Driving is one of necessary skills that each person should have if they wish not to get trouble during their life. You had better start learning to drive when you are eighteen. Experience tells that the older you become, the harder it is to learn to drive.
Learning to drive may be the very last thing on your mind when you graduate from a university, but it is helpful to look for a job and pay off the money which is spent on your study.
So, the best way is to start out early to take driving lessons. Many teens in recent times are choosing not to drive. If so, you are really missing out on a huge part of growing up and losing lots of benefits on a whole. The top reason for not learning to drive is the high costs of driving lessons. But, we are here to tell you why you should ignore the costs and pay much attention to the many advantages.
At times you aren't or can't be depending on public transportation. Those are the times you are probably depending on a friend, or your parents for a ride. Knowing how to drive yourself will make you independent and you wouldn't have to fit your plans according to other people s plans.
In the recent job world, there may be plenty of jobs. However, you won’t be thought to be an eligible candidate（合格的候选人）because you don' t know how to drive.
1. When is the best time to learn to drive according to the text?| A．When you are in your free time. | B．When you are eighteen. |
| C．After you have some driving experience. | D．After you find a job. |
| A．They are busy looking for jobs. |
| B．They find public transportation more convenient. |
| C．They are unwilling to pay high cost. |
| D．They show no interest in driving. |
| A．Independent of parents. |
| B．Easy-going for your workmates. |
| C．Reliable for your boss. |
| D．Eligible for jobs. |
| A．Why Is Driving Comfortable? | B．Why Should You Learn to Drive? |
| C．The Methods of Learning to Drive | D．Learn to Drive to Find a Job |
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【推荐1】Back in 1912, a man named Carl Fisher had an ambitious dream of creating a roadway that would cross the United States. He wanted the road to be in good condition and to handle the traffic. Eventually, his efforts led to the Lincoln Highway. It runs through 13 states. Originally, the surface of the highway was small stones, but over time, the project began to add new materials. Since then, people have made progress in creating more durable (耐用的) mixtures of road surfacing.
However, basically, highway technology hasn’t changed a lot since the early 20th century. But that doesn’t mean we’ll be driving on the same type of highways by 2050. Numerous companies are working on creating smart highways using sensors that will help observe and redesign traffic. More importantly, it’s not hard to imagine some parts of cars working along with the sensors in the highways. For example, safety measures in the highways will help prevent crashes by observing the position and speed of the cars. When conditions change suddenly on the road, the system will override a car’s control system, which leads to fewer accidents and traffic jams.
Perhaps we’ll even reach a point where our cars will connect with the highways so that we can renounce driving completely if we choose. Just imagine the day when we just tell our car where we want to go and then let it do all the work for us.
What’s more, research into self-repairing materials may lead to lower repair costs. And scientists are working on photoelectric panels (光电面板) that can support highway traffic. Our future highways will become large generators (发电机), collecting energy from the sun to be changed into electricity. We may be able to create a transportation system that provides its own power.
Solar panels in the road can have other parts as well. Imagine fixing LEDs into the panels, allowing transportation officials to display warning signs or other information on the road. Or they could include a heating element in the panels that allows the highway to increase its temperature, melting ice and snow. In this way, many accidents on icy roads can be prevented. And drivers can keep their car in a stable running condition.
1. What may be the key design for future smart highway systems?| A．The use of sensors to collect traffic information. |
| B．The functional combination of roads and cars. |
| C．The timely settlement of car crashes. |
| D．The strict control of cars’ speed. |
| A．Pick up. | B．Speed up. | C．Give up. | D．Keep up. |
| A．Durable and practical. | B．Flexible and moneymaking. |
| C．Convenient and time-saving. | D．Economical and environmentally friendly. |
| A．Improving cars’ efficiency. | B．Making traffic conditions safer. |
| C．Showing traffic signs more clearly. | D．Keeping drivers in good physical condition. |
【推荐2】In November, 2008, voters in California approved one of the most ambitious government infrastructure (基础设施) projects in. U.S. history; a bullet train connecting San Francisco and Los Angeles, at a cost of $33 billion. For years, however people have watched the projected costs mount, with the last estimates over $75 billion.
On Tuesday, the governor of the state Gavin Newsom called for the state to scale back the project to a less costly rail that would run through the Central valley. California voters can stop seizing their wallets. But voters elsewhere should pay close attention, because what happened in California problem that face any U.S. rail project, or any infrastructure project that tries to meaningfully reshape U. S.
