dimecres, 22 de gener del 2014

A day in the life of a dental hygienist


Tooth anatomy

Kinds of teeth:

¢Incisors -Incisors have a  single root. Upper incisors are larger than lower incisors.  
¢Canines -Canine teeth are also called cuspid. They have one large pointed cusp and a very long single root. 
¢Bicuspids -These teeth (especially the upper ones) usually have two obvious cusps. Lower bicuspids just have one root. Upper ones can have one or two. Bicuspid teeth are also called premolars. 

¢Molars -The molars are the largest teeth in the mouth. They have four or five cusps. Upper molars have three roots, lower ones just two.  

dimarts, 21 de gener del 2014

Giving instructions

Imperative form in  english


We use the imperative form to give orders,
warnings and advice:
Be quiet!
Take care!
Listen to me carefully!



¢Because it can sound rude to give direct orders (especially if you are talking to an adult), we "soften" the imperative form with "let's" or "please":

Let's go now.
¢Please listen to what I'm saying.

Use a modal verb to turn the order into a request in english



Could: Could you make me some tea?
¢Can: Can you come here please?
¢Will: Will you shut the door please?
¢Would: Would you wait here until the doctor is ready for you? 

Use an introductory phrase to soften the order is english



Would you mind possibly… (+
ing) (Most indirect)
¢Would you mind possibly moving your car? It's parked right in front of mine.
¢I was hoping you could … (+ infinitive without to)
¢I was hoping you could spare me a few minutes this morning.
¢Do you think you could … (+ infinitive without to)
¢Do you think you could do this photocopying for me?
¢I'd like you to…