When most people think of giant pandas, the pictures of the cute, black-and-white bears from China that eat bamboo will immediately jump into their mind. Scientists from Mississippi State University, however, are interested in what they leave behind: their poop(排泄物). At a recent meeting in Denver, Professor Brown at the university presented her research showing how panda poop could inspire a new way to obtain energy from plants, which are a renewable energy source. Usually, plants can be called biomass(有机燃料) when they are used as an energy source.
Burning biomass is one way to capture its energy, but Brown hopes panda poop can teach scientists something about breaking down biomass. Pandas—or at least the bacteria in their stomachs—are very good at getting energy out of bamboo. Unlike cows, which use 4 stomachs to digest large amounts of grass, a panda has only one stomach. Bamboo comes in, and poop goes out.
Every day for 14 months, Brown and her team on this project, counted the bacteria in the poop of the two pandas, YaYa and LeLe living at the Memphis Zoo. Her studies turned up 12 species of bacteria that break down biomass, including one that had never been found in pandas. Brown says that because the poop contains bacteria that break down biomass, it could also be used to break down other types of biomass.
Now the scientists hope to identify the chemicals that help with the process of breaking down biomass and then figure out how the bacteria work. If those chemicals can be made in the lab, they could be used to turn biomass—like grass or other plants—into fuel.
Brown says she doesn’t mind handling panda poop. “It’s probably the most pleasant material to work with,” she says, “My colleagues and I have been working with other poop for a long time, and we can assure you it has a fairly pleasant smell associated with it.”
1.The importance of studying panda poop is _______.
A. to create a renewable energy from plants
B. to explore a new way to get energy from plants
C. to learn a lesson of energy from panda poop
D. to figure out how the bacteria work for us mankind
2.The process of the panda poop project can be described as ______.
a. Identify the chemicals helpful to break down biomass. b. Find the bacteria in panda poop which break down bamboo. c. Reproduce the chemicals in the lab to turn biomass into energy. d. Analyze how the bacteria in panda poop work in panda’s stomach. |
A. a, b, d, c B. a, d, c, b C. b, a, d, c D. b, d, a, c
3.What does the author mainly want to express in the 2nd paragraph?
A. Pandas don’t digest bamboo the same way as cows.
B. Pandas are capable of getting energy using stomachs.
C. Pandas can get energy from bamboo more efficiently.
D. Scientists have learnt something new from panda poop.
4.What does Professor Brown think of working with panda poop?
A. Sick B. Challenging C. Inspiring D. Enjoyable
高二英语阅读理解困难题
When most people think of giant pandas, the pictures of the cute, black-and-white bears from China that eat bamboo will immediately jump into their mind. Scientists from Mississippi State University, however, are interested in what they leave behind: their poop(排泄物). At a recent meeting in Denver, Professor Brown at the university presented her research showing how panda poop could inspire a new way to obtain energy from plants, which are a renewable energy source. Usually, plants can be called biomass(有机燃料) when they are used as an energy source.
Burning biomass is one way to capture its energy, but Brown hopes panda poop can teach scientists something about breaking down biomass. Pandas—or at least the bacteria in their stomachs—are very good at getting energy out of bamboo. Unlike cows, which use 4 stomachs to digest large amounts of grass, a panda has only one stomach. Bamboo comes in, and poop goes out.
Every day for 14 months, Brown and her team on this project, counted the bacteria in the poop of the two pandas, YaYa and LeLe living at the Memphis Zoo. Her studies turned up 12 species of bacteria that break down biomass, including one that had never been found in pandas. Brown says that because the poop contains bacteria that break down biomass, it could also be used to break down other types of biomass.
Now the scientists hope to identify the chemicals that help with the process of breaking down biomass and then figure out how the bacteria work. If those chemicals can be made in the lab, they could be used to turn biomass—like grass or other plants—into fuel.
Brown says she doesn’t mind handling panda poop. “It’s probably the most pleasant material to work with,” she says, “My colleagues and I have been working with other poop for a long time, and we can assure you it has a fairly pleasant smell associated with it.”
1.The importance of studying panda poop is _______.
