9. Trucks using the interstate highways deliver more than .
10. The interstate system was renamed after Eisenhower in recognition of
Directions: In this section ,there is a passage with ten blanks .You are required to select one word for each blank from a list of choices given in a word bank following the passage .Read the passage through carefully before making your choices .Each choice in bank is identified by a letter .Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the center .You may not use any of the words in the bank more than once.
Questions 47 to 56 are based on the following passage.
E1 Nino is the name given to the mysterious and often unpredictable change in the climate of the world. This strange 47 happens every five to eight years. It starts in the Pacific Ocean and is thought to be caused by a failure in the trade winds , which affects the ocean currents driven by these winds. As the trade winds lessen in 48 , the ocean temperatures rise, causing the Peru current flowing in from the east to warm up by as much as 5℃.
The warming of the ocean has far-reaching effects. The hot, humid air over the ocean causes severe 49 thunderstorms. The rainfall is increased across South America, 50 floods to Peru. In the West Pacific, there are droughts affecting Australia and Indonesia. So while some parts of the world prepare for heavy rains and floods, other parts face drought, poor crops and 51 .
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