500 IN 1900, AND THERE ARE ONLY ABOUT 400 FUNCTIONING LIGHTHOUSES...

1,500 in 1900, and there are only about 1,400 functioning lighthouses outside the United States. Some decommissioned

lighthouses have been preserved as historical monument.

Question 43: Which of the following is NOT mentioned in the passage as one of the functions of lighthouses?

A. To help sailors determine their location

B. To warn of danger from rocks and reefs

C. To notify sailors that bad weather is approaching

D. To indicate that land is near

Question 44: The word “prominent” is closest in meaning to_______.

A. dangerous

B. conspicuous

C. picturesque

D. famous

Question 45: In the context of this passage, the author uses the term “characteristic” to refer to a _______.

A. period of darkness

B. person who operates a lighthouse

C. pattern painted on a lighthouse

D. distinctive light signal

Question 46: According to the passage, what kind of signal has long periods of light that are regularly broken by two or

more periods of darkness?

A. Flashing

B. Group occulting

C. Occulting

D. Group flashing

Question 47: For which of the following does the author NOT provide a scientific example in the third paragraph?

A. A lighthouse with day-marker patterns

B. A lighthouse made of steel

C. A lighthouse shaped like a pyramid

D. A lighthouse that resembles a house on a platform

Question 48: According to the passage, a catoptric apparatus is one that uses _______.

A. lights of various colors

B. metal

C. glass

D. a radio beacon

Question 49: It can be concluded from the passage that lighthouses with day- marker patterns would most likely be found

in areas where_______.

A. the weather is frequently bad

B. the structure themselves cannot be easily seen by passing mariners

C. there are not many lighthouses

D. there are a number of lighthouses with similar structures

Question 50: The author implies that, compared to those of the past, contemporary lighthouses ______.

A. employ more powerful lights

B. are more difficult to operate

C. require less maintenance

D. are more romantic

(Cán bộ coi thi không giải thích gì thêm)

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