A. to create a renewable energy from plants
B. to explore a new way to get energy from plants
C. to learn a lesson of energy from panda poop
D. to figure out how the bacteria work for us mankind
2.The process of the panda poop project can be described as ______.
a. Identify the chemicals helpful to break down biomass. b. Find the bacteria in panda poop which break down bamboo. c. Reproduce the chemicals in the lab to turn biomass into energy. d. Analyze how the bacteria in panda poop work in panda’s stomach. |
A. a, b, d, c B. a, d, c, b C. b, a, d, c D. b, d, a, c
3.What does the author mainly want to express in the 2nd paragraph?
A. Pandas don’t digest bamboo the same way as cows.
B. Pandas are capable of getting energy using stomachs.
C. Pandas can get energy from bamboo more efficiently.
D. Scientists have learnt something new from panda poop.
4.What does Professor Brown think of working with panda poop?
A. Sick B. Challenging C. Inspiring D. Enjoyable
高二英语阅读理解困难题查看答案及解析
阅读表达
When people think of New York City, most of them probably picture the attractive lifestyles of the rich and famous or think of Broadway, Times Square and other tourists attractions. However, there is another side of New York City. The summer after tenth grade, I went with my group on a mission trip to New York City for a week.
I had always known that poverty existed in major cities, but I had never seen it to a degree as high as we did there. We worked at several different locations with our small groups. One day, we served at a soup kitchen and what I saw astounded me. I couldn’t believe my eyes. We saw people from all walks of life. We met people who came there because they had no job, no home and no money.
Another day, we volunteered at a homeless shelter. We helped people there do some cleaning and spent time talking to them and listening to their stories. It was incredible to see how thankful they were to us for just spending a couple of hours talking to them.
Every person we met on that trip had a unique story. Whatever their stories were, there was a common thread we saw in them—hope and thanks. These were people who had nothing and yet they were so hopeful about her future and they were thanking us.
My experience during the summer changed my life. I used to picture my future as containing a big house and a lot of money, but now I see my future as helping others. After college, I would really like to work for some sort of global aid organization that deals with social issues, such as poverty and homelessness.
1.What do most people have in mind when thinking of New York City? (no more than 10 words)
_________________________________________________________________
2.What does the underlined word “astounded” in Paragraph 2 mean?(1 word)
_________________________________________________________________
3.What did the author discover in the people at the homeless shelter? (no more than 15 Words)
_________________________________________________________________
4.What kind of organization does the author want to work for after college? (no more than 10 words)
_________________________________________________________________
5.How does the author’s experience inspire you? (no more than 25 words)
_________________________________________________________________
高二英语阅读表达困难题查看答案及解析
When most people think of artists, they usually forget the part about the artist being a surveyor of beauty. This is because most people do not realize that there is actually a sort of process when it comes to making art so much so that lots of individuals(个人) cannot understand why true artists take their time when creating brilliant works.
The reason as to why artists take their time when creating their works is because they will first have to look for something beautiful which will inspire them. This is because an artist is someone who appreciates beauty and captures(捕获) the said beauty in a portrait, a song, a novel, and any other forms of artistic medium available to man. Rather than those commercial artists who simply paint a picture because they are paid to do so, a true artist will only work if he or she is inspired. The true artist shall not compromise his or her work because of earth temptations(诱惑) and as such they run the risk of being ridiculed(嘲弄)in exchange for their happiness. History has however shown that the true artist who correctly appreciates beauty is one whose works will end up being celebrated.
How does a true artist spot beauty? The only possible way to go about doing this is to actually look at the world. This means that the true artist is someone who loves to walk around and look at new things. Whatever it may be, the point here is that the artist does take a bit of time out to survey the world and find something beautiful which would inspire him. At times it even happens that the object that inspires the artist is not a thing but rather a person. At the end of the day, it must be said that each artist has his own views of what is beautiful and what is not. The true artist is someone who appreciates beauty.
1.What do we learn from the first paragraph?
A. Most people know little about how artists work.
B. People understand only how true artists work.
C. Most people appreciate the work of artists.
D. People tend to ignore the works of artists.
2.True artists are ridiculed because they .
A. have a strange lifestyle
B. resist earth temptations
C. refuse to live a happy life
D. search for something beautiful
3.What is the author's attitude towards true artist?
