Authors: Dr Omer Hayban Omer, Abdelmahmoud Mohammed Ahmef, Nazar Abdelhadi Elmona,Amna Hussein Omer Hussein and Mussab Hassan Ibrahim Fegiri (Sudan)  | Published on 1 March 2023


Level: B1

Time: 45- 60 minutes

Objective: To enable learners to use the present simple to describe processes.

Starter: Before reading the short statements below, show the class the heart and centrifugal pump pictures to stimulate and motivate them.

Say: “A pump is a part of every system for moving fluids from one place to another. The heart pumps blood through arteries, veins and capillaries across the body. The surface centrifugal pump, on the other hand, pumps water through pipes to household water taps.”

Stage 1: Language Focus: Present Simple  

Describing Processes

Split students into two groups to swap information on their existing knowledge of water and blood circulation.


  1. The heart pumps blood throughout the body
  2. Arteries carry blood to all parts of the body.
  3. Veins collect the blood from the body.
  4. Blood enters the heart through arteries.
  5. The lungs oxygenate the blood.
  6. Capillaries bridge arteries and veins.
  7. Centrifugal pumps move fluid by using centrifugal force to generate velocity of the liquid. 
  8. Fluid enters the pump through the suction nozzle, into the eye of the impeller. 
  9. The impeller vanes catch the fluid and rotate it until it exits the pump on the discharge side.

Stage 2: Form

On the board, explain the structures and the habitual actions’ adverbials of the present simple tense.  


(3d Person Singular) + infinitive without to +…S. 

The heart pumps blood throughout the body.

Centrifugal pumps move fluid.


(3d Person Singular) +Does not infinitive without to: 

            The heart does not pump water throughout the body.

            Centrifugal pumps do not move blood.


Yes / No Questions.

Does (3d Person Singular) + infinitive without to? 

         Does the heart pump blood throughout the body?

        Do Centrifugal pumps move fluid?

Wh- Questions.      

 Wh- + Does+ (3d Person Singular) + infinitive without  to ?

       How does the heart pump blood throughout the body? 

      How do Centrifugal pumps move fluid?

Stage Three: Use

The present simple is used to express facts.

       The heart pumps blood around the body

        Engineers draw pumps on pieces of paper.

Stage 4: Feedback

Check learners’ understanding of how to form the Present Simple.

Grammar Check: (1): Use the present simple by putting the verbs in brackets in the correct grammatical forms.

  1. The heart ...........................................(beat) 72 times per minute.
  2. The centrifugal pump ..........................(not work) without power source.
  3. Arteries .........................................(not pump) blood.

Grammar Check: (2):

In pairs, students practise the structures of the simple present as in the example below:

Example: My heart beats fast.

  My heart does not beat fast.……………

  Does your heart beat fast?

  How often does your heart beat fast?

1. The heart works regularly.

2. The centrifugal pumps pump liquids. 


Vein: a tube that carries blood to the heart from the other parts of the body.

Artery: one of the thick tubes that carry blood from the heart to other parts of the body.

Capillary: a very thin tube, especially one of the smaller tubes that carry blood around the body .

Oxygenate: to add oxygen to something. 

Centrifugal: (of a turning object) moving away from the point around which it is turning.

 Velocity: the speed at which an object is travelling. 

Suction: when air is removed from a space resulting in a lower pressure in that space, causing liquid, gases or other substances to enter, or causing two surfaces to stick together .

Nozzle: a narrow piece fixed to the end of a tube so that the liquid or air that comes out can be directed in a particular way. 

Vane: a flat narrow part of a fan, propeller, etc. which turns because of the pressure of air or liquid against it.

Rotate: to (cause to) turn in a circle, especially around a fixed point.

Discharge: to send out a substance, especially waste liquid or gas.