1 . 听下面一段独白，回答以下小题。
1. Why did the speaker join the nature club?

A．The science club was full.

B．He was interested in nature.

C．Some classmates invited him.

2. What is the source of 25% of modern medicines?

A．The ocean.

B．The field.

C．The rainforest.

3. How much fresh water can be used by human?

A．Ninety-seven percent.

B．Three percent.

C．One third.

2 . 听下面一段较长对话，回答以下小题。
1. What is the relationship between the speakers?

A．Host and guest.

B．Customer and waiter.

C．Teacher and student.

2. What does Max study at Stanford?

A．Music.

B．Literature.

C．Composition.

3. What inspired Max to make the album?

A．His desire to grow up.

B．His insight into music.

C．His mom’s love for music.

4. What will Max do with his future music?

A．Add new musical styles.

B．Release classical music albums.

C．Cooperate with French composers.

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

A．Their weekend plans.

B．Their final exams.

C．Their dream jobs.

2. When does the man finish his shift on Sundays?

A．At 3 pm.

B．At 8pm.

C．At 9 pm.

3. Why does the man work part-time?

A．To live independently.

B．To raise his family.

C．To save for his college.

4. What is the woman advised to do?

A．Study overnight.

B．Postpone job hunting.

C．Plan in advance.