Read the following article and select the best answer. Article: At one time it was the dream of many little girls to become a nurse. Today, however, America is facing its worst nurse shortage since World War I. Recently about 2, 000, 000 nurses are needed and 60 percent of all hospitals in the US have shortages large enough to threaten the quality of care provided. The demand for nurses spreads widely throughout the nursing field. What has become of these women in white? The answer lies in not one but several causes. One possibility is the fact that women have greater career options . In the past, women who chose to work outside the home had two basic choices: nursing or teaching. Today, more women than ever are in the work force, but their options have greatly increased. There are women doctors, lawyers, firefighters and police officers. In fact, women today are found in nearly every field of work. Nursing has been left behind, as women move on to jobs with higher pay and greater status . A woman or man in the nursing field is often looked down upon as "merely a nurse". Teachers may be also at fault. Many high school students are actually being persuaded to keep away from nursing, told by teachers that they are "too bright to be a nurse". Americans are living longer than ever and requiring more medical attention. In fact, the number of elderly patients has almost doubled in the past twenty years. Obviously a larger population requires more nurses. AIDS and other diseases have caused more and more people to need nursing care. Usually fatal diseases mean long drawn-out hospital stay, that is to say, more nurses are needed to care for these patients. It is said that the demand for nurses will be doubled in the coming ten years. Question: What are the main factors that are responsible for the shortage of nurses in America? - Women are better educated and provided with more different jobs than men. - More women are clever enough to be doctors, lawyers and police officers. - Greater career options are offered for women and more patients require nurse care - There are more diseases and nurses are badly paid and looked down upon.
Greater career options are offered for women and more patients require nurse care

Read the following article and select the best answer. Article: This is new for me and I don't know what to say really, so I just want to have a try.I was always a runner and in pretty good shape for most of my life.Then unluckily, I couldn't get myself out to run. I put on weight and it made me feel worse about myself.I found it was much harder to begin to run again after a few years than it used to be and I tried my best through even the shortest, slowest jog. I was out in a run the other day and I had almost decided to give up before I heard someone say ,"You can do it ! It's hard ,but you can do it !"there was a lady walking the other way and had the biggest smile on her face. Those words encouraged me at a time when I was ready to give up.I finished my run and now every time I feel like giving up ,I can "hear"her encouragement. I've never seen her again ,so I've never been able to thank her and let her know that something so simple as a few words of encouragement from a stranger influenced (and still influence)me so much. Question: The writer mainly wants to tell us that _ . - Practice makes perfect - Many hands make light work - We should take care of ourselves - Encouragement is very important in hard times
Encouragement is very important in hard times

Q: Read the following article and select the best answer. Article: Next Stop: Planet Mars Fly me to the moon? That's not far enough. On September 14, 2011, NASA released designs for a superrocket, the Space Launch System (SLS). This time the final destination will be Mars. The SLS is a huge, liquid-fuelled rocket. If it is fully developed, it will be the most powerful rocket ever built. Its lift capability will be much bigger than that of the space shuttle of Saturn 5, the rocket that sent the Apollo missions to the moon. NASA is planning to launch its first unmanned test flight in 2017. It is hoped that the first crew will fly in 2021 and astronauts will make it to a nearby asteroid in 2025. NASA hopes to send the rocket and astronauts to Mars from the asteroid by the 2030s, according to the Associated Press (AP). NASA used liquid rockets to send Apollo, Gemini and Mercury into space, but later changed to solid rockets boosters because they were cheaper. Tragically, however, a booster flaw caused the space shuttle Challenger to crash in 1986. The new project plans to return to liquid fuel. According to AP, the rockets will at first be able to carry 77 to 110 tons of payload . Eventually they will be able to carry 143 tons into space, maybe even as many as 165 tons, NASA officials said. By comparison, the Saturn 5 booster could lift 130 tons and the space shuttle just 27 tons. However, unlike reusable shuttles, these powerful rockets are mostly one use only. New ones have to be built for every launch. This will be very costly. NASA estimates that it will cost about $3 billion (19 billion yuan) per year, or $18 billion until the first test flight in 2017. NASA hopes to make money by allowing private companies to send astronauts to the International Space Station like giant taxi services, so that the program can be "sustainable". "This is perhaps the biggest thing for space exploration in decades," said Senator Bill Nelson, a former astronaut. "The goal is to fly humans safely beyond low-Earth orbit and deep into outer space where we cannot only survive, but one day also live." Question: According to NASA's schedule, it will take _ years to fully complete the SLS program. - about 6 - about 10 - less than 14 - more than 19
A: more than 19

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Read the following article and select the best answer. Article: Travel is fun and exciting, but it's not if you get sick. You may think, "Not me, I won't get sick in my holiday." But, for many people, that is what happens. Of course you don't want to spend your holiday sick in bed. So what can you do to stay in good health? There are three things you should remember when you travel: relax, sleep, and eat well. A holiday must be a time for relaxing. But very often it is not. Think about what you do when you are a traveller. There are many places to visit: museums, shops, parks, churches. You may spend most days walking around these places. This can be very tiring. You may have a terrible headache after a few hours. If this is the way you feel, you should take a rest. Don't ask your body to do too much. A tired body means a weak body. And a weak body gets sick easily. So sit down for a few hours in a nice place. In good weather, look for a quiet park bench . Or you can stop at a cafe. You can learn a lot by watching people while you rest. Sleep is also important. If you want to stay healthy, you need to get enough sleep. You may have trouble sleeping at night when you travel. There may be too many noises in your hotel or the bed may be uncomfortable. If this is true, don't be afraid to change rooms or hotels. Or you may get enough sleep for another reason. You may want to stay out late at night. In many cities, the nightlife can be very exciting. Then you should plan to sleep for an hour during the day. The extra hour can make a big difference. Finally, if you want to stay healthy, you must eat the right kinds of foods but you need to be careful about how much you eat. Lots of food is not good for you. So, remember this, if you want to enjoy your holiday, take care of yourself. Give your body some rest. Get enough sleep and eat good, healthy food. Question: This passage is about _ - how to stay healthy when you travel - how exciting travel is - relaxing when you travel - what you eat when you travel
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how to stay healthy when you travel