A. Doubtful. B. Concerned.
C. Appreciative. D. Disapproving.
4.The main purpose of the passage is to .
A. tell us the result of a survey
B. make a comparison
C. make a suggestion
D. argue for a point
高二英语阅读理解中等难度题查看答案及解析
When most people think of artists, they usually forget the part about the artist being a surveyor of beauty. This is because most people do not realize that there is actually a sort of process when it comes to making art so much so that lots of individuals(个人) cannot understand why true artists take their time when creating brilliant works.
The reason as to why artists take their time when creating their works is because they will first have to look for something beautiful which will inspire them. This is because an artist is someone who appreciates beauty and captures(捕获) the said beauty in a portrait, a song, a novel, and any other forms of artistic medium available to man. Rather than those commercial artists who simply paint a picture because they are paid to do so, a true artist will only work if he or she is inspired. The true artist shall not compromise his or her work because of earth temptations(诱惑) and as such they run the risk of being ridiculed(嘲弄)in exchange for their happiness. History has however shown that the true artist who correctly appreciates beauty is one whose works will end up being celebrated.
How does a true artist spot beauty? The only possible way to go about doing this is to actually look at the world. This means that the true artist is someone who loves to walk around and look at new things. Whatever it may be, the point here is that the artist does take a bit of time out to survey the world and find something beautiful which would inspire him. At times it even happens that the object that inspires the artist is not a thing but rather a person. At the end of the day, it must be said that each artist has his own views of what is beautiful and what is not. The true artist is someone who appreciates beauty.
1.What do we learn from the first paragraph?
A. Most people know little about how artists work.
B. People understand only how true artists work.
C. Most people appreciate the work of artists.
D. People tend to ignore the works of artists.
2.True artists are ridiculed because they .
A. have a strange lifestyle
B. resist earth temptations
C. refuse to live a happy life
D. search for something beautiful
3.What is the author's attitude towards true artist?
A. Doubtful. B. Concerned.
C. Appreciative. D. Disapproving.
4.The main purpose of the passage is to .
A. tell us the result of a survey B. make a comparison
C. make a suggestion D. argue for a point
高二英语阅读理解中等难度题查看答案及解析
When most people think about the "American culture", images of Coca-Cola, hot dogs, baseball games, big cars come to mind. Actually, American culture is more than that, and its history features the variety of American culture. Especially southern culture, plays a part in American culture. And the southerners are known for their hospitality, language and food.
Southerners' hospitality is very famous in the world. People who live in the South are very nice and are always willing to help another person in any way they can. If someone is from out of town and needs directions to a certain place, Southerners will make sure he or she knows how to get there. Southerners are very polite. Everytime they pass someone on the road, they are going to wave at him or her. Towns in the South have fewer people and everyone knows everyone. The people in the South are nicer than anywhere else in the United States.
Language in the South varies according to which area someone is in and what the person's background is. Most white people have a country draw in the accent. Most black people talk using Ebonies(黑人英语),but some do have a draw in their accent. The other groups talk in their native languages or in English with an obvious accent. The languages in the South are alike in most places except in Southern Louisiana
The South's food is like no other places. It is colourful, has a wonderful smell that fills the whole house and tastes good. All the things that the Southerners use will wake up one's taste and are really delicious.
Southern culture is well-known in the world. The South is very different from other areas in the United States. The people are nice, the language is very different and the food is great.
1.What does the underlined word "hospitality" in Paragraph 1 probably mean?
A.Being honest. B.Being friendly.
C.Being generous. D.Being beautiful
2.What can you infer about the southerners from the passage?
A.They enjoy waving at others. B.They prefer to talk on the road.
C.They arc glad to help strangers. D.They don't get along well with others.
3.Which of the following statements about the South is NOT true?
A.People in the South speak the same language.
B.People in the South are the nicest in America.
C.The culture in the South is unique in the world.
D.The food in the South are different from other places.
4.Which of the following can be the best title?
A.The Origin of Southern Culture. B.American Culture.
C.Southerners' Hospitality. D.Southern Culture.
高二英语阅读理解中等难度题查看答案及解析
It is ______ unusual feeling for animal lovers to see ______ giant panda, one of China’s most famous animals.
