More than 1.5 billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like Professor Irvine. In the late 1990s, he was working in Nepal when his return flight was canceled. A delay gave him time to take a fourteen-day hiking trip in the Himalayas.
One day he looked in the window of a school and noticed how dark it was. This is a common problem for millions of children around the world. Many families use kerosene oil (煤油) lamps. There are many problems with these lamps. They produce only a small amount of light. They are dangerous to breathe. And they are a big fire danger, causing many injuries and deaths each year. Kerosene costs less than other forms of lighting, but it is still costly in poor countries. Professor Irvine says many people spend over 100 dollars a year on the fuel.
When he returned to Canada, he began researching ways to provide safe and clean lighting. He began experimenting with light-emitting diodes (发光二极管), LEDs, at his lab. As a professor of renewable energy, he already knew about the technology. Light-emitting diodes are small glass lamps that use much less electricity than traditional bulbs (灯泡) and last much longer. He used a one-watt bright white LED made in Japan. He found it on the Internet and connected it to a bicycle-powered generator (发电机). He remembers thinking it was so bright that a child could read by the light of a single diode.
In 2000, after much research and many experiments, he returned to Nepal to put the systems into homes. Now the homes of 25,000 people in 51 countries have been equipped with it. “The one-time cost of our system which basically lives forever, as well as the solar panel — is less than one hundred dollars. So, one year of kerosene would pay for a solid-state lighting system,” he said. Now his aim is to develop a lower-cost lighting system. In January, Irvine is leaving the University of Calgary. He has also decided to start his own company in India.We can learn from the second paragraph that kerosene oil lamps ______.
| A．cost more than other forms of lighting |
| B．have damaged children’s eyesight |
| C．have wasted only a little fuel |
| D．have a lot of disadvantages |
Irvine connected a white LED to a bicycle-powered generator to prove ______.
| A．whether it can work without electricity |
| B．whether it can work well with less electricity |
| C．whether it can last longer than a generator |
| D．whether it is brighter than a traditional bulb |
We can learn from the text that Irvine ______.
| A．likes India rather than Nepal |
| B．is good at making new kinds of bulbs |
| C．is giving up his job in the university |
| D．is to earn much money from his company |
One is not born able to speak a language．One is born able to make a noise．I have heard babies cry in America and in China．I can't tell any difference．But when I hear someone from America speak English and hear someone speak Chinese, I can tell you there are a lot of differences．
I believe a common problem with Chinese students’ learning English is that they were not taught to think in English．They have an idea spoken in English and want to translate the idea into Chinese, Then they think in Chinese of the proper reply and translate it into English．After a long period of speaking the language, one begins to think in the foreign language naturally．You will learn faster if you begin to think in English at the very beginning of your study．Many students ask me: What can I do to improve my spoken English?
My reply is: The more English you speak, the better English you will speak．There are many things you can do to improve your spoken English．Of course, the best way is to live where English is spoken as a language of the country．The cries of American and Chinese babies are ________．
| A．different | B．the same | C．not like each other | D．like each other |
The underlined sentence ( in Paragraph 2 ) means that ________．
| A．some teachers didn't teach students to think in English |
| B．teachers never gave the students the way of learning English |
C．students didn't remem ber the way teachers taught them |
| D．teachers didn't want their students to think in English |
The underlined word “they” ( in Paragraph 2 ) refers to “________”．
| A．Chinese students | B．English students |
| C．Chinese teachers | D．English teachers |
According to the article, which
of the following is TRUE?
| A．You must think in English all the time． |
| B．If you translate a sentence into Chinese, you should think about the meaning of the sentence in Chinese carefully first． |
| C．After speaking English for a long time, you may probably think in English naturally． |
| D．The best way of learning English is to live in America． |
Looking back on my childhood, I am quite sure that naturalists are born and not made. Although we were all brought up in the same way, my brothers and sisters soon left their pressed flowers and insects completely forever. Unlike them, I had no ear for music and
languages. I was not an early reader and I could not do mental mathematics.
Before World War I, we spent our summer holidays in Hungary. I have only the dim memory of the house we lived in, of my room and of my toys. Nor do I remember clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a clear memory of the dogs, the farm animals, the local birds, and above all, the insects
I am a naturalist, not a scientist. I have a strong love of the natural world and my interest had led me into varied investigations. I love discussing my favorite subjects and enjoy burning the midnight oil reading about other people’s discoveries. Then something happens that brings these discoveries together in my mind. Suddenly you imagine you see the answer to the question, because it all seems to fit together. This has resulted in my publishing 300 papers and books, which some might honor with the title of scientific research.
But interest, a good eye, a good memory and enjoyment of the animal and plant world do not make a scientist: one of the outstanding and necessary qualities required is self-discipline(自我修养), a quality I lack. A scientist, up to point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.The first paragraph tells us the author __________.
| A．was interested in flowers and insects in his childhood |
| B．lost his hearing when he was a child |
| C．didn’t like his brothers and sisters |
| D．was born to a naturalist’s family |
The author can’t remember his relatives clearly because __________.
| A．he didn’t live very long with them |
| B．the family was extremely large |
| C．he was too young when he lived with them |
| D．he paid more attention to nature |
The author says that he is a naturalist rather than a scientist probably because he thinks he __________.
| A．has a great deal of trouble doing mental mathematics |
| B．lacks some of the qualities required of s scientist |
| C．just reads about other people’s discoveries |
| D．comes up with solutions in a most natural way |
At 50 I was the first woman to travel alone to the North Pole. But what should I do to celebrate my 60th birthday? What else, but a journey at the opposite end of the world, Antarctica. I began my almost 400-mile jour
ney on November 1st, 1997,a few days before my birthday. I walked and skied alone. My dog team were not with me to pull my sled. Another journey of challenge and danger was about to begin.
