7 . 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．It is comfortable to use.

B．The listeners talk aloud.

C．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. Which side of the island are the forests in?

A．The north side.

B．The west side.

C．The south side.

4. What is the talk mainly about?

A．Having a ride in a plane.

B．Learning about a volcano.

C．Taking photos of forests.

8 . 阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

My family and I have managed     1     (cross) the North American continent, from western to eastern Canada in two weeks! I can’t wait to share the stories     2     you.

We started from Vancouver in a home on wheels with Dad driving.     3     he has such     4     poor sense of direction that we had got lost many times before we finally crossed the Rocky Mountains to see fantastic view. On the     5     (eight) day, we reached Quebec, where the funniest thing happened. Dad left Mom behind after     6     (get) some petrol and it was not until mom called that we realized it! To cheer my mom up, we     7     (go) to a typical Quebec restaurant for some delicious French food.

Now we’re in the very eastern part of Canada. We went on a boat trip yesterday in celebration of our trip. My mom dropped Dad’s phone into the sea when seeing an     8     (amaze) killer whale, which drove Dad mad.     9     (luck), we met another family from Quebec who will send some great     10     (photo) of the whale to us.