单选题The use of the chemical may present a certain hazard to the laboratory workers.
单选题阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
{{B}}
Where Have All Our Visitors Gone?{{/B}} Sixty
years ago, a man named Kenneth Arnold saw something that people are still
{{U}}(51) {{/U}} today -something that changed popular culture for
ever. Flying his plane over mountains in the US state of
Washington, he saw a line of strange objects, either crescent -shaped or
disc-like, flying {{U}}(52) {{/U}} the motion of a saucer skimming on
water. The media soon picked up on the story -the Flying Saucers
were here! Was the earth being {{U}}(53) {{/U}} by creatures from
another planet? Soon, so many sightings were made that the US military began to
{{U}}(54) {{/U}}. It called these strange objects UFOs -Unidentified
Flying Objects, and that is how they are {{U}}(55) {{/U}}
today. Military investigations found no evidence of visitors
from outer space. But that did not stop the true {{U}}(56) {{/U}}. The
military were {{U}}(57) {{/U}} up, they said. Or {{U}}(58)
{{/U}} it was because the travelers from space were of such superior
intelligence that they could hide from the most sophisticated military
analysts. People have always seen strange lights in the sky. In
the past these were explained in {{U}}(59) {{/U}} ways. In a world where
religion was less influential and science fiction was popular, signs from god
were replaced by visitors from other {{U}}(60) {{/U}}.
The date of the first UFO signings was also significant. In 1947, World
War Ⅱ had just ended and the {{U}}(61) {{/U}} war was just beginning.
Humanity seemed locked in endless conflicts. Like generations before them,
people looked {{U}}(62) {{/U}} the skies for help. But instead of
seeking God, they looked for help from super-intelligent aliens with
{{U}}(63) {{/U}} technology. Belief in UFOs became the first religion of
science. However, even people who believe in UFOs are not quite
sure why they visit the earth. The universe is a big place and it is
{{U}}(64) {{/U}} to assume that there is life somewhere out there. It is
possible that aliens have worked out how to travel through space. Yet some
people report that they have been taken by aliens and have had experiments
{{U}}(65) {{/U}} on them. Why would anyone travel across half the
universe to conduct medical experiments on people living in small towns in the
United States?
单选题By investing wisely she
accumulated
a lot of books.
单选题His final remarks didn't make much {{U}}impact{{/U}} on us.
单选题Last year, the crime rate in Chicago has sharply
dropped
.
单选题No part of New Hampshire is far from water. A．mountain B．town C．section D．village
单选题The legislative
provision
has a great impact on the operations of the department.
单选题They have been living under the most
appalling
conditions for two years. ______
单选题When does the next train depart?
单选题The dentist has decided to extract her had tooth.A. take outB. repairC. pullD. dig
单选题 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案。
{{B}}An Early Form of Jazz Music{{/B}} Music
comes in many forms; most countries have a style of their own. At the turn of
the last century, {{U}}(51) {{/U}}jazz was born, America had no
prominent. {{U}}(52) {{/U}}of its own. No one knows exactly when it was
invented or by whom. But it began to be{{U}} (53) {{/U}}in the early
1890s. Jazz is America's contribution to{{U}} (54) {{/U}}music. In
contrast to classical music, which{{U}} (55) {{/U}}formal European
traditions, jazz is spontaneous and free in form. It bubbles with energy,
{{U}}(56) {{/U}}the moods, interests, and emotions of the people. In the
1920s jazz{{U}} (57) {{/U}}like America. And so it does today. The{{U}}
(58) {{/U}}of the music are as interesting as the music itself.
American Negroes, or blacks, as they are called today, were the jazz pioneers.
They were brought to the Southern states{{U}} (59) {{/U}}slaves. They
were sold to plantation owners and forced to work long hours. When a Negro died
his friends and relatives{{U}} (60) {{/U}}a procession to carry the body
to the cemetery. In New Orleans, a band often accompanied the{{U}} (61)
{{/U}}. On the way to the cemetery the band played slow, solemn music suited
to the occasion. {{U}}(62) {{/U}}on the way home the mood changed.
Spirits lifted. Death had removed one of their number, but the living were glad
to be{{U}} (63) {{/U}}. The band played{{U}} (64) {{/U}}music,
improvising on both the harmony and the melody of the tunes{{U}} (65)
{{/U}}at the funeral. This music made everyone want to dance. It was an
early form of jazz.
单选题When did women start taking part in the Olympic Games?
单选题It frustrates me that I'm not able to put any of my ideas into practice.
