CHILDREN ENJOY TELLING AND LISTENING TO SHOSTS STORIES, ESPECIALLY...
40. Children enjoy telling and listening to shosts stories, especially on Halloween night.
A. ghosts stories
B. on Halloween night
C. Telling and listening
D. especially
Read the following passage and mark the letter A, B, C, or D on your answer sheet
to indicate the correct answer to each of the questions from 41 to 50
Recent
technological advances in manned and unmanned vehicles, along with breakthroughs in
satellite technology and computer equipment, have overcome some of the limitations of
divers and diving equipment for scientists doing research on the great oceans of the
world. Without a vehicle, divers often became sluggish, and
their
mental
concentration was severely limited. Because underea pressure affects their speech organs,
communication among divers has always been difficult or impossible. But today, most
oceanographers avoid the use of vulnerable human divers, preferring to reduce the risk to
human life and make direct obervations by means of instruments that are lowered into the
ocean, from samples take from the water, or from photographs made by orbiting
satellites. Direct observations of the ocean floor can be made not only by divers but also
by deep-diving submarines in the water and even by the technology of sophisticated
aerial photgraphy from vantage points above the surface of more than seven miles and
cruise at depths of fifteen thousand feet. In addition, radio-equipped buoys can be
operated by remote control in order to transmit information back to land-based
laboratories via satellite. Particularly important for ocean study are data about water
temperature, currents, and weather. Satellite photographs can show the distribution of sea
ice, oil slicks, and cloud formations over the ocean, Maps created from satellite pictures
can represent the temperature and the color of the ocean’s surface, enabling researchers to
study the ocean currents from laboratories on dry land. Furthermore, computers help
oceanographers to collect, organize, and analyze data from submarines and satellites. By
creating a model of the ocean’s movement and characteristics, scientists can predict the
patterns and possible effects of the ocean on the enviroment.
Recently, many oceanographers have been relying more on satellites and
computers than on research ships or even submarine vehicles because they can supply a
greater range of information more quickly and more effectively. Some of humankind’s
most serious problems, especially those concerning energy and food, may be solved with
the help of observations made possible by this new technology.