200906013 -- How Sunburns Work (2)

How Sunburns work

Avoiding sunburn
There are three ways you can avoid sunburn. One is to stay inside over cover all you skin with clothing. The second way is to use a sunscreen. Sun screen contains chemicals that absorb ultraviolet light. The third way is to get out in the sun a little bit each day and get a tan. The tan will protect your skin from sunburn.

More about tans
Here's how a tan works. If you look at a cross section of your skin, you have the outer layer called the stratum corneum. This layer contains the dead skin cells that you actually see covering your body. Below the stratum corneum is the granular layer, and below that is the basal layer. Tanning happens in the basal layer, which contains special cells called melanocytes. When a melanocyte detects ultraviolet light, it creates a brown pigment called melanin. Meianin, like sunscreen, absorbs ultraviolet light and protects your skin from damege. If people spent all their time outdoors, their skin would natually tan and "untan" with the season. You would never get a sunburn.



sunscree n. 防曬霜
eg: Remember to put sunscreen on before going out in the sun.
eg: Apply sunscreen on your skin 30 minutes before you go outdoors.

suntan lotion


tan n. 褐色/古銅色皮膚
eg: Marie had a tan when she came back from her vacation in Hawaii.

layer n. 層
the ozone layer 臭氧層
eg: This cake has three layers with different flavors.
eg: She put on layers of make-up to cover her spotty complexion.
eg: We stripped several layers of paint off the wall before repainting it.

detect v. 發現/察覺
eg: Holly able to detect when somebody is lying by his or her body movements.
eg: The bank security system can detect any unusual movement in the vault(保險庫).
eg: I detected the anxiety in her voice.
eg: Experts have detected signs that the economy is declining.


stratum corneum 角質層
granular layer 顆粒層
basal layer 基底層
melanocytes 黑素細胞
melanin 黑色素

granular adj. 粒狀的
basal adj. 基部的
pigment
-> anything gives substances color

//== More Infor ==//
Your skin is one of the most amazing organs in your body. The skin of a typical adult weights about 3.5 kilograms and cover about 1.8 square meters. Skin is loaded with sensors, blood vessels, sweat glands, hair follicles and muscles.

//== Chat room ==//

If people spent all their time outdoors, their skin would natually tan and "untan" with the season.

tan n. 褐色/(皮膚)古銅色
tan v. 曬黑
untan v.
-> makeup verb 作者為了文章的順暢造出來的動詞

tanning beds 日光浴床
tanning booths
tanning lamb 太陽燈
tanning salons 日光沙龍