Deal only with work involving drug control
are excluded from the task force assigned to drug control
work with those who are assigned to the task of drug control
are assigned all law enforcement tasks excluding that of drug control
18. Astronomers have recently gained new knowledge of the behavior of galaxies. It has been discovered that spiral galaxies sometimes collide with each other. The huge forces created in such a cosmic event can tug long trails of stars and create new ones from compressed gases. After repeated collisions, galaxies may eventually merge, forming a single elliptical shape. Our galaxy, the Milky Way, is on a collision course with the nearby Andromeda Galaxy. Hundreds of millions of years from now, these tow star systems may combine to form one giant configuration.
In stating that “the Milky Way is on a collision course” the author means that
the Milky Way is going to crash into our own galaxy
The Milky Way is heading toward the Andromeda Galaxy
the Milky Way is the result of an impact that created one giant configuration
the Milky Way will crash into two star systems in hundreds of millions of
years
19. Christmas Island, discovered by Captain James Cook on Christmas Eve in
1777, was once populated by a wide variety of bird species. In recent years, at
least 18 species of birds – a total of 17 million birds – have been observed to
leave or to perish on the island. It is suspected that the cause of the disappearance may be related to a cyclical weather phenomenon in the Pacific that alerts winds, salinity, and ocean currents. These variously repeating conditions have resulted in higher water temperatures, which may have caused the fish and squid that the birds live on to die.
In stating that “the cause of the disappearance may be related to a cyclical
weather phenomenon” the author means that the cause is related to
hurricanes and cyclones
Recurring climatic conditions
a succession of environmental patterns
a combination of wind, salt, and ocean currents
20. The historic centers of the American sister cities Savannah, Georgia, and
Charleston, South Carolina, have fortunately been saved from demolition or
neglect and now attract tourists eager to view the gracious old houses. Of particular interest for the visitor is the exquisite decorative ironwork found
throughout the older parts of both cities, especially on porch and stair railings
and banisters.
In stating that “The historic centers of the American sister cities… have fortunately been saved from demolition” the author means that the city centers
have
+been kept intact
remained neglected
been elegantly restored
saved the tourist industry
21. Differences in the way men and women process language is of special interest to brain researches. It has been known that aphasia – a kind of a speech disorder– is more common in men than in women when left side of the brain is
damaged in an accident or after a stroke. However, women are more likely
than men to suffer aphasia when the front part of the brain is damaged. This
clearly indicates that the brains of men and women are organized differently
in the way they process speech.
The word “they” in the passage refers to
men
women
Brains
researches
22. Traditionally, America’s fast-food companies have hired teenagers. While
teenagers provide cheap labor, they are sometimes unreliable. Consequently,
fast-food companies often use another source of cheap labor – the elderly.
Older people are less likely to skip a day work or quit without giving a notice,
but because they have not been brought up with computers, they view the
high-tech fast-food counter with terror. Training centers have opened in order
to teach “mature workers” how to operate computerized cash registers. These
students are put into classrooms with their peers and, since mental arithmetic
is a thing of the past, are taught how to use a calculator.
The phrase “These students” in the passage refers to
teenagers
fast-food employers
The elderly
peers
23. Complete the sentence by choosing the phrase or clause that would most
likely to complete it Children dress up in witches’ hats or ghost costumes to play pranks when celebrating the fun October holiday of Halloween. In contrast,
Thanksgiving is a traditional holiday
Thanksgiving is always celebrated on the fourth Thursday of November