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.

Which of the following can be inferred from the passage?

A. Animal and plant species which pose threats to humans will die out soon.

B. Saving popular animal and plant species should be given a high priority.

C. Humans will make changes in their lifestyles to save other species.

D. The dilemma humans face between maintaining their lives and saving other species remains

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   22  to  26

A.   Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil                                       B. contamination of soil

C. reduction of nutrients                            D. loss of water supply

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 36 to 40.

What is the main idea of the passage?

A. Human ancestors became predominantly right-handed when they began to use tools.

B. It is difficult to interpret the significance of anthropological evidence concerning tool use.

C. Humans and their ancestors have been predominantly right-handed for over a million years.

D. Human ancestors were more skilled at using both hands than modern 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 36 to 40.

What is the main idea of the passage?

A. outline

B. hand

C. wall

D. paint

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.

What is the main idea of the last paragraph?

A. Gerontologists have controlled the process of aging. 

B. Gerontologists are working hard to help people live longer and more healthily. 

C. Gerontologists are trying to give people an eternal life. 

D. Gerontologists are now able to slow down the process of aging.

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.

     Earth orbits the sun while the moon orbits Earth. Occasionally, all three of them become aligned with one another. When this happens, an eclipse occurs. There are two types of eclipses: solar and lunar. Both are rare events simply because, due to the movement of all three celestial bodies, the times when they line up with one another are infrequent.

     Solar eclipses are easily the more spectacular of the two. For a solar eclipse to occur, the moon's orbit must take it between Earth and the sun. While the sun is much larger than the moon, the relative nearness of the moon to Earth makes it appear to be the same size as the sun when viewed from the ground. Thus, when the sun, Earth, and moon are perfectly aligned, the moon appears to cover the entire sun. This is a solar eclipse. A solar eclipse may be either total or partial.      When a total eclipse happens, the sun is completely obscured by the moon. The sky darkens, and it appears to be night time. However, most solar eclipses are partial ones. When they take place, the sun is only partly covered by the moon.

     When a solar eclipse happens, it is observable from a fairly small area on the planet. Thus, when there is a solar eclipse in North America, it is highly unlikely that it will be visible in Africa or Australia. A solar eclipse only lasts for a few minutes since all three heavenly bodies are in continual motion. People must also take care when viewing a solar eclipse since looking directly at it can cause damage - including blindness - to their eyes.

     Lunar eclipses happen when Earth moves directly between the sun and the moon. When this occurs, the planet blocks sunlight from reflecting off the moon. Lunar eclipses take place at night. During one, the moon appears very orange and is practically red in color. There are two different types of lunar eclipses. Taken together, the result is that lunar eclipses happen more frequently than solar eclipses. In addition, lunar eclipses may last for hours and can be seen from a wider area on the planet. There is no harm in directly observing a lunar eclipse either, so looking at one will not damage a person's eyes.

28. What is the passage mainly about?

     A. How eclipses have affected history       B. Two types of eclipses

     C. The problems eclipses cause                  D. Solar eclipses

29. What is the word ‘spectacular’ in line 5 closest in meaning to?

     A. distinct              B. impressive            C. lost lasting             D. common

30. Why is the moon able to cover the sun during a solar eclipse?

     A. Because of its large size                         B. Because of its brightness

     C. Because of its closeness to Earth                        D. Because of its rotation

31. Which of the following is NOT mentioned about solar eclipses?

     A. How they can harm people

     B. How long they may last

     C. How much of the sun cannot be seen during them

     D. How often they happen

32. What can be inferred from the passage about lunar eclipses?

     A. It is possible to see them from everywhere in the world.

     B. They are less dangerous to people than solar eclipses.

     C. Superstitious people believe they bring bad luck.

     D. During a full moon, they can be extremely bright.

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.

Which of the following can result from the loss of one species in a food chain?

A. The connections among the creatures in the food chain become closer.

B. Larger predators will look for other types of prey.

C. There might be a lack of food resources for some other species.

D. Animals will shift to another food chain in the community.

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.

What is the main idea of the passage?

A. Today’s style of American music is mostly influenced by African-rooted songs.

B. It is hard to exactly recognize the people who started the American musical tradition.

C. Spirituals, blues and ragtime are the major components that formed jazz.

D. American’s musical history was built by several famous musicians.

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.

What is the main idea of the passage?

A. Today’s style of American music is mostly influenced by African-rooted songs.

B. It is hard to exactly recognize the people who started the American musical tradition.

C. Spirituals, blues and ragtime are the major components that formed jazz.

D. American’s musical history was built by several famous musicians.