In other places of the world, major population centers are much closer to each other, which is a basic requirement far high-speed rail. Imagine what it would take to build a line from New York City to Los Angeles or to Chicago, Houston or Phoenix.
Of course, some cities look ripe for rail, but instead of high-speed rail between these cities, we have the Acela, which takes eight hours to travel from Washington to Boston and shakes like a maraca player. Why haven’t we built something better? Because truly high-speed rail needs to travel in a fairly straight line; you don’t want to be taking a sharp curve at 300 miles per hour. Building newer, better, straighter rail lines would require the government to buy all the land between Point A and Point B and tear down anything that happened to be in the way. But in fact, there are a great deal of highly valuable estates instead of farms.
For historical reasons, the U. S. legal system offers citizens rights with which they can attempt to block government projects. Any project bigger than painting a schoolhouse has to either fight out the constant reviews and court cases for years, or buy off the opponents.
1. What happened on Tuesday in California?| A．Voters were raising funds for a new railway. |
| B．It was purposed that the hill of high railway was adjusted. |
| C．The governor of the slate declared the opening of a new railway. |
| D．The governor of the state discovered a vital problem in the railway project. |
| A．It is reasonable to build a high-speed railway from New York to Chicago. |
| B．Acela is a kind of train in place of high-speed train which provides pleasant feelings. |
| C．High-Speed train frequently takes a sharp curve during the travel. |
| D．The estates located on the straight rail line are very expensive to purchase. |
| A．It meets the requirements of American citizens. |
| B．It allows American residents to block most government projects. |
| C．It is not efficient in dealing with practical problems. |
| D．It requires much expense to accomplish something. |
| A．Absence of American High-Speed Rail | B．An American State with New Railway |
| C．A New Policy on American Railway | D．The History of American Railway |
【推荐3】Nearly everything we do contributes to our carbon footprint.
E-bikes have the same components as traditional bicycles: frames, seats, handlebars, and wheels.
The pedal assist on e-bikes can encourage riders to bike farther and more often than they would on a traditional bike, leading to more exercise long-term. This also makes e-bikes a multifunctional option for older riders and individuals with disabilities that would otherwise prevent them from biking.
| A．E-bikes also need public storage and charging stations. |
| B．They differ in their power and speed. |
| C．Some women chose e-bikes because they make them feel safer, research says. |
| D．Energy recovery is one common method. |
| E．E-bikes are fueled by batteries, making them heavier. |
| F．But a two-wheeled solution is zipping through the world at 20 miles an hour. |
| G．E-bikes are a powerful tool on the road to sustainability. |
【推荐1】This commercial kitchen in central London prepares one-and-a-half thousand meals a day. It provides catering for a museum and a conference centre. Kitchens like these typically throw away 20% of the ingredients they buy. Some are thrown away even though they are edible. And sometimes food ends up in the bin simply because it's not needed after all.
To stop this happening, this kitchen has been using a new piece of technology which can simply be connected to a normal bin on scales (磅秤). This is what’s known as a smart bin. Kitchen staff use it like a supermarket self-checkout. The idea is to keep an accurate digital record of the food being thrown out. This helps the head chef make more informed choices.
Bill Owen, head chef said, ''It was a shocker how many tons are actually saved through using this. '' By keeping an eye on exactly what kind of food is being thrown out, the chef can not only adjust his orders of ingredients, but also make whole new menus based on what was previously being thrown away. ''In an operation where you make a significant amount of your food in advance, you can typically cut food waste in half. '' Mark Zornes Winnow added.
Do people actually have time to sort the food as they are putting it into the bin? They do. To start with, take a little while to get used to the bin system. It is just about familiarizing yourself with where the buttons are.
However effective they may be, there is one important factor that holds these smart bins back. Andrew Stephen, CEO of Sustainable Restaurant Association, explained, ''Traditionally, smart bin technology has been at quite a high price point for particularly small operators. There is only a relatively small part that can afford that upfront implementation (安装启用). '' It seems that smart bins are just one part of the solution to the pressing problem of food waste.
