文章大意Shuit 公司在地中海的 Stavos 岛提炼淡水。讲了之前这个岛的淡水提供方 法。该公司决定利用地热，一开始反对，后来克服苦难消除不利影响，项目 很成功。
Desalination is a process that extracts minerals from saline water. More generally, desalination refers to the removal of salts and minerals from a target substance, as in soil desalination, which is an issue for agriculture. Saltwater is desalinated to produce water suitable for human consumption or irrigation. One by-product of desalination is salt. Desalination is used on many seagoing ships and submarines. Most of the modern interest in desalination is focused on cost-effective provision of fresh water for human use. Along with recycled wastewater, it is one of the few rainfall-independent water sources.
Due to its energy consumption, desalinating sea water is generally more costly than fresh water from rivers or groundwater, water recycling and water conservation. However, these alternatives are not always available and depletion of reserves is a critical problem worldwide. Currently, approximately 1% of the world's population is dependent on desalinated water to meet daily needs, but the UN expects that 14% of the world's population will encounter water scarcity by 2025. Desalination is particularly relevant in dry countries such as Australia, which traditionally have relied on collecting rainfall behind dams for water.
According to the International Desalination Association, in June 2015, 18,426 desalination plants operated worldwide, producing 86.8 million cubic meters per day, providing water for 300 million people. This number increased from 78.4 million cubic meters in 2013 a 10.71% increase in 2 years. The single largest desalination project is Ras Al-Khair in Saudi Arabia, which produced 1,025,000 cubic meters per day in 2014, although this plant is expected to be surpassed by a plant in California. Kuwait produces a higher proportion of its water than any other country, totaling 100% of its water use.
文章题目Newly Hatched birds
重复年份20150430 20130718 20100821 20070922
The changes in body weight and composition were examined in broilers that either had immediate access to feed and water or had not been fed for 48 h posthatch. Chicks without access to feed decreased in BW by 7.8% in the 48 h posthatch, which was equivalent to 5.3 kcal/45 g chick/d. However, during this period the small intestines increased in weight and protein content by 80% or more. The decrease in yolk fat and protein could account for most of the changes in body composition in the feed-deprived chick. In contrast, fed chicks grew by 5 g and used 4.5 kcal/d for maintenance; during this period small intestines increased in weight by 110%. Intestinal absorption of exogenous nutrients was determined from hatch through 4 d posthatch by administration of a bolus of labeled glucose, methionine, or oleic acid, together with a nonabsorbed reference substance. Absorption of fatty acids was more than 80% at hatch and was higher than that of glucose and methionine, which was low especially when the bolus was administered as a solution. Absorption of all components tested increased with age and was more than 80% on Day 4. Duodenal in situ uptake determinations in hatching chicks indicated that uptake of oleic acid was high from yolk and saline solutions compared with glucose and methionine, which exhibited low uptake from yolk but higher uptake from saline solutions. These studies indicate that, although the small intestine has the capacity to absorb carbohydrates and amino acids at hatch, uptake may be dependant on the development of suitable conditions, including sufficient pancreatic and brush border enzymes for digestion and adequate sodium for function of the glucose-sodium cotransporters.
文章题目Egypt‘s Sunken Treasures
The exhibition of Egyptian antiquities currently at the Grand Palais in Paris possesses an international importance comparable in the past 40 years only with the exhibition of Chinese art organised by Beijing at the Petit Palais in 1973. Instead of famous works of art from museums or private collections, it displays a great number of new archaeological discoveries, including some unexpected chef d'oeuvres, all but one unpublished before now. Shown first in Berlin, it has been organised by a French underwater archaeologist, Franck Goddio (Fig. 5), to present the results of well over 10 years of his research along the shores of the Nile delta. [FIGURE 5 OMITTED] During the first millennium AD, several earthquakes and floods between Alexandria and the western mouth of the Nile caused the coastline to sink into the sea along a stretch of some 30 kilometres. ThonisHeraklion, at the end of the Canopic branch of the Nile, and the neighbouring city of Kanopos-East disappeared during the 7th-8th century. The inundation of Alexandria's eastern harbour, called by the Romans Portus Magnus, occurred between the mid 4th and the early 14th centuries AD. Goddio has been assisted by a skilful team drawn from Egypt, France, Germany and elsewhere. But the vision, the will and the tenacity that have kept together the complex machinery of the enterprise are his. Now over 50, Goddio has wide experience of diving in the Pacific and the Atlantic. The results of his long underwater search presented in the Grand Palais are in many ways comparable to the rediscovery of Troy by Schliemann in the 19th century and of Tutankhamun's tomb by Lord Carnarvon and Howard Carter in the 1920s. It is true that among the underwater ruins that he has explored, Goddio has not recovered any gold and silver treasure comparable with the findings of Schliemann and Carter. As far as gold is concerned, the show includes only some coins, earrings, rings, amulets and crosses. However, the discovery under the sea after so many centuries of three ancient ports enables Goddio to take his place not only beside Schliemann and Carter but also...
“The time is up. please stop writing and waiting for submission”雅思考试是无声的战场。当上面这句话响起的时候，你是如释重负地放下了笔，期待着终有所获的成绩，还是犹豫又不甘心地停笔，懊恼地想这一场又无法和雅思分手呢?