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Boys and girls,
May I have your attention, please?
There will a lecture in our library, at 4:00 on Wednesday afternoon. We are very honour to have invited Professor Tang Wenfang, who has been studied cultural differences in Tsinghua University for many years, in talk about the differences between American and Chinese cultures, that may be quite an interested topic. After a lecture, you are welcome to share your experience in China with everyone else present. Since you have stayed in China for half a year, because you have anything that what puzzles you, it would be great to talk with Mr.Tang. He will be glad to communicate with you. Please be present on time.
That's all. Thank you.
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Jeremy Kerr, a researcher at the University of Ottawa in Canada, and his colleagues analyzed more than 400,000 observations of bumblebee species collected in North America and Europe from 1975 to 2010. When the researchers recorded the locations of these bee populations, they found that many of the 67 species analyzed were moving northward from their southern limits while the northern edges of the bees¡¯ ranges are staying in place. What it results in is obvious.
Bees have been paid more attention to in recent years, with populations of honeybees and bumblebees obviously declining in some parts of Europe. Previously, attention on the decline of bee populations has focused on causes including habitat loss, pesticide use and the spread of bee parasites(¼ÄÉú³æ). But the work by Kerr¡¯s team found something different.
"For every species, there is one or two species declining and others that are not moving at all," says Kerr. This shift has also been observed in other species, such as butterflies. But due to a new cause ¡ª the rise of temperatures instead of total pesticide use, a change in land use or parasites, bumblebees ¡ª unlike butterflies ¡ª have failed to extend the northern boundaries of their ranges into the territory that is now habitable for them, so bumblebee species across Europe and North America are declining rapidly, the latest study led by Kerr¡¯s team finds. "Our data suggest that the new factor plays a leading, or perhaps the leading, role in this trend," says Kerr.
"This study shows that a fourth factor is also beginning to affect it. It is likely that the combined stresses from all of these pressures will have destructive impacts on bumblebees in the not-too-distant future," says Dave Goulson, a bee researcher at the University of Sussex, Brighton, UK.
Exactly what can be done to help bumblebees is not clear. Kerr¡¯s team suggests that relocating colonies might be an answer but Goulson says that because the insects are mobile they are capable of moving northwards if there is suitable habitat available.
1.What does the move of the bees¡¯ southern limits lead to?
A. The birth of new bee species.
B. The rise of the bees¡¯ population.
C. The evolution of the bees.
D. The reduction of the bees¡¯ habitat.
2.What¡¯s the new cause of bee populations¡¯ declining according to Kerr?
A. Habitat loss.
B. Pesticide use.
C. Climate change.
D. The spread of bee parasites.
3.Which statement may Goulson agree with?
A. Relocating bumblebees isn¡¯t much good.
B. The findings of Kerr¡¯s study are doubtful.
C. The future of bumblebees is still promising.
D. Knowing bumblebees¡¯ living habits is the most urgent.
4.What kind of writing is this passage?
A. A book review.
B. An announcement.
C. A scientific report.
D. An official report.
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What happens inside the head of a soccer player who repeatedly heads a soccer ball? That question motivated a study of the brains of experienced players.
Researchers at the Albert Einstein College of Medicine in New York selected 34 adults, men and women. All of the volunteers had played soccer since childhood and now competed year-round in adult soccer leagues. Each filled out a detailed questionnaire developed especially for this study to determine how many times they had headed a soccer ball in the previous year, as well as whether they had experienced any known concussions (ÄÔÕðµ´) in the past.
Then the players completed computerized tests of their memory and other learning skills and had their brains scanned, using a complex new M.R.I. technique which can find structural changes in the brain that can¡¯t be seen during most scans.
According to the data they presented, the researchers found that the players who had headed the ball more than about 1,100 times in the previous 12months showed significant loss of white matter in parts of their brains involved with memory, attention and the processing of visual information, compared with players who had headed the ball less.
This pattern of white matter loss is ¡°similar to those seen in traumatic (ÍâÉ˵Ä) brain injury¡±, like that after a serious concussion, the researchers reported, even though only one of these players was reported to have ever experienced a concussion.
The players who had headed the ball about 1,100 times or more in the past year were also generally worse at recalling lists of words read to them, forgetting or fumbling the words far more often than players who had headed the ball less.
1. Where do you think the text comes from?
A. Medicine instructions. B. A text for doctors.
C. A research report. D. A sports advertisement.
2.What do we know about the volunteers?
