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阅读理解
Lakeland, Flo. April 29--Two cars fell to the bottom of a 30-foot sinkhole（灰岩坑）that appeared so suddenly that the drivers could not avoid it.
No one was hurt, but the incident was the fifteenth of its kind reported in this area so far this year.
At a town 13 miles from Lakeland, two bedrooms of one house dropped into a hole 60 feet across and 35 feet deep. Part of the next house was dangerous over the hole. The people in both houses had to be taken to safety.
Sinkholes have been happening without warning in this part of Florida for years. So far there is no way to predict（预言）when or where one will appear. But when one does, others usually follow in the same area, usually along a straight line.
The worst sinkhole appeared in 1965. It was 70 feet across and 150 feet deep. It destroyed one house and damaged several others.
One hole, 15 feet deep, opened up this year in the middle of a highway 19 seconds after a car had driven by. Others in the same area happened at night, damaging houses, swallowing up trees and parts of streets and causing 23 frightened people to run away from their homes in nightclothes.
Sinkholes happen when the weather is very dry. The earth at the surface begins to drop into holes underneath. This is how a sinkhole is formed.
（1）Sinkholes do not happen
[ ]
A. after a rainstorm
B. in a straight line
C. when it is very dry
D. at night
（2）When one sinkhole appears, others usually follow _______.
[ ]
A. everywhere
B. on straight highways only
C. in the neighborhood
D. immediately
（3）Sinkholes take place because _______.
[ ]
A. there are large holes under houses
B. Lakeland has an underground lake
C. wet earth sucks in heavy things such as cars and houses
D. dry earth changes position and fills underground holes
（4）The main idea of this passage is that _______.
[ ]
A. sinkholes have caused damage in the Lakeland area
B. sinkholes always happen
C. drivers can not avoid sinkholes
D. sinkholes are of very large size
查看习题详情和答案>>阅读理解
Lakeland, Flo. April 29--Two cars fell to the bottom of a 30-foot sinkhole（灰岩坑）that appeared so suddenly that the drivers could not avoid it.
No one was hurt, but the incident was the fifteenth of its kind reported in this area so far this year.
At a town 13 miles from Lakeland, two bedrooms of one house dropped into a hole 60 feet across and 35 feet deep. Part of the next house was dangerous over the hole. The people in both houses had to be taken to safety.
Sinkholes have been happening without warning in this part of Florida for years. So far there is no way to predict（预言）when or where one will appear. But when one does, others usually follow in the same area, usually along a straight line.
The worst sinkhole appeared in 1965. It was 70 feet across and 150 feet deep. It destroyed one house and damaged several others.
One hole, 15 feet deep, opened up this year in the middle of a highway 19 seconds after a car had driven by. Others in the same area happened at night, damaging houses, swallowing up trees and parts of streets and causing 23 frightened people to run away from their homes in nightclothes.
Sinkholes happen when the weather is very dry. The earth at the surface begins to drop into holes underneath. This is how a sinkhole is formed.
（1）Sinkholes do not happen
[ ]
A. after a rainstorm
B. in a straight line
C. when it is very dry
D. at night
（2）When one sinkhole appears, others usually follow _______.
[ ]
A. everywhere
B. on straight highways only
C. in the neighborhood
D. immediately
（3）Sinkholes take place because _______.
[ ]
A. there are large holes under houses
B. Lakeland has an underground lake
C. wet earth sucks in heavy things such as cars and houses
D. dry earth changes position and fills underground holes
（4）The main idea of this passage is that _______.
[ ]
A. sinkholes have caused damage in the Lakeland area
B. sinkholes always happen
C. drivers can not avoid sinkholes
D. sinkholes are of very large size
查看习题详情和答案>>An Australian man who has been donating his extremely rare kind of blood for 56 years has saved the lives of more than two million babies.
James Harrison has an antibody in his plasma that stops babies dying from Rhesus disease, a form of severe anaemia. He has enabled countless mothers to give birth to healthy babies, including his own daughter, Tracey, who had a healthy son thanks to her father's blood.
Mr. Harrison has been giving blood every few weeks since he was 18 years old and has now racked up a total of 984 donations. When he started donating, his blood was deemed so special that his life was insured for one million Australian dollars.
He was also nicknamed the “man with the golden arm” or the “man in two million”. He said: “I've never thought about stopping. Never.” He made a pledge to be a donor aged 14 after undergoing major chest surgery in which he needed 13 litres of blood. “I was in hospital for three months,” he said. “The blood I received saved my life so I made a pledge to give blood when I was 18.”
Just after he started donating he was found to have the rare and life-saving antibody in his blood. At the time, thousands of babies in Australia were dying each year of Rhesus disease. Other newborns suffered permanent brain damage because of the condition. The disease creates an incompatibility between the mother's blood and her unborn baby's blood. It stems from one having Rh-positive blood and the other Rh-negative.
His blood has since led to the development of a vaccine called Anti-D. After his blood type was discovered, Mr. Harrison volunteered to undergo a series of tests to help develop the Anti-D vaccine. “They insured me for a million dollars so I knew my wife Barbara would be taken care of,” he said. “I wasn't scared. I was glad to help. I had to sign every form going and basically sign my life away.”
Mr. Harrison is Rh-negative and was given injections of Rh-positive blood. It was found his plasma could treat the condition and since then it has been given to hundreds of thousands of women. It has also been given to babies after they are born to stop them developing the disease.
It is estimated he has helped save 2.2 million babies so far. Mr. Harrison is still donating every few weeks now.
How old is James Harrison？
A. 56 B. 70 C. 74 D. 78
What does the underlined phrase “two million” refer to?