A. an; 不填 B. an; the C. the; the D. the; 不填
高二英语单项填空中等难度题查看答案及解析
We have all heard of giant pandas, and know that they are endangered. When one has babies, it makes national news_______, and pictures of their babies are_____ circulated. But it now seems that the giant panda is not ______ of itself.
The lovely animals have ______ a classic test of self-awareness. They cannot ____ themselves in the mirror. Researchers use the mirror recognition test to ____ whether children or animals have a ______ of self-awareness.
In the test, an animal is presented ______ a mirror. Researchers then watch to see ______ it notices a mark on its face, which is only_______ in the mirror. If the animal notices the mark, it often ______ it. Human children often pass the test when they are only two years old.
Many other animals have passed the mirror test, including monkeys, Asian elephants and even pigeons. But when researchers tested pandas, ______ of them did the same thing as those animals did. ______, each panda behaved as if their_____ in the mirror was another panda altogether. They acted as if they were_______ by what they saw in the mirror, scratching their feet and walking_______.
The________of this research will help design better areas for animals in captivity (圈养). For example, one-directional glass sometimes used in the areas may ____ pandas to feel stressed when they see their own image in the ______. That’s because they might believe it to be another panda,________themselves.
1.A. papers B. covers C. headlines D. pages
2.A. widely B. popularly C. especially D. completely
3.A. shy B. fond C. conscious D. confident
4.A. failed B. ignored C. faced D. conducted
5.A. observe B. discover C. recognize D. understand
6.A. believe in B. find out C. pick out D. take in
7.A. sense B. question C. opinion D. thought
8.A. for B. with C. in D. before
9.A. how B. when C. why D. whether
10.A. touchable B. seeable C. sensible D. possible
11.A. dismisses B. admits C. feels D. moves
12.A. all B. most C. one D. none
13.A. Thus B. However C. Instead D. Still
14.A. reaction B. reflection C. operation D. imagination
15.A. trapped B. amazed C. threatened D. teased
16.A. backwards B. alone C. forwards D. along
17.A. failure B. outcome C. success D. review
18.A. cause B. prepare C. accelerate D. urge
19.A. eyes B. cages C. zoo D. glass
20.A. other than B. regardless of C. because of D. rather than
高二英语完形填空中等难度题查看答案及解析
阅读下面短文,在空白处填入 1个适当的单词或括号内单词的正确形式。
The giant panda 1. (love) by people throughout the world. Chinese scientists 2. (recent) had a chance to study a wild female panda with a newborn baby. She was a very 3.(care) mother. For 25days, she never left her baby, not even to find something 4. (eat)! She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural 5.(enemy) that would try to eat the little comforting panda. The mother held the baby in her front paws much the way a human does. 6. it cried, she rocked it back and forth and gave it little comforting pats. The mother continued to care for the young panda 7. more than two years. By that time, the panda no longer needed 8.(it) mother for food. However, it stayed with her and leaned about the ways of the forest. Then, after two and a half years, the mother 9. (drive) the young panda away. It was time for her to have a new baby, 10. it was also time for the young panda to be independent.
高二英语语法填空中等难度题查看答案及解析
阅读下面材料, 在空白处填入适当的内容(不多于3个单词)或括号内单词的正确形式。
The giant panda 1.(love) by people throughout the world. Chinese scientists 2. (recent) had a chance to study a wild female panda with a newborn baby. She was a very3.(care)mother. For 25days,she never left her baby, not even to find something 4.(eat)!She would not let any other pandas come near. She licked the baby constantly to keep it clean. Any smell might attract natural 5.(enemy)that would try to eat the little comforting pats. The mother held the baby in her front paws much the way a human does. 6. it cried, she rocked it back and forth and gave it little comforting pats, The mother continued to care for the young panda7. more than two years. By that time, the panda no longer needed8. (it)mother for food. However, it stayed with her and leaned about the ways of the forest. Then, after two and a half years, the mother9. (drive) the young panda away. It was time for her to have a new baby, 10.it was also time for the young panda to be independent.
高二英语语法填空中等难度题查看答案及解析
While traveling in Sichuan,you can’t miss________people call “The National Treasure”—Giant Panda.
A.that B.it C.what D.which
高二英语单项填空困难题查看答案及解析