1. What does the underlined word ''edible'' in Paragraph 1 mean?| A．awful | B．unnecessary | C．delicious | D．eatable |
| A．change the menus | B．make much food in advance |
| C．cut the food waste | D．adjust the purchase of ingredients |
| A．People need to sort the waste before putting them into the bin. |
| B．The bin is connected to a supermarket self-checkout. |
| C．The weight of the waste can't be known through the bin. |
| D．Andrew Stephen was optimistic about the future of the bin. |
| A．They can't keep an accurate record. | B．They are too expensive. |
| C．They're too complicated to operate. | D．They are not effective. |
【推荐2】For most ordinary purposes, machine translation (MT) has got a lot better in the past years. The biggest source of improvement has been the adoption of “deep learning” in training translating systems. But improvement has also come about through the expansion of clever companies solving individual tasks. Some have created specialist dictionaries so that important terms can be translated accurately and consistently. Other inventions combine MT with a human translator’s editing tools, which means translators spend most of their time checking and perfecting MT output, rather than doing the work of the translating themselves.
For some translators, being a machine’s editor may sound depressing. This can be seen the other way around, however. A human repeatedly translating identical formulae can get bored. Allowing the machine to do these boring jobs frees the translator to apply specialized knowledge, solving more intellectually satisfying problems.
What are those problems? One Madrid-based translator for a big law firm describes a recent task. It involved making a critical distinction in a legal document: a Spanish word (dolo) that’s properly translated as “wilful misconduct” was translated only as “misconduct” by software. Since the law requires considerably severer punishment when the misconduct is “wilful”, the omission (省略) was potentially disastrous.
Today, many translation firms are proud of using MT, not as a crutch (依赖) but as a means to cut costs and turnaround times. Part of their job becomes knowing what can be automated and what cannot. Instruction manuals can be left to MT while others like a novel legal argument cannot.
The bad news for some translators is that a tap of repeatable, easy work is being turned off. The good news is that what remains will be brain-challenging stuff for people who know a language and something else. Tales of artificial intelligence usually test humans against machines. But the translators of the future will be neither entirely human nor machine. They will be human beings with mechanical enhancements.
1. What can we learn about machine translation from paragraph 1?| A．It has been mostly used by specialists. |
| B．Lots of efforts have been made to improve it. |
| C．Some clever companies have made a fortune from it. |
| D．It has replaced human translators in some simple tasks. |
| A．Experienced translators are hard to find. |
| B．Machine translation can be inaccurate. |
| C．Machine translation has led to many misjudgments. |
| D．It is difficult for translators to tell“wilful misconduct”from“misconduct”. |
| A．Positive. | B．Critical. | C．Uninterested. | D．Doubtful. |
| A．Technology contributes to productive translators |
| B．Translation is faced with a great technical challenge |
| C．The translator of the future is a human-machine hybrid |
| D．Career opportunities in the field of translation are increasing |
【推荐3】In geometry, architecture and art, a unique number is believed to be the secret to perfection. That is the golden ratio, or 1:1.618, a mathematical proportion.
The first recorded mention of the golden ratio in history dates back to 300 BC. The Greek mathematician Euclid called it the "extreme ratio". Its actual value is 1.6180339887498484820…But it's usually rounded up to 1. 618. At the beginning of the 20th century, the American mathematician Mark Barr gave it the name phi, pronounced fee, after the Greek sculptor Phidias.
The golden ratio exists when a line is divided into two parts and the longer section(a)divided by the smaller section(b)is equal to the entire length of the line(a+b)divided by the longer section(a).
Once you start to notice the golden ratio, you will see it everywhere. Leonardo da Vinci is often associated with the golden ratio. His most famous painting, the Mona Lisa, seems to contain several examples of this geometric proportion.
Stephen Silver, who has worked for big studios such as Disney, Warner Brothers and Sony Pictures Animation, has designed the characters for popular animated television shows such as Kim Possible and Danny Phantom. He shares the secret of how to create perfect designs. "Characters with an even design are likely to lack movement," he says. "They feel ordinary and quickly lose appeal.” Instead, he applies the golden ratio to break up proportions to create "more contrast and variation in shape", which makes his characters come alive. The golden ratio prevents him designing characters that are too evenly spaced.
Silver isn't the only graphic artist who thinks the golden ratio is special. Golden geometry can be found in the Pepsi, Twitter, and Disney logos. Next time you draw a picture or design a logo, you can try it out!
