researchers have found that these whales are on the move and they have migrated (moved) from California waters to areas off Canada and Alaska for the first time since commercial whaling ended in 1965.
The researchers identified 15 blue whales that have appeared off the coast of British Columbia and the Gulf of Alaska since 1997. Four of these whales were recognized as ones that were once sighted off California shores, suggesting that the whales are returning to an old migration pattern between the coasts.
Before commercial whaling began in the early 1900s, blue whales were found widely throughout the North Pacific and California waters. But from the 1920s to the 1960s, whaling severely reduced the whale populations. Blue whales never recovered in the Northern Pacific, making sightings in this area rare. However, much larger groups of whales have been observed close to California since the 1970s.
The scientists had previously thought that the California population was separate from the population that had historically lived in North Pacific waters. But the current study shows that whales off the coast of British Columbia and the Gulf of Alaska are likely part of the California population.
To identify the blue whales, the researchers looked at photos of cetaceans taken in the North Pacific Ocean and compared them with a library of blue whale pictures taken along the West Coast of the United States and Southern Pacific. Up to now, the researchers are not quite sure why the whales are changing their migration patterns, but they suspect that the whales may be following their food moving farther north by the changes in ocean conditions.
1.According to the passage, blue whales are __________.
A. following the fixed route of migration
B. dying out due to commercial whaling
C. rarely found in the Southern Pacific
D. moving from the south to the north
2.The whale population in the northern Pacific __________.
A. is different from the California population
B. has become the largest group since the 1970s
C. is probably part of the California population
D. has lived there since the 1960s.
3.The underlined word “cetaceans” in Paragraph 5 probably means __________.
A. whales species B. land creatures
C. ocean conditions D. migration patterns
4.What might make blue whales migrate according to the researchers?
A. Commercial whaling. B. Food resources.
C. Weather conditions. D. Life reproduction.
高三英语阅读理解中等难度题查看答案及解析
Have you ever heard of the trees that are homes animals both on land and sea?
A. about B. to
C. with D. over
高三英语单项填空中等难度题查看答案及解析