A. babies B. mothers C. dollars D. all of the above
Why did James decide to donate his blood? Because _____.
A. his daughter asked him to help her son
B. he has a golden arm worth a million dollars
C. a vaccine called Anti-D is to be developed
D. someone else’s blood saved his life
The sentence “The disease creates an incompatibility between the mother's blood and her unborn baby's blood” (underlined in Paragraph 5) suggests that _____.
A. babies suffer permanent brain damage before born
B. the mother and the baby have different types of blood
C. Rhesus disease contributes to permanent brain damage
D. all the patients have a rare antibody in their blood
What can we infer from the sixth paragraph?
A. Some of the tests to develop the vaccine are dangerous.
B. His wife Barbara needed to be taken care of badly then.
C. Mr. Harrison was glad to help develop a new vaccine.
D. His blood type was accidentally discovered after tests.
查看习题详情和答案>>Passage four(preface)
Science is a dominant theme in our culture. Since it touches almost every facet of our life, educated people need at least some acquaintance with its structure and operation. They should also have an understanding of the subculture in which scientists live and the kinds of people they are. An understanding of general characteristics of science as well as specific scientific concepts is easier to attain if one knows something about the things that excite and frustrate the scientist.
This book is written for the intelligent student or lay person whose acquaintance with science is superficial; for the person who has been presented with science as a musty storehouse of dried facts; for the person who sees the chief objective of science as the production of gadgets; and for the person who views the scientists as some sort of magician. The book can be used to supplement a course in any science, to accompany any course that attempts to give an understanding of the modern world, or – independently of any course – simply to provide a better understanding of science. We hope this book will lead readers to a broader perspective on scientific attitudes and a more realistic view of what science is, who scientists are, and what they do. It will give them an awareness and understanding of the relationship between science and our culture and an appreciation of the roles science may play in our culture. In addition, readers may learn to appreciate the relationship between scientific views and some of the values and philosophies that are pervasive in our culture.
We have tried to present in this book an accurate and up-to-date picture of the scientific community and the people who populate it. That population has in recent years come to comprise more and more women. This increasing role of women in the scientific subculture is not an unique incident but, rather, part of the trend evident in all segments of society as more women enter traditionally male-dominated fields and make significant contributions. In discussing these changes and contribution, however, we are faced with a language that is implicitly sexist, one that uses male nouns or pronouns in referring to unspecified individuals. To offset this built-in bias, we have adopted the policy of using plural nouns and pronouns whenever possible and, when absolutely necessary, alternating he and she. This policy is far form being ideal, but it is at least an acknowledgment of the inadequacy of our language in treating half of the human race equally.
We have also tried to make the book entertaining as well as informative. Our approach is usually informal. We feel, as do many other scientists, that we shouldn’t take ourselves too seriously. As the reader may observe, we see science as a delightful pastime rather than as a grim and dreary way to earn a living.
1.According to the passage, ‘scientific subculture’ means
A.cultural groups that are formed by scientists.
B.people whose knowledge of science is very limited.
C.the scientific community.
D.people who make good contribution to science.
2.We need to know something about the structure and operation of science because
A.it is not easy to understand the things that excite and frustrate scientists.
B.Science affects almost every aspect of our life.
C.Scientists live in a specific subculture.
D.It is easier to understand general characteristics of science.
3.The book mentioned in this passage is written for readers who
A.are intelligent college students and lay person who do not know much about science.
B.are good at producing various gadgets.
C.work in a storehouse of dried facts.
D.want to have a superficial understanding of science.
4.According to this passage,
A.English is a sexist language.
B.only in the scientific world is the role of women increasing rapidly.
C.women are making significant contributions to eliminating the inadequacy of our language.
D.male nouns or pronouns should not be used to refer to scientists.
5.This passage most probably is
A.a book review.
B.the preface of a book.
C.the postscript of a book.
D.the concluding part of a book.
查看习题详情和答案>>Art is for everyone. Parents can help kids appreciate art by making it available for them. Unfortunately, many adults do not enjoy art simply because they do not understand the stories or context (背景). Actually, children can appreciate art as well as any adult. Here are some simple ways to encourage children to appreciate art.
Find art that will allow children to easily make a connection with their lives. Choose the material according to their ages. Pictures and sculptures of children, for example, or dogs and cats are easily understood, and it is easy to start a conversation about how the themes in the art are connected with familiar people and animals in kids’ lives. Music and dance are very important to children and should also be used.
Explore the stories behind famous, and not so famous, art. Encourage children to make up their own stories about paintings and then research the real story behind the paintings.
Create art with children. Teach them that art is not something that they must only observe but something that they can create. Discuss art with children. Encourage them to express their views on art. Let them know that it is okay to dislike something, and listen to their preferences when planning events.
Visit museums and performances. Explore the artwork in local museums that will interest them. Most cities have children’s theaters and music groups, and often free performances are offered. Many art museums have special tours for children.
Through a variety of artistic experiences, kids will learn how to appreciate art and will enjoy it.
64. When choosing art for children, parents should________.
A. take their children’s ages and experiences into consideration
B. pay close attention to their children’s ability to understand
C. ask professional artists for some useful advice
D. try to find some art beyond their imagination
65. Which of the following should not be down in creating art with children?
A. Allowing children to speak out their own opinions on art.
B. Allowing children to have their own likes and dislikes.
C. Making children interested in everything about art.
D. Talking with children about something on art.
66. We can learn from the text that helping children appreciate art_________.
A. is highly necessary for their growth
B. will improve their school performance
C. can help them make more friends at school
D. needs parents’ encouragement and instruction
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