3 . 听下面一段独白，回答以下对话。
1. What is the speaker doing?

A．Doing a survey.

B．Conducting a lecture.

C．Recommending an exercise.

2. How many days do inactive people feel bad per year on average?

A．35.

B．43.

C．53.

3. What sport might have more positive effect?

A．Basketball.

B．Cycling.

C．Running.

4. What seems to be the speaker’s opinion?

A．A perfect balance is a must while exercising.

B．A right type of exercise is more important.

C．Any exercise is better than no exercise.

4 . 听下面一段独白，回答以下小题。
1. What is the subject of Anna's paintings?

A．Cities.

B．Nature.

C．Buildings.

2. Why does Anna sometimes travel by small plane?

A．To help reach the spot.

B．To attend exhibitions.

C．To take pictures.

3. What makes Anna's paintings most unusual?

A．Different shades of colors.

B．The large size.

C．Skills of picturing light.

4. What does Anna plan to do?

A．Write some short stories.

B．Publish some articles.

C．Design some postcards.

5 . 听下面一段独白，回答以下小题。
1. When did Erden probably start his journey?

A．In2012.

B．In 2007.

C．In 2015.

2. Why didn't Erden climb all the six highest mountains?

A．He was short of money.

B．His health condition was bad.

C．The weather on the mountains was terrible.

3. How did Erden travel around the world most of his time?

A．On foot.

B．By car.

C．By boat.

4. What does Erden want to do right now?

A．Study Spanish.

B．Have a rest.

C．Plan for more trips.