Reading Comprehension

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A BIT ABOUT BICYCLES
Today, bicycles are so common that it's hard to believe they haven't always been around. But two hundred years ago, bicycles didn't even exist, and the first bicycle, invented in Germany in 1818, was nothing like our bicycles today. It was made of wood and didn't even have pedals. Since then, however, numerous innovations and improvements in design have made the bicycle one of the most popular means of recreation and transportation around the world. In 1839, Kirkpatrick Macmillan, a Scottish blacksmith, dramatically improved upon the original bicycle design. Macmillan's machine had tires with iron rims to keep them from getting worn down. He also used foot-operated cranks like pedals, so his bicycle could be ridden at a quick pace. It didn't look much like a modern bicycle, though, because its back wheel was substantially larger than its front wheel. In 1861, the French Michaux brothers took the evolution of the bicycle a step further by inventing an improved crank mechanism. Ten years later, James Starley, an English inventor, revolutionized bicycle design. He made the front wheel many times larger than the back wheel, put a gear on the pedals to make the bicycle more efficient, and lightened the wheels by using wire spokes. Although this bicycle was much lighter and less tiring to ride, it was still clumsy, extremely top heavy, and ridden mostly for entertainment. It wasn't until 1874 that the first truly modern bicycle appeared on the scene. (14) Invented by another Englishman, H.J. Lawson, the "safety bicycle" would look familiar to today's cyclists. This bicycle had equal-sized wheels, which made it less prone to toppling over. Lawson also attached a chain to the pedals to drive the rear wheel. With these improvements, the bicycle became extremely popular and useful for transportation. Today they are built, used, and enjoyed all over the world.

What has been added to the basic design of the bicycle?

  • A. Gears and hand-operated brakes
  • B. Electric motors and GPS systems
  • C. Air conditioning and heated seats
  • D. Folding frames and built-in speakers
Correct Answer: A

Rationale: The correct answer is A: Gears and hand-operated brakes. Over the years, the basic design of the bicycle has evolved through various innovations and improvements. Gears and hand-operated brakes were added to enhance the efficiency, speed, and safety of bicycles. These additions have significantly contributed to making bicycles more versatile and practical for both recreation and transportation purposes. Electric motors and GPS systems, air conditioning and heated seats, as well as folding frames and built-in speakers are not traditional features found in the basic design of bicycles.

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The Rainforest: The Amazon River Basin is home to the largest rainforest on Earth. The basin—roughly the size of the forty-eight contiguous United States—covers some 40% of the South American continent, and portions of eight countries. The basin is drained by the Amazon River, the world’s largest river in terms of discharge, and the second longest river in the world after the Nile.
Since 1970, over 600,000 square kilometers (232,000 square miles) of Amazon rainforest have been destroyed. This deforestation is mainly due to land clearing for pastureland by commercial and speculative interests, misguided government policies, and commercial exploitation of forest resources.
Deforestation of the rainforest has long-term implications. The loss of habitat for many creatures ensures their extinction. The loss of vegetation depletes the oxygen in the atmosphere, which some say causes global warming.

What statement is implied by the paragraph?

  • A. Much needed pasture and farmland can be obtained by clearing the land.
  • B. People should leave the rainforest alone to evolve.
  • C. Deforestation has long-term consequences we still do not know about.
  • D. Deforestation of the Amazon rainforest is a consequence of progress.
Correct Answer: C

Rationale: The correct answer is C: Deforestation has long-term consequences we still do not know about.

Rationale:
1. The paragraph discusses the destruction of the Amazon rainforest and highlights the long-term implications of deforestation.
2. It mentions the loss of habitat for creatures leading to extinction and the depletion of oxygen causing global warming.
3. The statement implies that there are ongoing and potentially unknown consequences of deforestation.
4. Choice A is incorrect as it focuses on the immediate benefits of clearing land for pasture, ignoring the long-term consequences discussed.
5. Choice B is too simplistic and does not address the complexity of the issue as presented in the paragraph.
6. Choice D is also incorrect as it oversimplifies the issue by associating deforestation solely with progress without considering the negative impacts discussed.