1. Who named the golden ratio phi?| A．Euclid | B．Mark Barr. | C．Phidias. | D．Leonardo da Vinci. |
| A．a/b=(a+b)/a | B．a/b=a/(a+b) |
| C．a/b=b/(a+b) | D．a/b= (a+b)/b |
| A．Skeptical. | B．Cautious | C．Positive | D．Negative. |
| A．The secret to the perfection | B．The golden ratio in the art. |
| C．The famous character designer. | D．How to be a famous artist. |
【推荐1】All living organisms are uniquely adapted to the environment in which they live. Scientists are studying the design and the biological processes of these organisms to get ideas for products and technologies. This field of study is called biomimetics. Here are two examples.
Toucan Bills and Car Safety
Toucan usually has enormous bills. Scientists have found that the toucan's beak is designed to be both strong and light. The surface is made of keratin, the same material in human fingernails and hair. But the inside of the bill has a foam-like structure and is made up of a network of light, thin pieces of bone. It contains a lot of air, and some areas are hollow, not solid. This design makes the bill hard but very light.
The design of the toucan bill can be used to make cars and planes safer. Studies show that the beak's structure can absorb high energy impacts very well. Car body panels that mimic toucan bills may offer better protection to motorists involved in crashes.
Shark Scales and Swimsuits
Shark skin may look smooth, but it's actually rough. Sharks are covered in scales made from the same material as their teeth. Viewed up close, the scales actually look like tiny teeth. These scales protect the shark and help to keep it clean. They are also flexible and can turn or bend in the water. This movement reduces the waters drag on the shark and helps it to swim quickly.
Scientists discovered that the shortfin mako's scales vary in size and flexibility over its body. For instance the scales on the sides of the body are tapered — wide at one end and narrow at the other. They can turn up or flatten to adjust to the flow of water around the shark and to reduce drag.
Scientists believe that shark scales can inspire designs for machines that experience drag, such as airplanes. Designers are also getting ideas from shark scales for designing swimwear and coating ship bottoms.
1. Why do car body panels copy the design of toucan bill?| A．To better protect passers-by. | B．To reduce the injury to drivers. |
| C．To decrease the chances of crashes. | D．To make cars lighter and easier to control. |
| A．Coating for ship bottoms to run faster. | B．Coating for airplanes to experience drag. |
| C．The panel that makes the plane safer. | D．Swimwear that is smooth to keep itself clean. |
| A．To present two innovative products. | B．To introduce biomimetics by example. |
| C．To show the unique adaptations of animals. | D．To discuss the link between humans and animals. |
【推荐2】The traffic in Lagos, Nigeria’s capital, is enough to make the most patient travelers mad. A rush-hour commuter（通勤者）can take three hours to go 15 km. Office workers try, often in vain, not to fall asleep at their desks after hard and sweaty journeys. Globe-travelling managers are never sure whether they will catch their flights.
A person who benefits has been the okada rider. On his cheap motorbike taxi, he often carries an entire family or a week’s groceries, ducking through the traffic. His wildly time-saving ways include riding on the wrong side of the road and ignoring red lights.
But Babatunde Fashola, Lagos’s popular governor; is banning okadas as part of his push to put the city in order. On September 1, Mr. Fashola banned okadas from many of the coastal city’s main roads and bridges.Many Lagosians say that, though he has actually banned okadas, the governor has failed to provide alternatives.
Many poorer Lagosians, facing long journeys from the countryside, must now use far slower taxis or unlicensed minibuses. Richer people who have always used their own cars are also complaining（抱怨）as the jams become even worse.
Mr Fashola notes that the untrained riders cause many accidents. Of the dozen, five admit to having had serious crashes. One has an open wound on his leg. Another lifts his T-shirt to show a scar on his chest. Mr. Fashola, who took office in 2007, has been trying to set up a proper public transport system. A bus system with its own lanes started running in 2008. Two railway lines are promised, though it is unclear when they will be laid.
But many think the campaign against okadas is not mature. Whether Mn Fashola can successfully carry out his measures is another matten After he previously ordered okada riders to buy helmets, many wore old paint cans and melon rinds（瓜皮）.
1. What in particular annoys Lagosian commuters?| A．Not having fixed taxi fares. |
| B．Wasting time in traffic jams. |
| C．Not having punctual flights. |
| D．Missing scheduled appointments. |
| A．To promote the use of taxis. |
| B．To introduce new alternatives. |
| C．To make himself a more popular governor |
| D．To create a city with a good transport system |
| A．The green concept is most welcome in Nigeria. |
| B．Lagosians are creative and full of imagination. |
| C．Lagosians didn’t fully support Mr. Fashola’s measures. |
| D．The campaign against okadas didn’t catch public attention. |
Only after a week’s leave—— during which he read novels, listened to music and walked with his wife on a beach—— was Rudenstine able to return to work.
