Exercise about Explanation Text

1. How does Rain Fall?

Rain is one of the main sources of fresh water for almost all people in the world. It provides suitable conditions for diverse ecosystems. It is also used as hydroelectric power plants and crop irrigation. But, do you know how rain happens?

The rain’s phenomenon is actually what we often call as “water circle.” The concept of the water cycle involves the sun heating the Earth’s surface water and causing the surface water to evaporate. Then the water vapor rises into the Earth’s atmosphere.

The water in the atmosphere cools and condenses into liquid droplets. The droplets grow bigger and heavier and fall to the Earth as precipitation.

However, not all rain can reach the surface of the earth. Some evaporates while failing through dry air. This is what we call as “Virga”, a phenomenon which is often seen in hot, dry desert regions.

What happen to the doplet when it gets heavy?

a. Rise

b. Fall

c. Flow

d. Evaporates

e. Boiled

Answer : B

2. Human body is made up of countless millions of cells. Food is needed to built up new cells and replace the worn out cells. However, the food that we take must be changed into substances that can be carried in the blood to the places where they are needed. This process is called digestion.

The first digestive process takes place in the mouth. The food we eat is broken up into small pieces by the action of teeth, mixed with saliva, a juice secreted by glands in the mouth. Saliva contains digestive juice which moisten the food, so it can be swallowed easily.

From the mouth, food passes through the esophagus (the food passage) into the stomach. Here, the food is mixed with the juices secreted by the cells in the stomach for several hours. Then the food enters the small intestine. All the time the muscular walls of the intestine are squeezing, mixing and moving the food onwards.

In a few hours, the food changes into acids. These are soon absorbed by the villi (microscopic branch projections from the intestine walls) and passed into the bloodstream.

What is the text about?

A. The digestive system

B. The digestive juice

C. The method of the digestive system

D. The process of intestine work

E. The food substances

Answer : A

3. A kite is an object which is made from a light material stretched over a frame. Due to its light material a kite will lift off the ground and fly when it is tilted into the wind.

A kite is uses wind to make it fly because it is heavier than air. When wind travels over the surface of the kite, it is split into two streams of air. One stream of the air goes over the kite while the second stream goes under the kite.

The upper stream above the kite. The lower stream hits the kite at a shallow angle and creates an area of high pressure.

The high pressure area has a pushing effect while the low pressure area has a pulling effect. The combination of push and pull can creates enough force to lift the kite into the air.

Kites have been known for thousand of years. They are used for military or scientific purposes. Todays kites are much used for leisure and competition.

What media which use by kite to fly?

A. Air

B. Water

C. Ground

D. Light

E. Wind

Answer : E

4. 

The snowfall is always exciting, isn’t it? In the snowfall you can crunch through the snow, make a snowman and play snowballs with your brother. Have you ever wondered how snow is made, through?

Snow occurs when water vapors in the air freeze before they can turn into water. This happens when the temperature in the clouds is very cold. Snowflakes are made up of crystals of ice that have formed around bits of dirt in the air. The snowflakes start out very small and grow. Each snowflake is different and might contain up to 200 crystals.

What does the writer think about snowfall?

a. Exciting

b. Sad

c. Frightening

d. Dejecting

e. Ugly

Answer : A

5. Global warming is a phenomenon used to describe the gradual increase in the temperature of Earth's atmosphere and oceans. Global warming is not a new problem lately people are acknowledging that we are facing a serious problem. Climate change is apparent everywhere.

Based on the text, we can conclude that global warming is ...

A. the raise of Earth's atmosphere and ocean temperature

B. is a new problem faced by human

C. is not a severe problem

D. the temperature of Earth's atmosphere and the oceans

E. a phenomenon

Answer : A