One day, I received a call from a colleague. He was about to give a student a zero for his answer to a physical problem ，while the student claimed a perfect score. I was elected as their arbiter( 仲裁人).I read the examination problem： “Show how it is possible to determine the height of a tall building with the aid of a barometer(气压计).” The student had answered： “Take the barometer to the top of the building，attach a long rope to it，lower it to the street，and then bring it up, measuring the length of the rope. The length of it is the height of the building. ”
The student had really answered the question completely ，but the answer didn’t confirm his competence in physics. I suggested the student try again. I gave him six minutes to answer the question, warning that the answer should show some knowledge of physics. Five minutes later, he said he had many answers and clashed off one, which read： “Take the barometer to the top of the building and lean over the edge of the roof. Drop the barometer, timing its fall with a stopwatch. Then, use the physical formula (公式）to calculate the height of the building. ”
At this point, my colleague had to accept it, and then the student made almost full marks. I couldn’t help asking the student what the other answers were. He listed many others ，and then added5 “Probably the best is to take the barometer to the. administrator and said to him，' Sir, here is a fine barometer. If you tell me the height of the building, I will give it to you.，”
Then, I asked the student if he really did not know the conventional answer to this question. He admitted that he did ，but said that he was fed up with high school and college instructors trying to teach him how to think.
The name of the student was Bohr who later was famous all over ,the world. He won the Nobel Prize for Physics in 1922

  1. 1.

    The student got a zero at the beginning because_______

    1. A.
      the teacher wasn’t satisfied with him
    2. B.
      his answer wasn't complete or correct
    3. C.
      the teacher clicln5t fully understand his answer
    4. D.
      his answer didn’t show his knowledge of physics
  2. 2.

    We know from the passage that______

    1. A.
      the student knew the expected answer
    2. B.
      the administrator told Bohr the height
    3. C.
      the author preferred Bohr s last answer
    4. D.
      the teacher was a very stubborn person
  3. 3.

    We can learn from the passage that______

    1. A.
      instructors can teach students how to think
    2. B.
      arbiters can help students to get high scores
    3. C.
      students should be given more freedom in thinking
    4. D.
      teachers should make students use physical formulas
  4. 4.

    What was Bohr’s attitude toward his schooling?

    1. A.
      Optimistic
    2. B.
      Critical
    3. C.
      Approving
    4. D.
      Ambiguous

Mules
Although the top men in smuggling（走私）business must work together, most of a syndicate’s（集团）small fry, especially the mules, know only their immediate contacts. If caught there is little they can give away. A mule probably will not even know the name of the person who gives him his instructions, nor how to get in touch with him. Usually he even does not know the person to whom he has to make delivery. He will be told just to sit tight in a certain hotel or bar until someone contacts him. In this way if he is blown, coming through airport customs he cannot unwittingly lead agents to the next link in the chain. All the persons at the receiving end do is to hang around the airport among the waiting crowd, and see that the mule comes through safely. If he does not, he is dimply written off（报废；注销）as a loss. To make identification of mules easier, several syndicates have devised their own “club ties” so that a mule wearing one can immediately be picked out.
Mules often receive careful training before embarking on their first journey. One Beirut organization, for example, uses a room with three airline seats in it. There the trainee mules sit for hours on end wearing weighted smuggling vests beneath their clothes, so that they become accustomed to standing up after a long flight in a natural way, and without revealing what they are carrying. An outfit in Brussels maintained a comfortable apartment where the mules could relax and get a firm grip on themselves on the night before their first journey; they were helped to dress before setting out for the airport in the morning. More often than not a courier will not know precisely where he is going or what flight number is until he is actually handed his tickets at the airport. This prevents the careless boast in some bar or to a girl friend the night before.
Mules occasionally run off with the goods to keep the profit themselves. As insurance against this, a syndicate often sends a high-up on the same plane to keep a wary eye on couriers, particularly new ones. Even then things can go badly wrong. One international currency smuggler who was having trouble getting money out of Britain was offered help by a group of men who said they were in a position to “fix thing” – for a fee of course. Foolishly, the smuggler agreed to accept their help. When he got to London’s Heathrow Airport, he handed over to one of the men a black suitcase containing nearly $90,000 in cash, destined for Frankfurt. Just to keep an eye on things, the smuggler went along on the same plane. When they landed at Frankfurt he was handed back his suitcase. He beat a straight path to the men’s toilet, opened the case, and found only old clothes. The courier had switched suitcase en route, but the smuggler could hardly run to the police and complain that “the man who was smuggling money out of England for me has stolen it.”

