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1、Unit 4 Discovering Useful Structures & Listening and Talking1、Fishy Weather Conditions Laj amanu, Australia, is a dry little town, sitting right on the edge of the Tanami desert. Can you imagine how surprised people were when live fish rained down on them from a dark gray cloud. It happens that ther
2、e are similar cases in England and Honduras. How do clouds make fish? The simple answer is that they dont. There is a particular weather phenomenon(现象) called a waterspout. A waterspout is just like a tornado, only it forms above oceans, lakes, or rivers. Like a tornado, a waterspout moves in a circ
3、le at high speeds. When it moves above the water, it tends to carry the fish with it, as well as frogs or other small plants or animals. Scientists couldnt work it out at first. To make matters stranger still, the fish in Honduras were very much alive when they rained down to the ground, but they we
4、re all blind. In England and Australia, it rained fish and snakes, and none were blind. It was difficult to puzzle out, but the blind fish gave them a place to start. Scientists knew that some fish that lived in deep, underground caves with no light sources often lost their eyesight. So when blind f
5、ish rained down on Honduras, scientists began to connect some dots. Clearly, these particular fish were pulled from an underground water source by force. It has rained fish on every continent, and each time, people have tried in various ways to explain this strange phenomenon. Historically, villager
6、s thought the fishes from the heavens might be answers to prayers for food. Others suggested that floods overran river banks and oceans, leaving the fish on the city streets. No scientist had actually seen the rain as it occurred, only the fish left on the ground. But in 1990, a National Geographic
7、team happened to be in Honduras when the Rain of Fishes began. They recorded what was happening and made history by finally proving that the fish really did fall from the sky. This huge breakthrough wasnt just a spot of good luck. It changed thousands of years of myths and legends into true stories
8、and provided scientific explanations for how fish came to live in deep caves. It explained ancient cave paintings and shed new light on how species have spread over time. It turned out to be a lot more than just a little fishy weather.1.According to the passage, a waterspout _.A.can make animals bli
9、ndB.is difficult to catch on filmC.can carry items with itD.is a dangerous sea creature2.The blind fish made the scientists start to think that _.A.raining fish was a warning of natural disastersB.animals changed to match their environmentsC.the weather system differed from place to placeD.the water
10、spout theory seemed more possible3.From Paras. 5 and 6, we can learn _.A.how species in the area changed over timeB.the importance of finding the truth behind the eventC.that the discovery cleared up many different scientific theoriesD.how the understanding of waterspouts affected other areas of sci
11、ence4.The author writes the passage to _.A.describe the magic phenomenonB.explain what caused the fishy weatherC.persuade people to protect the environmentD.encourage people to do scientific research2、 The Palace Museum, known as the Forbidden City, was the imperial (帝王的) palace of the Ming and Qing
12、 Dynasties. In the early 15th century, large-size construction caused 100,000 common people to lead a hard life. The construction took 14 years and was finished in 1420. In the following year, the capital of Ming Dynasty was moved from Nanjing to Beijing. Twenty-four emperors of the Ming and the Qin
13、g Dynasties ruled from the Forbidden City. The last dynasty fell in 1911, but Emperor Puyi still lived in the inner court. It was not until 1925 that the complex buildings were changed into a museum. Since then, the Palace has been opened to the public. The Palace Museum is rectangular(长方形的) in shap
14、e, about 960 meters long from north to south and 750 meters wide from west to east. There is a 10-meter-high wall, encircled by a 52-meter-wide moat (护城河) . In the Ming Dynasty, the wood needed for the building was brought mostly from Sichuan and Hunan Province, while in the Qing Dynasty, it was cut
15、 from the northeast of China. Most of the stones were mined from the suburban (郊外的) district of Fangshan and other districts. Construction of the Forbidden City brought hardship to the laboring people. The palace is the largest piece of ancient Chinese architecture still standing. Some of the buildi
16、ngs were damaged by lightning and rebuilt in the Ming and Qing Dynasties. The palace has been expanded several times, but the original design was kept. After liberation, some costly renovations (翻新) were done and the Palace Museum is listed as one of the important historical sites under special preservation by the Chinese government.1.What is the main idea of Paragraph 1?