A. They had serious injury on the head.
B. They were adults who still played soccer.
C. They were all researchers about soccer.
D. They all had children who played soccer.
3. What was used to find the structural changes in the brains?
A. Advanced computers.
B. A new technique M. R. I.
C. Special questionnaires.
D. Learning skills.
4. We can conclude that frequent heading may have .
A. a significant effect on one¡¯s brain
B. little effect on one¡¯s brain
C. nothing to do with the brain
D. improvement in one¡¯s brain
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Have you ever wondered when dogs first became ¡°man¡¯s best friend¡± and the world¡¯s favourite pet? If you have then you¡¯re not alone. When and where dogs first began living side-side with humans are questions that have stirred hot debate among scientists. There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated(ѱÑø) by humans. They came into lives some 15000 years ago, before the dawn of agriculture.
Beyond that, there is little agreement. The earliest bones found that are unquestionable dogs and not wolves date from 14,000 years ago. However, 30,000-year-old skulls have been discovered in France and Belgium that are not pure wolf and some scientists think could be dogs.
With such puzzling evidence, many scientists are now turning to DNA to find out when and where dogs were first domesticated. In one research project, tens of thousands of blood samples have been taken from street dogs around the world. The plan is to compare them with those of wolves. It¡¯s even possible to analyse DNA from ancient bones. Tiny pieces of the 30,000-year-old skulls mentioned earlier are currently being studied, and another DNA study has already shown that ancient dogs preserved in the Alaskan ice-fields evolved from Asian wolves, not American ones.
Indeed, the ancient DNA may turn out to be more informative than the DNA of living dogs. Because dogs have accompanied humans around the world for thousands of years, their current distribution may tell us very little of their origins. This is why different groups of scientists believe that dogs variously originated in eastern Asia, Mongolia, Siberia, Europe or Africa.
But why were the animals domesticated in the first place? The most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out. Today, this is a way of life still shared by three -quarters of a billion unowned dogs worldwide.
1. Which is the only statement generally agreed on by scientists studying dogs?
A. They originally were used as farm animal
B. They evolved from wolves found in Europe
C. They helped the development of agriculture
D. They were the first animal to be kept as pets
2. Why does the writer first mention the 30,000-year-old animals skulls?
A. To show that dogs were much larger in the past
B. To prove that dogs developed from Asian wolves
C. To suggest that dogs may have evolved much earlier
D. To argue that dogs were first kept in France and Belgium
3. How did scientists determine the origins of the ancient dogs found in Alaska?
A. By examine the animals¡¯ DNA
B. By analyzing the age of their bones
C. By studying the shape of their skulls
D. By comparing them with modern dogs
4. Why did dogs start living with humans?
A. Because they were attracted by food
B. Because they were trapped by humans
C. Because they couldn¡¯t survive in the wild
D. Because they were trained to protect villages
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AC/DC have postponed their US tour after singer Brian Johnson was warned by doctors that he was at risk of ¡°total hearing loss¡±. This is unsurprising, given the decades that the Australian band has been pumping out the hard rock decibels(·Ö±´). But deafness isn¡¯t only a concern for rock musicians. In recent years it has become clear that anyone around music a lot has reason to be equally worried.
When exposed to music, risk to hearing arises from a combination of how loud the sound is and how long you¡¯re exposed to it. If you visit a nightclub that is thumping out (ÏìÁÁµØ×à³ö) music on the dance floor at 100 dB, then after only 10-15 minutes the exposure is potentially damaging. In a quieter part of the club, but where the music is still loud enough that you have to shout at your friends, then you could be there for a couple of hours before having to worry about your hearing. Of course music frequently exceeds£¨³¬¹ý£© 80-85 dB, but what counts most in assessing the risk to hearing is the average exposure.
Exposure to high noise levels often causes temporary deafness ¡ª something many people have experienced after going to a nightclub. While hearing usually recovers after a few hours or days, repeated loud exposure leads to permanent hearing damage. Initially, this damage is subtle and unlikely to be noticed by the listener. Problems only becomes significant in middle age when the noise-induced hearing loss combines with the natural loss of hearing due to ageing.
Improved technology means that the number of musicians having to give up performing could decrease, but student musicians need to be educated about the dangers of noise-caused hearing loss. The increasing use of headphones will also work against this ¡ª for musicians and everyone else. Unless people are careful with the volume£¨ÒôÁ¿£© level on their portable music players, hearing loss caused by music will increase.
£¨http://theconversation.com/highway-to-hearing-hell-musicians-and-the-danger-of-deafness-55983£©
1.What does Paragraph 1 mainly aim to tell us?
A. Musicians tend to be victims of music.
B. It is helpful to check hearing regularly.
C. Being with music isn¡¯t necessarily beneficial.
D. Deafness has become musicians¡¯ major concern.
2.What¡¯s the most important factor considered in the assessment of risk music has to hearing?
