Караганда 2016
Dental treatments
Present Perfect Continuous
Категория: Английский языкАнглийский язык

Dental Clinics. Present Perfect Continuous

1. Караганда 2016

Карагандинский Государственный Медицинский Университет
Тема СРСП: Dental Clinics. Present Perfect Continuous.
Сапаров Жаик
СТОМ 2-009

2. Dentistry

Dentistry is a branch of medicine that is involved in the
study, diagnosis, prevention, and treatment of diseases,
disorders and conditions of the oral cavity.
The history of dentistry is almost as ancient as the
history of humanity and civilization with the earliest
evidence dating from 7000 BC

3. Dental treatments

Dental treatments are carried out to prevent or treat the
two most common oral diseases which are dental
caries (tooth decay) and periodontal disease (gum
disease or pyorrhea). Common treatments involve
therestoration of teeth, extraction or surgical removal of
teeth, scaling and root planing and endodontic root

4. Present Perfect Continuous

Обозначает действие, которое началось в прошлом и
продолжается до настоящего момента речи. Действие может ещё
происходить в момент речи.
П + have/has + been + Ving
П + have/has + not + been + Ving
have/has + П + been + Ving

5. Примеры

We have been staying here all this week.
Have you been reading this book for 2 hours?
We have not been staying here all this week.
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