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Since colonial times, black people in South Africa have been______ by the white minority.
A．depressed
B．suppressed
C．oppressed
D．repressed
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Recurrence rates of earthquakes can help predict future quakes because ______.
A．improvement in mathematics allows figures to be very accurate
B．this method has been used since ancient times and proved very effective
C．most scientists focus their investigations on the quakes of certain areas
D．continuous plate movements often result in earthquakes in certain areas
听力原文： The animals you would have seen on a typical farm in Massachusetts in the early 1800s would not look quite the same as the ones you might see in the 1980s. In colonial times settlers brought cattle and sheep with them to America from various parts of Europe. Because the settlers were busy building houses, clearing land and planting crops, they had little time to care for their animals. The cattle and sheep had to fend for themselves and females were bred to whatever bulls or rams in the neighborhood. These matings resulted in mixed breeds of cattle and sheep that can hardly survive under adverse conditions. As the herds grew, they provided the settlers with meat as well as milk and wool. That was almost all the 19th- century farm families needed, enough food for themselves and a little surplus that could be traded for things they couldn't produce at home. Now the survival of farm animals is not so precarious. Breeding is much more selective and specialized, pure-bred cattle and sheep predominate, some bred for their meat, others for their milk or wool.
(33)
A．The differences between sheep and cattle breeding.
B．Living conditions in the colony of Massachusetts.
C．Food shortages in the early 1800s.
D．Livestock raising on early American farms.
听力原文： Since man first scrawled in the dirt with his finger, people have searched for better ways to record the written word. Today, that quest is perhaps best exemplified by one of the writing instrument industry's leaders: Parker Pen.
In America, the pen-making industry officially began in 1809. But, it wasn't until the 1880s that the fountain pen as we now know got its start. Among the early industry leaders was George Safford Parker, a school teacher from Janesville, who became frustrated with the unreliability of the writing instruments then available to his students.
To improve his insufficient teaching salary, Parker had a sideline as an agent for John Holland fountain pens. The pens were unreliable, delivering too much ink at times and at other times, no ink at all. In any case, Parker felt obligated to repair the pens he sold to his students. So, he purchased a few small tools, and began to learn the inner workings of fountain pens. As the students learned they could depend on their teacher to keep their pens in working order, the number of pens he sold increased, so did his frustration. Finally, he decided he could make a better pen himself. And he did.
Parker patented his first fountain pen design on December 10, 1889. Two years later he entered a partnership with insurance man W. E Palmer and in February of 1892 they incorporated the Parker Pen Company.
(30)
A．In 1809.
B．In 1818.
C．In the 1880s.
D．In the 1890s.
Electronic Waste
It has been known since ancient times that certain plants regularly open
their leaves in daytime and close them at night. It was assumed which this 【S1】______
periodic change was triggered by the alternating sunlight and darkness. Such
leaves stick to their daily routine even when keeping in constant darkness. 【S2】______
What is circadian rhythm？ Many biological processes follow a 24-hours 【S3】______
schedule. These cycles are called circadian rhythms. These innate rhythms are
governed by sophisticated chemical mechanisms can be described as biological 【S4】______
clocks. Such rhythms are important for humans too! We sleep through most
of the hours of darkness and are awaken through most of the hours of 【S5】______
daylight. Body temperature increases during the day and decreases during the
night. The secretion of various hormones that controls life's processes rises 【S6】______
and falls to a circadian rhythm.
How does this relate to health？ Circadian rhythms are important for
desirable functioning of the processes vital to health. This is most effectively
illustrated and the normal circadian rhythms are disrupted by lack of sleep or 【S7】______
by crossing time miles. It may take days or even hours for all the bodies 【S8】______
circadian rhythms to read just appropriately. The turmoil (混乱) that results
from the readjustment process when time zones are crossed experienced as the 【S9】______
phenomenon of jet lag. This is also experienced by people who do shift work.
Understanding circadian rhythms may be irrelevant to the understanding and 【S10】______
treatment of disease. Therapy can be more effective and toxic effects reduced
when drugs are administered at carefully selected times of the day.
