Our dog Sandy is a golden retriever( 寻回犬). Once we performed an experiment to see how keen his nose was.There was one particular pile that must have had hundreds of sticks. We picked up one stick carved an X on it, walked away from the pile and then threw it back into the pile, not once but a dozen times into the pile. It was impossible for us to tell with any certainty which stick we had originally chosen. Each time he brought back that stick. It wasn't the shape or the size or the look of the stick that he used to pick it out from all the others. It was the smell we left on the stick. It is hard to imagine, but for dogs every living creature has its own distinctive smell.
The noses of people have about 5 million cells that sense smell. Dogs' noses have anywhere from 125 to 300 million cells. Moreover, these cells are closer to the surface than cells in our noses, and more active. It has been estimated that dogs such as Sandy have noses that are a million times more sensitive than ours. Clothes that we haven't worn for week,and places we've only touched lightly indicate our presence to dogs.
His ears are also remarkable. He can hear sounds that humans can't and at distances which are astonishing. It is over our head to know and understand that world. Yet we have the advantage of being able to imagine what his experience is like, though he probably doesn't think too much about how we see the world.
The environment is the world that all living things share. Living creatures are born into the environment and are part of it. Yet there is no creature who perceives (感知到) all of what is and what happens. For a dog like Sandy a book isn't much different than a stick, whereas for us one stick is pretty much like every other stick. There is no one world experienced by all living creatures.
1.Why did the author conduct the experiment?
A.To train Sandy to pick out sticks.
B.To show how fast Sandy found sticks.
C.To prove sensitivity of Sandy's nose.
D.To teach Sandy to tell different smells.
2.What does the author intend to do in paragraph 2?
A.Support the conclusion with numbers.
B.Summarize the previous paragraph.
C.Provide some advice for the readers.
D.Introduce a new topic for discussion.
3.What does the underlined idiom in paragraph 3 mean?
A.Amazing. B.Difficult.
C.Reasonable. D.Inconvenient.
4.Which of the following best expresses the author's opinion in the last paragraph?
A.Worlds to experience.
B.An environment to share.
C.No environment, no creatures.
D.One environment, many worlds.
When I first got to the dojo( 柔道馆) at around 6, the first thing that I remember seeing was these groups of people,lined up to fight each other, which shook me. I really didn't want to come back. But I did. I stayed until my Blue Belt. After that, progressing was a little frightening. But my friends and instructors got me to keep coming.
I was progressing well, but that took a turn as soon as I reached the Red Belt. My parents were switching jobs, and it was very difficult to match our schedules so that 1 could come to the dojo. During that year, 1 didn't come to the dojo as much. It was hard for my parents, as well as myself, to be able to fit it into our schedule as often.
When I finally started coming regularly, it was bitter for me to see that all of my friends and peers were ahead. And that taught me a lesson: You should never be upset about yourself if other people are achieving something that you aren't.If anything, you should do the opposite for them. After that year, everything was back up to speed, and I entered Level 3. I couldn't believe how fast my training was going, and I was finally into the Brown Belt.
Getting through the Brown Belt tests as a young student, and a girl, was very tough. And here, in one of the last stages before my First Degree Black Belt, I learned the biggest lesson - - I could do anything that I wanted to and I was capable of anything that I set my mind to. I just didn't think I could. But I proved myself wrong, and I was able to do it.
Finally, getting my First Degree Black Belt is a dream that comes true, literally. I have been dreaming about these I days for months on end, and it never loses the excitement that it gives me. And even after my ceremony, I think I will I look back on this day，and remember every second，every moment.
1.How did the author feel when she first got to the dojo?
A.Scared. B.Thrilled.
C.Annoyed. D.Disappointed.
2.What made the author unable to come to the dojo regularly?
A.Her dislike of her instructors.
B.Her parents' not supporting her.
C.Her little progress in the training.
D.Her parents' changes of jobs.
3.The author thinks that when others did better than you, you should
A.be respectful to them B.be happy for them
C.learn from them modestly D.work harder and harder
4.Which saying can conclude the biggest lesson the author learmed?
A.No pain, no gain.
B.Well begun is half done.
C.Nothing is impossible to a willing heart.
D.All things are difficult before they are easy.
