Lesson 2:Friends of foes
1. Yeast酵母菌 can help to make food such as:
a.bread
b.tapai
c.tempeh
2.Some bacteria can be used to make
a. cheese
b. yogurt
3. Fungi are used to produce antibiotics抗生素
4. Bacteria and fungi cause dead organism to decay腐烂 to form
natural fertilizers天然肥料
5. There are some harmful坏处 effects of microorganism
a. can cause illness生病
b. cause food poisoning食物中毒
c. cause tooth decay形成蛀牙
d. cause the foods turn bad
6.Harmful microorganism can cause many type of disease
a. measles
b. mumps
c. conjunctivitis
d. chicken pox
7. How diseases spread传染 from one person to another?
a. through food and drinks
b. coughing
c. direct contact
d. carried by mosquitoes or flies
8. We can prevent disease from spreading
a. wash your hand before handing food
and after using the toilet
b. drink water that has been boiled
c. cover your mouth when coughing
d.do not share personal items私人用品
e. cover your wound伤口
