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　　37.Which of the following sentences explains the primary goal of hormone replacement therapy?

　　These sentences are highlighted in the passage.

　　(A) The quantities and proportions of hormones produced change with age, so scientists have given a great deal of study to shifts in the endocrine system over time in the hopes of alleviating ailments associated with aging.

　　(B) A combination of estrogen and progesterone has been prescribed for decades to women who want to reduce mood swings, sudden changes in body temperature, and other discomforts caused by lower natural levels of those hormones as they enter middle age.

　　(C) HRT may also increase the likelihood that blood clots-dangerous because they could travel through the bloodstream and block major blood vessels-will form.

　　(D) Because of the complicated effects growth hormone has on the body, such treatments are generally restricted to children who would be pathologically small in stature without it.

　　38. Look at the four squares that indicate where the following sentence could be added to the passage.The body is a complex machine, however, and recent studies have called into question the wisdom of essentially trying to fool its systems into believing they aren't aging.Where would the sentence best fit?Click on a square to add the sentence to the passage.

　　39. Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not presented in the passage or are minor ideas in the passage. This question is worth 2 points.

　　The class of chemicals called hormones was discovered by two researchers studying a substance produced in the small intestine.

　　Answer Choices

　　The term hormone is based on a Greek word that means "to excite" or "to set in motion."Researchers are looking for ways to decrease the dangers of treatments with growth hormone so that more patients can benefit from it.

　　Hormones can be given artificially, but such treatments have risks and must be used carefully.Hormones can affect not only life processes such as growth but also behavior and emotion.

　　Scientists have discovered that not only the nervous system but also certain chemicals can affect bodily processes far from their points of origin.Hormone replacement therapy (HRT) may increase the risk of blood clots and heart disease in middle-age women.

　　Answer Keys

　　Reading:

　　27. B

　　28. A

　　29. D

　　30. C

　　31. D

　　32. C

　　33. B

　　34. D

　　35. A

　　36. D

　　37. A

　　38. third square

　　39.1) Scientists have discovered that not only the nervous system….

　　2) Hormones can affect not only life processes…..

　　3) Researchers are looking for ways to decrease the dangers of ….

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