单选题I can't put up uitl his behaviors any more.A. tolerateB. careC. misunderstandD. disappoint
单选题
阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，并填在题前的括号内。
{{B}}Where Did All the Ships Go?{{/B}} The Bermuda Triangle is
one{{U}} (1) {{/U}}the greatest mysteries of the sea. In this
triangular area between Florida, Puerto Rico and Bermuda in Atlantic, ships and
airplanes{{U}} (2) {{/U}}to disappear more often than in{{U}} (3)
{{/U}}parts of the ocean. And they do so{{U}} (4) {{/U}}leaving
any sign of all accident or any dead bodies. It is{{U}} (5)
{{/U}}that Christopher Columbus was the first person to record strange
happenings in the area. His compass stopped working, a flame came down from the
sky, and a wave 100 to 200 feet high carried his ship about a mile
away. The most famous disappearance in the Bermuda Triangle was
the US Naval Air Flight 19.{{U}}(6) {{/U}}December 5, 1945, five
bomber planes carrying 14 men.{{U}} (7) {{/U}}on a training mission
from the Florida coast. Later that day, all communications with Flight 19 were
lost. They just disappeared without a trace. The next morning,
242 planes and 19 ships took part in the largest air-sea search in history. But
they found nothing. Some people blame the disappearances{{U}}
(8) {{/U}}supernatural forces. It is suggested the{{U}}(9)
{{/U}}ships and planes were either transported to other times and places,
kidnapped by aliens{{U}} (10) {{/U}}attacked by sea
creatures. There are{{U}} (11) {{/U}}natural
explanations, though. The US Navy says that the Bermuda triangle is one of two
places on earth{{U}} (12) {{/U}}a magnetic compass points towards
true north{{U}} (13) {{/U}}magnetic north.{{U}} (14)
{{/U}}planes and ships can lose their way if they don't make
adjustments. The area also has changing weather and is known{{U}}
(15) {{/U}}its high waves. Storms can turn up suddenly and destroy a
plane or ship. Fast currents could then sweep away any trace of an
accident. Bermuda Triangle 百慕大三角区 Florida
4佛罗里达(美国的一个放) Pueto Rico波多黎各 Compass
n.罗盘,指南针 supernatural adj. 超自然 kidnap v.
绑架 alien n.外星人 magnetic adj.有磁性的
trace n. 痕迹
单选题The American Family
In the American family the husband and wife usually share important decision making. When the children are
1
enough, they take part as well. Foreigners are often surprised by the permissiveness (宽容) of American parents. The old rule that "children should be seen and not heard" is rarely
2
, and children are often allowed to do
3
they wish without strict control of their parents. The father seldom expects his children to listen to him
4
question, and children are encouraged to be
5
at an early age. Some people believe that American parents carry this freedom
6
far. Others think that a strong father image would not
7
the American values of equality and independence. Because Americans emphasize the importance of independence, young people are expected to
8
their parental families by the time they have
9
their late teens or early twenties. Indeed, not to do so is often regarded as a
10
, a kind of weak dependence.
This pattern of independence often results in serious
11
for the aging parents of a small family. The average American is expected to live
12
the age of 70. The job-retirement age is
13
65. The children have left home, married, and
14
their own households. At least 20 percent of all people over 65 do not have enough retirement incomes.
15
the major problem of many elderly couples is not economic. They feel useless and lonely with neither an occupation nor a close family group.
单选题
A Success Story At 19,
Ben Way is already a millionaire, and one of a growing number of teenagers who
have {{U}} {{U}} 1 {{/U}} {{/U}}their fortune through the
Internet. {{U}} {{U}} 2 {{/U}} {{/U}}makes Ben's story all the
more remarkable is that he is dyslexic, and was {{U}} {{U}} 3
{{/U}} {{/U}}by teachers at his junior school that he would never be able to
read or write {{U}} {{U}} 4 {{/U}} {{/U}}. "I wanted to prove
them {{U}} {{U}} 5 {{/U}} {{/U}}", says Ben, creator and
director of Waysearch, a net search engine which can be used to find goods in
online shopping malls. When he was eight, his local authorities
{{U}} {{U}} 6 {{/U}} {{/U}}him with a PC to help with school
work. Although he was {{U}} {{U}} 7 {{/U}} {{/U}}to read the
manuals, he had a natural ability with the computer, and {{U}} {{U}}
8 {{/U}} {{/U}}by his father, he soon began {{U}} {{U}} 9
{{/U}} {{/U}}people $10 an hour for his knowledge and skills. At the age of 15
he {{U}} {{U}} 10 {{/U}} {{/U}}up his own computer consultancy,
Quad Computer, which he ran from his bedroom, and two years later he left school
to {{U}} {{U}} 11 {{/U}} {{/U}}all his time to
business. "By this time the company had grown and I needed to
take on a {{U}} {{U}} 12 {{/U}} {{/U}}of employees to help me",
says Ben. "That enabled me to start {{U}} {{U}} 13 {{/U}}
{{/U}}business with bigger companies." It was his ability to consistently
{{U}} {{U}} 14 {{/U}} {{/U}}difficult challenges that led him to
win the Young Entrepreneur of the Year award in the same year that he formed
Waysearch, and he has recently signed a deal {{U}} {{U}} 15
{{/U}} {{/U}}$25 million with a private investment company, which will finance
his search engine.
单选题As a result of careless washing the jacket was reduced to a child's size. A. compressed B. shrank C. dropped D. decreased
单选题The board of the company has decided to
widen
its operation to include all aspects of the clothing business.
单选题t is not special in Britain to see ______________.