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ENGLISH FOR ACADEMIC PURPOSES

5. What is the main idea of the second paragraph?
____ (A) Unsaturated fats may reduce cholesterol levels.
____ (B) The consumption of any type of fat leads to heart disease.
____ (C) Fats taken in the proper proportion may reduce serum cholesterol.

6. The main idea of the third paragraph is that
____ (A) people are eating less and less fat today
____ (B) fats should be gradually eliminated from the diet
____ (C) excessive consumption of fats may be dangerous to one's health

7. With which of the following is the whole passage primarily concerned?
____ (A) The role of fats in human health
____ (B) The dangers of cholesterol
____ (C) The benefits of fats in the diet
____ (D) The importance of good nutrition

Question 8 – 10

The term weathering refers to all the ways in which rock can be broken down. It takes place
because minerals formed in a particular way (say at high temperatures, in the case of igneous rocks)
are often unstable when exposed to various conditions. Weathering involves the interaction of the
lithosphere (the earth's crust) with the atmosphere and hydrosphere (air and water). It occurs at
different rates and in different ways, depending on the climactic and environmental conditions. But
all kinds of weathering ultimately produce broken minerals and rock fragments and other products
of the decomposition of stone.
Soil is the most obvious and, from the human point of view, the most important result of the
weathering process. Soil is the weathered part of the Earth's crust that is capable of sustaining plant
life. The character of soil depends on the nature of rock from which it is formed. It also depends on
the climate and on the relative "age" of the soil. Immature soils are little more than broken rock
fragments. Over time, immature soil develops into mature soil, which contains quantities of humus,
formed from decayed plant matter. Mature soil is darker, richer in microscopic life, and more
conducive to plant growth.

8. The first paragraph primarily describes
___ (A) the process by which rocks are broken down
___ (B) the weathering of igneous rocks
___ (C) gradual changes in the earth's weather patterns

9. The main topic of the second paragraph is
___ (A) a description of immature soil
___ (B) the growth of plants
___ (C) the evolution of soil

10. The main idea of the entire passage is that
___ (A) weathering breaks down rocks and leads to the development of soil
___ (B) soils may be classified as mature or immature
___ (C) the process of soil development is more important to humans than that of
weathering
___ (D) the Earth's crust is constantly changing

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