Imagine your body is like the house you live in. Every day, your family creates rubbish. The rubbish builds up until it is put out for the weekly garbage collection. Now, say you put three bags of garbage out, but because one of the collectors was away sick, only two bags are collected. You take the leftover bag inside to be put out again next week. The following week you put on another three bags, plus the leftover bag from last week. But again, only two bags are collected. Imagine this cycle is repeated over the following weeks. This is a simple description of what happens to your body when your kidneys   don't work efficiently. Your body is not thoroughly emptied of waste products. Other areas of the body such as blood pressure and red blood cell production are affected and the _ process that may lead to kidney failure begins. It's not uncommon for people to lose up to 90% of their kidney function before developing any symptoms. There may be no warning signs. This makes early detection   difficult. Kidney's main job is to remove toxins   and unwanted water from our blood. Every day our kidneys clean an average of 200 litres of blood. Kidney failure may be a gradual and silent process, going unnoticed because there is no apparent pain. Research shows that more than 25% of the patients requiring dialysis   do not see a kidney specialist before they have to do so. Some risk factors for kidney disease such as age and genetic make up are out of our control; however, some changes in lifestyle may help prevent kidney damage.Two major risk factors for kidney disease, diabetes   and high blood pressure, have been on the rise over the last few decades.Both conditions are chiefly affected by being overweight and not getting enough exercises, which are the potential risk factors for the kidney disease. Which of the following helps prevent kidney damage most effectively? A) Go to see a kidney specialist shortly before dialysis starts. B) Take enough exercise and make early detection of kidney disease. C) Try to keep low blood pressure and a stable lifestyle. D) Go to hospital whenever you find any warning signs.
B
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Do you want to live with a strong sense of peacefulness, happiness, goodness, and self- respect? The collection of happiness actions broadly categorized as "honor" help you create this life of good feelings. Here's an example to show how honorable actions create happiness. Say a store clerk fails to charge us for an item. If we keep silent, and profit from the clerk's mistake, we would drive home with a sense of sneaky excitement. Later we might tell our family or friends about our good fortune. On the other hand, if we tell the clerk about the uncharged item, the clerk would be grateful and thank us for our honesty. We would leave the store with a quiet sense of honor that we might never share with another soul. Then, what is it to do with our sense of happiness? In the first case, where we don't tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. In the process, we would lose some peace of mind and self-respect. We would also demonstrate that we cannot be trusted, since we advertise our dishonor by telling our family and friends. We damage our own reputations by telling others. In contrast, bringing the error to the clerk's attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased. Whenever we take honorable action we gain the deep internal rewards of goodness and a sense of nobility. There is a beautiful positive cycle that is created by living a life of honorable actions. Honorable thoughts lead to honorable actions. Honorable actions lead us to a happier existence. And it's easy to think and act honorably again when we're happy. While the positive cycle can be difficult to start, once it's started, it's easy to continue. Keeping on doing good deeds brings us peace of mind, which is important for our happiness. According to the passage, the positive action in the example contributes to our   _  . A) self-respect B) financial rewards C) advertising ability D) friendly relationship
A
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Robert Spring, a 19 century forger ,was so good at his profession that he was able to make his living for 15 years by selling false signatures of Americans. Spring was born in England in 1813 and arrived in Philadelphia in 1858 to open a bookstore. At first he became rich by selling his small but real collection of early U.S. autographs . Discovering his ability at copying handwriting, he began imitating signatures of George. Washington and Ben Franklin and writing them on the title pages of old books. To lessen the chance of detection , he sent his forgeries to England and Canada for sale. Forgers have a hard time selling their products. A forger can't deal with a respectable buyer but people who don't have much knowledge in the field. Forgers have many ways to make their work look real. For example, they buy old books to use the aged paper of the title page, and they can treat paper and ink with chemical. In Spring's time right after the Civil War, Britain was still fond of the Southern states, so Spring invented a respectable maiden lady known as Miss Fanny Jackson, the only daughter of General "Stonewall" Jackson. For several years Miss Fanny's financial problems forced her to sell a great number of letters and manuscripts . Spring had to work very hard to satisfy the demand. All this activity did not prevent Spring from dying in poverty, leaving sharp-eyed experts the difficult task of separating his forgeries from the originals. According to the passage, forgeries are usually sold to    _ A) sharp-eyed experts B) persons who aren't experts C) book dealers D) owners of old books
B
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Father was in the army all through the First World War, so up to the age of five, I never saw much of him, and what I saw did not worry me. Sometimes I woke and there was a big figure   looking down at me. Sometimes in the early morning I heard the closing of the front door and the sound of shoes walking down. These were father's entrances and exits. Each time he went away, he left me lots of presents--model tanks, knives and all sorts of military   equipment which he put in a long box. When he was not there, mother let me get a chair and search through his treasures. She did not seem to think so highly of them as he did.     The war was the most peaceful period of my life. Every morning I awoke as soon as it was light and felt myself to be like the sun. Life never seemed so simple and clear and full of possibilities as then. I got up, went into mother's room and climbed into the big bed. She woke and I began to tell her of my plans. I talked but then fell asleep and woke again only when I heard her below in the kitchen, making the breakfast.     I often wondered what mother and I should do all day and what present I would get for Christmas. There was that little problem of the baby, for example. Mother and I could never agree about that. Ours was the only house in the street without a new baby, and mother said we could not buy one until father came back from the war as they were very expensive. That showed how simple she was. The Geneys who lived nearby had a baby, and everybody knew that they had hardly any money at all. Maybe it was a cheap baby, and mother wanted something really good, but I felt this did not really matter. The Geneys' baby would have been fine for us. What happened as soon as he writer got into his mother's bed? A) She went to make breakfast. B) He told her all his plans. C) She asked him about his plans D) He went to sleep

B
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