Mathematical Induction By Titu Andreescu & Vlad Crisan ISBN: 9780996874595 Price: US $ 84. 63 Buy now at a 20% discount! | `I serves as a very good resource and teaching material for anyone who wants to discover the beauty of induction(归纳法) and its applications. The authors explore 10 different areas of mathematics, including topics that are not usually discussed in an Olympiad-oriented book on the subject. |
The Flight of a Buttrfly or the Path of a Bullet ? By Larry Cuban ISBN: 9781682531372 Price: US $ 32.00 Buy now at a 10% discount! | In this book, Larry Cuban looks at the uses and effects of digital technologies in K-12 classrooms, exploring if and how technology has transformed teaching and learning. In particular, he examines forty-one classrooms across six districts in Silicon Valley that have devoted much to including digital technologies into their education practices. |
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1.How much is Mathematical Induction now?
A.About $ 16. 93. B.About $ 64. 63.
C.About $ 67. 70. D.About $ 84. 63.
2.What do we know about the book written by Larry Cuban?
A.It focuses on technological reform in education.
B.It aims to improve pre-school education.
C.It helps with students' mathematical ability.
D.It is based on various academic studies.
3.Which book is the most culture-specfic?
A.Mathematical Induction.
B.The Flight of a Butterfly or the Path of a Bullet? .
C.The Fight for America's Schools.
D.The White Chalk of Days.
阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。
Three boys and three girls were going to the beach. When they boarded the bus, they were carrying sandwiches and wine, dreaming of golden beaches. Suddenly, they noticed Vingo. He sat in front of them, eyes fixed upon a photo, completely in silence.
Deep into the night, the bus pulled into Howard Johnson’s, a service area, and everybody got off except Vingo. The young people began to wonder about him. When they came back, one of the girls sat beside him and introduced herself. “Want some wine?” she said. He smiled and took a swig from the bottle. He thanked her and became silent again.
The next morning, they awoke outside another Howard Johnson’s, and this time Vingo went in. The girl insisted that he join them. He ordered black coffee and some cookies. When they returned, the girl sat with Vingo again. After a while, slowly and painfully, he began his story. He had been in prison for the past four years, and now he was going home.
“Are you married?”
“I don’t know.”
“You don’t know?” she said.
“Well, when I was in prison I wrote to my wife,” he said, “I told her that I was going to be away for a long time, and that if she couldn’t stand it, if the kids kept asking questions, and if it hurt her too much, she could just forget me. I’d understand. ‘Get a new guy.’ I said. She’s a wonderful woman. I told her she didn’t have to write me. And she didn’t. Not for three and a half years.”
“And you’re going home now, not knowing?”
“Yeah. Well, last week, when I was sure the parole (假释) was coming through, I wrote her again. We used to live in Brunswick, and there’s a big oak (橡树) tree just as you come into town. I told her that if she didn’t have a new man and if she’d take me back, she should put a yellow handkerchief on the tree, and I’d get off and come home．If she didn’t want me, forget it — no handkerchief and I’d go on through.”
“Wow,” the girl exclaimed, “wow.”
She told the others, and soon all of them were in it.
注意：1.所续写短文的词数应为150左右；
2．至少使用5个短文中标有下划线的关键词语；
3．续写部分分为两段，每段的开头语已为你写好；
4．续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1：
Looking at the photo, the young people found a young woman and three children in it.
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Paragraph 2：
Vingo sat there amazed, staring at the oak tree.
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假定你是李华，你们学校和一所美国学校签署了教师交流协议。在过去的一年里，你们的英语老师是来自这所学校的Sue Wood。不久前她回到美国任教。请根据要求写封电子邮件：
1. 对她表达感谢之意；
2. 介绍她离开后自我和班级发生的事情；
3. 期望了解她的近况。
注意：
1. 词数100左右；
2. 可适当增加细节，以使行文连贯。
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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。
Monkeys do not like it when others get more food 1. they do, according to a new study.
Researchers from Yale and Harvard universities found Capuchin monkeys punish monkeys 2. get more food. "This sort of, 'If I can't have it, no one can' response is because 3. psychological spite (怨恨), and it was4. (previous) thought unique to humans," said Kristin Leimgruber of Harvard University. She is a co-author of the research study. The researchers watched as some Capuchin monkeys 5. (give) more food than others. They found that monkeys getting the 6. (small) share pulled a rope to fold up a table holding the other monkey's bigger share.
Another lead researcher, Laurie Santas, 7. (explain) over email, "I think what we can conclude about humans is that some of our more embarrassing tendencies have relatively deep 8. (root)." Santos said the spiteful response was not present with another member of the ape species—chimpanzees(黑猩猩).
An earlier study, she said, showed chimpanzees would fold up the table of other chimpanzees 9. (steal) food from them. But they would not punish chimpanzees who just happened 10. (have) more food, Santos said. In other words, it was fine if another chimpanzee had more food as long as they did not steal it.
