Tiêu đề ĐỀ THI HSG ANH 8 THANH CHƯƠNG - NGHỆ AN 2022-2023.pdf ✅

4 More than two hundred years ago, the term “ enviromental polution” was quite strange to people. They lived healthily, drank (1) ____________ water, and breathed fresh air. In those days, industry was not well- developed. Nowadays, the (2) ____________ is quite different. The world today is faced with many (3) ____________ threats. The most dangerous threat of all is war, and after the threat of war is (4) ____________. People all over the world are worried about things that are happening to the environment. Actually, it is man that is (5) ____________ the surroundings with many kinds of wastes from the devices that make human lives more comfortable and convenient. Everybody knows that cars emit dangerous gases that cause poisonous (6) ____________ and cancer, but no one wants to travel on foot or by bicycles. Manufactures know that (7) ____________ from factories make water and (8) ____________ polluted, but they do not want to spend a lot of their money on (9) ____________ the wastes safely. (10) ____________ rubbish is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about polution? 1. A. fresh B. pure C. clean D. boiled 2. A. situation B. case C. circumstance D. occasion 3. A. chief B. significant C. major D. main 4. A. contamination B. polution C. dirtying D. poisoning 5. A. poisoning B. destroying C. dirtying D. contaminating 6. A. steam B. vapor C. air D. moisture 7. A. wastes B. junks C. garbage D. litters 8. A. land B. ground C. soil D. earth 9. A. solving B. dealing C. processing D. treating 10. A. throwing B. scattering C. distributing D. pouring Part 2. (20 points) Fill ONE suitable word into each numbered blank. Write your answers in ‘Your answers’ part. The search (1) ____________ alternative sources of energy has led in various directions. Many communities are burning garbage (2) ____________ other biological waste products to produce electricity. Converting waste products to gases, oil (3) ____________ also an efficient way to dispose of wastes. Experimental work is being (4) ____________ to derive synthetic fuels from coal, oil, shale and coal tars. However, that process (5) ____________ been proved to be expensive. Other experiments that are underway to harness power with giant windmills are also (6) ____________ tested. Some experts expect utility companies to receive hydroelectric power (7) ____________ from streams and rivers. Fifty years ago, hydroelectric power provided one third of the electricity (8) ____________ in the United States, but today it supplies only four percent. The oceans are other (9) ____________ sources of energy. Scientists are studying ways to convert the energy of ocean currents, tides and waves (10)