43. How did Ebbesmeyer prove his assumption?
A. By collecting information from beachcombers.
B. By studying the shoes found by beachcombers.
C. By searching the web for ocean currents models.
D. By researching ocean currents data in the library.
44. Ebbesmeyer is most famous for ________.
A. travelling widely the coastal cities of the world
B.
making records for any lost objects on the sea
C. running a global currents research association
D.
phoning about any doubtful objects on the sea
45. What is the purpose of the author in writing this passage?
A. To call people's attention to ocean pollution.
B. To warn people of shipping safety in the ocean.
C. To explain a unique way of studying ocean currents.
D. To give tips on how to search for lost objects on the beach.
等转折词,转折后是作者要表达的重点。根据第一段的“However, ocean expert Curtis Ebbesmeyer does it in a special way-by studying movements of random floating garbage.”可知作者的写作目的是解释研究洋流的一种特殊的方法。故选C。
2017·湖北卷]
C
Working with a group of baboons(狒狒) in the Namibian desert, Dr Alecia Carter of the Department of Zoology, Cambridge University set baboons learning tasks involving a novel food and a familiar food hidden in a box. Some baboons were given the chance to watch another baboon who already knew how to solve the task, while others had to learn for themselves. To work out how brave or anxious the baboons were, Dr Carter presented them either with a novel food or a threat in the form of a model of a poisonous snake.
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