阅读理解。 Now scientists believe that global warming affects hibernating animals
题型：江西省模拟题难度：来源：
Some of the first concrete evidence of the phenomenon came from Colorado, where researchers at the
Rocky Mountain Biological lab have been observing marmot(旱獭)hibernation behavior since the 1970s.
In the early days of their studies, marmots generally hibernated several weeks into the month of May.
Nowadays, however, temperatures in the area have risen by 2.5 degrees Fahrenheit, and the marmots
are waking up about a month earlier.
At least the marmots are still hibernating. Several other animals have not been hibernating at all recently. Brown bears in the Spanish Cantabrian Mountains did not hibernate last year. In parts of the United States, chipmunks (花鼠)also skipped the hibernation period. The bears seem to have survived without losing
many individuals. The chipmunks, however, were not so lucky. Many of the animals died of starvation
during the winter.
The problem with animals waking up early, or skipping hibernation altogether, lies with the creatures"
metabolism (新陈代谢). When an animal hibernates, their metabolism drops significantly. The animals"
heart rate slows, and they require very little energy to live. When the animals awake from their winter
slumber, their metabolism returns to normal.
But while their metabolism may be as active as it was before hibernation, food sources aren"t as
available as they were before. A marmot may wake up when temperatures get warmer, thinking it"s spring, but plants will not have gotten the amount of sun they need to signal their spring period of growth. So until
the plants grow, the marmots have no reliable food source.
Many scientists believe the problem will continue to get worse. In addition to changes in hibernation
patterns, some believe that other animals will also begin to change their migration patterns or begin to give birth earlier. For many biologists, that"s a scary prospect. Terry Root, an animal expert at Stanford
University, said: "I do think what we will be facing is the extinction of many species."
B. Global warming will lead to shortened hibernation of some animals.
C. Shortened hibernation will result in declines in the population of animals.
D. Some animals will skip hibernation altogether.
B. explain that global warming influences animals" hibernation
C. show that the weather in the United States is quite different
D. say some animals do not hibernate now due to warm weather
B. activity
C. nest
D. sleep
B. Because plants haven"t received enough sunlight for spring growth.
C. Because winter days end much earlier than before.
D. Because more and more animal species skip hibernation now.
B. doubtful
C. pessimistic
D. sensitive
答案
举一反三
of a car guy and subscribed to cool magazines like Car and Driver and Motor Trend. Every so often, one of those magazines would run an article on the "Car of the Future". They featured unconventional things
like small nuclear reactors as power sources. Yet, frankly, my car doesn"t do anything that my brother"s
Studebaker didn"t do. It goes, it stops, it burns gasoline. I still have to steer it, and it still runs into things if
I don"t steer it carefully.
But guess what? All of these things are likely to change in the not-so-distant future. It may not burn
gasoline, I may not have to steer it, and it may be a lot better at not running into things.
Airbags (安全气囊) aren"t the be-all and end-all in safety. In fact, considering the recent news about
people occasionally being killed by their airbags in low-speed collisions, they obviously still need some
development. But they aren"t going away, and in fact, you can expect to see cars appearing with
additional, side-impact airbags, something some European car manufacturers already offer.
Better than systems to minimize injury in the event of an accident ,however, are systems that minimize
the likelihood of an accident happening. Future cars may be able to remove many of the major causes of
accidents, including drunk-driving, and tailgating (与前车距离过近). Cars could be equipped with
sensors that can detect alcohol in a driver"s system and prevent the car from being started, for example.
As early as next year, you"ll be able to buy cars with radar-equipped control systems. If the radar
determines you"re closing too quickly with the car in front, it will ease up on the throttle (油门).
Will cars eventually be able to drive themselves? There"s no reason to think it won"t be technically
possible, and Mercedes is working on a system that can brake, accelerate and steer a vehicle down a
highway on its own. Nobody really expects people to give up all control to their cars, but such systems
could be used as failsafe (自动防止故障)systems to keep cars on the road and bring them safely to a
stop even if the driver suddenly became disabled.
B. Because other small boys liked to own a car of their own, too.
C. Because his oldest brother loved to take him to places in his car.
D. Because he subscribed to cool car magazines.
that_____.
B. my car is not as good as my brother"s
C. much improvement has been made in the design of cars recently
D. not much has changed in the performance of cars so far
B. They are in need of further improvement.
C. They kill people instead of protecting them in low-speed collisions.
D. They are a standard feature of European cars.
B. They will brake automatically.
C. They will not start.
D. They will ease up on the throttle.
B. People will give up all control to their cars
C. No cars will ever break down on the roads.
D. Cars will all be equipped with failsafe systems.
dining-room and library service hours and for bus schedules will be posted on the wall outside of the
dining-hall. Weekly film and concert schedules, which are being arranged, will be posted each Wednesday
outside of the student club.
In the summer holidays, buses going to the town center will leave the main hall every hour on the half
hour during the day. The dining-room will serve three meals a day from 7:00 am to 7:00 pm during the
week and two meals from noon to 7:00 pm on weekends. The library will continue its usual hours during
the week, but have shorter hours on Saturdays and Sundays. The weekend hours are from noon to 5:00
pm.
All students who want to use the library borrowing services must have a new summer card. This
announcement will also appear in the next week"s student newspaper.
B. show the excellent services for students
C. tell students of new bus and library services
D. ask students to renew their library cards
B.8:30, 9:30, 10:30, 11:30
C.8:30, 9:00, 9:30, 10:00
D.8:00, 9:30, 11:00, 12:30
B.the full list is not ready
C. they are hard to arrange
D.the full list is too long
B. special hours on weekdays
C. special hours on weekends
D. special hours both on weekdays and weekends
B.students will stay in the university
C.there will be a concert or film once a week
D.no breakfast will be served on weekends
Psychologists say in the vast majority of these cases,this is just the mind"s way of dealing with stress and
conflicts,problems and concerns.It"s a good thing.
