Choose the correct answer
----- Nội dung dịch tự động từ ảnh -----
runy, anu tucu aus
It's very important to have healthy teeth. Good teeth help us chew our food. They
4
also help us look nice. How does a tooth go bad? The decay begins in a little crack in the
enamel covering of the tooth. This happens after germs and bit of food have collected
there. Then the decay slowly spreads inside to the tooth. Eventually, poison goes into the
blood, and we may feel quite ill.
How can we keep our teeth healthy? First, we ought to visit the dentist twice a
year. He can fill the small holes in our teeth before they destroy the teeth. He can examine
our teeth to check that they are growing in the right way.
KEEPING OUR TEETH HEALTHY
Secondly, we should brush our teeth with a toothbrush and fluoride toothpaste at
least twice a day-once after the breakfast and once before we go to bed. We can also use
wooden toothpicks to clean between our teeth after a meal.
36. Good teeth help us
A. be nice
Thirdly, we should eat food that is good for our teeth and our body: milk, cheese,
fish, brown bread, potatoes, red rice, raw vegetables, and fresh fruits. Chocolates, sweets,
biscuits and cakes are bad, especially when we eat them between meals. They are harmful
because they stick to our teeth and cause decay.
our food.
B. have good eyesight
C. chew
37. When food and germs collect in a small crack, our teeth
A. become hard
C. begin to decay
38. A lot of people visit the dentist only when
A. their teeth grow properly
B. they have holes in their teeth
C. they have toothache
D. they have brush their teeth
39. We ought to clean our teeth
A. After breakfast
C. before bedtime
40. We shouldn't eat a lot of
A. red rice
B. fresh fruit
B. send poison into the blood
D. make us feel quite ill
B. before breakfast
D. Both A &C
D. be important
C. fish
D. chocolate
runy, anu tucu aus
It's very important to have healthy teeth. Good teeth help us chew our food. They
4
also help us look nice. How does a tooth go bad? The decay begins in a little crack in the
enamel covering of the tooth. This happens after germs and bit of food have collected
there. Then the decay slowly spreads inside to the tooth. Eventually, poison goes into the
blood, and we may feel quite ill.
How can we keep our teeth healthy? First, we ought to visit the dentist twice a
year. He can fill the small holes in our teeth before they destroy the teeth. He can examine
our teeth to check that they are growing in the right way.
KEEPING OUR TEETH HEALTHY
Secondly, we should brush our teeth with a toothbrush and fluoride toothpaste at
least twice a day-once after the breakfast and once before we go to bed. We can also use
wooden toothpicks to clean between our teeth after a meal.
36. Good teeth help us
A. be nice
Thirdly, we should eat food that is good for our teeth and our body: milk, cheese,
fish, brown bread, potatoes, red rice, raw vegetables, and fresh fruits. Chocolates, sweets,
biscuits and cakes are bad, especially when we eat them between meals. They are harmful
because they stick to our teeth and cause decay.
our food.
B. have good eyesight
C. chew
37. When food and germs collect in a small crack, our teeth
A. become hard
C. begin to decay
38. A lot of people visit the dentist only when
A. their teeth grow properly
B. they have holes in their teeth
C. they have toothache
D. they have brush their teeth
39. We ought to clean our teeth
A. After breakfast
C. before bedtime
40. We shouldn't eat a lot of
A. red rice
B. fresh fruit
B. send poison into the blood
D. make us feel quite ill
B. before breakfast
D. Both A &C
D. be important
C. fish
D. chocolate