王迈迈英语

57. The phrase “gives way to” in Paragraph 4 is closest in meaning to ________.

A. runs along                                 B. rubs against

C. turns into                                  D. floats on

58. The word “it” in Paragraph 4 refers to the _________.

A. mantle                                      B. core

C. change                                      D. depth

59. The inner core of the earth is NOT __________.

A. liquid                                        B. made of iron

C. solid                                         D. mixed with nickel

60. Why does the author state that the earth’s core is “more alien” than space?

A. Because government funds are not interested in the characteristics of the earth’s core.

B. Because scientists are not interested in the characteristics of the earth’s core.

C. Because the pressure and high temperature there prevent scientists from doing research.

D. Because the earth’s core is made of elements that are dangerous to humans.

Ⅵ. Directions: Passage 5 is taken from the TEXTBOOK. Read the passage carefully and choose the best answer. Write the corresponding letter of the answer on your ANSWER SHEET. (10 points, 1 points for each)

Passage 5

1. In spite of the difficulties of predicting future trends in world trade, we can specify factors that will be important. Some of these are: population growth; possible scarcity of commodities, the food and energy situation, relations with the Third World (developing nations), pressures to preserve the environment, and international cooperation on political, social, economic, and monetary problems.

2. If population growth continues at its present pace, the future balance between food demand and supply may become dependent on new dietary patterns. Reduced consumption of meat, increased use of new high protein food made from soybeans, and development of ocean resources for food are some alternatives that must be considered.

3. As the population grows, prices of commodities will fluctuate. As countries endeavor to increase yields on existing croplands through intensified use of water, energy, and fertilizers, the cost of commodities will rise.

4. Growth of trade will depend greatly on availability of energy sources. There may still be a trillion barrels of recoverable oil in the Middle East. But the oil crisis of 1974 has led to renewed interest in coal and to a search for alternative sources of energy. Solar, geothermal, and nuclear energy will play a large role in the years to come.

5. Solar energy is available in various forms. Buildings can be heated and cooled by direct use of solar radiation, crops and trees, which are the most efficient converters of sunlight into energy, can be grown for their energy potential, wastes can be burned as fuel, sunlight can be converted into DC (direct current) electricity, electric power can be derived from the sun-warmed surface waters of the ocean (ocean thermal power), lastly, solar radiation can be converted to heat that will drive electric power generators (solar thermal power). Serious problems still remain as to transportation and storage of solar energy.

6. Geothermal energy is the energy contained within the earth. Heat is abundantly available deep in the earth’s core and is constantly being produced. However, this heat is usually located at too deep a level for commercial exploitation. Sometimes heat comes to the surface in the form of lava and geysers. In short, very