What are those in Shandong No.72 Middle School?

The unique Longxu Mountain is located in Yimeng Mountain area of Shandong Province, and some peaks with strange postures can be seen everywhere. The round top is flat and open, and the cliffs around the summit are steep, and the slope under the cliff is steep and gentle. Gu's gathering place is Daigu Town, Mengyin County, Linyi City. In Fiona Fang, which is less than 100 square kilometer, there are more than 30 gu, such as Gu in the south, Gu in the north, Gu in the big and small, Gu in the spring, Gu in the Longxu Valley, etc. The "ancient" geographical form has recently been recognized by geological and geomorphological experts as a new rock modeling landform-"Dai Gu landform". How is it formed? Why should it be named after Dai Gu? The reporter interviewed this geomorphology expert named Gu. Fangshan is unique here. "Fangshan here is so typical!" Zhang Yifeng, a researcher at the Institute of Geographical Sciences and Resources, Chinese Academy of Sciences, told reporters that he had just arrived in Daigu town this spring and was attracted by dozens of Fangshan. This kind of Fangshan is no stranger, and the locals call it "ancient". He began to pay attention to this unique terrain several years ago, but this is the first time he has seen such a huge number and beautiful shapes. The top of the valley is flat and open, and the cliffs around the valley are steep, and the slope under the cliff is from steep to gentle. If you look around, if you are a lion, a leopard or a dragon, you can swim, soar and fly. Below Fangshan is an orchard. At the end of the orchard is a farmer. "Isn't this what I'm looking for?" Zhang Yifeng came to Linyi at that time to do a typical study of mountain development. After seeing the crowds in Daigu, his eyes lit up and he plunged into Daigu's study. "Daigu" returned to Beijing like a karst, and Zhang Yifeng and others formed a research group. The research group went deep into Yimeng mountain area six times in five months, and through on-the-spot investigation, absorbed the geomorphological research results of many scholars and put forward the theory of "Daigu landform". The research group also compared Daigu landform with Danxia landform, Zhangjiajie landform, Zhangshiyan landform and karst landform in China. After the statement of "Daigu landform" was put forward, it received a wide response from the academic circles of geology and geomorphology. The judging committee composed of authoritative experts in geology and geomorphology in China unanimously passed the appraisal and officially named the "ancient landform" as "Daigu landform". "Daigu landform" is a geological structure and rock formed by geological evolution for hundreds of millions of years and belongs to non-renewable resources. Experts pointed out that "Daigu landform" not only has the function of scientific research, but also integrates landscape tourism, eco-tourism, agricultural tourism and cultural tourism, and has the development value of multiple functions. At present, Daigu Town of Mengyin County has formulated a detailed protection and development plan, and cultivated the "Daigu landform" scenic spot group as a characteristic tourist destination. There are trilobite fossils in the stones of the building. The reporter found that many people have trilobite fossils on the stones used to build houses! According to experts, in the CAMBRIAN era 500-600 million years ago, Yimeng Mountain area was still immersed in the sea of Wang Yang, and there were protruding mountains on the seabed. External forces such as wind and rain and river swing are eroding the mountain all the time. After thousands of years, it has gradually become a plain. When the plain meets the crustal uplift again, it is lifted again to form Pingdingshan, thus entering a new round of erosion cycle. Gully is the residue of a new erosion cycle, and flat roof is the residue of Pingdingshan land. The height of the peak can represent the uplift height of the ancient plain, which contains important information about the crustal uplift movement. There are more than 30 alpine waterfalls in Daigu area. Among them, the Lower Cambrian stratum 1 15.6 square kilometers is widely distributed, fully exposed, thick and rich in water, which is rare in North China. Local residents have found trilobite fossils in rocks on the mountain many times. The proposal that Yimeng 72 was named "Daigu landform" and "Daigu landform" and the humanistic feelings of Fangshan in the old revolutionary area made Fangshan, the most common mountain around Yimeng Mountain people, a "star". But for the local people in Dai Gu, Gu is still the place where they grew