Слайд 1Science
Across the curriculum
Teeth
Слайд 2How are these words related to teeth?
enamel- эмаль
calcium- кальций
toothpaste with
fluoride – зубная паста с фтором
milk teeth – молочные зубы
permanent
teeth – постоянные зубы
tooth decay – разрушение зубов
acid bacteria – кислотные бактерии
Слайд 3Look at the diagram of a tooth. What are the
words used to label the diagram in your language?
Слайд 4Study the words:
crown – коронка
root – корень
dentin – дентин
cementum –
цемент
gum – десна
pulp – пульпа, мякоть зуба
jaw bone – челюстная
кость
Слайд 5Ex.2 b, p. 116
Check your answers:
1 crown
4 jaw bone 7 pulp
2 root
5 enamel 8 cementum
3 gum 6 dentin
Слайд 6Ex. 2 c, p.116
fastens: keeps something in place
outer: the outside
of
substance: material
layer: level, part
blood vessels: the narrow tubes that blood
flows through
nerve: long thin fibres that send messages to the brain/body
securely: tightly, safely
Слайд 8Ex. 3 c, p.116
bite : use teeth to cut into
sth
grasp: hold firmly
tear: pull into pieces
chew: use teeth to break
up food in your mouth
grind: crush