Find all Prepositions in the text. Compose a sentence of your own using each preposition with the same meaning.

11. Why Are Babies Born with Blue Eyes?

to inherit	успадкувати	a blood vessel	кровоносна судина
to deposit	давати осад	stable	стабільний, стійкий
an iris	радужна оболонка ока	to experience	зазнавати
exposure	піддавання	to affect	впливати
albinism	альбінізм, відсутність пігменту в шкірі	cut-and-dried	щось встановлене раз і назавжди, догма

You inherit your eye color from your parents, but no matter what the color is now, it may have been blue when you were born. Why? Melanin, the brown pigment molecule that colors your skin, hair, and eyes, hadn’t been fully deposited in the irises of your eyes or darkened by exposure to ultraviolet light. The iris is the colored part of the eye that controls the amount of light that is allowed to enter. Some other animals are born with blue eyes, too, such as kittens.

Melanin is a protein. Like other proteins, the amount and type you get is coded in your genes. Irises containing a large amount of melanin appear black or brown. Less melanin produces green, gray, or light brown eyes. If your eyes contain very small amounts of melanin, they will appear blue or light gray. People with albinism have no melanin in their irises and their eyes may appear pink because the blood vessels in the back of their eyes reflect light.

Melanin production generally increases during the first year of a baby’s life, leading to a deepening of eye color. The color is often stable by about 6 months of age. However, several factors can affect eye color, including use of certain medications and environmental factors. Some people experience changes in eye color over the course of their lives. People can have eyes of two colors. Even the genetics of eye color inheritance isn’t as cut-and-dried as was once thought, as blue-eyed parents have been known (rarely) to have a brown-eyed child!

Speech patterns

If + Present...,... will + V …
If your eyes containvery small amounts of melanin, they will appear blue or light gray.	Якщо у ваших очах буде міститися дуже мала кількість меланіну, вони виявляться блакитними чи світло-сірими.

Say whether these statements are TRUE or FALSE.

1. The eye color is inherited from the parents, but it may change during the first year of a baby’s life.

2. The iris is the colored part of the eye that doesn’t control the amount of light that is allowed to enter.

3. The larger the amount of melanin, the lighter the color of eyes.

4. People with albinism have no melanin in their irises.

5. People cannot have eyes of two colors.

2. Guess the terms from the text corresponding to the following definitions to complete the rows of the puzzle. In one of the columns read a key word:

1) coloring matter; 2) the organ of sight of animals, containing light-sensitive cells; 3) an attribute of things that results from the light they reflect, transmit, or emit; 4) a person or nonhuman mammal lacking coloring matter in the skin, hair, and eyes; 5) a branch of biology dealing with heredity and variation; 6) the colored part around the pupil of an eye; 7) to receive something from one’s ancestors.

Дата добавления: 2015-10-30