  1. 1.

    What is a “mule”?

    1. A.
      A person who sends smuggling goods for a syndicate is called mule
    2. B.
      A person in charge of smuggling goods is called mule
    3. C.
      A person who makes delivery for a syndicate is called mule
    4. D.
      A person who receives instructions from a smuggler is called mule
  2. 2.

    The sentence “if he is blown” in line (6) is closest in meaning to

    1. A.
      if he is arrested
    2. B.
      if he is recognized, but not necessarily arrested
    3. C.
      if he is recognized and arrested
    4. D.
      if he runs away
  3. 3.

    Why does the author give an example in the last paragraph?

    1. A.
      To show how a smuggler is caught
    2. B.
      To show a smuggler is afraid of the police
    3. C.
      To show to keep a wary eye on couriers is useless
    4. D.
      To show mules may keep the profit for themselves
  4. 4.

    how does a mule work?

    1. A.
      Jointly
    2. B.
      Independently
    3. C.
      consciously
    4. D.
      Separately

Education cuts(削减) have become routine (惯常的) over the past few years, which has made it difficult for students to learn. The results of a survey of 1,850 Los Angeles County high school students show just how much the cuts are affecting students.
Because of teacher layoffs (解雇), class sizes at some high schools have risen to 50 students — even in math and English classes. Some 37 percent of students report that they sometimes don’t have a desk to sit at. Sixty-seven percent say crowded classrooms make them feel the teachers don’t have enough time to teach, and 30 percent say they’ve not been able to join in a program because it’s no longer offered at their school.
At a time when technology is an important skill, 52 percent of students say there aren’t enough computers. Or they’re often broken, and there’s no one to fix them. Fifty-one percent say they’ve had to share textbooks with a classmate because there aren’t enough copies to go around. Fifty-seven percent say they’ve had to copy information because their school doesn’t have enough paper to make copies.
“We have only one science teacher for the entire(整个的) high school,” writes Felix Ruano, a 16-year-old student. He goes on to describe how that teacher, who is only qualified to teach chemistry, is teaching physics — or, at least, is trying to do so. “He shows physics videos and we teach ourselves from our textbook,” says Ruano. And, as has been seen elsewhere, “all but one of the restrooms” at Ruano’s school “have been closed because we don’t have enough people to clean them.”
Ruano notes that though faced with the challenges, 97 percent of students say they plan to go to college. But without “properly trained teachers and the best resources,” says Ruano, it’s not likely that every student will achieve that goal. “Unless schools fix these problems,” he says, “students could lose hope.”

  1. 1.

    According to the text, education cuts have led to the following results EXCEPT that _____

    1. A.
      class sizes at some high schools have risen
    2. B.
      some students don’t have a desk to sit at
    3. C.
      some students have to share textbooks
    4. D.
      some students have to leave school
  2. 2.

    The underlined word “qualified” in the fourth paragraph can best be replaced by “_____”

    1. A.
      fit
    2. B.
      willing
    3. C.
      bored
    4. D.
      worried
  3. 3.

    According to Ruano, _____

    1. A.
      he is good at teaching himself
    2. B.
      most students plan to go to college
    3. C.
      his school is going to be closed
    4. D.
      most students are hopeful about their school
  4. 4.

    What would be the best title for the text?

    1. A.
      What caused education cuts?
    2. B.
      Education cuts, right or wrong?
    3. C.
      Education cuts have hurt students
    4. D.
      How to deal with education cuts

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 workforce, 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 many be also at fault. Many high school students are actually 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 (致命的) diseases mean long hospital stay, that is to say, more nurses are needed to care for these patients. It is estimated that the demand for nurses will be doubled the supply in the coming ten years

  1. 1.

    What does the second paragraph mainly talk about?

