《2025年活动单导学课程高中英语选择性必修第一册译林版》

Ⅰ. Choose the best answers to the following questions according to the text.
(B) 1. When we are born, we gain three quarters of the essential microorganisms from our mother.
A. half
B. three quarters
C. one third
D. two per cent
(C) 2. How many microorganisms in and on our body can be seen with our eyes?
A. 39 trillion.
B. 0.78 trillion.
C. None.
D. Almost all of them.
(D) 3. Microorganisms can affect our physical health in all of the above.
A. our immune system
B. our weight
C. our sleep patterns
D. all of the above
(A) 4. The composition of our gut microbiome functions significantly in regulating our body weight.
A. regulating our body weight
B. controlling our appetite
C. improving our immune system
D. keeping up our spirit in the day
(C) 5. Which of the following in our body can protect our health from being invaded and harmed?
A. The gut microbiome.
B. Bacteria and viruses.
C. Resident microorganisms.
D. Both A and B.

答案： 1—5 BCDAC

Ⅱ. Answer the following questions according to the text.
1. How is a part of our microbiome changed every day?
2. What should we do to enhance our psychological health?
3. What benefits could “microbiome vaccines” provide?

答案： 1. Our further exposure to foreign microorganisms causes a part of our microbiome to change every day.
2. We should take good care of our gut microorganisms so as to improve our cognitive capabilities and enhance our psychological health.
3. “Microbiome vaccines” could get rid of current health issues like obesity and malnutrition so that human beings can keep themselves in good health.