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.”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 |
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, cWhat 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. |
What does Professor Brown think of working with panda poop?
| A．Sick | B．Challenging | C．Inspiring | D．Enjoyable |
“OK,” I said to my daughter as she bent over her afternoon bowl of rice. “What’s going on with you and your friend J.? ” J. is the leader of a group of third-graders at her camp—a position Lucy herself occupied the previous summer. Now she’s the one on the outs. and every day at snack time, she tells me all about it, while I offer the unhelpful advice all summer long.
“She’s fond of giving orders, “Lucy complained. “She’s turning everyone against me. She’s mean. And she’s fat.” “Excuse me,” I said, struggling for calm. “What did you just say?” “She’s fat.” Lucy mumbled (含糊地说). “We’re going upstairs,” I said, my voice cold. “We’re going to discuss this.” And up we went. I’d spent the nine years since her birth getting ready for this day, the day we’d have the conversation about this horrible word. I knew exactly what to say to the girl on the receiving end of the teasing, but in all of my imaginings, it never once occurred to me that my daughter would be the one who used the F word—Fat.
My daughter sat on her bed, and I sat beside her. “How would you feel if someone made fun of you for something that wasn’t your fault?” I began. “She could stop eating so much,” Lucy mumbled, mouthing the simple advice a thousand doctors have given overweight women for years.
“It’s not always that easy,” I said. “Everyone’s different in terms of how they treat food.” Lucy looked at me, waiting for me to go on. I opened my mouth, then closed it. Should I tell her that, in teasing a woman’s weight, she’s joined the long tradition of critics? Should I tell her I didn’t cry when someone posted my picture and commented, “I’m sorry, but aren’t authors who write books marketed to young women supposed to be pretty?”
Does she need to know, now, that life isn’t fair? I feel her eyes on me, waiting for an answer I don’t have. Words are my tools. Stories are my job. It’s possible she’ll remember what I say forever, and I have no idea what to say.
So I tell her the only thing I can come up with that is absolutely true. I say to my daughter, “I love you, and there is nothing you could ever do to make me not love you. But I’m disappointed in you right now. There are plenty of reasons for not liking someone. What she looks like isn’t one of them.”
Lucy nods, tears on her cheeks. “I won’t say that again,” she tells me, and I pull her close, pressing my nose against her hair. As we sit there together, I pray for her to be smart and strong. I pray for her to find friends, work she loves, a partner who loves her. And still, always, I pray that she will never struggle as I’ve struggled, that weight will never be her cross to bear. She may not be able to use the word in our home, but I can use in my head. I pray that she will never get fat.Why does the author want to discuss with Lucy?
| A．Because she wants to offer some other helpful advice. |
| B．Because she is really shocked at Lucy’s rudeness. |
| C．Because she has prepared the conversation for nine years. |
| D．Because she decides to tell Lucy a similar story of her own. |
What does the author want to tell her daughter?
| A．It is not easy to take the doctors’ advice to eat less. |
| B．People shouldn’t complain because life is unfair. |
| C．People shouldn’t be blamed for their appearance. |
| D．She herself was once laughed at for her appearance. |
It can be inferred from the passage that_______.
| A．the author earns a living by writing stories. |
| B．the author is a fat but good-looking woman. |
| C．the author will stop loving her daughter for what she said. |
| D．the author’s daughter agreed with her from the very beginning. |
The author’s attitude towards her daughter can be best described as _______.
| A．satisfied and friendly | B．indifferent but patient |
| C．loving but strict | D．unsatisfied and angry |
阅读理解
阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项，
A week ago, I had the great pleasure of reading an e-book, When Money Talks, Listen! By Rich Ezzo. It took only about an hour to read.
When I first received a copy, I thought it was a Get Rich Quick type of publication. Nothing is wrong with Get Rich Quick, but my mind just doesn’t chase after dreams of wealth. I think that if God ever wants me to be rich, he knows where to find my purse.
When I began reading When Money Talks, Listen!, I was overjoyed to find that Rich Ezzo isn’t money hungry either. He, too, is hungry far more important than money.