    1. A.
      How nurses have been looked down upon
    2. B.
      Why women have chosen many different jobs
    3. C.
      What has caused nurse shortage
    4. D.
      How teachers have influenced their students
  2. 2.

    The Passage tells that high school teachers are at fault for      

    1. A.
      not mentioning the worst nurse shortage in the US
    2. B.
      introducing jobs with higher pay and greater status to their students
    3. C.
      not asking the government to raise the nurses’ payment
    4. D.
      persuading the students not to be nurses
  3. 3.

    The author writes the Passage in order to        

    1. A.
      describe the unequal treatment of women in the US
    2. B.
      warn people to pay more attention to the nursing problem
    3. C.
      tell us women’s free choices of jobs today
    4. D.
      call on women to choose different kinds of jobs
  4. 4.

    It can be inferred from the Passage that       

    1. A.
      high school students think themselves too bright to be nurses
    2. B.
      women in the US have greater career choices than those in other countries
    3. C.
      of all the hospitals in the world 60 percent more nurses are badly needed
    4. D.
      nursing used to be a popular job among women

Memory, they say, is a matter of practice and exercise. If you have the wish and really made a conscious（自觉的）effort, then you can quite easily improve your ability to remember things. But even if you are successful, there are times when your memory seems to play tricks on you.
Sometimes you remember things that really did not happen. One morning last week, for example, I got up and found that I had left the front door unlocked all night, yet I clearly remember locking it carefully the night before.
Memory “trick” work the other way as well. Once in a while you remember not doing something, and then find out that you did. One day last month, for example, I was sitting in a barber（理发师）shop waiting for my turn to get a haircut, and suddenly I realized that I had got a haircut two days before at the barber shop across the street from my office.
We always seem to find something funny and amusing（有趣的）in incidents caused by people’s forgetfulness or absent-mindedness. Stories about absent-minded professors have been told for years, and we never got tired of hearing new ones. Unfortunately, however, absent-mindedness is not always funny. There are times when “trick” of our memory can cause us great trouble

  1. 1.

    If you want to have a good memory,

    1. A.
      you should force yourself to remember things
    2. B.
      you should make a conscious effort of practice and exercise
    3. C.
      you should never stop learning
    4. D.
      you should try hard to remember tings
  2. 2.

    Which of the following statements is true according to the passage?

    1. A.
      One night the writer forgot to lock the front door
    2. B.
      One night the writer forgot having locked the front door
    3. C.
      The writer remembered to lock the door
    4. D.
      the writer remembered unlocking the front door
  3. 3.

    In the passage, the writer seems to tell you

    1. A.
      forgetting things is serious and dangerous
    2. B.
      always forgetting things is understandable
    3. C.
      forgetting things at times is natural
    4. D.
      the way to protect yourself from memory “tricks”
  4. 4.

    The best title for this passage is

    1. A.
      How to Get a Good Memory
    2. B.
      “Tricks” Of Memory
    3. C.
      Forgetfulness and Absent-mindedness is Dangerous
    4. D.
      Get Rid of Absent-mindedness

The news that China bans time-travel TV dramas and movies got a lot of attention on the internet. Yet, time travel in China is a bit different from time travel in common sense．It is anything but science fiction and always goes backwards in time．There is minimum imagination involved--no ever-ending circles that mess up present and future, no advanced technology, no new social orders or new human forms from the twenty--whatever century, everything is a known historical fact when you travel through in China．
It is not even called time travel; rather the Chinese people refer it as time crossover．Time crossover has been an extremely popular theme for online novels for years(in fact , it is an indispensible part of China’s online culture), and didn’t get picked up by TV and the big screen until recent two years．Most of time-travel dramas and movies are adapted from popular online novels and like in other cases adaptations are never better than the original books．
The main plot of time-travel novels or TV dramas can be very well summarized in one sentence: from nobody to somebody．Time travel in China is more about escaping from the reality than about realizing wild dreams．
In China , there is no need of time machine either．People travel backwards in time via the possession of antiques presence at historical places of interest encounter of life-threatening accidents or simple a look into the mirror．Some time-travel novels even start with “I wanted to go back to history so much that one morning when I opened my eyes I was back．” Technology is not relevant at all．
Though China is not short of histories to go back to, people have their own preferences and it is pretty much a gender （性别）thing．If the main character is male then he usually goes back to special times in history when he is able to help build up or tear up a dynasty．A typical example is A Step Into the Past(寻秦记), the first time-travel TV drama in China, which tells the story of how a SWAT member helps to unite China and build up Qin Dynasty ．
On the other hand , female characters primarily go back to Qing Dynasty partly because Qing Dynasty has the most number of princes to fall in love with．Yongzheng Emperor is the favorite．As can be seen in Startling by Each Step（步步惊心）, a Qing time crossover classic, a girl goes back to Qing Dynasty and falls in love with Yongzheng Emperor and his brothers．

