Pages

martes, 21 de diciembre de 2021

Wh questions

 



There are two main types of questions: Yes/No questions and WH- questions.

WH-questions are questions starting with WH- words including: where, when, why, what, who, whom, which, whose and how.

Let’s have a look at the different types of question words:

WHERE:

WHERE is used when asking about a place or location.

Examples:

  • Where did you buy that book?
  • Where were you born?
  • Where are you going this weekend?


WHEN:

WHEN is used when asking about time, an occasion or a moment.

Examples:

  • When will I see you again?
  • When did they get married?
  • When does your bus leave?

WHY:

WHY is used when asking for a reason or explanation.

Examples:

  • Why are you always late?
  • Why are you so fabulous?
  • Why is the receptionist so shy?

WHY DON’T … is used for making a suggestion.

Examples:

  • Why don’t we go play outside?
  • Why don’t I help you with that?
  • Why don’t you do something about it?

WHAT:

WHAT is used when asking information about a specific thing or object.

Examples:

  • What is she wearing to the concert?
  • What do we need to buy at the supermarket?
  • What did the doctor say is wrong with you?

WHAT is also use when asking for a confirmation or repetition.

Examples:

  • What did you say?
  • What was that? Please repeat.
  • What? Are you sure?

WHAT … FOR? Is used when asking for a reason, explanation or asking why.

Examples:

  • What will you use the camera for?
  • What is Sarah looking for?
  • What did Ben ask for?


WHO:

WHO is used when asking about a person or people (often the subject of the answer)

Examples:

  • Who is the best teacher in the world? Sally is the best teacher.
  • Who should work harder? All the employees should work harder.
  • Who will cook dinner tonight? My cousin will cook dinner tonight.


WHOM:

WHOM is used when asking about a person or people (the object of the answer)

Examples:

  • Whom are they going to visit? They are going to visit their grandparents.
  • Whom is she looking after? She is looking for the nurse.
  • Whom did you see at the party last night? I saw Jane at the party last night.


WHICH:

WHICH is used when asking about a choice or decision between different alternatives or options.

Examples:

  • Which restaurant did you eat at?
  • Which colour do you prefer – red or blue?
  • Which house is yours, the big one or the small one?

WHOSE:

WHOSE is used when asking about ownership or who something belongs to.

Examples:

  • Whose car is parked in my parking space?
  • Whose money was that on the table?
  • Whose house did you have the party at?

HOW:

HOW is used to ask about the way, manner, condition or quality.

Examples:

  • How was the class yesterday?
  • How did you go to the park without your car?
  • How is the magician doing that?

HOW COME: (Informal) is informally used when asking why or asking for a reason.

Examples:

  • How come Jack is the only person with blue eyes in his family?
  • How come Karen didn’t complain about the bad service?

HOW + (ADJECTIVE OR ADVERB):

HOW + (Adjective or Adverb) is used to ask about different expressions or specific qualities of many different things.

Here are some examples:

  • HOW MUCH (Uncountable Quantity)
  • How much water is in the Mediterranean Sea?
  • HOW MANY (Countable Quantity)
  • How many brothers does your father have?
  • HOW FAR (Distance)
  • How far is the hotel from the beach?
  • HOW LONG (Time Duration or Space)
  • How long did you take to get home from work yesterday?
  • HOW OLD (Age)
  • How old was she when she got married?
  • HOW OFTEN (Frequency)
  • How often does he go to the theatre?










martes, 14 de diciembre de 2021

Skin lesions

A skin lesion refers to any skin area that has different characteristics from the surrounding skin, including color, shape, size, and texture. Skin lesions are very common and often appear as a result of a localized damage to the skin, like sunburns or contact dermatitis. Others, however, can be manifestations of underlying disorders, such as infections, diabetes, and autoimmune or genetic disorders. 

Although most skin lesions are benign and harmless, some of them can be malignant or premalignant, meaning they have the potential to evolve into skin cancer


Primary Lesions

Primary skin lesions are either present from birth or develop over your lifetime. They are associated with a specific cause or can be a reaction to either internal or external environments. They tend to be divided into three types of groups:

  • Skin lesions formed by fluid within the skin layers, such as vesicles or pustules.
  • Skin lesions that are solid, palpable masses, such as patches, papules or tumors (nodules, warts...).
  • Flat, non-palpable skin lesions are called macula.


Types of skin

 





lunes, 13 de diciembre de 2021

The skin


 

Facts about the skin


The skin is the body's largest organ. It covers the entire body. It serves as a protective shield against heat, light, injury, and infection. The skin also:

  • Regulates body temperature

  • Stores water and fat

  • Is a sensory organ

  • Prevents water loss

  • Prevents entry of bacteria

  • Acts as a barrier between the organism and its environment

  • Helps to make vitamin D when exposed to the sun


Your skin takes on different thickness, color, and texture all over your body. For example, your head contains more hair follicles than anywhere else. But the soles of your feet have none. In addition, the soles of your feet and the palms of your hands are much thicker than skin on other areas of your body.


The skin is made up of 3 layers. Each layer has certain functions:

  • Epidermis
  • Dermis
  • Subcutaneous fat layer (hypodermis)
  • Subcutaneous fat layer (hypodermis)

Epidermis

The epidermis is the thin outer layer of the skin. It consists of 3 types of cells:

  • Squamous cells. The outermost layer is continuously shed is called the stratum corneum.

  • Basal cells. Basal cells are found just under the squamous cells, at the base of the epidermis.

  • Melanocytes. Melanocytes are also found at the base of the epidermis and make melanin. This gives the skin its color.

Dermis

The dermis is the middle layer of the skin. The dermis contains the following:

  • Blood vessels

  • Lymph vessels

  • Hair follicles

  • Sweat glands

  • Collagen bundles

  • Fibroblasts

  • Nerves

  • Sebaceous glands

The dermis is held together by a protein called collagen. This layer gives skin flexibility and strength. The dermis also contains pain and touch receptors.


Subcutaneous fat layer

The subcutaneous fat layer is the deepest layer of skin. It consists of a network of collagen and fat cells. It helps conserve the body's heat and protects the body from injury by acting as a shock absorber.