Since I love this e-book so much, why wait a week to write the review? Simple. I wanted to see if the effect it had on me was a keeper. After reading the last word of the e-book, I totally agreed with the subtitle which promised to forever change the way we thought about money. I had so many thoughts running around my mind that I had to install(安装) a stoplight to stop some while others made their way into the picture, then I yielded(让路) them as a few ones arrived in town. I had a mental traffic jam, which only goes to show how slow the traffic usually is.
It has been a week and the effect is the same. I truly do look at money differently and have even done a few things differently this week. This is an e-book you’ll want to read, I promise. I often recommend books to my daughter, and this is one that I didn’t just “suggest”---I left it open at the bottom of the computer and told each one, “Read it, you’ll love it.”
I would never point someone in a direction I wouldn’t go myself. I urge you to visit the author’s website, Myster Money, and to download the e-book. You won’t regret it.The author wrote this passage to _________.
| A．strongly recommend an e-book. |
| B．show the author's attitude to money. |
| C．introduce the general idea of an e-book. |
| D．point out Rich Ezzo isn't money hungry. |
According to the passage, a Get Rich Quick type of publication ______.
| A．is what the author really cares for |
| B．deals with how to make money |
| C．is also an e-book written by Rich Ezzo |
| D．is more popular than e-books |
The author didn't write the review as soon as he finished reading the book because______.
| A．he was too excited to write anything |
| B．he was not sure whether he did well |
| C．he had to wait for Rich Ezzo's permission |
| D．he wondered if the book would have long influence on him |
Which of the following is supported by the passage?
| A．The author had known Rich Ezzo before. |
| B．The author hasn't dreamed of getting rich immediately. |
| C．The author always prefers e-books to paper books. |
| D．The author likes Get Rich Quick-type of publications. |
Death is natural, but do you have any idea of the process of dying? Modern scientists divide the process of dying into two stages---clinical or temporary death and biological death. Clinical death occurs when the vital organs, such as the heart or lungs, have ceased to function, but have not suffered permanent damage. The organism can still be revived(复活). Biological death occurs when changes in the organism lead to the “breaking up” of vital cells and tissues. Death is then unchangeable and final.
Scientists have been seeking a way to lengthen the period of clinical death so that the organism can remain alive before biological death occurs. The best method developed so far involves cooling of the organism, combined with narcotic（麻醉的) sleep. By slowing down the body’s metabolism(新陈代谢), cooling delays the processes leading to biological death.
To illustrate how this works, scientists performed an experiment on a six-year-old female monkey called Keta. The scientist put Keta to sleep with a narcotic. Then they surrounded her body with ice-bags and began checking her body temperature. When it had dropped to 28 degrees the scientists began draining（流光466） blood from an artery（动脉）. The monkey’s blood pressure decreased and an hour later both the heart and breathing stopped: clinical death set in. For twenty minutes Keta remained in this state. Her temperature dropped to 22 degrees. At this point the scientists pumped blood into an artery in the direction of the heart and started artificial breathing. After two minutes Keta’s heart became active once more. After fifteen minutes, spontaneous(自发的)breathing began, and after four hours Keta opened her eyes and lifted her head. After six hours, when the scientists tried to give her a penicillin injection, Keta seized the syringe（注射器）and ran with it around the room. Her behavior differed little from that of a healthy animal.For a person who suffers from the clinical death ___________.
| A．he still has the possibility of getting back to life |
| B．his most important organs are damaged. |
| C．he can not avoid final death. |
| D．he is still very much alive |
Scientists try to make the time of clinical death longer in order to___________.
| A．slow down the body’s metabolism. |
| B．bring vital cells and tissues back to active life. |
| C．delay the coming of biological death. |
| D．cool the organism. |
How did the scientists put Keta into clinical death?
| A．By surrounding her body with ice-bags and draining her blood. |
| B．By lowing her blood pressure and stopping her heart from beating. |
| C．By draining her blood, lowering her blood pressure and stopping her breathing. |
| D．By putting her to sleep, lowering her temperature and draining her blood. |
All of the following indicate that the monkey has almost restored to her original physical state except the fact that___________.
| A．her heart beat again. |
| B．she regained her normal breath. |
| C．she rejected a penicillin injection. |
| D．she acted as lively as a healthy monkey. |
Perfectionists believe that not only is perfection achievable, but that it should be achieved whenever possible. They always try to make their work better, and often get pleasure from investing time and effort in their projects. They enjoy paying attention to detail and are often hard to please. After all, perfectionists almost always have nearlyimpossible standards for themselves, much higher than what outside parties would generally hope for.