  1. 1.

    As for time travel in China, which of the following ideas does the writer agree to ?

    1. A.
      it is complicated and can be classified into science fiction
    2. B.
      it is often based on the familiar story in history
    3. C.
      it sometimes messes up the times and social orders
    4. D.
      it always occurs in any times but the time before
  2. 2.

    The writing purpose of this passage is to           

    1. A.
      analyze why the time -travel TV dramas are banned in China
    2. B.
      introduce the characteristics of the time-travel TV dramas in China
    3. C.
      show the difference between time travel in China and in other cultures
    4. D.
      advise people to watch the time-travel TV dramas in China
  3. 3.

    It can be inferred from the passage that          

    1. A.
      China now has banned any forms of productions about time travel
    2. B.
      adapted from online novels, time-travel TV and movie productions enjoy more praise
    3. C.
      the main character always follows a set pattern in the time-travel TV dramas in China
    4. D.
      all the time-travel productions are about heroes and their success
  4. 4.

    The news mentioned in the very beginning is intended to         

    1. A.
      prove author’s view
    2. B.
      introduce the topic
    3. C.
      give an example
    4. D.
      work as a topic sentence

Years ago a farmer owned land along the Atlantic. He constantly advertised for hired hands. Most people were not willing to work on farms along the Atlantic because they worried about the terrible storms that destroy buildings and crops. The farmer received a steady stream of refusals at the interview for a farmhand
Finally, a short, thin man approached the farmer. “Are you a good farmhand?” the farmer asked him.
“Well, I can sleep when the wind blows. ” answered the little man.
Although puzzled by this answer ，the farmer, desperate for help, hired him. The little man worked well around the farm ，busy from dawn to dusk, and the farmer felt satisfied with the man's work.
Then one night the wind howled loudly from offshore. Jumping out of bed，the farmer grabbed a lantern and rushed next door to the hired hand’s sleeping quarters. He shook the little man and yelled， “ Get up! A storm is coming! Tie things down before they are blown away! ”
The little man rolled over in bed and said firmly, “No sir. I told you, I can sleep when the wind blows. ”
Enraged (激怒）by the response, the farmer was tempted to fire  him on the spot ,Instead, he hurried outside to prepare for the storm. To his amazement，he discovered that all of the hay had been covered. The cows were in the bam，the chickens were in the coops，and the doors were barred The shutters were tightly secured. Everything was tied down, Nothing could be blown away.
The farmer then understood what his hired hand meant, so he also returned to his bed to sleep while the wind was still blowing

  1. 1.

    Why did the farmer constantly advertise for hired hands?

    1. A.
      Because he needed hired hands all. the year round
    2. B.
      Because there was too much work to do on the farm
    3. C.
      Because he could hardly hire a farmhand
    4. D.
      Because he offered poor conditions for the hired hands
  2. 2.

    The farmer felt amazed because _______

    1. A.
      the Little man was sleeping
    2. B.
      everything was in safety
    3. C.
      the wind was too strong
    4. D.
      he could not open the doors
  3. 3.

    What did the man mean by saying “I can sleep when the wind blows. ” ?

    1. A.
      He needed much sleep after working hard on the farm
    2. B.
      He was very brave and not afraid of wind
    3. C.
      He enjoyed sleeping when the wind blew
    4. D.
      He would get everything done before the wind blew
  4. 4.

    Which of the following  statements about the Little man is TRUE?

