Title ĐÁP ÁN ĐỀ DUYÊN HẢI ĐIỆN BIÊN LỚP 11 2024.docx ✅

2 the pitch to cool and settle – for three years. He then turned the funnel upside down and cut the top off it. Since then, the pitch has slowly dropped out of the funnel. How slowly? Well, the first drop took eight years to fall. (Q4) It took another forty years for another five drops to fall. Today it's been almost 90 years since the experiment started. Only nine drops have fallen from the funnel. The last drop fell in April 2014 and the next one is expected to fall in the 2020s. The experiment has a tragic story associated with it. Professor Parnell died without seeing a pitch drop. His replacement, Professor John Mainstone, became responsible for the pitch drop experiment from 1961. He held the job for 52 years, and missed seeing the drop fall three times – by a day in 1977, by just five minutes in 1988 and finally in 2000, when the webcam that was recording the experiment suffered a power outage for 20 minutes, during which time the pitch dropped. (Q5) The pitch drop experiment is something we can all participate in now. There's a live web stream that allows anyone to watch the glass funnel and wait for the fateful moment. A similar experiment to the Queensland pitch drop was set up in Dublin, and the video of the moment the pitch actually dropped went viral on the internet. It's interesting to see how a very slow event can spread news so quickly. Part 2. For questions 6 – 10, listen to a radio program about the importance of morning light to our health and answer the questions. Write NO MORE THAN THREE WORDS taken from the recording for each answer. Write your answers in the corresponding numbered boxes provided. (10 pts) 6. What kind of news did the man see that made him decide to start his business? Footage (of pollution) 7. What is the name of the industry the man is in? Air farm 8. How much air can you buy for $115? 580 ml 9. Where does the entrepreneur live now? Hong Kong 10. What does the man sometimes have to go to the bottom of to get air? A valley TRANSCRIPT An English entrepreneur has started a booming business from selling bottled, British countryside air to Chinese consumers. Leo De Watts, 27, struck upon the idea of selling air to China after seeing news footage of pollution and smog in Chinese cities. He guessed there was a market for cleaner air. De Watts launched his company last year in the somewhat imaginatively named industry of "air farming". His team "harvests" air in bottles from various locations across Britain and ships it to China. Even though the air is cheap to collect, De Watts puts a hefty price on his products. Chinese lovers of British air have to pay around $115 for a 580 ml bottle of the fresh stuff. De Watts was born in the British countryside and said he appreciates the quality of the air in rural Britain. He now lives in Hong Kong where he sells his fresh air at local street markets. A lot of his merchandise is sold