Edmund Halley was an English scientist who lived over 200 years ago. He studied the observations of comets (彗星) which other scientists had made. The orbit of one particular comet was a very difficult mathematical problem. He could not figure it out. Neither could other scientists who dealt with such problems. However, Halley had a friend named Newton, who was a brilliant (有才华的) mathematician. Newton thought he had already worked out that problem, but he could not find the papers on which he had done it. He told Halley that the orbit of a comet had the shape of an ellipse (椭圆) .
Now Halley set to work. He figured out the orbits of some of the comets that had been observed by scientists. He made a surprising discovery. The comets that had appeared in the years 1531, 1607, and 1682 all had the same orbit. Yet their appearances had been 75 to 76 years apart (相隔).
This seemed very strange to Halley. The different comets followed the same orbit. The more Halley thought about it, the more he thought that there had not been three different comets, as people thought. He decided that they had simply seen the same comet three times. The comet had gone away and had come back again.
It was an astonishing idea! Halley felt certain enough to make a prediction of what would happen in the future. He decided that this comet would appear in the year 1758. There were 53 years to go before Halley’s prediction could be tested.
In 1758 the comet appeared in the sky. Halley did not see it, for he had died some years before. Ever since then that comet has been called Halley’s comet, in his honor.Edmund Halley figured out the orbit of ______.
| A.some different comets appearing several times |
| B.three different comets appearing three times |
| C.the same comet appearing at different times |
| D.several comets appearing at the same time |
Halley made his discovery______.
| A.by doing experiments |
| B.by means of his own careful observation |
| C.by using the work of other scientists |
| D.by chance |
Halley made a surprising, but correct prediction in the year ______.
| A.1707 | B.1706 | C.1705 | D.1704 |
This passage in general is about ______.
| A.Halley and other scientists |
| B.The orbit of a comet |
| C.Newton and Halley |
| D.Halley and his discovery |
According to the passage, which of the flowing is NOT true ?
| A.Halley figured out the orbit of the comet first. |
| B.Newton figured out the orbit of the comet. |
| C.Newton gave Halley some help. |
| D.Halley died before 1758. |
Every person has their own way of saying things, their own special expressions. Many everyday American expressions are based on colours.
Red is a hot colour. Americans often use it to express heat. They may say they are red hot about something unfair. When they are red hot they are very angry about something. The small hot tasting peppers found in many Mexican foods are called red hots for their colour and their fiery taste. Fast loud music is popular with many people. They may say the music is popular with many people. They may say the music is red hot, especially the kind called Dixieland jazz.
Pink is a cool colour. The traditional blues music in the United States is the opposite of red hot music. Blues is slow, sad and soulful. Duke Ellington and his orchestra recorded a famous song—Mood Indigo—about the deep blue colour, indigo. In the words of the song: “You aren’t blue till you’ve had that Mood Indigo.” Someone who is blue is very sad.
The colour green is natural for trees and grass. But it is an unnatural colour for humans. A person who has a sick feeling in his stomach may say he feels a little green. A passenger on a boat who is feeling very sick from high waves may look very green.
Sometimes a person may be upset because he does not have something as nice as his friend’s, like a fast new car. That person may say he is green with envy. Some people are green with envy because a friend has more dollars of greenbacks. Dollars are called greenbacks because that is the colour of the back side of the paper money.
The colour black is often used in expressions. People describe a day in which everything goes wrong as a black day. The date of a major tragedy is remembered as a black day. A blacklist is illegal now. But at one time, some businesses refused to employ people who were on a blacklist for belonging to unpopular organizations.If you had your wallet stolen while doing some shopping, you may call it _____.
| A.a white day |
| B.a black day |
| C.a red day |
| D.a green day |
Suppose Mr. Brown says he is very happy because his three children are all in the pink, this means all his children are .
| A.lucky and wealthy |
| B.gentle and modest |
| C.fit and healthy |
| D.creative and energetic |
When she got home and found nothing had been done by her husband, Jane was really .
| A.red hot |
| B.green |
| C.blue |
| D.black |
In the following paragraph, the writer might tell the reader something about .
| A.unpopular organizations in the world |
| B.people’s response towards a black day |
| C.the influence of the traditional blues |
| D.more words about a colour, such as brown |
A villa designed to resist earthquakes with “self-healing” cracks in its walls, thanks to nanotechnology applications with self healing polymers(聚合物), is to be built on a Greek mountainside. The villa’s walls will include special particles that turn into a liquid when squeezed under pressure, flow into cracks, and then harden to form a solid material.