    1. A.
      He was not afraid of storms
    2. B.
      He was a heavy sleeper under any condition
    3. C.
      He was hard-working and devoted to his work
    4. D.
      He was fired shortly after he tied everything down

Our risk of cancer rises rapidly as we age. So it makes sense that the elderly should be routinely screened for new tumors (肿瘤) or doesn’t it?
While such tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly. With the percentage of people over age 65 expected to nearly double by 2050, it s important to weigh the health benefits of screening against the risks and costs of routine testing.
In many cases, screening can lead to additional examinations and operations to remove cancer, which can cause side effects, while the cancers themselves may be slow-growing and may not cause serious health problems in patients’ remaining years. But the message that everyone must screen for cancer has become so ingrained (根深蒂固的) that when health care experts recommended that women under 50 and over 74 stop screening for breast cancer, it caused a noisy reaction among doctors, patients and social groups.
It’s hard to uproot deeply-held beliefs about cancer screening with scientific data. Certainly, there are people over age 75 who have had cancers detected by routine screening, and gained several extra years of life because of treatment. And clearly, people over age 75 who have other risk factors for cancer, such as a family history or previous personal experience with the disease, should continue to get screened regularly. But for the rest, the risk of cancer, while increased at the end of life, must be balanced with other factors like remaining life expectancy.
A recent study suggests that doctors start to make more objective decisions about who will truly benefit from screening—especially considering the explosion of the elderly.
It’s not an easy calculation to make, but one that makes sense for patients. Dr. Otis Brawley said, “Many doctors are ordering these tests purely to cover themselves from medical disputes. We need to think about the wise use of health care, which means making some difficult decisions with elderly patients, and going against the misguided belief that when it comes to health care, more is always better.”

  1. 1.

    Routine cancer screening for the elderly people makes sense because ______

    1. A.
      it is believed to contribute to a long life
    2. B.
      it is part of their health care package
    3. C.
      they are more sensitive about the health
    4. D.
      they are in greater danger of tumor growth
  2. 2.

    How do some researchers now look at routine cancer screening for the elderly?

    1. A.
      It adds too much to their medical bills
    2. B.
      They are doubtful about necessity
    3. C.
      It helps increase their life expectancy
    4. D.
      They think it does more harm than good
  3. 3.

    What is the traditional view about women screening for breast cancer?

    1. A.
      It is a must for adult women
    2. B.
      It applies to women over 50
    3. C.
      It is intended for young women
    4. D.
      It doesn’t apply to women over
  4. 4.

    Why do many doctors advise routine screening for cancer?

    1. A.
      They want to take advantage of the medical care system
    2. B.
      They want to protect themselves against medical disputes
    3. C.
      They want data for medical research
    4. D.
      They want their patients to suffer less
  5. 5.

    What does the writer say is the general view about health care?

    1. A.
      Better care, longer life
    2. B.
      Prevention is better than cure
    3. C.
      Better early than late
    4. D.
      The more, the better

Sarah came running in saying, "Look what l found. " Over the top of the paper I was reading I saw a long object that made me jump. It was a piece of snakeskin that had been shed （脱皮)  by one of our garden snakes.
'Isn't it beautiful?" said my wide-eyed 7~year-old daughter. I stared at the organic wrapper and thought to myself that it really was not that beautiful, but I did not want to disappoint Sarah.  Everything children see for the first time is elementary to their sense of beauty and creativity. They see only merit (忧点) and excellence in the world.
"Why does it do this?" Sarah asked. I like to teach my children that there is something else going on besides what they see in front of them. "Snakes shed their skin because they need to renew themselves," I explained.
"Why do they need to renew themselves?" Sarah asked. "We often need to shed our skins, those coatings that we cover ourselves with," I said to my now absorbed daughter. "We outgrow some things and find other stuff unnecessary. This snake no longer needs this skin.  It is probably too old, and the snake probably doesn't think it looks as smart in the skin as it once did.  Like buying a new suit. "
Of course, I'm sure this explanation won't suit naturalists. But Sarah got the point. As we talked, I knew that she began to understand that renewal is part of progress; that we need to take a good look at ourselves, and rooms and schoolwork and creativity, and she began to see what we need to keep and what need to cast off.  I was careful to point out that this is a natural process, not one to be forced.
"Snakes don't peel off their skin when they feel like it," I explained.  "lt happens as part of their growth. "
"I see, Dad. " said Sarah.  She then jumped off my lap, grabbed the snakeskin, and ran off.
I hoped she would remember this. Often, in order to find our real selves underneath the layers of community and culture we are cloaked (掩饰) in year after year, we need to start examining these layers. We need to gently peel some away, as we recognize them to be worthless, unnecessary, or flawed (有缺陷的);  or at best,  remember the things we discard（丢掉）to teach us how we can improve

