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.