The Nano Manufacturing Institute (NMI), based in Leeds University, will play a key role in an EU project to construct the home by December 2010. The project, called “Intelligent Safe and Secure Building”(ISSB) is funded under the EU’s Sixth Framework program. This potentially life saving scheme is led by German building manufacturer Knauf. The villa will be built in Amphilochia, in western Greece, where Knauf currently runs a manufacturing plant. If the experiment is successful, more tremor-resistant(防震)homes could be built in earthquake zones across the globe. NMI chief executive Professor Terry Wilkins said, “What we’re trying to achieve here is very exciting. We’re looking to use polymers in much tougher situations than ever before on a larger scale.” Monitors contained in the villa’s walls will be able to collect vast amounts of data about the building over time.
Wireless sensors and Leeds designed radio frequency identity tags will record any stresses and vibrations, as well as temperature, humidity and gas level. The walls are to be built from novel load-bearing steel frames and high strength gypsum board. Professor Wilkins said, “If there are any problems, the intelligent sensor network will be able to alert residents immediately so they have time to escape.” If whole groups of houses are so constructed, we could use a larger network of sensors to get even more information. “If the house falls down, we have got hand-held devices that can be used over the rubble to pick out where the embedded(嵌入的)sensors are hidden to get some information about how the villa collapsed.” Also, we can get information about anyone who may be around, so it potentially becomes a tool for rescue.The aim of the passage is to .
| A.report a piece of interesting news |
| B.promote tremor-resistant homes |
| C.inform us of the nanotechnology development |
| D.tell us about a tremor resistant home |
The villa can resist earthquakes because .
| A.it will be built on a special place |
| B.the cracks in its walls can be healed by the polymers |
| C.the special particles can make its walls stronger |
| D.the intelligent sensor network can tell people where there is a crack |
If the tremor resistant home falls down, .
| A.no one can be hurt in the earthquake |
| B.the intelligent sensor network will stop working |
| C.rescue work can be done more quickly and accurately |
| D.a warning signal will be given to other residents |
Speaking in his first National Day Rally speech on 15 August, Prime Minister Lee Hsien said Singapore’s education system was set for more reforms in the years ahead, particularly for the primary and secondary education. Read the summary of his thoughts on education below.
For a start, the government is prepared to send an additional 3,000 teachers to Singapore schools, cut the courses of study even further and change the way the mother tongue, especially Chinese, is taught. But, for the changes to be successful, parents need to help.
Singapore has a devoted group of teachers and principles and quite a few of them are outstanding, but the Republic’s schools can be even better. To help the schools make a jump in quality, the government plans that within the next 6 years, it will send 1,000 more teachers to primary schools, 1,400 to secondary schools and 550 more to junior colleges. Each school would decide how to use its extra teachers. Some may want to make classes smaller so students get more individual attentions while others may have new teachers assist more senior teachers, but the overall goal is to give teachers the time and space to come up with ways to bring out the best in their students.
More teachers must not mean more homework, however. In fact, the Prime Minister wants to see the courses cut down so that there is less pressure on the students. Good grades are important but they should not be the only goal students have. PM Lee is convinced that “we must teach less so that our children can learn more.”
Another change will be in the teaching of the mother of tongue so that students can become more fluent. The key is to teach Chinese as a living language not just an academic subject like Latin. Therefore, the focus should be on speaking and reading the language. To do this, there must be an environment outside the classroom that is contributing to strengthening the Chinese lessons.The text is mainly about in Singapore.
| A.the education reform |
| B.adding more teachers |
| C.the mother tongue |
| D.ways of teaching |
The general goal of using extra teachers is to .
| A.make classes smaller |
| B.assist more senior teachers |
| C.teach more |
| D.help teachers improve teaching quality |
PM Lee holds that the students should .
| A.do more homework |
| B.give up higher grades |
| C.study more courses |
| D.be given more time to learn more |
The key to teaching Chinese well is to .
| A.make it academic |
| B.have a creative environment |
| C.give more Chinese lessons |
| D.encourage speaking and reading a lot |
The measures to be carried out will have pressure taken off .
| A.teachers |
| B.students |
| C.parents |
| D.the government |
When Frida Kahlo’s paintings were on show in London, a poet described her paintings as “a ribbon(丝带)around a bomb”. Such comments seem to suggest Kahlo had a big influence on the art world of her time. Sadly, she is actually a much bigger name today than she was during her time.