In our modern life, we have lost the rhythm between action and rest. Amazingly, within this world there is a universal but silly saying: “I am so busy.”
We say this to one another as if our tireless efforts were a talent by nature and an ability to successfully deal with stress. The busier we are, the more important we seem to ourselves and, we imagine, to others. To be unavailable to our friends and family, and to be unable to find time to relax—— this has become the model of a successful life.
Because we do not rest, we lose our way. We miss the guide telling us where to go, the food providing is with strength, the quiet giving us wisdom.
How have we allowed this to happen? I believe it is this: we have forgotten the Sabbath, the day of the week—— for followers of some religions—— for rest and praying. It is a day when we are not supposed to work, a time when we devote ourselves to enjoying and celebrating what is beautiful. It is a good time to bless our children and loved ones, give thanks, share meals, walk and sleep. It is a time for us to take a rest, to put our work aside, trusting that there are larger forces at work taking care of the world.
Rest is s spiritual and biological need; however, in our strong ambition to be successful and care for our many responsibilities, we may feel terribly guilty when we take time to rest. The Sabbath gives us permission to stop work. In fact, “Remember the Sabbath” is more than simply permission to rest; it is a rule to obey and a principle to follow.
1. The “alarm” in the first paragraph refers to “_______”.
| A．a signal of stress |
| B．a warning of danger |
| C．a sign of age |
| D．a spread of disease |
| A．be able to work without stress |
| B．be more talented than other people |
| C．be more important than anyone else |
| D．be busying working without time to rest |
| A．think that taking a rest means lacking ambitions |
| B．fail to realize that rest is an essential part of life |
| C．fail to realize that religions force them to rest |
| D．think that taking a rest means being lazy |
| A．We should balance work with rest. |
| B．The Sabbath gives us permission to rest. |
| C．It is silly for anyone to say “I am busy.” |
| D．We should be available to our family and friends. |
【推荐1】New research found that people facing stay-at-home orders tried cooking new things and threw away less food. The results came from a recent research project involving 11,000 shoppers in 11 countries. It showed that people were buying less microwaveable food and more fresh fruits and vegetables.
The study involved shoppers in several European countries, as well as Australia, Chile, Uganda, Canada and Brazil. In nearly half of the countries, shoppers reported buying fewer salty or sweet snacks, although overall sales remained about the same.
Charlotte De Backer, a lead organizer of the study, who was a researcher at the University of Antwerp in Belgium, said many people turn to salty, sweet and fatty products when they are feeling stress. But during the current crisis－Coronavirus (冠状病毒), many people seemed to fill this desire with home-baked goods. In Chile, for example, there was a large drop in sales of snacks, but a big rise in people buying baking necessities like flour.
De Backer said the healthier food buying could be related to the fact that people took more time to carefully plan their trips to the store. “If you make a shopping list, you plan your meals ahead and you are less likely to add unhealthy food.”
Many shoppers taking part in the study also said they had tried cooking new things and used more left-over foods to reduce waste. However, De Backer said this behavior could be linked to fears of food shortages and could change after the Coronavirus .
But she noted that some of the improvements in eating are likely to continue. She says this is because in many countries, stay-at-home orders have been in place for more than six weeks – the usual amount of time it takes people to form new behaviors.
De Backer also said that as people grow more confident and creative in the kitchen, they could break down one of the main barriers to home cooking.
1. What do we know about the research?| A．It involved 11,000 people facing stay-at-home orders. |
| B．In most countries, shoppers reported buying fewer salty or sweet snacks. |
| C．It showed that people tried cooking new things and threw away less food. |
| D．It showed people were buying more microwaveable food and less fresh fruits and vegetables. |
| A．They are feeling stress. |
| B．They desire home-baked food. |
| C．They are afraid of food shortages |
| D．They spend more time carefully planning their trips to the store. |
| A．People may keep some of the healthier eating habits |
| B．People usually take six weeks to form new behaviors. |
| C．People will return to their former eating habits after the crisis. |
| D．People who are confident and creative will stop home cooking. |
| A．Cooking Tips During Coronavirus | B．Shopping Lists During Coronavirus |
| C．Healthier Eating During Coronavirus | D．Develop Good Habits of Healthy Eating |
【推荐2】Time spent in a bookshop can be most enjoyable, whether you are a book-lover or merely go there to buy a book as a present. You may even have entered the shop just to find shelter from a sudden shower.
