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I have many friends, so my best friend is called Li Ting. I met him about five years before in a class where we attended together. Though we didn¡¯t know each other before, but we have lots of things in common. At that time, the pressure on us to study was quite heavily. We both hoped to pass the National College Entrance Exam and entered university. She was very diligent and we both studied hard. I was good at maths while she good at English. Finally, we both did very well in the exam. In fact, she gave me a lot of helps with my study. Our friendship has growing a great deal over the last five years.
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No one is sure how the ancient Egyptians built the pyramids near Cairo. But a new study suggests they used a little rock¡®n¡¯roll. Long-ago builders could have attached wooden poles to the stones and rolled them across the sand, the scientists say.
¡°Technically, I think what they¡¯re proposing is possible,¡± physicist Daniel Bonn said.
People have long puzzled over how the Egyptians moved such huge rocks. And there¡¯s no obvious answer. On average, each of the two million big stones weighed about as much as a large pickup truck. The Egyptians somehow moved the stone blocks to the pyramid site from about one kilometer away.
The most popular view is that Egyptian workers slid the blocks along smooth paths. Many scientists suspect wokers first would have put the blocks on sleds(»¬°å). Then they would have dragged them along paths. To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle. Bonn has now tested this idea by building small sleds and dragging heavy objects over sand.
Evidence from the sand supports this idea. Researchers found small amounts of fat, as well as a large amount of stone and the remains of paths.
However , physicist Joseph West think there might have been a simpler way , who led the new study . West said , ¡°I was inspired while watching a television program showing how sleds might have helped with pyramid construction . I thought , ¡°Why don¡¯t they just try rolling the things ? ¡± A square could be turned into a rough sort of wheel by attaching wooden poles to its sides , he realized . That , he notes , should make a block of stone ¡°a lot easier to roll than a square¡±.
So he tried it.
He and his students tied some poles to each of four sides of a 30-kilogram stone block.That action turned the block into somewhat a wheel.Then they placed the block on the ground.
They wrapped one end of a rope around the block and pulled.The researchers found they could easily roll the block along different kinds of paths.They calculated that rolling the block required about as much force as moving it along a slippery(»¬µÄ)path.
West hasn¡¯t tested his idea on larger blocks,but he thinks rolling has clear advantages over sliding.At least,workers wouldn¡¯t have needed to carry cattle fat or water to smooth the paths.
1.It¡¯s widely believed that the stone blocks were moved to the pyramid site by ______.
A.rolling them on roads
B.pushing them over the sand
C. dragging them on some poles
D. sliding them on smooth paths
2.What does the underlined word ¡°it¡±in Paragraph 7 refer to?
A. rolling the blocks with fat.
B.Rolling the blocks on wooden wheels.
C.Rolling poles to move the blocks.
D. Rolling the blocks with poles attached.
3.Why is rolling better than sliding according to West ?
A. Because more force is needed for sliding.
B. Because less preparation on path is needed for rolling.
C. Because sliding on smooth road is more dangerous.
D. Because rolling work can be done by fewer cattle.
4.What is the text mainly about ?
A. An experiment on ways of moving blocks to the pyramid site.
B. An argument about different methods of moving blocks to the pyramid site.
C. An application of the method of moving blocks to the pyramid site.
D. An introduction to a possible new way of moving blocks to the pyramid site.
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The speaker mentioned many examples people lived through hard times and succeeded at last£®
A£®which B£®whose C£®when D£®where
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There are many ways to find a job. It can be as easy as walking into a neighborhood store to look at its announcement board . Local stores often have areas where people can put small signs telling what kind of service they need or can provide. Such services include caring for children or cleaning houses.
Or£¬job searchers can look in the newspaper. Local newspapers have employment announcements placed by companies seeking workers.
Another popular tool for finding jobs is the Internet. For example, people in four hundred and fifty cities around the world can use the Craigslist Web site to buy objects£¬meet people or find a job. Craigslist says that it receives two million new job listings each month.
Another useful way to find a job is through a college or university. For example£¬students at the University of Texas in Austin can go to the Career Exploration Center to get help in finding a job. Of course£¬looking for a job requires knowing what kind of work you want to do. For example£¬there is a book called "What Color is Your Parachute£¨½µÂäÉ¡£©£¿¡±by Richard Bolles. This book has been helping people choose a career£¨Ö°Òµ£©since it was first published in 1970£®
Some experts also help people find jobs. Susan W.Miller owns a company called California Career Services in Los Angeles£®She says her company helps people find jobs by first helping them understand their strengths, goals and interests. Then she provides them with methods and resources to help them find the right job.
