“讲忠诚、严纪律、立政德”三者相互贯通、相互联系。忠诚是共产党人的底色，纪律是不能触碰的底线，政德是必须修炼的素养。永葆底色、不碰底线Unit 4 Legends of ancient Greece.阅读理解(共15小题；每小题2分，满分30分) 阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。A(2016海淀区期中)Tips for Cycle TripsCycling has many advantages as a form of travel, as it is the fastest way to travel by human power and slow enough to allow the type of local involvement that is impossible with powered travel.Cycle travel is a cheap form of transportation.DistanceOn level terrain(地形)，without a headwind, a cyclist of average fitness on a touring bike can comfortably cover 60120km a day.Distances of up to 250km a day are possible, but anything much beyond 120km will require considerable physical tension and not allow many stops to enjoy the places you visit.For many,80100km a day will be the most suitable distance to aim for, as it will give a sense of achievement and also leave plenty of time for meals and activities.GeographyThe gradient(坡度)of the trip will reduce your range.A basic rule is that for every 100 meters of altitude you climb, you should add an extra 15 minutes to your journey time.In hilly or mountainous areas, the easiest routes for cycling are downstream along major rivers, as overall they will be downhill.A long, roundabout route along a river will usually be easier than a short, direct route over a hill or mountain pass.However, it is worth bearing in mind that the most scenic routes often come from hilly terrain.EatFood choice depends largely on where you are, so see the respective sections for more information about foods. As you will be working hard, its important to get enough energy in your food. On long trips away from major towns，there may be little quality food available, so be prepared to live on candy bars, prepared meat products and the like if the need arises.SleepWhile you can take a tent with you, many hotels and especially campsites can accommodate cyclists. However, there are also some hotels that may be less used to accommodating cyclists. If you are exploring an unfamiliar world asking about the accommodation spares you the search for a new place to stay after a long exhausting day of travel.【语篇解读】本文给我们提出了骑车旅行的几条建议。1Which of the following distance does the author suggest to ordinary cyclists a day?A50km.B90km. C130km. D250km.【解析】细节理解题。根据第二段第三句“For many,80100km a day will be the most suitable distance to aim for.”可知，B项正确。【答案】B2From the passage, we can learn that_.Ahigh quality food is easy to get on long tripsBhotels seldom provide accommodation for cyclistsCcycling over a mountain is challenging but worthyDit takes cyclists 15 minutes to climb 100m of altitude【解析】细节理解题。根据“Geography”下面的内容可知，骑车爬山是很有挑战性的，但是却是值得的。【答案】C3We can probably read this passage in_.Aa geography bookBa research reportCa science fictionDa travel magazine【解析】推理判断题。由全文可知，这篇文章出自旅行杂志，而非地理课本、研究报告或者科学小说。【答案】DB(2016河南百校联盟高三质监)The World Health Organization warns that millions of people are dying every year from indoor air pollution. The WHO finds that poor cooking, heating and lighting technologies are killing millions of people each year.Indoor air pollution results from the use of dangerous fuels and cookstoves in the home. To help fight the problem, the WHO announced new guidelines aimed at reducing household pollutants.WHO officials say nearly three billion people are unable to use clean fuels and technologies for cookingheating and lighting. And they say more than seven million people die from exposure to indoor or outdoor air pollution each year. Of that number, the WHO says about 4.3 million people die from household air pollution given off by simple coal cookstoves. Most of the deaths are in developing countries.Carlos Dora is Coordinator in the WHOs Department of Public Health, Environmental and Social Determinants of Health.He says people should not use unprocessed coal and kerosene fuel indoors. He says opening a window or door to let out the harmful air will not improve the situation. It will only pollute the outdoors.WHO officials say indoor pollution leads to early deaths from stroke, heart and lung disease, childhood pneumonia(肺炎)and lung cancer. Women and girls are the main victims. The United Nations found that more than 95 percent of households in subSaharan Africa depend on solid fuels for cooking. It says huge populations in India, China and Latin American countries, such as Guatemala and Peru, are also at risk.Nigel Bruce is a professor of Public Health at the University of Liverpool. He says researchers are developing good cookstoves and other equipment to burn fuels in a more efficient way.WHO experts note some new, safe and lowcost technologies that could help are already available. In India, you can buy an induction(电或磁) stove for about $8.00. And in Africa you can buy a solar lamp for less than $1.00.【语篇解读】据世界卫生组织统计，每年数以万计的人死于室内空气污染，其主要原因是质量不好的煤炉造成的污染。4What has be