- There is a common belief that while the dog is man’s best friend, the coyote is his worst enemy. The bad reputation of the coyote traces back to his fondness for small animals; he hunts at night and is particularly destructive to sheep, young pigs, and poultry. Yet it is sometimes wise to encourage coyotes. Provided valuable farm animals are protected, the coyote will often free the property of other animals, like rabbits, which are ruinous to crops and certain trees. He is especially beneficial in keeping down the rodent population. Where coyotes have been allowed to do their work without molestation, ranchers and fruit growers have found them so valuable that they would no more shoot them than they would shoot their dogs.
Read the text and answer multiple-choice question by selecting the correct response. Only one response is correct.
What is the main idea contained in the above passage?
a. Under certain conditions, the coyote is helpful to man.
b. The coyote is feared because of his fondness for small animals
c. Modern ranchers would no sooner shoot coyotes than they would shoot dogs.
d. The coyote usually prefers rabbits and other rodents to sheep and poultry.
2. Before clocks were made, people kept track of time by other means. In ancient Egypt, people used a water clock. Water dripped slowly from one clay pot into another. People measured time according to how long it took one pot to empty and the other one to fill. Candle clocks were common during the Middle Ages. As such, when a candle burned, marks on its side showed about how much time had passed. A final ancient way to measure time was the sundial, which used the movement of the sun across the sky. The shadows moving across the face of the sundial showed the current time.What is the main idea?
a. As such, when a candle burned, marks on its side showed about how much time had passed.
b. Before clocks were made, people kept track by other means.
c. In ancient Egypt, people used water clock.
d. All of the above.
3. Caffeine is a natural ingredient in coffee, cocoa, tea, and chocolate, and is added to some prescription and non-prescription drugs. 2. Despite being “natural,” caffeine is also a powerful drug which greatly affects the body. 3. In healthy, rested people, a dose of 100 milligrams (about one cup of coffee) increases alertness, banishes drowsiness, quickens reaction time, it enhances intellectual and muscular effort, and increases heart and respiratory rates. 4. Drinking one to two cups of coffee an hour before exercise encourages the body to preserve glycogen and burn fat —–something that results in greater endurance. 5. In addition, caffeine masks fatigue. 6. In doses above 300 milligrams, caffeine can produce sleeplessness, nervousness, irritability, headaches, heart palpitations, and muscle twitches. 7. Caffeine is also habit-forming, and those who try to suddenly stop after heavy use may experience such withdrawal symptoms as headaches, lethargy, irritability, and difficulty in concentrating.The main idea of this passage is that caffeine.