1.What is the passage mainly about£¿
A. Finding a job.
B. College students' part-time jobs.
C. Craigslist Web site.
D. The relation between study and work
2.By logging on the Craigslist Web site£¬you can £®
A. sell your old things
B. do some shopping online
C. create your own announcement board
D. get useful information about 450 cities
3.¡°What Color is Your Parachute?¡±is a book which gives tips to those who want to .
A. work on the airplane B. buy a parachute
C. publish a book D. find a suitable job
4.How many ways of finding a job are mentioned in the passage?
A. Three. B. Four. C. Five. D. Six.
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The international situation is currently undergoing great changes ______ UNESCO plays an irreplaceable role in promoting international cooperation.
A. which B. what C. where D. that
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1.Many reasons ______ _______ _______ _________ to account for
Napoleon's fame.
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2.________ ________you put the sun there ____________the movements of the
other planets in the sky____________ ____________.
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3.Some children become _______ ________ ________ the foreign snacks that
they will go eating whenever possible.
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4.___________ ____________ ____________ that the industrial cities built in
the nineteenth century do not attract visitors.
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5.The two countries have much____________ ____________.
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6.Little Tom was not __________ __________ _______ the accident. After all,
he is only a child.
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7.However, I ________ __________ __________ Wang Ping because of too
many carriages flying by.
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8.____________£¨exhaust£©, I slid into bed and fell fast asleep.
ÎҸе½ÀÛ¼«ÁË, ÅÀÉÏ´²ºÜ¿ì¾Í˯×ÅÁË¡£
9.We should try our utmost to _______ _________ ________ _________the
development of our motherland.
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10.Both Australia and New Zealand _________ __________ wool industry.
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As is known, that it is interested to teach children to swim while they are still babies. Most large town in Florida and California have already run particularly lessons for babies. The idea has quickly spread to Europe which, in several countries, special courses were now offered to children who are from 7 to 24 months old. The first step is to have a child get rid of the fear with water. Next, he is teaching to float in water. Once he can do that naturally and can swim with fear, the child can master the technique and push him forward through water.
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Eating at a slow speed may help reduce hunger, the U.S. researchers said on Monday. Previous research suggests that the ability to control energy intake may be affected by the speed at which we eat, and a high eating rate may damage the relationship between the sensory signals and processes that control how much we eat.
In order to learn more about the link between eating speed and energy intake, researchers examined how eating speed affects calories consumed during a meal in both normal-weight subjects as well as overweight or obese subjects.
In the new study, a group of normal-weight subjects and a group of overweight or obese subjects were asked to consume two meals in a controlled environment. All subjects ate one meal slowly, took small bites, chewed thoroughly, and paused and put the spoon down between bites, and ate a second meal quickly, took large bites, chewed quickly, and did not pause and put the spoon down.
At the conclusion of the study, the researchers found only normal-weight subjects had a statistically significant reduction in caloric consumption by eating slowly. ¡°A lack of statistical significance in the overweight and obese group may be partly due to the fact that they consumed less food during both eating conditions compared to the normal-weight subjects,¡± Professor Meena Shah said, ¡°it is possible that the overweight and obese subjects felt more self-conscious, and thus ate less during the study.¡±
Despite the differences in caloric consumption between the normal-weight and overweight and obese subjects, the study found some similarities. Both groups felt less hungry later on after the slow meal than after the fast meal, which indicates that greater hunger suppression£¨ÒÖÖÆ£©among both groups could be expected from a meal consumed more slowly. Also, both the normal-weight and overweight or obese groups consumed more water during the slow meal. ¡°The higher water intake during the slow eating condition may have affected food consumption,¡± said Shah. According to Shah, slowing the speed of eating may help suppress hunger levels and ¡°may even improve the enjoyment of a meal¡±.
The findings were published in the Journal of the Academy of Nutrition and Dietetics.
1.What does the previous study have in common with the new one?
A. There is a link between eating speed and energy intake.
B. Eating at a slow speed may help feel hungry.
C. Eating too fast may damage your stomach.
D. Eating rate may affect processes controlling how much we eat.
2.What should the subjects do during the research?
A. Both groups could totally eat the meals at any speed as they liked.
B. Both groups had to consume one meal in controlled eating conditions.
C. Both groups were asked to eat one meal slowly while the other quickly.
D. One group should eat slowly while the other one quickly.
3.What caused the lack of statistically significant reduction in the overweight and obese group?
A. They were told not to eat a lot.
B. In the study they had no appetite to eat.
C. They lost consciousness in the study.
D. They ate less food on purpose.
4.What is the passage mainly about?
A. New research findings about how to control eating rate.
B. A study about the link between eating speed and energy intake.
C. One may feel less hungry later on after the slow meal than after the fast meal.
D. Water intake may have affected food consumption.
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________ Chai Jing said in her video about the smog has caused public concern.
A. That B. Which C. How D. What
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