Blood Pressure
Lub-dub! Lub-dub! Lub-dub! This sound is made by the rapid contracting and extending of the chamber doors on the inside of the heart. This ventricular contracting injects roughly 70 mL of blood into a vascular system with a given volume at differing pressure. Blood pressure refers to the pressure in the arterial system; and it is typically taken in the brachial artery of the arm because the pressure at different places along the circulatory route is different. Blood pressure is simply the force that the blood exerts in all directions within any given area and is the basis for the movement of blood from the heart, through the body, and back to the heart. This pressure is commonly expressed as a ratio of the systolic pressure over the diastolic pressure. The systolic pressure or “high peak” pressure takes place within the arterial system as ventricles contract and force blood into the arteries. The diastolic pressure or “low peak” pressure takes place within this arterial system just before the next ventricular contraction. An increase in blood pressure can occur if the arterial walls lose some of their elasticity with age or disease.

Which is the best summary of this passage?

  • A. The heart pumps roughly 70 mL of blood by rapidly contracting and extending the chamber doors of the heart. Disease and age affect the pressure of blood on arterial walls.
  • B. The brachial artery of the arm is usually used to take blood pressure, although the pressure is different in different parts of the body.
  • C. The measurement of the ratio of systolic pressure over the diastolic pressure is known as blood pressure.
  • D. The force that blood exerts on arterial walls is known as blood pressure and is measured as a ratio of the systolic pressure or "high peak" over the diastolic pressure or "low peak"
Correct Answer: D

Rationale: The correct summary of the passage is that blood pressure is the force exerted by blood on arterial walls, measured as a ratio of systolic pressure over diastolic pressure. This summary encapsulates the key points discussed in the passage, including the definition of blood pressure, its measurement, and the role of systolic and diastolic pressures. The other options either focus on specific details or do not encompass the main concept of blood pressure as explained in the passage.

About 6% of the earth is covered by rainforests. The largest rainforest in the world is the
Amazon Basin, which stretches over 2.3 million square miles in nine different South American countries. This area is double the length of all the other remaining rainforests in the world. Brazil contains 60%of the Amazonian rainforest, since it lies at the mouth of the river Amazon. This river is the second largest in the world and contains more than one-fifth oftheworldĆ¢ā‚¬ā„¢sfresh water. The Amazon rainforest is a type of wet broadleaf forest. The weather there is very humid and warm as it rains quite a bit. Because of the high rainfall, the forest is very rich and green. The
tree leaves are pointed and narrow so that the raindrops can easily drop off wet plants. This
tropical rainforest has more living species than the entire European continent. There are over 400 types of insects living in one single rain forest tree for a total of 2.5 million species. One square kilometer of rainforest may contain over 75,000 types of trees and approximately 438,000
different kinds of plants, which comes to a total of 90,000 tons of greenery overall. The Amazon rainforest is home to 2,000 birds and mammals, with one in every five birds in the world living there. Local farmers have lived off this rich and diverse land for thousands of years. They have been able to find food and water here without destroying the land. The Kayapo people of Brazil
farm in an environmentally-friendly way. Instead of chemicals, they use burned wood to enrich the soil, and plant banana trees, which attract wasps. These wasps then feed on leafcutter ants and get rid of these harmful insects. The rainforest also offers a lot of tropical fruits, such as bananas and coconuts, as food.
Cinnamon is made from the bark of a rainforest tree. Amazonian Indians use the fruit and stem
of the Buruti plant as a drink, to make bread and to build houses. Many other plants are used as medicine. But the Amazon rainforest is in very big danger of disappearing. 9,169 square miles of
forest have been cut down in 2003 in Brazil alone. An area of the size of a football field is burned down basically every minute, which means that the rain forest may be gone by the year 2030.The dangers related to this type of activity are obvious. Trees take in poisonous carbon
dioxide from the air and give off oxygen. There is more oxygen and less carbon dioxide around a
rainforest. When trees are cut down, however, the amount of carbon dioxide increases, and the
air gets warmer. This leads to global warming, which is extremely harmful to the environment. It
is estimated that the burning of Brazilian rainforests alone produces 200 million metric tons of carbon dioxide ayear. Another danger connected with destroying the rainforest is the disappearance of plants and animals. When trees are cut down, plants and animals have no more
food left and slowly die out. Killing wild animals is illegal in Brazil, but there is plenty of stealing going on. 38 million animals are stolen and sold illegally each year. The most hunted
animals are birds, especially parrots, followed by snakes and the jaguar.

