to move forward or threatened and thinking of moving back, a study has found.
Researchers in Italy examined the tail wagging behavior of 30 dogs, catching their responses to a range
of stimuli (刺激物) with video cameras. To conduct the study they chose 15 male dogs and 15 female ones
aged between one and six years. The dogs were all family pets whose owners had allowed them to take part
in the experiment at Bari University. The dogs were placed in a large wooden box with an opening at the front
to allow for them to view various stimuli. They were tested one at a time.
The researchers led by Professor Giorgio Vallortigara of the University of Trieste found that when the
dogs were shown their owners-a positive experience-their tails wagged energetically to the right side. When
they were shown an unfamiliar human they wagged to the right, but with somewhat less enthusiasm. The
appears of a cat again caused a right-hand side wag, although with less intensity again. The appearance of a
large unfamiliar dog, similar to a German shepherd, changed the direction of tail wagging to the left. Research
ers supposed the dog was thinking of moving back. When the dogs were not shown any stimuli they tended
to wag their tails to the left, suggesting they preferred company. While the changes in the tail wagging were
not easily noticed without the aid of video, it was thought that the findings could help people judge the mood
(心情) of dogs. Computer and video systems, for example, could be used by professional dog trainers to
determine the mood of dogs that they were required to approach.
B. the dogs were put in the wooden boxes and tested one at a time.
C. they enabled the dogs"owners to know about their dogs"habit
D. the dogs wagged their tails in different directions when they were in different moods
B. worry
C. excitement
D. interest
B. wag to the right
C. not wag at all
D. wag to the left and then to the right
B. the trainers
C. the systems
D. the researchers
B. to help people judge the mood of dogs
C. to help dogs find company
D. to help people choose their pet dogs
of sunshine. The warmth of the land heats the air above, causing it to rise and tiny drops of water to fall as
rain. The rainfall can reach at least 98 inches a year. This wet, warm world with plenty of sunlight is perfect
for plants to grow, so the trees grow fast with green leaves all the year round. The trees themselves also hare
an effect on the climate. They gather water from the soil and pass it out into the air through their leaves. The
wet air then forms clouds, which hang over the treetops like smoke. These clouds protect the forest from the
daytime heat and night-time cold of nearby deserts, keep temperatures fit for plant growth.
Rain forests slightly farther away from the equator remain just as warm, but they have a dry season of three
months or more when little rain falls, Tree leaves fall dining this dry season and new leaves grow when the wet
season or monsoon (雨季) begins Thus these areas are known as the "monsoon forest".
Another type of rain forest grows on tropical mountains. It is often called the "cloud forest" because clouds
often hang over the trees like fog.
The rain forest is the ideal place for the growth of many different trees. Most of them depend on animals to
eat their fruits and spread their seeds. When the fruits are eaten, the seeds inside them go undamaged through
animals, stomachs and are passed out in their droppings. The seeds lying on the forest floor then grow into
new trees.
B. hot, rainy and foggy
C. hot, wet and cloudy
D. warm, wet and sunny
B. there is a dry season in the cloud forest on tropical mountains
C. clouds help the plants in the rain forest near the deserts to grow
D. the formation of climate in the rain forest has little to do with the trees
B. droppings
C. fruits
D. winds
B. a story book
C. a technical report
D. a geography book
only a 1050." The unlucky students are speaking of the score on the Scholastic Aptitude Test (SAT),
which is used to determine whether they will be admitted to the college or university of their choice, or
even have a chance to get a higher education at all. The SAT score, whether it is 800, 1 100 or 1550, has
becomes the focus at this time of their life.
It is obvious that if students value highly their test scores, then a great amount of their self-respect is
put in the number. Students who perform poorly on the exam are left feeling that it is all over. The low test
score, they think, will make it impossible for them to get into a good college. And without a degree from a
prestigious university, they fear that many of life"s doors will remain forever closed.
According to a study done in the 1990s, the SAT is only a reliable indicator of a student"s future
performance in most cases. Interestingly, it becomes much more accurate when it is set together with other
indication--like a student"s high school grades. Even if standard tests like the SAT could show a student"s
academic proficiency (学业水平),they will never be able to test things like confidence, efforts and willpower,
and are unable to give us the full picture of a student"s potentialities (潜力). This is not to suggest that we
should stop using SAT scores in our college admission process. The SAT is an excellent test in many ways,
and the score is still a useful means of testing students. However, it should be only one of many methods
used.
B. academic ability
C. full potentialities
D. confidence in school work
B. achievements in mathematic
C. job opportunities
D. money spent on education
B. a technical university
C. a traditional university
D. an expensive university
B. stress caused by the SAT
C. American higher education
D. the SAT and its effects
Kate"s weakness is more acceptable-she is unable to walk past a cake shop without overeating Sophin Cartier
finds her cigarette habit a headache, while Alice"s thumb-sucking drives her boy friend crazy. Four people
with very different habits, but they all share a common problem anxiety disorder or, in serious cases. Obessive
Compulsive Disorder (OCD).
