IV. Read and answer these following questions.
HOW CAN WE KEEP OUR TEETH HEALTHY
Firstly, we ought to visit our 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. Unfortunately, many people wait until they have toothache before they see a dentist.
Secondly, we should brush our teeth with a toothbrush and fluoride tooth paste at least twice a day – once after breakfast and once before we go to bed. We can also use wooden toothpicks to clean between our teeth after a meal.
Thirdly, we should eat food that is good for our teeth and our body such as milk, cheese, fish, brown bread, potatoes, red rice, raw vegetables, and fresh fruit. Chocolate, 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.
15. How often should we visit our dentist a year?
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16. What should we brush our teeth with?
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17. What else we can use to clean between our teeth after a meal?
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18. What kinds of food are good for our teeth?
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19. What kinds of food are bad for our teeth?
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VI. Reorder the words to make the meaningful sentences
20. hard – working/ is/ but/ her/ is/ lazy/ ./ She/ very/ brother ____________________________________________________________
21. does / always/My mother/the grocery shopping.
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22. We/watch/often/TV/after dinner.
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23. students / their/homework/usually/The/do.
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Sinh Học lớp 12