The first days the weather was very good. The wind was icy but not very strong and there was bright sunshine 24 hours a day. But changes were just around the corner. On the third day I was struggling through stormy weather and during the nest week the wind grew stronger and I found myself spending a whole day in my tent.
I had traveled only two hours one day when the winds increased so much that I had to put my tent up before the winds became too strong. Within a few minutes the winds increased to a howling storm that threatened to blow me and the tent away, but none of that happened.from the text we know the writer was born on ___.
| A．1st November 1937 | B．12th November 1937 |
| C．22nd November 1947 | D．1st November 1957 |
Another journey of challenge and danger
was about to begin. “ Another journey” here means ___.
| A．the travel to the North Pole. | B．another journey to Antarctica. |
| C．400- mile journey on November 1st 1997. | D．a new trip that she was planning. |
After reading the short passage, we can guess that ___.
| A．the trip to the North Pole must be the same hard as that to the South Pole. |
| B．The trip to the Antarctica may be more dangerous than that to the Arctic |
C．There was no danger though the trip to the South Pole w as hard. |
| D．During the trip to the Antarctica, the weather, most of the time, was not so bad. |
Do you think which kind of people the writer is?
| A．mean | B．generous | C．brave | D．handsome |
Several different stories are told about the origin（由来） of Saint Valentine's Day（情人节）. One legend(传奇) d
ates as far back as the clays of the Roman Empire, according to the story, Claudius, the Emperor of Rome, wanted to increase the size of the army. He knew that it would be easier to get young man who were not married to join. Therefore he made a rule that no young man could marry until he had served a certain number of years in the army.
A priest（牧师） named Valentine broke the rule and secretly married a great many young people. Finally, Claudius found out about Valentine and put the priest in prison, where he remained until his death on February 14.
After his death, Valentine was made a saint, and the day of his death was named Saint Valentine's Day. It became the custom for lovers to send each other message on this day. Now Saint Valentine's Day is a time for people to send one another greeting of many kinds.
February 14, Valentine's Day, is a sweethearts' day, on which people in love with each other express their tender emotions. People sometimes put their love message in a heart-shaped box of chocolates, or a bunch of flowers tied with red ribbons. Words of letters may be written on the flower covered card, or something else. Whatever the form may be, the message is almost the same "will you be my Valentine?"Valentine was put in prison because ________.
| A．he secretly got married |
| B．he didn't serve in the army |
| C．he married many young people secretly |
| D．he broke the laws |
According to the rule ________.
| A．no young men could get married unless they were old enough |
| B．young men could marry if they served in the army for several years |
| C．no one could get married without the emperor's permission |
| D．young could marry only in the army |
This passage mainly tells us about _________.
| A．how Valentine died |
| B．the Emperor of Rome |
| C．how Valentine's Day is celebrated |
| D．the origin of Valentine's Day |
February 14 is chosen Valentine's Day because __________.
| A．lovers express their tender emotions on this day |
| B．people want to remember Valentine |
| C．people send one another greetings of many kinds on this day |
| D．people want to fix a date for lovers to express their emotions |
The Touchstone
When the great library of Alexandria burned, the story goes, one book was saved. But it was not a valuable book, and so a poor man, who could read little, bought it for very little money.
The book wasn’t very interesting, but between its pages there was something very interesting indeed. It was a thin strip of vellum on which was written the secret of the “Touchstone”! The touchstone was a small pebble that could turn any common metal into pure gold.
The writing explained that it was lying among thousands and thousands of other pebbles that looked exactly like it. But the secret was this: The real stone would feel warm, while ordinary pebbles are cold.
So the man sold his few belongings, bought some simple supplies, camped on the seashore, and began testing pebbles. He knew that if he picked up ordinary pebbles and threw them down again because they were cold, he might pick up the same pebble hundreds of times. So, when he felt one that was cold, he threw it into the sea. He spent a whole day doing this but none of them was the touchstone. Yet he went on and on this way. Pick up a pebble. Cold, throw it into the sea. Pick up another. Throw it into the sea. Pick up another. Throw it into the sea. The days continued over a long period of time.
One day, however, about mid-afternoon, he picked up a pebble and it was warm. He threw it into the sea before he realized what he had done. He had formed such a strong habit of throwing each pebble into the sea that when the one he wanted came along he still threw it away.
So it is with opportunity. Unless we are careful, it’s easy to fail to recognize an opportunity when it is in hand and it’s just as easy to throw it away.The man bought the book because ______.
| A．he wanted to read it | B．it was very interesting |
| C．there was a secret in the book | D．he wanted to find the touchstone |
We can learn from the passage that the touchstone is ______.
| A．pure | B．cold | C．magic | D．big |
What does the author want to tell us in the passage?
| A．We should offer opportunities in our life. |
| B．We should seek for opportunities in the world. |
| C．We may seize opportunities when we are watchful. |
| D．We may discover opportunities when forming habits. |
粤公网安备 44130202000953号