第二節(jié)閱讀理解梯度進階訓練

　　（2）

　　More than one and a half billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like David IrvineHalliday.

　　In the late 1990s, the Canadian professor was working in Nepal when his return flight was cancelled. A delay gave him time to take a fourteenday hiking trip in the Himalayas.

　　As he tells it, 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—and not just at school, but also at home.

　　Many families use kerosene oil 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Halliday says many people spend well over one hundred dollars a year on the fuel.

　　When he returned to Canada, he began researching ways to provide safe, clean and affordable lighting. He began experimenting with lightemitting diodes, LEDs, at his laboratory at the University of Calgary in Alberta. 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 and last much longer.

　　Professor IrvineHalliday used a onewatt bright white LED made in Japan. He found it on the Internet and connected it to a bicyclepowered generator. He remembers thinking it was so bright, a child could read by the light of a single diode.

　　In two thousand, after much research and many experiments, he returned to Nepal to put the systems into homes. His Light Up the World Foundation has now equipped the homes of twentyfive thousand people in fiftyone countries.

　　Now his aim is to develop a lowercost lighting system. In January, David IrvineHalliday is leaving the University of Calgary. He has also decided to give up leadership in the Light Up the World Foundation to start a company in India.

　　()1. There are many problems with kerosene oil lamps EXCEPT .

　　A. producing only a small amount of light

　　B. being dangerous to breathe

　　C. being very expensive

　　D. causing many injuries and deaths each year

　　()2. Why did Professor IrvineHalliday begin to experiment on LEDs?

　　A. Because he is a professor of renewable energy.

　　B. Because traditional lighting is dangerous.

　　C. Because he wishes to provide safe, clean and affordable lighting for the poor.

　　D. Because he was delayed by the cancelled return flight.

　　()3. Compared with traditional bulbs, LEDs .

　　A. use much more electricity

　　B. last much longer

　　C. cost much more money

　　D. provide more colorful lighting

　　()4. We can infer from the passage that Professor IrvineHalliday .

　　A. actually invented LEDs

　　B. visits the poor in the Himalayas every year

　　C. works in the University of Calgary

　　D. is still working on developing a lowercost lighting system

　　()5. What is the main idea of this passage?

　　A. The invention of LEDs.

　　B. Bringing light to homes in poor countries.

　　C. What Professor IrvineHalliday did for the poor.

　　D. Living conditions in the Himalayas.

　　Kill two birds with one stone.

　　一箭雙雕。

　　詳解詳析

　　這篇文章介紹了IrvineHalliday教授研制LED節(jié)能燈的起因及過程，還介紹了這位教授下一步的研究目標。

　　1. C細節(jié)理解題。文章第三段內(nèi)容介紹了煤油燈的危害，文章第四段第一句Kerosene costs less than other forms of lighting，… 可知不是很昂貴。故選C。

　　2. C推理判斷題。結(jié)合文章第四段和第五段的開頭可知IrvineHalliday教授研制該LED燈的主要目的。

　　3. B細節(jié)理解題。根據(jù)文章第五段最后一句中的and last much longer可知該燈壽命較長。

　　4. D推理判斷題。根據(jù)文章最后一段第一句Now his aim is to develop a lowercost lighting system.可以推斷出該教授正在研究的內(nèi)容。

　　5. B主旨大意題。文章介紹了IrvineHalliday在看到貧窮地區(qū)使用煤油燈時萌發(fā)了開發(fā)節(jié)能的LED燈的過程，故本文主題為選項B。

　　第二節(jié)閱讀理解梯度進階訓練

　　（2）

　　More than one and a half billion people around the world live without electricity. Finding better ways to bring light to the poor is the goal of researchers like David IrvineHalliday.

　　In the late 1990s, the Canadian professor was working in Nepal when his return flight was cancelled. A delay gave him time to take a fourteenday hiking trip in the Himalayas.

　　As he tells it, 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—and not just at school, but also at home.

　　Many families use kerosene oil 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Halliday says many people spend well over one hundred dollars a year on the fuel.

　　When he returned to Canada, he began researching ways to provide safe, clean and affordable lighting. He began experimenting with lightemitting diodes, LEDs, at his laboratory at the University of Calgary in Alberta. 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 and last much longer.

　　Professor IrvineHalliday used a onewatt bright white LED made in Japan. He found it on the Internet and connected it to a bicyclepowered generator. He remembers thinking it was so bright, a child could read by the light of a single diode.

　　In two thousand, after much research and many experiments, he returned to Nepal to put the systems into homes. His Light Up the World Foundation has now equipped the homes of twentyfive thousand people in fiftyone countries.

　　Now his aim is to develop a lowercost lighting system. In January, David IrvineHalliday is leaving the University of Calgary. He has also decided to give up leadership in the Light Up the World Foundation to start a company in India.

　　()1. There are many problems with kerosene oil lamps EXCEPT .

　　A. producing only a small amount of light

　　B. being dangerous to breathe

　　C. being very expensive

　　D. causing many injuries and deaths each year

　　()2. Why did Professor IrvineHalliday begin to experiment on LEDs?

　　A. Because he is a professor of renewable energy.

　　B. Because traditional lighting is dangerous.

　　C. Because he wishes to provide safe, clean and affordable lighting for the poor.

　　D. Because he was delayed by the cancelled return flight.

　　()3. Compared with traditional bulbs, LEDs .

　　A. use much more electricity

　　B. last much longer

　　C. cost much more money

　　D. provide more colorful lighting

　　()4. We can infer from the passage that Professor IrvineHalliday .

　　A. actually invented LEDs

　　B. visits the poor in the Himalayas every year

　　C. works in the University of Calgary

　　D. is still working on developing a lowercost lighting system

　　()5. What is the main idea of this passage?

　　A. The invention of LEDs.

　　B. Bringing light to homes in poor countries.

　　C. What Professor IrvineHalliday did for the poor.

　　D. Living conditions in the Himalayas.

　　Kill two birds with one stone.

　　一箭雙雕。

　　詳解詳析

　　這篇文章介紹了IrvineHalliday教授研制LED節(jié)能燈的起因及過程，還介紹了這位教授下一步的研究目標。

　　1. C細節(jié)理解題。文章第三段內(nèi)容介紹了煤油燈的危害，文章第四段第一句Kerosene costs less than other forms of lighting，… 可知不是很昂貴。故選C。

　　2. C推理判斷題。結(jié)合文章第四段和第五段的開頭可知IrvineHalliday教授研制該LED燈的主要目的。

　　3. B細節(jié)理解題。根據(jù)文章第五段最后一句中的and last much longer可知該燈壽命較長。

　　4. D推理判斷題。根據(jù)文章最后一段第一句Now his aim is to develop a lowercost lighting system.可以推斷出該教授正在研究的內(nèi)容。

　　5. B主旨大意題。文章介紹了IrvineHalliday在看到貧窮地區(qū)使用煤油燈時萌發(fā)了開發(fā)節(jié)能的LED燈的過程，故本文主題為選項B。