up. On August 26th, the reporter came to Daigu Town to visit the life of Gu villagers. The last family visited "seven springs, nine roofs and eight castles, which are our lotus flowers." Lotus is steep and abruptly inserted into the clouds; The dome is relatively flat, and 53 families once settled here and planted land and trees. Since 2004, 52 families have moved out of the lotus pond. Only 59-year-old Liu Xiangjing, his wife and 80-year-old father Liu Fakun still live in the lotus pond. When the reporter rushed to Liu Xiangjing's house, eight dogs, big and small, barked at the gates of his five big tile houses, and dozens of chickens pecked rice freely in the yard. Not far from the house is a sheepfold with more than 40 sheep. With the "neighbors" moving away, the Liu Xiangjing family of three raised eight dogs to "try to be brave". Liu Xiangjing called us strangers to sit down in the room and turn on the electric fan and TV. This color TV is very clear and can receive dozens of channels. Liu Xiangjing said that his three daughters are married and his 20-year-old son is a driver in Linyi. He built a new house for his son. Why don't the old couple and their father want to move down the mountain? "The land is on the land, and I am old, unlike young people who can go up and down and run back." It is convenient to live in Gu Xia. In order to facilitate the life of the ancient residents and protect this unique landform, the government of Daigu Town gradually relocated the ancient residents. Liu, 38, from Zhujiapo village, moved from Lianhua Valley in 2004. The government helped him build four big tile houses, and he opened a canteen himself. The reporter saw that his wife Hu Mei was in charge of the business in the store. August 24th is his eldest daughter's birthday, and they specially made a big cake for her. Hu Mei laughed and teased: "This can't be bought online." Liu told reporters that the reason why young people are willing to move down from ancient times is mainly for the convenience of their children to go to school. However, Liu still often misses his life in Gu. "I like living in Gu very much. There are cool mountain springs on the mountain, butterflies and bees are dancing and flowers are overflowing. It is simply a fairyland. " Recalling the life in Pangang, Liu was filled with emotion. "When I was 5 years old, I went to Pangang for the first time. When I was 8 years old, it took me half an hour to go to school from Pangang. I usually make my own clothes and occasionally go to the market to buy necessities such as oil, salt, sauce and vinegar ... "Holding my chubby little daughter who is less than one year old, Liu kept repeating to reporters," It's good to move down, but everyone often gets together to talk about the old days. " Menglianggu Battle Memorial Site is the place where the seventy-four divisions of Shanghai Ghost howled and Meng Lianggu fled. It is located at the junction of Mengyin County and yinan county and belongs to Mengshan Mountain System. The main peak is 575.2 meters above sea level and covers an area of 1.5 square kilometers. According to legend, Meng Liang, the general of Yang Jiajiang in the Song Dynasty, was stationed here, hence the name. In May 1947, under the command of Chen Yi and Su Yu, the East China Field Army annihilated the elite troops of the Kuomintang, reorganized the 74th Division, moved in, and killed Zhang He, the division commander, which became famous at home and abroad. Meng Lianggu Battle Site is a provincial key cultural relics protection unit. Meng Lianggu's main peak, Daguding, looks like a millstone, magnificent and surrounded by Zhou Songbai. The eastern foot of the summit is a steep cliff, and the summit is surrounded by iron bars. Built of white marble, the Meng Lianggu Campaign Monument stands in the center of the peak, with the inscription of Marshal Chen Yi praising the scenery of Yimeng and General Su Yu's "Hero Meng Lianggu". Marshal Chen Yi once wrote a poem entitled "The Battle of Meng Lianggu": "Ghosts and gods wail in Meng Lianggu, and the 74th Division has nowhere to escape. The signals are scattered, the stars are confused, and lights are everywhere. The knife rushed to the top of the mountain, and blood and rain floated in, wetting the shirt. I'm glad to see that thieves are all elites and our army is all heroes. Our troops are all heroes, so they can't escape the reactionary trump card. The violent Chao Jiang died, and the desolate American emperor complained bitterly. The war situation in East China has changed, and the military aircraft in northern Shaanxi transported Qita. I like the rain to make the wheat mature and successfully approach Letaotao. "