  1. 1.

    When Sarah asked the author whether the snakeskin was beautiful,___________

    1. A.
      he was shocked and jumped
    2. B.
      he tried to understand her point of view
    3. C.
      he thought that telling the truth was a merit
    4. D.
      he decided to teach her something about the garden
  2. 2.

    How did Sarah feel about the author's explanation?

    1. A.
      Confused
    2. B.
      Boreci
    3. C.
      Satisfied
    4. D.
      Excited
  3. 3.

    Which of the following would the author agree with?

    1. A.
      By reflecting on ourselves, we can better ourselves
    2. B.
      It is necessary to force others to remove some things
    3. C.
      The community and culture force us to change
    4. D.
      It is natural to keep some old clothes
  4. 4.

    From the text, we can conclude that the author___________

    1. A.
      does not like nature much
    2. B.
      takes the chilcl's feelings lightly
    3. C.
      is both a logical and thoughtful person
    4. D.
      loves to see his daughter excited about animals
  5. 5.

    Which of the following could be the best title for the article?

    1. A.
      The things we should cast off
    2. B.
      A shed snakeskin in Sarah's eyes
    3. C.
      A natural part of our growth
    4. D.
      Renewal for snakes and us

I got interested in the idea of standing desks about a year ago. The health advantages of standing instead of sitting for eight hours a day are clear, so when the company Ergotron invited me to review their WorkFit C-Mod Dual Desk, I jumped out of my chair---really.
After several hours putting the desk together, I finally got to try it out. The standing desk had a desktop that I could use for writing.
At first I absolutely loved it. Standing during the day instead of sitting was fantastic. Although I felt more tired after all that standing during the day, I knew the health benefits were worth the slight discomfort. However, after the initial novelty (新奇)of the desk wore off, I realized that I could not use it in the long term.
It was just not practical. While using the desk for a month , I could definitely foresee problems arising from using it full time.
I enjoy having a lot of things on my desk. The standing desk just did not have enough room for all of my things.
I can easily foresee awkward situations when I put that desk in an office space. When someone comes into your office, does your guest have to stand as well? If you office is big enough, maybe you have room for two chairs for you and a visitor, which is great. Yet for the ordinary worker in a small office, the standing desk creates a very awkward situation.
Additionally, the amount of money I would have to spend to replace my current workspace with a standing desk was another issue. The desks I have looked at were highly expensive.
Yes, spending the day standing can offset(抵消) many of the negative effects of too much sitting, but we humans are designed for movement. Through activity changes like taking the stairs instead of the elevator, you can easily increase the time you spend on your feet. Best of all, those options are completely free

  1. 1.

    When the author was asked to try the standing desk out, he was ____

    1. A.
      excited
    2. B.
      surprised
    3. C.
      unhappy
    4. D.
      uninterested
  2. 2.

    When first using the standing desk, the author ___

    1. A.
      thought it was boring
    2. B.
      thought it was wonderful
    3. C.
      felt less tired than usual
    4. D.
      felt quite uncomfortable
  3. 3.

    According to the author, a standing desk ____

    1. A.
      takes up too much space
    2. B.
      is suitable for long-term use
    3. C.
      is cheaper than traditional desks
    4. D.
      is impractical though good for health
  4. 4.

    What does the author mainly tell us in the text?

    1. A.
      How to use the standing desk
    2. B.
      What he does during the workday
    3. C.
      His opinion on the standing desk
    4. D.
      The advantage of the standing desk
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