Whatever the reason, you can soon become totally unaware of your surroundings. The desire to pick up a book with an attractive dust-jacket is irresistible but you might end up with a rather dull book. A book-lover rarely adopts this method of selection. All too often you soon become absorbed in some book or other, and usually it is only much later that you realize you have spent far too much time there and must dash off to keep some forgotten appointment — without buying a book, of course.
This opportunity to escape the realities of everyday life is, I think, the main attraction of a bookshop. There are not many places where it is possible to do this. A music shop is very much like a bookshop. You can wander round such places to your heart’s content. If it is a good shop, no assistant will approach you with the unavoidable greeting: “Can I help you, sir?” You needn’t buy anything you don’t want. In a bookshop an assistant should remain in the background until you have finished browsing. Then, and only then, are his services necessary. Of course, you may want to find out where a particular section is, but when he has led you there, the assistant should retire considerately and look as if he is not interested in selling a single book.
You have to be careful not to be attracted by the variety of books in a bookshop. It is very easy to enter the shop looking for a book on, say, ancient coins and to come out carrying a copy of the latest best-selling novel and perhaps a book about brass-rubbing — something which had only uncertainly interested you up till then. This volume on the subject, however, happened to be so well illustrated and the part of the text you read proved so interesting that you just had to buy it. This sort of thing can be very dangerous. Apart from running up a huge account, you can waste a great deal of time wandering from section to section.
1. What is most likely to happen to a book-lover in a bookshop?| A．Lost in some book, he forgets something else important. |
| B．Annoyed by the shop assistant, he dashes off for an appointment. |
| C．Attracted by its cover, he buys some book turning out to be a dull one. |
| D．Unsatisfied with its surroundings, he leaves the shop without buying a book. |
| A．greet customers in a more suitable manner |
| B．retire from the job if he has no passion for it |
| C．leave customers alone before services are needed |
| D．offer nice services from the very moment customers step into the shop |
| A．ignore the latest best-selling novel |
| B．be trapped in a dangerous situation |
| C．buy some book you are not at all interested in |
| D．buy other books instead of those you initially want |
【推荐3】Peter and Cheryl Pitzer met in 1999. After training together, they fell in love and finally married in 2011. The Pitzers have been using their professional aviation skills to help people around the world regain sight. They are both volunteers for Orbis, a non-profit organization that turns airplanes into teaching hospitals and brings eye care and ophthalmology (眼科学) training to places around the world. The organization’s Flying Eye Hospital that the Pitzers fly together is an ophthalmic teaching hospital on board an MD-10 aircraft.
The Pitzers flew their first flight together with Orbis in November, a journey that took them from Dubai to Saudi Arabia and finally to Ghana, a country in West Africa. The couple stayed an extra week after landing the plane in order to be on the ground to help other Orbis volunteers treat people in need, and to train medical staff in the community. “There was a woman named Mary. When we met her on Monday she was almost completely blind and when we left she could see,” recalled Peter.
“They also did surgeries in the local hospitals with the local doctors and their equipment, and they provide continuing education afterwards,” Cheryl said of the team’s work in Ghana.“The idea is to leave the knowledge behind so that people will have access to proper eye care after the plane is gone.”
The couple say they are grateful to share an occupation that they love-one they can do together and that allows them to give back. “It's awesome to see so many people in poverty regain sight. Our work is worth it,” said Peter. “Cheryl and I have a great personal and working relationship. It's just an interesting and incredible way to give back.”
Cheryl noted the intense (紧张的) planning and coordination it takes to fly a major plane carrying a teaching hospital to remote locations. She said she and her husband have an advantage with that complex task because they “understand each other.”
1. What are Peter and Cheryl Pitzer by trade?| A．They are doctors. | B．They are pilots. |
| C．They are physicians. | D．They are teachers. |
| A．It is a mobile teaching hospital. |
| B．It is a modern general hospital. |
| C．It is a private hospital in Dubai. |
| D．It is a famous hospital in Africa. |
| A．the wealthy | B．the poor |
| C．the disabled | D．the wounded |
| A．It is tiring. | B．It is boring. |
| C．It is rewarding. | D．It is upsetting. |