A. Its decibel.
B. The average exposure.
C. Its playing environment.
D. The listener¡¯s sensitivity to sound.
3.People who go to nightclubs frequently tend to ________.
A. suffer from temporary headache
B. have their hearing damaged forever
C. experience natural hearing loss earlier
D. have a clear sense of their hearing damage
4.Which of the following best reflects the author¡¯s opinion?
A. Improving technology can prevent hearing damage.
B. Students musicians are main sufferers of hearing loss.
C. Using headphones helps reduce hearing loss to a degree.
D. We can never be too careful with the volume level of music.
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My mom takes pride in the fact that I was talking in three and four word sentences before I was ten months old. Some say it¡¯s a gift while others simply think I talk too much.
As my thirties came to a close, I found myself reflecting on my life. I¡¯m very happy and have no significant regrets. However, when I looked back on those times of difficulty, I saw a clear common denominator(ÌØÕ÷); I didn¡¯t seem to know when to stop talking. Whether it was hurting someone¡¯s feelings, or having carelessly told a secret, the incident could have been avoided had I closed my mouth sooner. So I decided to practice the power of quiet.
To take this step, I needed to understand how people could sit comfortably in a group and not talk. Why does my husband feel completely content to say nothing in a conversation? He¡¯s highly intelligent and has wonderful opinions but he¡¯ll sit quietly and just listen. Even when he¡¯s asked a pointed question, he¡¯ll answer with few words while still communicating effectively. What a talent!
Can you imagine being happy just listening? In surveying those I know who talk less than I do, I got two answers¡ªthey either didn¡¯t feel confident enough to speak up, or they just didn¡¯t feel the need to participate in the conversation. Of course there were other reasons for not talking, but these were the two most popular answers.
The first one didn¡¯t work for me. I¡¯m just fine letting people know what I think about them, and hopefully it will make the conversation much more interesting. The second one didn¡¯t work either. I do feel the need to participate. I feel it physically like an electrical pulse through my body; sometimes it¡¯s so strong that it causes me to behave badly in the form of interrupting or speaking in an unusually loud voice. I had to look further.
An interesting thing happened on this journey to the power of quiet. During my weekly yoga class, it came to me like an answer so clear that the words rang in my head like soft, heavenly bells.
I talked too much so people would know I cared about them. It was my way of taking care of those I love. I decided before my fortieth birthday, that from that day forward, those around me would know I loved them, and cared what they thought and felt, but I was going to practice the power of quiet.
As my forty-second birthday approaches, I can say that deciding to talk less has been more about focusing on quality rather than quantity. I¡¯ve found that listening more shows those who I care about that I really do care how they feel. Now when I break in, it means more to them. Oh, sure, I still have my short periods of talking too much, but for the most part this has been one resolution that I can call a success.
1.In Paragraph 3 the writer mentions her husband mainly ________.
A. to show how one communicates effectively
B. to explain the reason for his silence in a conversation
C. to give her high opinion of his communication skills
D. to give an example of those who have the power of quiet
2.By ¡°I had to look further¡±, the writer means she had to ________.
A. look into the future in order to succeed in practicing the power of quiet
B. try harder to prevent herself from talking too much
C. find out other reasons why she should talk less
D. survey people in other areas who talk little
3.Which of the following best describe the writer¡¯s character?
A. Kind but pessimistic.
B. Selfless but proud.
C. Loving and active.
D. Stubborn and sensitive.
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I want to share a true story with you. I am____that it can inspire (¼¤Àø) everyone. Let¡¯s be likelamps(µÆ) or candles to light people¡¯s____
Some of my____work in Australia. Among the natives, there was an elderly man. I am sure that you have____been in a situation as difficult as that____old man¡¯s. He was completely ignored by everyone. His____was disordered and dirty.
I told him, ¡°Please let me____your house, wash your clothes, and make your bed.¡± He answered, ¡°I¡¯m____with this. Let it be.¡±
I said again, ¡°It will be still better if you____me to do it.¡±
He finally____So I was able to clean his house and wash his clothes. I____a beautiful lamp, which was covered with____Only God knows how many____had passed since he last lit it.
I said to him, ¡°Don¡¯t you light your lamp? Don¡¯t you ever____it?¡±
He answered, ¡°No. No one comes to see me. I have no____to light it. Who would I light it for?¡±
I asked, ¡°Would you light it every____my sisters came?¡±
He replied, ¡°Of course.¡±
From that day on, my sisterscommitted (ͶÈë) themselves to____him every evening. We cleaned the lamp and he would____it every evening.