From nail-biting to too much hand-washing, overeating and internet addiction (上瘾),OCD is widespread
in almost every workplace and countless home."It is a relatively common form of anxiety," says Dr. Mootee.
"The main feature of OCD is the repetition of unwanted obsessive (过度的) thoughts such as worries that
doors are left unlocked, gas or electrical appliances are left on." In order to fight against the an essay checking
door locks and gas or electrical appliances.
Dr. Mootee says that repetitive washing, particularly of the hands, is the most common type of OCD. She
has treated many patients who wash their hands up to 30 times a day. The technique Mootee uses to treat
people with OCD is called cognitive-behavioral therapy (认知行为疗法). "It is based on the general idea that
people have the ability to change the way they think and behave," says Mootee.
But when does a habit become a problem? "It"s personal," says Mootee. "Everyone has something unusual,
but if you can"t put up with it, then it"s a problem and you need to do something to change it." Mootee says
many people ready for treatment because they fear they are "crazy". But as people become more knowledgeable about these problems they will go and get help. The only way to cure is to conquer.
B. hurting himself
C. sucking fingers
D. biting nails
B. gets into unwanted habits to relieve stress
C. has unwanted thoughts about habits
D. has unwanted thoughts because of illness
B. people can put up with their problems
C. people can change their way of thinking and action
D. people tend to repeat their obsessive actions
B. must cure his illness by himself
C. must overcome many physical illnesses
D. should have a right attitude towards the problem
Unlike the other disciplines (学科), philosophy cannot e defined by what you study,because it si actually
unlimited. Anything can be the subject matter of philosophy: are, history, law, language, literature,
mathematics, and in fact, the other academic disciplines are directly related to philosophy. For this reason
you get a Doctorate (博士学位) of Philosophy (Ph. D.) in biochemistry, or computer science, or
psychology.
Two broad sub-fields of philosophy are logic and the history of philosophy. Logic is the science of
argument and critical thinking. It provides sound methods for distinguishing good from bad reasoning.
The history of philosophy involves the study of major philosophers and period in the development of
philosophy.
Of what use is philosophy? First it is useful in educational advancement. It is necessary for understanding
other disciplines. Only philosophy question the nature of the concepts used in a discipline, and its relation to
other disco[;ones. And through the study of philosophy, one develops sound methods of research and analysis
that can be applied to any field.
There are a number of general uses of philosophy. It strengthens one"s ability to solve problem, to
communicate, to organize ideas and issues, to persuade, and to take what is the most important form a large
quantity of data. These general uses are of great benefit in the career filed, not necessarily for obtaining one"s
first job after graduation,but for preparing for positions of responsibility, management and leadership later on.
It is very short sighted after all, to take a course of studies only for the purpose of getting one"s first job. The
useful skills developed thought the study of philosophy have significant long-term benefits in career
advancement. No other discipline systematically follows the ideals of wisdom, leadership, and capacity to
resolve human conflict.
B. natural sciences
C. both social and natural sciences
D. the subject matter of politics
B. succeed in everything
C. find a good job soon after graduation
D. make progress in your career development
B. Logic helps you to become a better thinker.
C. The study of philosophy brings you immediate benefits.
D. The meaning of philosophy is too limited to define.
B. a person will get a Ph. D. if he/she studies philosophy
C. philosophy can be helpful for the study of any other subjects
D. philosophy is the only solution to all the problems in the world
Today about 70 countries use Daylight Saving Time (DST). Daylight Saving was first introduced during
World War I in Australia. During the world wars, DST was used for the late summers beginning January
1917 and 1942, and the full summers beginning September 1942 and 1943.
In 1967, Tasmania experienced a drought (干旱). The State Government introduced one hour of daylight
saving that summer as a way of saving power and water. Tasmanians liked the idea of daylight saving and the
Tasmanian Government has declared daylight saving each summer since 1968. Persuaded by the Tasmanian
Government, all states except two passed a law in 1971, for a test use of daylight saving. In 1972, New South
Wales, South Australia and Victoria joined Tasmania for regular daylight saving, but Queensland did not do so
until 1989.
Tasmania, Queensland and South Australia have had irregular plans, often changing their dates due to politics
or festivals (节日). For example, in 1992, Tasmania extended (延长) daylight saving by an extra month while
South Australia began extending daylight saving by two weeks for the Adelaide Festival. Special daylight saving
plans were made during the Sydney 2000 Olympic Games.
The differences in daylight saving in Australia continue to cause serious problems in transport and many
other social activities. It also reduces the number of hours in the working day that are common to all centers
in the country. In particular, time differences along the east coast cause major differences, especially for the
broadcasters of national radio and television.
B. to support government officials
C. to pass a special law in the state
D. to save water and electricity
B. Queensland.
C. South Australia.
D. New South Wales.
B. It is not used in festivals.
C. Its plan was changed in 2000.
D. It lasts for two weeks.
B. It helps little to save energy.
C. It brings about longer working days.
D. Radio and TV programs become different.
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