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Read the following article and select the best answer. Article: Man has always wanted to fly. Some of the greatest men in history have thought about the problem. One of these, for example, was the great Italian artist, Leonardo da Vinci. In the sixteenth century he made designs for machines that could fly. But they were never built., Throughout history, other less famous men have wanted to fly. An example was a man in England 800years ago. He made a pair of wings from chicken feathers. Then he fixed them to his body and jumped into the air from a tall building. He did not fly very far. He fell to the ground and broke every bone in his body. The first real step took place in France in 1783. Two brothers, the Mongolfiers, made a very large "hot air balloon". They knew that hot air rises. Why not fill a balloon with it? The balloon was made of cloth and paper. In September of that year, the King and Queen of France came to see the balloon. They watched it carry the very first air passengers into the sky. The passengers were a sheep and a chicken. We do not know how they felt about the trip. But we do know that the trip lasted 8 minutes and that the animals landed safely. Two months later, two men did the same thing. They rose above Paris in a balloon of the same kind. Their trip lasted twenty-five minutes and they traveled about 8 kilometers. Question: Eight hundred years ago an Englishman _ . - made a kind of flying machine - tried to fly with wings made of chicken feathers - wanted to build a kind of balloon - tried to fly on a large bird
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tried to fly with wings made of chicken feathers

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Read the following article and select the best answer. Article: If you go to Ethiopia,you'll find a strange palm-like structure,which is called Warka Water.It gathers water from fog and condensation and is invented by an Italian firm. When Italian designer Arturo Vittori and Swiss architect Andreas Vogler first visited Ethiopia in 2012,they were shocked to see women and children forced to walk miles to access what,for them,had always been within easy reach,water. Only 34 percent of Ethiopians have access to a reliable water supply.Some travel for up to six hours a day to fetch some or,even worse,have to use pond water polluted by human waste, _ the spread of disease. Worldwide,about 768 million people--two and a half times the U.S.population--don't have access to safe drinking water.So just imagine if we could just pull water out of thin air?That's what Vittori and Vogler asked once they saw the severe problem and promised to take action.Their firm,Architecture and Vision,has since come up with Warka Water,a grand palm-like structure that may look like something you'd see in a modern art museum,but it's been designed to harvest water from the air. Warka Water,which is named after an Ethiopian fig tree,is composed of a 30-foot bamboo frame containing a fog-harvesting nylon net that can catch water easily,can be easily lowered for repairs and allow communities to measure the water level.Collecting water through condensation is hardly a new technique,but the creators of Warka Water say their tree-inspired design is more effective,maximizing surface and perfecting every angle to produce up to 26 gallons of drinkable water a day--enough for a family of seven. Western organizations have been working to provide clean water access in Africa for decades,so Warka Water joins a very long list of earlier attempts.So far,high-tech solutions,like the once promising Playpump,have failed,mostly due to high costs and maintenance issues. This is where Warka Water stands apart--a lower-tech solution that is easy to repair and far more affordable than digging wells in the rocky Ethiopian plateau. Question: Warka Water is designed mainly to _ . - gather clean water efficiently - reduce water supply costs - simplify maintenance - preserve water supplies
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gather clean water efficiently

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Read the following article and select the best answer. Article: Does being rich make you happy? Many studies on happiness give negative answers. Here are some points in being happy. Basic Human Needs Must Be Met People whose basic needs for shelter, clothing and food are not met will find it very difficult to feel happy. Of course, there are exceptions, but for most of us, we can only be happy once our basic needs are met. The Joneses Cannot Be Escaped People's happiness is not determined by how much they have, but by how much people around them have. So, we tend to feel happy once our basic needs are met and we have more than the people surrounding us. This means that while keeping up with _ could be destructive if we let it go too far. It is also part of humana nature to want to feel at least on the same level, financially, as those surrounding us. You Should Escape The Rat Race We should know the importance of staying out of the rat race. So yes, you need to work hard, get the education you need to land a good job and work long enough and hard enough to get to a place where you can easily meet your basic needs. What are basic needs? For most middle or upper middle class Americans, basic needs are not very basic anymore. For most of us, once our basic needs have been met, happiness is achieved when we engage in activities we like, spend time with friends and family and stay active. Making money for the sake of making money does not make people happy. Ideally, these questions should be answered when you're still young and just starting out. Don't wait until your midlife crisis to realize that half your life has passed you by and you're still unhappy. Question: From the passage, what is the purpose of people probably to do in "the rat race"? - To enjoy their life with family. - To get high education for better jobs. - To work too hard for money only. - To work hard for basic needs.
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To work too hard for money only.