题目

有学者认为：“政治与血缘的结合，看似牢不可破，其实不然。既然周天子授土授民 给诸侯叫做‘建国’，诸侯授土授民给卿、大夫叫做‘立家’，因此对于士、庶民而言， 就有‘国’与‘家’的对立，他们把自己的宗族称为‘家’，只知效忠于‘家’，而不知 效忠于‘国’。”材料表明  A．周天子是天下人的大宗            B．宗法制与分封制是互为表里的关系  C．分封制在历史上的作用是弊大于利  D．分封制隐含着国家分裂割据的因素Water runs downhill from mountaintops to streams to rivers to oceans. But downhill isn’t the only way that water moves .A new study measures how water travels from country to country for human consumption. This flow isn’t the type we usually think about .These scientists looked at the water used to grow and make the products which get shipped from nation to nation as imports or exports. They call this a flow of“virtual water（虚拟水）”.We typically think about water as the liquid that flows from a tap. However,92％of the water used by people goes into growing crops，according to water researcher Arjen Hoekstra. He recently studied the hidden travels of virtual water used in products made from things like crops and meats .These products are shipped around the world.For example．consider a sugary soft drink. Hoekstra estimated that to produce one half-liter of the drink requires between 170 and 310litersofthewater—about 95％—is used to grow and process the ingredients(原料).Another 4％goes into the packaging and labeling. In Hoekstra’s calculation, when one country produces a half-liter of soda and sells it abroad，it exports as much virtual water as would fill a large refrigerator．According to Hoekstra’s new report，dry countries like Israel and Kuwait，both in the Middle East, get the majority of their virtual water from other countries，through imported products. More surprisingly, some wetter countries，like the Netherlands and the United Kingdom, also get the majority of their virtual water from other places. That means that most of the water used to grow or produce the products and food consumed in those countries came from other countries.   In the United States most of the virtual water used comes from American sources .In China even less of the water associated with its products小题1:What is the best title for the passage?A．Crops and Virtual WaterB．Import and Export of WaterC．Benefits of Virtual WaterD．Water’s worldwide travels小题2:The first paragraph is intended to talk about__________.A．how water flowsB．what virtual water isC．where virtual water exists D．why water is imported and exported小题3:The example of a sugary soft drink in Paragraph 3 is given to show_________.A．how drinks are madeB．how virtual water is usedC．how virtual water is exportedD．how drinks are shipped小题4:In which countries does most part of virtual water come from outside?A．lsrael and AmericaB．America and the NetherlandsC．China and the United KingdomD．Kuwait and the Netherlands小题5:The passage is most probably a_________.A．science news reportB．book reviewC．newspaper advertisement D．science fiction story