Paragraph 7: About 90 percent of modern humans are right-handed: we are the
only mammal with a preferential use of one hand. The part of the brain
responsible for fine control and movement is located in the left cerebral
hemisphere, and the findings above suggest that the human brain was already
asymmetrical in its structure and function not long after 2 million years ago.
Among Neanderthalers of 70,000–35,000 years ago, Marcellin Boule noted that the
La Chapelle-aux-Saints individual had a left hemisphere slightly bigger than the
right, and the same was found for brains of specimens from Neanderthal,
Gibraltar, and La Quina.
What is the author’s primary purpose in paragraph 7?
(A) To illustrate the importance of studying the brain
(B) To demonstrate that human beings are the only mammal to desire fine
control of movement
(C) To contrast the functions of the two hemispheres of the brain
(D) To demonstrate that right-hand preference has existed for a long time
Paragraph 6: Moreover, getting petroleum out of the ground and from under the
sea and to the consumer can create environmental problems anywhere along the
line. Pipelines carrying oil can be broken by faults or landslides, causing
serious oil spills. Spillage from huge oil-carrying cargo ships, called tankers,
involved in collisions or accidental groundings (such as the one off Alaska in
1989) can create oil slicks at sea. Offshore platforms may also lose oil,
creating oil slicks that drift ashore and foul the beaches, harming the
environment. Sometimes, the ground at an oil field may subside as oil is
removed. The Wilmington field near Long Beach, California, has subsided nine
meters in 50 years; protective barriers have had to be built to prevent seawater
from flooding the area. Finally, the refining and burning of petroleum and its
products can cause air pollution. Advancing technology and strict laws, however,
are helping control some of these adverse environmental
In paragraph 6, the author’s primary purpose is to
(A)provide examples of how oil exploration can endanger the environment
(B)describe accidents that have occurred when oil activities were in
(C)give an analysis of the effects of oil spills on the environment
(D)explain how technology and legislation help reduce oil spills
Paragraph 5: In addition to exploring the possible antecedents of theater,
scholars have also theorized about the motives that led people to develop
theater. Why did theater develop, and why was it valued after it ceased to
fulfill the function of ritual? Most answers fall back on the theories about the
human mind and basic human needs. One, set forth by Aristotle in the fourth
century B.C., sees humans as naturally imitative—as taking pleasure in imitating
persons, things, and actions and in seeing such imitations. Another, advanced in
the twentieth century, suggests that humans have a gift for fantasy, through
which they seek to reshape reality into more satisfying forms than those
encountered in daily life. Thus, fantasy or fiction (of which drama is one form)
permits people to objectify their anxieties and fears, confront them, and
fulfill their hopes in fiction if not fact. The theater, then, is one tool
whereby people define and understand their world or escape from unpleasant
Which of the following best describes the organization of paragraph 5?
(A)The author presents two theories for a historical phenomenon.
(B)The author argues against theories expressed earlier in the passage.
(C)The author argues for replacing older theories with a new one.
(D)The author points out problems with two popular theories.