Reading for Understanding Two #92B

Thelma Thurstone The McGraw-Hill Companies, Inc.

  1. The digestion of carbohydrate foods starts in the mouth under the influence of an enzyme called ptyalin. Cold liquids and acid retard the digestion of carbohydrates. During the mastication of such foods, it is best not to
  2. Your answer:
    eat much.
    chew rapidly.
    drink ice water.
    stop digestion.

  3. The baby hippopotamus lay in the black, sticky mud. It was really a fat little animal whose head was just as wide as its body; in fact, it resembled a sausage. The baby hippo had only a crease to show
  4. Your answer:
    how much weight it had gained.
    where its mother had licked it clean.
    how far the mud covered it.
    where its neck should be.

  5. Water is said to be hard if it contains calcium and magnesium salts. A sodium salt of an organic acid, combined with glycerin amd fats, forms the usual soap. When this soap is placed in hard water, the sodium salt reacts with the soluble calcium and magnesium salts, forming insoluble calcium and magnesium salts. Before the salt can form a lather, there must be enough of the sodium salt present to precipitate, and so remove, all of the calcium and magnesium from the water. Many commercial water softeners work by
  6. Your answer:
    decreasing sodium salts in the water.
    increasing sodium salts in the water.
    increasing glycerin and fats in the soap.
    increasing calcium and magnesium in the water.

  7. Constructive reading involves reacting and adjusting to what you are reading. Do not accept everything you read blindly, but do not be so critical as to reject the author's ideas just because they are different from your own. Weigh what you read in terms of the logic and evidence supporting it. Base your acceptance or rejection of the author's ideas on the
  8. Your answer:
    rationality of the ideas.
    author's reputation.
    author's training.
    critics' reviews.

  9. People have not always used an alphabet, or letters, for their writing. Cave dwellers drew pictures on the walls of the caves in which they lived, and from these pictures we can learn much about human life before writing was invented. The alphabets of various countries have changed through the ages. We find our present alphabet very useful, but it is not perfect. We may still expect
  10. Your answer:
    that people's handwriting will improve.
    gradual changes in our letters.
    new inventions in grammar.
    a less phonetic language.

  11. Responsible citizens take an active interest in government at all its levels. In order to vote intelligently in elections, citizens need to read widely about both sides of a question before making up their minds. It is hard to be a good citizen unless you are an active
  12. Your answer:

  13. An acre is a measure of land that is equal to 4046.9 square meters, a very precise definition. An acre was originally the area a yoke of oxen could cultivate in a day, an amount that was
  14. Your answer:

  15. The period of time known to human history is short in comparison with the period of time known to geology. The former is expressed in thousands of years, and the latter in hundreds of millions of years. To the geologist, a thousand years is
  16. Your answer:
    a geological age.
    a brief span.
    an endless time.

  17. No connoisseur of folk songs would confuse a Gaelic folk song of Scotland or Ireland with a French chanson, or a German lied with an Italian romanza. A nation possessing a distinct individuality will create songs that
  18. Your answer:
    are rarely known by the inhabitants of the country.
    resemble very closely song forms of other countries.
    are difficult to recognize as belonging to it.
    differ markedly from those of other countries.

  19. Individuals who contract a contagious disease after casual exposure to this disease are said to have low resistance. Others have high resistance and can safely have
  20. Your answer:
    recurrent attacks of the disease.
    vaccinations to prevent the disease.
    fluctuating resistance to the disease.
    direct contact with the disease.

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