3 . 听下面一段独白，回答以下小题。
1. Why does the speaker use the headphone to communicate with the listeners?

A．Because it is comfortable to use.

B．Because the listeners talk aloud.

C．Because the sound of the plane’s engine is loud.

2. What is the cause of the dark sky?

A．The night time.

B．The thick clouds.

C．The black smoke.

3. What is the talk mainly about?

A．Having a ride in a plane.

B．Learning about a volcano.

C．Taking photos of forests.

7 . 听下面一段独白，回答以下小题。
1. How many children star in the show?

A．3．

B．4．

C．5.

2. What is Benny Bubbles’ superpower?

A．He can fly in the sky.

B．He can create force field.

C．He can operate unusual devices.

3. What do the young kids do?

A．They run a school.

B．They control everything.

C．They help the community.

4. What does the creator want to tell by the show?

A．Working hard at school.

B．Learning to be independent.

C．Applying science to daily life.

8 . 听下面一段较长对话，回答以下小题。
1. What happened to David Edward when he was 10?

A．He was lost.

B．He suffered a serious disease.

C．He became disabled.

2. What helped David Edward change his attitude towards life?

A．A video.

B．An article.

C．An interview.

3. What do the speakers most probably think of David Edward?

A．Honest.

B．Talented.

C．Inspiring.