Reading of Chinese expository texts in the third grade of junior high school

Collection of reading questions for junior high school Chinese expository texts [1] 2008-06-21 21:52 1. (Nantong City, 2006) Read the following text. Complete questions 7-1 O. (1 1 points) ① Traditional petrochemical energy is decreasing day by day, and at the same time, there are still 2 billion people in the world who do not have normal energy supply. At this time, the whole world has turned its attention to renewable energy, hoping that renewable energy can change human energy structure and maintain long-term sustainable development. Solar energy is one of the current renewable energy sources that can not only obtain energy, but also reduce the emission of harmful gases and harmful substances such as carbon dioxide. More and more countries are beginning to implement the "Sunshine Plan" to develop solar energy. Such as the "Photovoltaic Building Plan" in the United States, the "Million Rooftop Photovoltaic Plan" in Europe, the "Asahi Plan" in Japan, and the "Bright Project" that our country has launched. ②The energy of solar energy reaching the earth every second reaches 1.7 × 1 O14 kilowatts. If we take the earth's surface as O. 1% of solar energy is converted into electrical energy, with a conversion rate of 5%. The annual power generation is expected to reach 7.4×1 O13 kilowatt hours, which is equivalent to 40 times the current world energy consumption. Therefore, solar energy resources are very abundant, inexhaustible, and important energy that humans can freely utilize. ③Data shows that most areas of our country are rich in solar energy resources and have huge potential for solar energy resource development. More than two-thirds of the country's total area has annual sunshine hours of more than 2,000 hours, and its theoretical reserves reach 1.7 trillion tons of standard coal per year. The average annual daily radiation in most areas is more than 4 kilowatt hours per square meter, and the solar radiation received by the land area every year is equivalent to the combined power generation of tens of thousands of Three Gorges Projects. ④ Solar energy development costs are low and has broad prospects. In the past ten years, my country's solar energy utilization industry has developed rapidly. In particular, solar water heaters have initially formed a relatively complete industrial system. It is predicted that in the next 15 years, solar water heaters will grow at a rate of about 20%, and the number of households using solar water heaters in urban and rural households across the country will reach 25% of the total. With the development of research on solar energy utilization methods, solar air conditioners have become more mature products and are expected to enter people's lives this year. A series of solar products such as solar street lights, solar mobile phones, and solar flushless toilets are in the development and application stage. Now our country has become a net importer of oil and has a huge demand for solar power generation. At present, our country has formulated relevant policies to encourage the use of solar energy as an alternative energy source. I believe that in the near future, "sunshine everywhere and electricity everywhere" will become a reality of our lives. 7． Compared with traditional petrochemical energy, what are the obvious advantages of solar energy resources? (3 points) 8. The author lists a large amount of data in paragraphs ② and ③. What is the purpose? (2 points) 9. Linguistic accuracy is one of the most important features of expository writing. Please choose one of the two dotted words in the article and write its expression. (3 points) 10. The 29th Olympic Games, with the concept of "Environmental Olympics and Science and Technology Olympics", will be held in Beijing, the capital of our country, in 2008. To this end, a certain school plans to carry out the theme activity "I offer suggestions for the Olympics". If you are a student of this school, please combine your reading understanding of this article to make a reasonable suggestion to the organizing committee of this Olympic Games, and write the main content and reasons of your suggestion below. (3 points) 2. (2006 Lianyungang) Read the text below and complete questions 17-20. (12 points) If you can watch the sea glow at night, it is quite magnificent. It looks like thousands of stars, like a patch of milky light, and even more like colorful fireworks. People call this phenomenon "sea fire". Who caused this fascinating scene? Whose masterpiece is it? There is a kind of sea luminescence that appears in the spray foam around and at the stern of sailing ships. This is mainly caused by luminescent plankton with very small particles. Most of them are rose red in color, and they usually glow slightly with the help of a fatty substance in their bodies. The characteristic of luminescence is that it consists of countless white, light green or light red flashes. But they are usually only noticeable when there are mechanical disturbances in the sea surface or when they are chemically bombarded. When sea waves push them toward the gravelly shore, they are even more triggered to glow. The light emitted is like a bunch of splashing sparks, falling like "fire rain", one after another. This kind of sea glow is called spark-type sea glow. There is also a type of sea glow caused by marine luminescent bacteria. Their luminous intensity is weak, and their characteristic is that no matter what the sea conditions are, and no matter whether there is any external disturbance, as long as there are a large number of these luminous bacteria, a milky white glow will appear on the sea surface. Such bacteria are mostly found in estuaries, harbors, and intersections of warm and cold currents, especially in polluted places where sewers enter the sea. This type of sea luminescence is called diffuse sea luminescence. Another type of sea luminescence is caused by larger luminous objects in the ocean, such as jellyfish, sponges, moth worms, ring worms, and scale clams. Jellyfish have special light-emitting organs on their bodies, which emit a large flash of light when stimulated. Some fish can secrete a special substance that reacts with oxygen to emit light. This kind of luminescence usually appears in isolation. It is more eye-catching under the influence of mechanical and chemical effects. The characteristics of the sea light they emit are one bright and one dark, repeated cycle, like a flash. This kind of sea luminescence is called flash. Shape sea shines. Hai Guangfa is not only colorful and beautiful, but most importantly, it has a close relationship with production and construction.

Sea areas with strong sea luminescence can reflect the dark seascape. Therefore, on a moonless night, when a ship encounters sea luminescence, it can cause the captain to have an illusion, leading to sea damage accidents and affecting the safe navigation of the ship. Correctly grasping the sea luminescence can predict the weather. Fishermen in my country's Liaoning and Hebei areas have summarized the folk proverb "Fire is seen in the sea and wind and rain are present" after years of observation. The sea light that occurs when fish swim exposes the hiding places of fish, so experienced fishermen use it to catch fish at night. (Selected from "Chinese Newspaper") 17. Please briefly summarize the causes of the colorful, beautiful and attractive "sea glow".

(3 points) 18. What are the characteristics of different types of sea luminescence? (3 points) 19. Why does "spark-shaped sea glow" appear "in the spray foam around and at the stern of a sailing ship"? (3 points) 20. What is the close relationship between Haifa and production and construction? (3 points) Do you want an answer?