Most perfectionists are also highlyorganized. They've perfected their work process along with everything else in their life. They have processes and patterns for handling almost anything that comes their way, from email to new projects and clients to bookkeeping. It can definitely add up to a more effective workday with less wasted time and effort.
Perfectionists can be thought of as overbearing(霸道的) by those who don't share their attitude. It can also be upsetting to clients who aren't interested in “perfect” and simply want their project done yesterday. When you strive for perfection, everything takes just a bit longer to get right. Even if you have a more efficient design and development process than many other designers, it is likely that you spend more time on each step than a lot of others do.
While most people who call themselves “perfectionists” do so in a lighthearted or positive manner, there are those out there to whom perfection becomes an obsession(痴迷). They consider anything less than perfect completely unacceptable. This can lead to obsessive behavior and can have damaging effects on their overall quality of life. Just feeling good about a job done to the best of your ability is entirely normal for a perfectionists and isn't something to worry about. But it becomes particularly dangerous when perfectionists feel they are never quite able to attain perfection, and so drive themselves crazy trying to always reach this unattainable goal.
These perfectionists often place their entire selfworth on their accomplishments and ability to reach perfection, and since they're never able to reach it, it creates a very negative selfimage and low selfesteem or depression. The good news is that there are trained psychologists who can help those who are nervously obsessed with perfection to overcome their obsession.Which of the following is NOT a characteristic of perfectionists?
| A．They enjoy investing time and efforts. |
| B．They are not easy to satisfy. |
| C．They have special ways of handling emails. |
| D．They set high requirements for others. |
Clients who are not satisfied with perfectionists think they need ________.
| A．better coworkers | B．bigger achievements |
| C．higher efficiency | D．less organization skills |
To perfectionists, their obsession with perfection is an act of ________.
| A．showing psychological sickness |
| B．realizing their own value |
| C．wasting time and energy |
| D．improving their selfimage |
Which of the following will the author probably agree?
| A．It's very normal to always do one's best in life. |
| B．Perfectionists should seek help as soon as possible. |
| C．Perfectionists should not be too proud of themselves. |
| D．People should not pursue perfection too much. |
A farmer grew some vegetables in his garden. One day his wife was ill and he had no money. He had to sell some cabbages and carrots in the market. The next morning he took two baskets of vegetables to town, but it was raining hard that afternoon and there were few people in the street. When his vegetables were sold out, it was dark. He bought some medicine and hurried to his village.
On his way home he saw a person lying on the ground. He placed his baskets on the ground and was going to help the person to get up. At that time he found it was a dead man and there was much blood on his body. He was so afraid that he ran away quickly, without taking his baskets.
The next afternoon the farmer was sent to the police station. Having shown the baskets, an officer asked, “Are these yours? ” “Yes, sir. ” The farmer answered timidly（胆怯地）. “Have you killed the man?” “No, no, sir.” The farmer said in a hurry. “When did you see the dead man?” “About seven last evening. ” “Did you see who killed the man?” “No, sir. ” The officer brought out a knife and asked, “Have you seen it yet?” “No, sir. ” The officer became angry and told the policemen to beat him up and sent him into prison(监狱)。
That evening the officer went on trying. Pointing to the knife, he asked again, “Have you seen it yet?” “ yes, sir.” The officer was happy and asked, “When and where?” “I saw it here this afternoon, sir.”Why did the farmer decide to sell the vegetables?
| A．To go to the market. |
| B．To go to see the doctor. |
| C．To buy some food for his family. |
| D．To buy some medicine for his wife. |
The farmer didn’t sell out his vegetables until the evening because ________.
| A．they were too bad |
| B．they were very expensive |
| C．it rained hard that morning |
| D．people wouldn’t go out on such a bad day |
Why did the farmer run quickly?
| A．He was afraid to see a dead man. |
| B．His wife was waiting for him at home. |
| C．The policemen were coming towards him. |
| D．It was so late and he had to buy some medicine. |
The officer tried（审讯）the farmer to _______.
| A．ask if he had seen the knife |
| B．know who had killed the man |
| C．ask when he saw the dead man |
| D．know if he had seen the dead man |