Стр.62 Модуль 2 ГДЗ Starlight Баранова 10 класс
- Look at the pictures. How many of these foods/drinks can you identify? Which ones have a sharp, acid taste?
- Read the title of the article. What do you know about the topic?
- Do the quiz. Read and listen to check your answers.
- Which of these pH numbers indicates an acid?
A 12
B 8
C 4 - The thermometer in your fridge says 5°C. You should:
A turn it up.
B turn it down.
C leave it as it is. - To prevent bacteria from growing, food should be kept:
A warm and moist.
B cold and dry.
C warm and dry. - Bacteria are destroyed by:
A low temperatures.
B high temperatures.
C high acidity. - What is the ideal temperature for a home freezer?
A 0°C
B −18°C
C −72°C
4. Match the words in bold in the text to these definitions: Not active; rot; water; groups; space; a process between different substances; proteins; tools; conserving.
In pairs, ask and answer questions based on the text.
5. What have you learnt about the topic? Why does food go bad? What else would you like to learn? Work in groups. Collect information, then present it to the class.
- C 4
- B turn it down.
- B cold and dry.
- B high temperatures.
- B -18°C
Разбор
1) Acidic solutions have a pH value under 7, so 4 is correct.
2) If the fridge says 5°C, it is too warm for keeping food fresh, so you should turn it down.
3) Bacteria grow best in warm and moist conditions, so food should be kept cold and dry.
4) Bacteria are destroyed by high temperatures.
5) The ideal temperature for a home freezer is -18°C.
Ответ
Not active — dormant
rot — spoil
water — moisture
groups — colonies
pace — rate
a process between different substances — reaction
proteins — enzymes
tools — utensils
conserving — preserving
