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Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Today’s lunar and solar eclipses (A) can predict to within (B) seconds of (C) their occurrence, and interest in them is scientific (D) as well as aesthetic.
A.can predict 
B.seconds 
C.their 
D.as well as
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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 35 to 42.
Star Wars is one of the most successful franchises in entertainment history. The idea of a science epic taking place in a fictional universe was created by George Lucas, a writer, producer and director. The first Star Wars film, which is called A New Hope, was released in 1977 and became a worldwide pop culture phenomenon, spawning five television series and an extensive collection of licensed books, comics, video games and other merchandise. It was succeeded by The Empire Strikes Back and Return of the Jedi in 1980 and 1983, respectively.
The scripts of Star Wars began with 14 pages of treatment for a space adventure film that Lucas drafted in 1973, inspired by various myths and legends. He described many of the characters in the film essentially identical to humans, since he wanted audiences to feel more relevant to the movies. The characters interact with implausible creatures of many different kinds from numerous planetary systems within the Star Wars galaxy. The world in the movie is portrayed as dirty and grimy, unlike many other science fiction and fantasy films that featured sleek and futuristic worlds. The Star Wars series, which consisted of boundless imagination of the director and highly advanced computer graphics to make it look real, was received with wild enthusiasm, and the public anticipated seeing the following episode.
After having completed Return of the Jedi, however, Lucas announced that he was putting Star Wars on indefinite hold until special effects technology had improved to his satisfaction. While the movie fans all around the world had to wait not knowing if there would another series or not, he kept his words stubbornly. Then, after seeing the effects results of Jurassic Park, Lucas finally decided that he would produce a trilogy of prequels in 1994. When the first prequel, The Phantom Menace was released in 1999, it became one of the biggest hits in movie history, topping Lucas's own box office records for the previous ones.
The Star Wars saga has had an important impact on modern society and has become part of global pop culture. There have been popular novels that parodied both the film and characters of Star Wars and many songs based on the Star Wars universe have been released. Also, most science fiction films have been influenced by and compared to Star Wars and many critics say that the visual and virtual effects that dominate today’s films would have never been created if it were not for Lucas's revolutionizing of the film industry with Star Wars.
Which of the sentences below best expresses the essential information in the hightlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information.
A.Because of many characters identified as humans, audiences felt more connected to the movies.
B.He tried to make the movies more relevant to the audiences by depicting the fantasy characters like humans.
C.Presenting the human characters in the movie was to have audiences feel more related to the movies.
D.He believed that audiences would feel closer to his movies if the characters were humans.

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 43 to 50.
An air pollutant is defined as a compound added directly or indirectly by humans to the atmosphere in such quantities as to affect humans, animals, vegetation, or materials adversely. Air pollution requires a very flexible definition that permits continuous changes. When the first air pollution laws were established in England in the fourteenth century, air pollutants were limited to compounds that could be seen or smelled - a far cry from the extensive list of harmful substances known today. As technology has developed and knowledge of the health aspects of various chemicals has increased, the list of air pollutants has lengthened. In the future, even water vapor might be considered an air pollutant under certain conditions. 
Many of more important air pollutants, such as sulfur oxides, carbon monoxides and nitrogen oxides are found in nature. As the Earth developed, the concentration of these pollutants was altered by various chemical reactions; they became components in biogeochemical cycles. These serve as an air purification scheme by allowing the compounds to move from the air to the water or soil. On a global basis, nature's output of these compounds dwarfs that resulting from human activities. 
However, human production usually occurs in a localized area, such as a city. In such a region, human output may be dominant and may temporarily overload the natural purification scheme of the cycles. The result is an concentration of noxious chemicals in the air. The concentrations at which the adverse effects appear will be greater than the concentrations that the pollutants would have in the absence of human activities. The actual concentration need not be large for a substance to be a pollutant; in fact, the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable  health effects at 0. 08 parts per million (ppm), which is about 400 times its natural level. Carbon monoxide, however has a natural level of 0. 1 ppm and is  not usually a pollutant until its level reaches about 15 ppm. 
For which of the following reasons can natural pollutants play an important role in controlling air pollution? 
A.They're less harmful to living beings than other pollutants. 
B.They function as part of a purification process.
C.They occur in greater quantities than other pollutants. 
D.They have existed since the Earth developed.

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