First, we will look at which information we could give:
​
1. Why are blades large and flat?
​
So that they spin.
​
2. What does the gearbox do?
​
It makes the spinning faster.
​
3. What goes the generator do?
​
It turns the movement into electricity.
​
4. What does the transformer do?
​
It changes the voltage.
​
5. Why do they increase the voltage?
​
It allows a more efficient transfer of energy.
​
Note: You can answer the questions without any of this information. IELTS Task 1 doesn't require any prior knowledge of the process. However, as you analyse the diagram before you start writing, think about the purpose of each step.
Fill in the gaps. There might be more than one possible answer:
​
6. Large blades are designed with a large flat surface to spin (spin) as the wind moves past them.
​
7. This movement turns a gearbox, with the aim of increasing the rotational speed.
​
8. This energy is then transferred into a generator, which is used for converting kinetic energy into high-voltage electricity.
​
9. The transformer ups the voltage so that it can be transferred over a long distance.
​
Rewrite your answers to the previous questions using different methods for showing purpose. Remember, you cannot directly swap them as they are used in different ways.
​
10. Rewrite the answer for question 6 using 'so that'
​
Large blades are designed with a large flat surface so that they spin as the wind moves past them.
​
11. Rewrite the answer for question 7 using 'to'
​
This movement turns a gearbox to increase the rotational speed.
​
12. Rewrite the answer for question 8 using 'with the aim of'
​
This energy is then transferred into a generator with the aim of converting kinetic energy into high-voltage electricity.
​
13. Rewrite the answer for question 9 using 'for'
​
The transformer ups the voltage for being transferred over a long distance.