Born in 1907 in a village near Mexico City, Kahlo suffered from polio(小儿麻痹症)at the age of seven. Her spine(脊柱)became bent as she grew older. Then, in 1925, her back was broken in several places in a school-bus accident. Throughout the rest of her life, the artist had many operations, but nothing was able to cure the terrible pain in her back. However, the accident had an unexpected side effect. While lying in her bed recovering, Kahlo taught herself to paint.
In 1929, she got married to Diego Rivera, another famous Mexican artist. Rivera’s strong influence on Kahlo’s style can be seen in her early works, but her later works from the 1940s, known today as her best works, show less influence from her husband.
Unfortunately, her works did not attract much attention in the 1930s and 1940s, even in her home country. Her first one-woman show in Mexico was not held until 1953. For more than a decade after her death in 1954, Kahlo’s works remained largely unnoticed by the world, but in the 1970s her works began to gain international fame at last.What does the phase “a much bigger name” in Paragraph 1 most probably mean?
| A.A far better artist. |
| B.A far more gifted artist. |
| C.A much stronger person. |
| D.A much more famous person. |
The terrible pain Kahlo suffered was caused by .
| A.polio | B.her bent spine |
| C.back injuries | D.the operations she had |
Kahlo’s style had become increasingly independent since the .
| A.1930s | B.1940s |
| C.1950s | D.1970s |
What is the author’s attitude toward Kahlo?
| A.Devotion. |
| B.Sympathy. |
| C.Worry. |
| D.Encouragement. |
Top lists are lecturing people on everything from “100 places to visit” to “100 books to read”. Aren’t you just tired of being told what to do with your time?
Now you have a list to end all lists!
Take a look at the following two examples from the list of “101 thins not to do”:
Swim with Dolphins?
Swimming with dolphins is one of the world’s most profitable tourist activities. However, every dolphin will welcome having their busy, tiring day interrupted by tourists screaming pushing around them in the water. Worse yet, when dolphins get too near to the boats loaded tourists, they could get caught up in ropes and killed by propellers(螺旋桨).
Here’s a little secret. Dolphins look like smiling at you, but actually they’re just opening mouths.
Go to see the Mona Lisa?
There must be something about the mysterious smile. The 6 million people who visit the lady in the Louvre every year can’t all be wrong, after all. But they can be quite annoying, standing in front of you, holding up their cameras to prevent you from seeing anything. In fact, it is hard for you to see the painting clearly because you have to stay away from it for security reasons. After queuing for hours, many tourists can remain in front of the painting only for 15 seconds most.
If the mysterious lady in the picture knew her fate, she wouldn’t just be smiling, she’d be laughing.
So, still long to see the Mona Lisa? If you want to find out more about the list, read 101 Things NOT to Do Before You Die. Visit www. not2dobeforeidie. co. uk and buy the book at a 20% discount.According to the passage, swimming with dolphins .
| A.is the world’s most popular tourist activity |
| B.gives fun to both tourists and dolphins |
| C.will make tourists busy and tired |
| D.can cause danger to dolphins |
What does the author think about going to see the Mona Lisa?
| A.It is wrong to go and see the mysterious smile. |
| B.It is not as satisfying as expected. |
| C.Fifteen seconds in front of the painting is enough. |
| D.Queuing for hours is worthwhile. |
The list of “101 things not to do” is made most probably because its author .
| A.thinks it boring to do the things suggested by other lists |
| B.believes other lists are not humorous enough |
| C.intends to persuade people to read more lists |
| D.wants to provide a list different from other lists |
What is the main purpose of the passage?
| A.To advertise a book. |
| B.To introduce a website. |
| C.To comment on popular lists. |
| D.To recommend tourist activities. |