Hello Everyone... ! hopefully all of you are fine. in this time Shafta Islamic senior high school will share a topic of lesson of our team teaching lesson between Shafta and guest teacher from ASPAC Academy - Pakistan. It talked about Passive Voive. you may find this material based on Explanation text. The topic About it as follows : 

Explanation is a text which tells processes relating to forming of natural, social, scientific and cultural phenomena. Explanation text is to say ‘why’ and ‘how’ of the forming of the phenomena. It is often found in science, geography and history text books.

Generic Structure of Explanation Text

– General statement
General statement; stating the phenomenon issues which are to be explained.
– Sequenced of explanation
Sequenced explanation; stating a series of steps which explain the phenomena.

Purpose of Explanation Text

– Explanation is a text which tells processes relating to forming of natural, social, scientific, and cultural phenomena.
– To explain how or why something happens.

According to Mark Anderson and Kathy Anderson (1997: 82) says that the explanation text type is often used to tell how and why thing (phenomena) occur in nature.


 

Language Features of Explanation Text

In an explanation text, there are linguistic features as below :
– Using simple present tense
– Using abstract noun (no visible noun)
– Using Passive voice
– Using Action verbs
– Containing explanation of the process ..

Examples of Explanation Text

Example of Explanation Text about Natural Phenomenon

How does Rain Happen?

Rain is the primary source of fresh water for most areas of the world, providing suitable conditions for diverse ecosystems, as well as water for hydroelectric power plants and crop irrigation.

The phenomenon of rain is actually a water circle. The concept of the water cycle involves the sun heating the Earth’s surface water and causing the surface water to evaporate. The water vapor rises into the Earth’s atmosphere. The water in the atmosphere cools and condenses into liquid droplets. The droplets grow until they are heavy and fall to the earth as precipitation which can be in the form of rain or snow.

However, not all rain reaches the surface. Some evaporates while falling through dry air. This is called virga, a phenomenon which is often seen in hot, dry desert regions

Example of Explanation Text about Process of Making Chocolate

How Chocolate is Made

Have we wondered how we get chocolate from? Well this time we will enter the amazing world of chocolate so we can understand exactly we are eating.

Chocolate starts a tree called cacao tree. This tree grows in equatorial regions, especially in place such as South America, Africa, and Indonesia. The cacao tree produces a fruit about the size of a small pine apple. In side the fruits are the tree’s seeds. They are also known as coco beans.

Next, the beans are fermented for about a week, dried in the sun. After that they are shipped to the chocolate maker. The chocolate maker starts processing by roasting the beans to bring out the flavour. Different beans from different places have different qualities and flavour. So they are often shorted and blended to produce a distinctive mix.

The next process is winnowing. The roasted beans are winnowed to remove the meat nib of the cacao bean from its shell. Then the nibs are blended. The blended nibs are grounded to make it liquid. The liquid is called chocolate liquor. It tastes bitter.

All seeds contain some amount of fat and cacao beans are not different. However, cacao beans are half fat, which is why they ground nibs from liquid. It is pure bitter chocolate.

Example of Explanation Text – How a Cancer is Formed

How a Cancer is formed

What is cancer? It is actually a group of more than one hundred separate diseases. Most of us are fear from cancer It is reasonable because next to heart disease, cancer is the second leading cause of death.
Cancer cells come from normal cells because of mutations of DNA. Those mutations can occur spontaneously. The mutations may be also induced by other factors such as: nuclear and electromagnetic radiation, viruses, bacteria and fungi, parasites, heat, chemicals in the air, water and food, mechanical cell-level injury, free radicals, evolution and ageing of DNA, etc. All such factors can produce mutations that may start cancer.

Cancer cells are formed continuously in the organism. It is estimated that there are about 10,000 cancer cells at any given time in a healthy person. Why do some result in macroscopic-level cancers and some do not? First, not all damaged cells can multiply and many of them die quickly. Second, those which potentially divide and form cancer are effectively destroyed by the mechanisms available to the immune system. Therefore cancer develops if the immune system is not working properly or the amount of cells produced is too great for the immune system to eliminate.

 

ppt of passive voice : http://bit.ly/passivevoice-teamteaching