【推荐1】听下面一段较长对话，回答以下小题。
1. What are the speakers talking about?

A．How to improve our brain.

B．How to keep young.

C．How to practice muscles.

2. What’s the woman’s suggestion?

A．Join in more activities.

B．Slow down the life speed.

C．See a doctor.

【推荐2】听下面一段独白，回答以下小题。
1. How many people are damaging their hearing by listening to loud music?

A．1.1 billion

B．2 billion

C．3 billion

2. How long should people listen to music?

A．More than 2 hours a day

B．Less than one hour a day

C．About 3 hours a day

3. How do loud sounds damage your hearing?

A．By listening to them unsafely.

B．By confusing your hearing system.

C．By killing off little hair cells in the inner ear.

4. What’s the characteristic of the cells?

A．They don’t grow back

B．They can grow back soon.

C．They can never be destroyed.

【推荐3】听下面一段较长对话，回答以下小题。
1. What’s the probable relationship between the speakers?

A．Teacher and student.

B．Doctor and patient.

C．Friends.

2. What does the man suggest the woman do?

A．Buy a pair of glasses.

B．Improve her English.

C．Get a physical checkup (检查).