Page 66 - MODUL BAHASA INGGRIS KELAS XI

C. Practice

Practice 1
Here are the examples of explanation text. Read the text below, then analyze the social function,
text structure, and language features of the text.

Text 1
Water Cycle

Water is very important for human, animal, and plant. Water moves from one place to
another. Do you know how water cycle works?
Solar energy evaporates exposed water from seas, lakes, rivers and wet soil, the majority
of this evaporation takes place over the seas. Water is also released into the atmosphere by the
plants through photosynthesis. During this process, known as evapotranspiration, water vapour
rises into the atmosphere.
Clouds are formed when air becomes saturated with water vapour. The two major types
of cloud formation are stratified or layered grey clouds called surutus and following white or dark
grey cloud called cumulus clouds.
Precipitation as rain or hail ensures the heated water reruns to earth’s surface in a fresh
form. Some of this rain, however, falls into the seas and is not accessible to humans. When rain
falls, it either washes down-hill slopes or seeps underground, when snow and hail melt, this water
may also shrink into the ground.

Rain fall also replenishes river water supplies so does underground water. Snow fall may
consolidate into glaciers and ice sheet which, when they melt, release their water into the ground,
into streams or into the seas.

Text 2

We all know that tsunamis are a series of powerful and destructive waves. Tsunami is the
deadliest wave because the wave speed is incredibly fast. But do you know how a tsunami
happens?

Tsunami originated from Japan, “tsu’ meaning harbor and “nami” meaning wave. They are
normally caused by earthquakes, landslides, or volcanic eruptions in, or close to an ocean. After
some sort of underwater disturbance, this causes energy to rise up to sea level pushing the water
high into the air. Gravity kicks in and pulls it down again and then consequently causing the water
to filter out into many different directions.

When a tsunami begins to approach the shore the energy in the wave is compressed. As a result,
the water is pushed up into the wave, resulting in a powerful tsunami. If the trough hits the
shoreline first, it then causes the tide to drastically retreat.

So, tsunamis happen because of natural disasters such as earthquakes or volcanic eruptions.
People who live near the shoreline have to be careful because they are threatened by tsunamis
whenever there is an earthquake.