Explanation Text Assignment

When we use a camera, the image of an object is focused on the lens which is produced upside-down and reduced on to the film.

With the eye, the lens is the pupils and the film is the retina. When an object is “in focus”- that is, seen clearly-the image is formed on the retina.

If the image is behind the retina, that is long –sightedness, where a person sees best the things which are furthest away.

If the image is in front of the retina, that is short-sightedness, where a person needs to have things close to be able to see them clearly.

Just as a photographer would adjust his camera, so an optician carries out tests and finds the best lenses to enable a person to focus an image on the retina.

Many people wear glasses for reading, drawing, studying, watching television, computer work and driving.

Any artificial light alters the elasticity of the eye and its ability to focus.

1. What is the text about?

• Why do people need glasses?

• How do people wear glasses?

• Why do people become blind?

• When do people need glasses?

• Where do people get glasses?

When we use a camera, the image of an object is focused on the lens which is produced upside-down and reduced on to the film.

With the eye, the lens is the pupils and the film is the retina. When an object is “in focus”- that is, seen clearly-the image is formed on the retina.

If the image is behind the retina, that is long –sightedness, where a person sees best the things which are furthest away.

If the image is in front of the retina, that is short-sightedness, where a person needs to have things close to be able to see them clearly.

Just as a photographer would adjust his camera, so an optician carries out tests and finds the best lenses to enable a person to focus an image on the retina.

Many people wear glasses for reading, drawing, studying, watching television, computer work and driving.

Any artificial light alters the elasticity of the eye and its ability to focus.

2. Where is the image formed on a person who sees best something which is far from him/her?

• On his/her retina

• In front of his/her pupil

• Behind his/her pupil

• Behind his/her retina

• In front of his/her retina

When we use a camera, the image of an object is focused on the lens which is produced upside-down and reduced on to the film.

With the eye, the lens is the pupils and the film is the retina. When an object is “in focus”- that is, seen clearly-the image is formed on the retina.

If the image is behind the retina, that is long –sightedness, where a person sees best the things which are furthest away.

If the image is in front of the retina, that is short-sightedness, where a person needs to have things close to be able to see them clearly.

Just as a photographer would adjust his camera, so an optician carries out tests and finds the best lenses to enable a person to focus an image on the retina.

Many people wear glasses for reading, drawing, studying, watching television, computer work and driving.

Any artificial light alters the elasticity of the eye and its ability to focus.

3. Just a photographer would adjust his camera. What is the synonym of the word “adjust”?

• Adapt

• Upgrade

• Increase

• Supply

• Reduce

When we use a camera, the image of an object is focused on the lens which is produced upside-down and reduced on to the film.

With the eye, the lens is the pupils and the film is the retina. When an object is “in focus”- that is, seen clearly-the image is formed on the retina.

If the image is behind the retina, that is long –sightedness, where a person sees best the things which are furthest away.

If the image is in front of the retina, that is short-sightedness, where a person needs to have things close to be able to see them clearly.

Just as a photographer would adjust his camera, so an optician carries out tests and finds the best lenses to enable a person to focus an image on the retina.

Many people wear glasses for reading, drawing, studying, watching television, computer work and driving.

Any artificial light alters the elasticity of the eye and its ability to focus.

4. Which of the following statements is NOT TRUE based on the text?

• The retina works like the film of a camera

• Any artificial light alters the elasticity of the eye

• An image is seen clearly if it is formed on the pupil

• The pupil of the eye works like the lens of a camera

• An optician’s task is to enable a person to focus an image on the retina

When we use a camera, the image of an object is focused on the lens which is produced upside-down and reduced on to the film.

With the eye, the lens is the pupils and the film is the retina. When an object is “in focus”- that is, seen clearly-the image is formed on the retina.

If the image is behind the retina, that is long –sightedness, where a person sees best the things which are furthest away.

If the image is in front of the retina, that is short-sightedness, where a person needs to have things close to be able to see them clearly.

Just as a photographer would adjust his camera, so an optician carries out tests and finds the best lenses to enable a person to focus an image on the retina.

Many people wear glasses for reading, drawing, studying, watching television, computer work and driving.

Any artificial light alters the elasticity of the eye and its ability to focus.

5. Any artificial light alters the elasticity of the eye and its ability to focus. What does the word “its” refer to?

• Artificial light

• The pupil of the eye

• Any light

• The elasticity of the eye

• The eye

For questions 6 to 10, fill in the blank spaces!

The sense of taste is one of a person’s five ....

When the tongue ... contact with food of any kind, the taste-buds will pick up the taste.

The nerves then ... a message to the brain.

The senses of smell and sight can ... taste.

Very hot or cold sensations can make the taste-buds ....