Meet Anna, a seventeen-year-old science star. She studies medicines to help sick people. Now she makes a new pill to replace acetaminophen (对乙酰氨基酚). Her pill works like acetaminophen but hurts livers (肝脏) less. Many people get liver problems from old pills. Anna tests her medicine carefully in her lab. She hopes her work will keep people healthier. Young minds can make big changes!

1.1. How old is Anna?

A 15 years old.

B 18 years old.

C 17 years old.

D

解析：选C。C 细节理解题。根据“Meet Anna, a seventeen-year-old science star.”可知，安娜17岁。故选C。

2.2. What is Anna making?

A A tool for hospitals.

B A new pill.

C A book about science.

D

解析：选B。B 细节理解题。根据“Now she makes a new pill”可知，安娜研制了一种新药。故选B。

3.3. Why is Anna’s pill better?

A It is safer for livers.

B It works faster.

C It tastes sweeter.

D

解析：选A。A 细节理解题。根据“Her pill works like acetaminophen but hurts livers less.”可知，这种药片起效方式与对乙酰氨基酚相同，但对肝脏的损伤更小。故选A。

4.4. Where does Anna test her medicine?

A In a hospital.

B In her lab.

C At school.

D

解析：选B。B 细节理解题。根据“Anna tests her medicine carefully in her lab.”可知，安娜正在实验室里对其药物进行严格测试。故选B。