Evolution of the CDC:
The Centers for Disease Control and Prevention (CDC) started in 1946 as the Communicable Disease Center (CDC). Its original goal was to stop malaria in the United States. From a small office in Atlanta, health workers spread out over the South, spraying mosquitoes and using shovels to eliminate low spots of standing water. At that time, most of the CDC’s workers were not doctors; the need was for entomologists and engineers. The founder of the CDC, Dr. Joseph Mountin, enlarged the organization’s mission to fight communicable diseases of all kinds, and over the next 20 years, the CDC would focus on smallpox, measles, and polio.
In 1970, the name was changed to the Center for Disease Control, but the mission continued to expand. By 1980, the CDC was working not only on the eradication of existing diseases but also on disease prevention. By this point, it had hundreds of doctors and researchers looking into health problems such as depression and addiction. The name changed again, to the Centers for Disease Control and Prevention. Today, the CDC has thousands of employees and coordinates research activities with public health agencies worldwide. It is especially known for its work to protect people from epidemics and unexpected health threats, but its everyday work in the areas of environmental health, injury prevention, birth defects, healthy schools and workplaces, and health education is just as important and beneficial to all Americans.
What is the overall tone of the essay about A Short History of the CDC?
- A. Appreciative.
- B. Awestruck.
- C. Somber.
- D. Disheartened.
Correct Answer: A
Rationale: The tone is appreciative of the work and impact of the CDC over time.
You may also like to solve these questions
HYPERTENSION:
The term hypertension is used to describe the condition of chronically high blood pressure. People who are obese, experience a lot of stress, smoke tobacco products, have a diet with too much salt in it, or have diabetes are often at a higher risk for hypertension. As well, African Americans are more likely to have hypertension than other population groups.
Hypertension often develops over many years. Older people are most often diagnosed with hypertension. One reason for this is that blood vessels lose elasticity and stiffen as a person ages. This creates more resistance to the blood flowing through the body and elevates blood pressure.
Symptoms of hypertension can include blurred vision, headaches, a buzzing in the ears, fatigue, an irregular heartbeat, and nosebleeds. Hypertension that goes untreated over a period of time can lead to serious complications such as kidney disease, heart disease, loss of vision, heart attack, brain damage, and even early death.
Fortunately, treating hypertension reduces blood pressure and can lower the risk of complications. For many people, losing weight can result in a significant decrease in blood pressure. For others, physicians may prescribe one or more medications to help bring blood pressure down into a safe range.
One thing is certain: physicians believe that people over the age of 20 should monitor their blood pressure by having it checked at least once a year. Those with a history of hypertension in the immediate family should have it checked more frequently.
Which of the following statements is an opinion related to Hypertension?
- A. Obese people are at risk for hypertension.
- B. Losing weight can decrease blood pressure.
- C. Older people must pay attention to their blood pressure.
- D. Blurred vision or dizziness may be a sign of hypertension.
Correct Answer: C
Rationale: A statement of fact can be proved or checked. A statement of opinion is what someone thinks or believes. In this case, statements A, B, and D could be proved scientifically, but statement C is simply a suggestion. While it is advisable for older people to monitor their blood pressure due to the increased risk associated with aging, the statement itself is an opinion because it suggests what older people 'must' do, which is a subjective viewpoint rather than a verifiable fact. Statements A, B, and D provide factual information supported by scientific evidence, making them statements of fact rather than opinion.
SUNLIGHT:
Most people are familiar with the damaging effects of the sun on unprotected skin, but not enough attention is paid to the many positive effects of receiving direct exposure to sunlight on a regular basis. The most compelling argument for increased exposure to sunlight is the need for vitamin D in the human body. Vitamin D is integral for maintaining healthy bones and preventing diseases like rickets and osteoporosis. It is synthesized by the skin when it comes into contact with the UVB rays found in sunlight. In order to ensure you are receiving the proper amount of vitamin D, it is recommended to get 15 minutes of direct exposure to sunlight at least two or three times a week. UVB rays are made less intense when passing through clouds and pollution, and they will not transmit through glass or sunscreen. UVB rays are also less effective the farther you are from the equator. People with darker skin require more exposure to the sun to receive the same amount of vitamin D.
In addition to vitamin D, sunlight will help regulate the circadian rhythms that ensure you get a good night’s sleep. Sunlight helps to prevent an overactive immune system, which may prove useful in preventing autoimmune diseases like psoriasis and lupus. Recent studies have even shown that sunlight can help lessen the symptoms of Alzheimer’s disease. The negative impacts of excess exposure to sunlight should not be ignored; cancers resulting from skin damage are a real concern that must be taken seriously. But the importance of vitamin D and the other positive impacts of sunlight make a compelling argument for making sure we are spending enough time every week in direct sunlight.
Identify the overall tone of the essay about Sunny-Side Up.
- A. Confused.
- B. Confident.
- C. Disheartened.
- D. Disapproving.
Correct Answer: B
Rationale: The tone of the essay is confident, as the author argues for the positive effects of sunlight.
