5th box -Flashcards

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1. lesson16

Protecting Our Health Pick an apple, a tomato, a peach-no worms in the harvest. We are familiar with the abundant use of pesticides by farmers, but today's chemists are becoming uneasy. They calculate that there are 45,000 different pesticides, and all of them can be absorbed by the fruit on which they are sprayed. The chemists estimate that every morsel we eat in the future may contain a deadly quota of pesticide. The tragedy* will come slowly but the threat is real. These government chemists do not suggest that we ban pesticides. They are cautious* and do not easily panic. What is needed, they say, are appropriate, budgeted* doses that will not pollute* our food.
--The Health of Your Car-- The newest approach to automobile repair is the clinic, a place where car doctors go over an automobile in an attempt to detect defects. Since the clinic does no repairs, its employees do not neglect the truth. So many automobile owners feel that mechanics deceive them that the clinics, even though they undoubtedly charge high fees, are quite popular. The experts do a thorough job for each client. They explore* every part of the engine, body, and brakes; they do all kinds of tests with expensive* machines. Best of all, the comprehensive examination takes only about half an hour. With the clinic's report in your hand no mechanic will be able to defraud you by telling you that you need major repairs when only a small repair is necessary.
Flying Saucers Again Whenever journalists face a news famine they revive the undeniably* interesting question: How can we explain UFOs-unidentified flying objects? The story usually commences with a description of the object by some observant night watchman who doesn't hesitate* to identify the object as having migrated from outer space. The vessel, he persists, appeared over the hazy lake at about 30 feet. A greenish gleam prohibited* him from seeing its exact shape, he admits. Newspaper editors love these stories because they keep the population* interested in knowledge about UFOs and keep them buying newspapers.
A Valuable Discovery The laser is a marvelous device that sends out a slender, concentrated beam of light, a light that surpasses the light at the sun's surface. So vast is the laser beam's power that it has without a doubt the capacity to vaporize* any substance located anywhere on earth. The laser can penetrate steel, pierce a diamond, or make an accurate die for wire so thin that it can be seen only with a microscope.Grateful eye surgeons report that they have used laser beams to repair the retinas in some fortunate* patients by creating tiny scars that joined the retina to the eyeball. Pioneering* medical men are making cautious exploration* into cancer cures with the laser, confident that they will alter* the course of this brutal* disease.

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