1 . 听下面一段较长对话，回答以下对话。
1. What’s the man’s dream?

A．To be an artist.

B．To be a teacher.

C．To be a scientist.

2. What do we know about Copernicus’ theory?

A．It proved that the earth was still.

B．It was influenced by Newton and Einstein.

C．It is the basis of ideas about the universe today.

3. What was thought to be the center of the universe at the time of Copernicus?

A．The earth.

B．The sun.

C．God.

4. Why did Copernicus publish his theory when he was dying?

A．He wasn’t sure of his theory until then.

B．He was afraid of being punished.

C．His friends told him not to publish it.

2 . 听下面一段较长对话，回答以下小题。
1. What is wrong with Bill?

A．He is short of money.

B．He has made a big mistake.

C．He is facing a tough choice.

2. What does Bill currently do?

A．He studies at university.

B．He works as an engineer.

C．He serves at a gas station.

3. What does Grace advise Bill to do?

A．Focus on education.

B．Ask his aunt for advice.

C．Accept the well-paying job.

3 . 听下面一段对话，回答以下小题。
1. Where are the speakers?

A．In a restaurant.

B．In a classroom.

C．In an interview room.

2. What did the man dislike about Jessica’s answer?

A．She sounded too casual.

B．She spoke too slowly.

C．She looked nervous.

3. what has Jessica already done?

A．She’s graduated from high school.

B．She’s made the basketball team.

C．She’s worked as a waitress.

4. What is Jessica like?

A．She is very smart.

B．She is less confident.

C．She is very funny.

4 . 听下面一段较长对话，回答以下小题。
1. Where will the man work?

A．In Alaska.

B．In Washington.

C．In Utah.

2. What will the man do as a volunteer?

A．Protect sea animals.

B．Protect desert creatures.

C．Teach in a primary school.

3. How many times has the woman volunteered?

A．Once.

B．Twice.

C．Three times.

4. When will the man have a vacation?

A．In June.

B．In October.

C．In December.