Evolution of the CDC:
The Centers for Disease Control and Prevention (CDC) started in 1946 as the Communicable Disease Center (CDC). Its original goal was to stop malaria in the United States. From a small office in Atlanta, health workers spread out over the South, spraying mosquitoes and using shovels to eliminate low spots of standing water. At that time, most of the CDC’s workers were not doctors; the need was for entomologists and engineers. The founder of the CDC, Dr. Joseph Mountin, enlarged the organization’s mission to fight communicable diseases of all kinds, and over the next 20 years, the CDC would focus on smallpox, measles, and polio.
In 1970, the name was changed to the Center for Disease Control, but the mission continued to expand. By 1980, the CDC was working not only on the eradication of existing diseases but also on disease prevention. By this point, it had hundreds of doctors and researchers looking into health problems such as depression and addiction. The name changed again, to the Centers for Disease Control and Prevention. Today, the CDC has thousands of employees and coordinates research activities with public health agencies worldwide. It is especially known for its work to protect people from epidemics and unexpected health threats, but its everyday work in the areas of environmental health, injury prevention, birth defects, healthy schools and workplaces, and health education is just as important and beneficial to all Americans.
Which of the following is not listed as a detail in the passage about A Short History of the CDC?
- A. Where the organization began.
- B. Who first ran the organization.
- C. When the organization changed its name.
- D. What divisions make up the current CDC.
Correct Answer: D
Rationale: The passage does not mention the divisions that make up the current CDC.
YOGA:
Yoga is an exercise that everyone should try. Yoga was first practiced thousands of years ago. It helps connect the mind and body by taking a person through a series of poses while emphasizing controlled breathing and meditation.
Every year hundreds of thousands of people enjoy the benefits of yoga by treating the movements and postures as exercise. Yoga works by safely stretching muscles, ligaments, and tendons. This helps release the buildup of lactic acid in the muscles that can often cause stiffness, tension, and even pain. Yoga helps develop the body’s range of mobility and increases the ease of everyday movements. Many participants report improved flexibility, especially in the trunk and shoulders, after only two months of practice.
Yoga improves posture, balance, and sleep, and it also helps with weight control. Physically, many yoga poses help build upper-body strength, which is increasingly important as the body ages. Other poses help strengthen the muscles in the lower back, and when properly practiced, nearly all of the poses strengthen the body’s abdominal, or core, muscles. This helps improve the circulation of blood that increases the delivery of nutrients and oxygen to the body and also removes wastes produced by the body. When combined with yoga’s benefit of lowering a person’s heart rate, the result is increased cardiovascular endurance.
The University of Maryland School of Nursing recently published a study that showed yoga was especially effective at reducing stress. In addition, researchers found that yoga surpassed traditional aerobic exercise, often significantly, in improving flexibility, pain tolerance, and daily energy levels. One enthusiast says that her advice to skeptics is simple, “Take a deep breath, stretch, and indulge in a few poses. You’ll feel better.”
What is the author's primary purpose in writing this essay?
- A. To persuade
- B. To entertain
- C. To analyze
- D. To reflect
Correct Answer: A
Rationale: The author's attitude toward yoga seems to be positive and sincere.
Earnest (choice A) would be a good description of this tone.
SUPER FOODS:
Super foods are whole, unprocessed foods such as blueberries, walnuts, beans, oats, and broccoli. Spinach, yogurt, and pomegranates are also considered super foods. They are classified as such because they contain high levels of essential nutrients, are low in calories, and can often help prevent—and even reverse—some of the common effects of aging including cardiovascular disease, type 2 diabetes, high blood pressure, and certain types of cancer. Super foods help lower cholesterol levels in the blood and, some researchers believe, even improve a person’s mood.
High on the list of super foods are blueberries, fresh or frozen, which are loaded with vitamin C, antioxidants, and potassium. Blueberries are also an anti-inflammatory, which many researchers and nutritionists believe is beneficial. Lentils are a super food that helps prevent a spike in insulin levels that can increase body fat. Lentils are high in both fiber and protein, each of which contributes to stabilizing blood sugar levels and reducing excess fat, especially in the stomach area. Walnuts are a plant-based source of essential unsaturated omega-3 fatty acids, which can improve cholesterol and lower the risk of heart disease by as much as 50 percent.
All oats are healthful. Oats, even instant oatmeal, are digested slowly while providing up to five grams of fiber per serving. As physicians and nutritionists continue to study super foods and their effects, consumers continue to educate themselves about the variety of benefits. In an era when consumers question the origin and nutritional value of much of the food on store shelves, super foods are some of the most healthful and natural whole foods available.
Which of the following statements is an opinion related to Super Foods?
- A. Walnuts contain omega-3 fatty acids.
- B. Lentils are high in both protein and fiber.
- C. Pomegranates are delicious and healthful.
- D. Oats move slowly through the digestive tract.
Correct Answer: C
Rationale: This is an opinion because it is a subjective statement about taste.
Nokea