Fifa has announced a track by Pitbull and Jennifer Lopez as the official the me song for the 2014 World Cup in Brazil.     We are one,which also features Brazilian singer Claudia Leitte,will be performed at the opening ceremony at the Arena de Sao Paulo on 12 June.     The track will be released later this year in the lead up to the World Cup.It will also be included on the upcoming official 2014 Fifa WorldCup album.     Pitbull said,"I truly believe that this great game and the power of music will help unify us,because we are best when we are one."The 33-year-old singer, also known as Mr.Worldwide,has had 11 top 10 tracks in the Official Singles Chart to date.His most recent single,"Timber which features Kesha,was the first number one of 2014.       "I grew up in a house that loved football.so I am thrilled to be performing at the World  Cup Opening Ceremonies, with  Pitbull and Claudia Leitte,"said Jennifer Lopez."This is all  amazing celebration of global unity,competition and the sport."   The last Fifa World Cup song for the South Africa tournament in 2010 was Waka Waka by  Shakira.The track peaked at number 21 in the Official Singles Chart and the video has been  viewed almost 600 million times on YouTube.     Talking about this year's track,Fifa General Secretary Jerome Valcke added,"In my many visits to this country I've seen and heard a lot about the great Brazilian music tradition and it gives me great pleasure to see a Brazilian artist at the heart of this song.I'm sure,like me, millions of football and music fans all over the world will be eagerly awaiting the song's  release." What does the whole text mainly tell us? A) The 2014 World Cup will open at the Arena de Sao Paulo on 12 June. B) Pitbull has had 11 top 10 tracks in the Official Singles Chart so far. C) The power of music and football will help unify US,when we are one. D) We Are One has been chosen as the theme song of the 2014W0rldCup.
D

Experts say that agriculture provides fourteen percent of the world's greenhouse gas emissions   each year. The gases released include carbon dioxide, a major cause of global warming. Twenty-one nations around the world recently joined forces to better understand and prevent greenhouse gas emissions from farms. The Global Research Alliance on Agricultural Greenhouse Gases was launched   at the United Nations conference on climate change. The meeting took place in Copenhagen,Denmark last month. Agricultural experts blame a number of farm activities for producing greenhouse gases. For example,  animal waste and cattle digestive   systems release methane(,) gas. Fertilized soil and the burning of crop waste also release harmful gases into the air. Experts say some methods of farming---turning the soil to prepare for planting---also release harmful carbon dioxide. An official of the European Commission's Directorate Genera1 for Research says agricultural greenhouse gas emissions can be cut. Maive Rute suggests feeding animals a diet designed to reduce emissions. The new agricultural research group says protecting against global warming is only part of its purpose. It says the world also needs to develop better farming methods to feed growing populations in poor countries. United States Agriculture Secretary Tom Vilsack said no one single nation can fight agricultural greenhouse gas emissions and increase food production at the same time. This is why the  _ e is important for combining resources and finding new ones. The United States Department of Agriculture (USDA) will increases spending on farm emissions research by ninety million dollars over the next four years. The total will reach one hundred thirty million dollars. The USDA will share the research with other countries in the Global Research Alliance on Agricultural Greenhouse Gases and support researchers from developing countries that belong to the alliance. Money from the Borlaug Fellowship program will let the researchers study agricultural climate... How much has the USDA spent on farm emissions research so far? A) 130 million dollars. B) 220 million dollars C) 40 million dollars. D) 90 million dollars.
C

Not long ago, people could only buy organic food in small shops. Today it is common in most major supermarkets. The reason for the increase is that more and more people are demanding food grown without chemicals. Since the 1990s, organic farm production has gone up 20 percent every year. This pattern is expected to continue around the globe. Australia leads the world in land used for organic agriculture. It has four times as much land devoted to organic farming as all of Asia. However, most of the land is not very fertile, and it only produces a modest amount of food. Argentina is a distant second, followed by Brazil, the United States and China. In Africa, only a very small amount of land is registered for organic farming. That does not mean Africa relies on chemicals. In fact, many farmers do not use chemicals because they cannot afford them. Yet there are no programs for these farmers to prove they do not use chemicals. Without these programs their food can never be approved organic. India has had the most dramatic recent increase in organic farming. Like many other countries, India sees continual growth in organic food sales around the world. This, of course, leads to growth in profits. Sales of organic food were more than doubled from 2000 to 2005. Like India, many countries are trying to increase commercial organic farming to get a share of the sales. This has led to criticism. Some people believe that organic farming should not just be about making money. They think the goal is to help the environment. Others say organic farming will not continue if it is not profitable. They say that people should be able to make money while providing food that is healthy to mankind. Why do people want to increase organic farming? A) More and more people demand chemicals to grow food. B) Profits from organic farming help make approval programs. C) There are fewer chemicals available to the human beings. D) Organic food is good for the Earth and the human beings.

D