They call be surprisingly vivid and real,or fragmented and weird.They can be comforting or frightening.
Our dreams can tell us a lot about what we are really thinking.Dreams give us an x-ray of our
unconsciousness(潜意识).They tell us,particularly when we are at life"s passages or turning points.
Lisa Oppenheim had the same dream whenever she was about to move to a new home or a new city.
It"s always just a feeling of needing to stay safe
.Experts say disturbing dreams often occur around major life events.For Lisa,it was moving.For others,it can be marriage or divorce,the death of a loved one or
pressure at work.
Doctor Siegel has studied the meaning of dream for nearly 30 years.He believes stressful or upsetting
dreams can be a sign of what"s buried deep inside our minds.
He said."Dreams are important to survival.They are crucial to the balance of our psyche(心灵).They
help us work
out problems that we"re having every single day.They go to the cutting edge of what"s stressful,what"s bothering us and what we"re working out in our lives.Dreams can guide us and in order to
f
ind that guidance,to find that deep source of wisdom that"s in our dreams every night,we need to pay attention to our dreams."
But many dreams are scary and horrible.How can we understand these nightmares? Doctor Siegel
says they are reflecting especially intense emotion or unresolved conflict.The stronger the emotion in the
dream,whether it"s
pleasure or fear,the likeli
er the dream is to be important.Knowing what your recurring dreams or nightmares mean can be liberating.Some nightmares can be a
sign of serious psychological problems,such as post-dramatic stress disorder.If they are extremely
disturbing or violent or the cause of severe anxiety,you should see a professional therap
ist (治疗专家).B. show us our real mind
C. solve our stress in mind
D. give us a turning point in mind
B. do the same things all their lives
C. move to a
new home or a new city D. are comforted or frightened
B. Dreams help us find out the problems we need to solve.
C. We should pay attention to every dream we have.
D. Only
the dreams w
ith pleasure are important to us.B.We can ignore them since they are just reflecting our emotions.
C.We need to take some sleeping pills to stop this serious problem.
D.We should see a psychological doctor if they are seriously disturbing
B. to offer some advice on avoiding nightmares
C. to compare recurring dreams with nightmares
D. to ease our anxiety on recurring dreams
can do your homework more quickly. Learning to study is not difficult.
The first thing to remember is that you must be willing to learn. It doesn"t mean that you must always
like the subject. It does mean, however, that you must be willing to do whatever is necessary to learn. Try
to understand why it is important and how it will help you now and later to do and learn other things.
Knowing mathematics facts will be useful in your whole life. Knowing how to spell makes any kind of
writing easier. Sometimes the subject that you think is going to be uninteresting will be exciting when you
begin to work at it and understand it more clearly. Learning things can be fun if you are willing to work
with them.
Here"s some advice for you: have a certain time each day and a quiet place with good lighting for study, so that you can concentrate on your study without interruptions; have everything ready before you sit
down to study, a dictionary, paper, a pen and books; be sure you understand what you should learn
before you start; read carefully and pay special attention to the most important things; when memorizing,
first find out the main parts and then recite the whole thing; check your homework after you finish it; never
forget the importance of review and preview.
Don"t try to spend a lot of time researching learning methods. There are many students who know many good learning methods but don"t study well. They forget that the most useful learning method is to study
hard.
B. to make the readers be interested in study
C. to tell the importance of self teaching
D. to tell the students how to study well
B. you must follow the teacher
C. you must enjoy learning
D. you must study hard
B. To study at any possible time and place.
C. To review and preview
D. To pay attention to the most important things.
B. Finding the best learning method is the most important in learning.
C. Knowing good methods, you can"t be good at study without working hard.
D. Once we have mastered a good learning method, we can improve our study greatly.
B. Better late than never
C. Study comes first
D. Good methods, good results.
inspired by insects" hard outer shells. The material"s inventors say it has a number of possible uses and
someday could provide a more environmentally friendly alternative to plastic. The material, made from
shrimp (虾) shells and proteins produced from silk, is called "shrilk." It is thin, clear, flexible and strong.
A major benefit of the material is its biodegradability. Plastic"s toughness and flexibility represented a
revolution in materials science during the 1950s and "60s. Decades later, however, plastic"s very
durability (耐用性) is raising questions about how appropriate it is for one-time products such as plastic
bags, or short-lived consumer goods, used in the home for a few years and then cast into a landfill where
they will degrade for centuries. What is the point of making something that lasts 1,000 years?
Shrilk not only will degrade in a landfill, but its basic components are used as fertilizer (肥料), and so
will enrich the soil.
Shrilk has great potential, the inventors said. Materials from which it is made are plentiful in nature,
found in everything ranging from shrimp shells, insect bodies to living plants. That makes shrilk low cost,
and its mass production possible should it be used for products demanding a lot of material.
Work on shrilk is continuing in the lab. The inventors said the material becomes flexible when wet, so
they"re exploring ways to use it in wet environments. They"re also developing simpler production
processes, which could be used for non-medical products, like for computer cases and other products
inside the home. They"re even exploring combining it with other materials, like carbon fibers, to give it
new properties.
B. interesting name
C. major features
D. basic elements
B. Producing it cheaply.
C. Developing its properties quickly.
D. Evaluating its contributions fairly.
B. it can be found in living things
C. its mass production has been realized
D. its raw materials are abundant in nature
B. Testing shrilk"s use in wet conditions.
C. Making shrilk out of used household goods.
D. Improving shrilk"s flexibility for medical purposes.
B. Benefits of Insects in Scientific Research
C. The Harm of One-time Products
D. A Possible Alternative to Plastic
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