【S1】
In the United States, parents do not arrange marriages for their children. Teenagers begin【C4】______ in high school and usually find mates through their own academic and social【C5】______ .
Though young people feel【C6】______ to choose their friends from【C7】______ groups, most 'choose a mate of similar background.
This is【C8】______ in part to parental guidance. Parents cannot select spouses for their children, but they can usually【C9】______ choices by【C10】______ disapproval of someone they consider unsuitable.
【C11】______ , marriages between members of different groups (interclass, interfaith, and interracial marriges) are increasing, probably because of the greater【C12】______ of today's youth and the fact that they are restricted by【C13】______ prejudices than their parents. Many young people leave their hometowns to attend college,【C14】______ in the armed forces【C15】______ pursue a career in a bigger city.
Once away from home and family, they are more【C16】 ______ to date and marry outside their own social group.
In mobile American society, interclass marriages are neither【C17】______ nor shocking. Interfaith marriages are【C18】______ the rise, particularly between Protestants and Catholics. On the other hand, interracial marriage is still very uncommon, lit can be difficult for interracial couples to find a place to live, maintain friendships, and【C19】______ a family. Marriages between people of different national【C20】______ (but the same race and religion) have been commonplace since colonial times.
【C1】
A．linking
B．interacting
C．connecting
D．correlating
Especially【C9】______rumors spread when war requires censorship(审查，检查)on many important matters. The customary news sources no longer【C10】______enough information. Since the people cannot learn【C11】______legitimate(合法的，正规的)channels all【C12】______they are anxious to learn, they pick up "news"【C13】______they can and when this【C14】______, rumor thrives.
Rumors are often repeated【C15】______by those who do not believe the tales. There is a fascination about them. The reason is【C16】______the cleverly designed rumor gives expression to something deep in the hearts of the victims—the fears, suspicions, forbidden hopes, or daydreams which they hesitate to【C17】______directly. Pessimistic(悲观的)rumors about defeat and disasters show that the people who repeat them are【C18】______and anxious.【C19】______rumors about record production or peace soon coming point to complacency(满足，自得)or confidence—and often to【C20】______.
【C1】
A．primitive
B．important
C．impossible
D．outstanding
Animation means making things which are lifeless come live and 【S1】______ .
move. Since earliest times, people have always been fascinated by
movement. And not until this century have we managed to capture 【S2】______ .
movement, to record it, and in the case of animation, to reinterpret it 【S3】______ .
and recreate it. To do all this, we use a movie camera and a projector. In
the world of cartoon animation, everything is impossible. You can 【S4】______ .
make the characters you create do exactly that you want them to do. 【S5】______ .
A famous early cartoon character was Felix the Cat, created Pat 【S6】______ .
Sullivan in America in the early nineteen twenties. Felix was a
marvelous cat. He could do all sorts of things no natural cat can do as 【S7】______ .
taking off his tail, using it as a handle and then putting it back. The
famous Walt Disney cartoon characteristics came to life after 1928. 【S8】______ .
Popeye the Sailorman and his girl friend Olive Oyl were born at the
Max Fleischer studios in 1933. But to be an animator, you don't have
to be a professional. It is possible for anyone to make a simple
animated film with using a camera at all. All that you have to do is to 【S9】______ .
draw directly on to blank film and then running the film through a 【S10】______ .
projector.
【S1】
Especially【B9】minors spread when war requires censorship(审查，检查) on many important matters. The customary news sources no longer【B10】enough information. Since the people cannot learn【B11】legitimate(合法的，正规的) channels all【B12】they are anxious to learn, they pick up "news"【B13】they can and when this【B14】, rumor thrives.
Rumors are often repeated【B15】by those who do not believe the tales. There is a fascination about them. The reason is【B16】the cleverly designed rumor gives expression to something deep in the hearts of the victims—the fears, suspicions, forbidden hopes, or daydreams which they hesitate to【B17】directly. Pessimistic(悲观的) rumors about defeat and disasters show that the people who repeat them are【B18】and anxious.【B19】rumors about record production or peace soon coming point to complacency(满足，自得) or confidence—and often to【B20】.
【B1】
A．primitive
B．important
C．impossible
D．outstanding