What does the sentence 'people of Brazil farm in an environmentally friendly way' mean in paragraph 3?

  • A. They do not poison the soil when farming.
  • B. They use natural chemicals to enrich the soil.
  • C. They plant and preserve banana trees.
  • D. They do not kill insects even if they are harmful.
Correct Answer: A

Rationale: The correct answer is A: 'They do not poison the soil when farming.' The statement in the paragraph refers to the environmentally friendly farming practices of the Kayapo people in Brazil. Instead of using harmful chemicals, they opt for burned wood to enrich the soil. This sustainable approach helps maintain the fertility of the land without causing harm to the environment. It highlights their conscious effort to farm in a way that is beneficial and sustainable for the ecosystem, emphasizing the importance of preserving the environment while meeting their agricultural needs.

Have you ever found yourself staring at the ceiling at 2:00 a.m.? Have you kicked the blankets off to the floor from tossing and turning? Many longtime suffers of Insomnia know these situations all too well. As many as 17% of Americans find the restful break of sleep hard to achieve.

Lack of sleep affects intellectual abilities at work or school by causing a deficit in memory, attention, and concentration which in turn creates a feeling of irritation or depression. Chronic insomnia can result from a medical illness, a psychiatric condition, or from sleep apnea, a condition where an individual actually stops breathing during sleep. Sleep hygiene, developing good sleep habits, and non- pharmacological therapies such as herbs and spices are some solutions to Insomnia.

What is stated in the passage?

  • A. Physical illness can cause insomnia.
  • B. Exercise improves sleep quality.
  • C. Healthy diet prevents sleep disorders.
  • D. Insomnia is always caused by stress.
Correct Answer: A

Rationale: The correct statement found in the passage is that physical illness can cause insomnia. The passage mentions that chronic insomnia can result from a medical illness, a psychiatric condition, or from sleep apnea, a condition where an individual stops breathing during sleep. This indicates a direct link between physical health issues and the development of insomnia. While exercise, healthy diet, and stress can also impact sleep quality, the passage emphasizes the connection between physical illnesses and insomnia.

Food

Food and drink are necessary and desirable, but their abuse can cause serious physical and mental problems. Many physicians believe that overeating is one of the countryā€™s main health problems, since It places a great strain on the heart, can lead to diabetes, and often shortens the individual's life span. To fill an emotional void, people often turn to food when they are bored or lonely.
Another area of concern is alcohol consumption. The results of alcohol abuse are widely publicized. The social drinker who becomes alcoholic, the drunken drivers contribution to highway deaths, spousal and child abuse, are all concomitant problems associated with alcohol abuse.

The information presented in this article is

  • A. unbiased in its approach.
  • B. against eating rich foods.
  • C. against eating and drinking.
  • D. against drinking alcohol.
Correct Answer: A

Rationale: The passage provides an overview of the potential problems associated with the abuse of food and alcohol without explicitly condemning all eating or drinking. It discusses the consequences of overeating and alcohol abuse while acknowledging that food and drink are necessary and desirable. Thus, the information is presented in an informative and balanced manner, making A the correct answer, as it indicates that the article is unbiased in its approach.

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