Two years passed. I had completely____that man. He sent this message: ¡°Tell my friends that the light they lit in my life continues to____still.¡±
1.A. surprised B. satisfied C. afraid D. sure
2.A. houses B. plans C. life D. clothes
3.A. sisters B. neighbors C. brothers D. children
4.A. always B. never C. recently D. already
5.A. clever B. strong C. healthy D. poor
6.A. bag B. station C. home D. office
7.A. build B. clean C. remove D. paint
8.A. okay B. sick C. rich D. tidy
9.A. advise B. beg C. allow D. remind
10.A. escaped B. arrived C. shook D. agreed
11.A. made B. discovered C. sold D. passed
12.A. snow B. water C. dust D. sand
13.A. years B. hours C. seconds D. centuries
14.A. enjoy B. see C. keep D. use
15.A. time B. need C. energy D. courage
16.A. night B. morning C. afternoon D. midnight
17.A. feeding B. leading C. visiting D. teaching
18.A. cover B. wash C. watch D. light
19.A. changed B. forgotten C. understood D. believed
20.A. shine B. move C. fly D. rise
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As I drove my blue Buick into the garage, I saw that a yellow Oldsmobile was _______ too close to my space. I had to drive back and forth to get my car into the _______ space. That left _______ enough room to open the door. Then one day I arrived home _______, and just as I turned off the engine, the yellow Oldsmobile entered its space-too close to my car, _______. At last I had a chance to meet the driver. My patience had _______ and I shouted at her, "Can't you see you're not _______ me enough space? Park farther over." Banging (ÃÍÍÆ) open door into _______, the driver shouted back: "Make me!" _______ this she stepped out of the garage. Still each time she got home first, she parked too close to my __________. Then one day, I thought, "What can I do?" I soon found __________. The next day the woman__________a note on her windshield:
Dear yellow Oldsmobile,
I'm sorry my mistress shouted at yours the other day. She's been sorry about it. I know it because she doesn't sing anymore while __________. It wasn't like her to scream __________. Fact is, she'd just got bad news and was taking it out on you two. I __________ you and your mistress will __________ her.
Your neighbor,
Blue Buick
When I went to the __________ the next morning, the Oldsmobile was gone, but there was a note on my windshield:
Dear Blue Buick,
My mistress is sorry, too. She parked so __________ because she just learned to drive. We will park much farther over after this. I'm glad we can be __________ now.
Your neighbor,
Yellow Oldsmobile
After that, whenever Blue Buick __________Yellow Oldsmobile on the road, their drivers waved cheerfully and smiled.
1.A. stopped B. driven C. parked D. stayed
2.A. complete B. fixed C. close D. narrow
3.A. nearly B. hardly C. seldom D. quite
4.A. hurriedly B. first C. finally D. timely
5.A. as usual B. as planned C. as well D. as yet
6.A. run into B. run off C. run about D. run out
7.A. saving B. leaving C. offering D. keeping
8.A. itself B. hers C. ours D. mine
9.A. From B. For C. With D. Upon
10.A. side B. room C. front D. area
11.A. an instruction B. an answer C. a chance D. a result
12.A. sent B. wrote C. discovered D. put
13.A. working B. returning C. cooking D. Driving
14.A. so long B. like that C. on end D. any more
15.A. hope B. know C. suppose D. suggest
16.A. please B. help C. comfort D. forgive
17.A. office B. place C. garage D. flat
18.A. crazily B. eagerly C. noisily D. early
19.A. neighbors B. friends C. drivers D. writers
20.A. followed B. greeted C. passed D. found
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Of all the things that can be stolen from you your possessions, your youth, your health, your words, your rights¡ªwhat no one can ever take from you is¡
¡ñHow you feel about yourself.
It takes a long time to learn how to NOT judge yourself through someone else¡¯s eyes. 1.
¡ñYour attitude towards life.
The last of your freedoms is to choose your attitude in any given circumstance.
Choose to be happy and positive. It is not always easy to find happiness in ourselves, but it is always impossible to find it elsewhere. 2.
¡ñ3.
The measure of your life will not be in what you accumulate, but in what you give away. And 99 percent of the time you get what you put in, so give freely. If you want to be happy ,make those around you happy.
¡ñYour knowledge and life experiences.
Character and wisdom are sculpted over time. 4. Your best stories will come from overcoming your greatest struggles. So keep standing, keep learning, and keep living.
¡ñYour choice to move on enthusiastically.
5. Don¡¯t let someone or something that didn¡¯t make it in your life continue to hurt you. Learn the lesson, forget the pain , and move on.
A. Your attitude towards yourself.
B. Your ability to spread love and kindness.
C. They come with loss, lessons, and successes.
D. But once you do, the world is yours for the taking.
E. So smile all the way and walk away from negative people.
F. Don¡¯t let past relationships and old mistakes ruin your future.
G. Holding your uniqueness in high regard is necessary to success.
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