Suggested answers:

(1). Volcanologists study volcanoes so that they can warn people when the volcano is going to erupt and so save many lives.

(2). Mount Kilauea is in Hawaii.

(3). The lava flows down the mountain and can cover up or burn villages in its path .The rocks that erupt from the volcano usually don't damage anything because no one lives near the crater.

(4). The light was caused by the red-hot rocks and gas that erupted from the volcano.

(5). The scientists needed get samples of the lava so they could study them.

(6). The author was wearing special protective clothing that made it difficult to walk.

(7). The author is impressed by the beauty of the eruption and also by its potential to cause great destruction.

2 Listen to the tape and deal with the language points in groups

Purpose: To train Ss' listening ability

　　　　To train Ss language capacity

1.consider思考，主要用于：

consider+名词/-ing形式：He is considering studying abroad. 他正在考虑出国留学。

consider + wh-: We considered how we should help them.我们仔细考虑应该如何帮助他们。

consider + 副词：Consider carefully before you decide.要慎重考虑后再作决定。

2.risk风险、危险。例如：

He was taking a risk by overtaking on a bend.他在转变处超车是在冒险。

The house is a fire risk.这房子有起火的危险。

3.burn to the ground指楼房等被烧毁。例如：

He has no place to live in because his house has been burnt to the ground.

他无处栖身因为他的房子被烧掉了。

短语联想

burn away烧掉: The wood had burnt away to nothing.木头已烧成灰烬。

burn down(建筑物)烧毁： The cinema burnt down last year.电影院去年被烧毁了。

The school was burnt down by vandals.学校被人纵火烧毁了。

burn off烧掉：He was badly injured in the accident, and all his hair was burnt off.

　　　　　　他在事故中严重受伤，头发也被烧掉了。

burn out烧坏：The engine bad burnt out. 引擎给烧坏了。

burn up烧毁、烧得更亮/旺：The rocket burnt up when it reentered the earth's atmosphere.

　　　　　　　　　　　　　火箭重入地球大气层时烧毁。

He put more wood on the fire to make it burn up. 他往火上加木材想让它烧得更旺。

4.make one's way(向某地)走（去）。例如：

　She hesitated ,but made her way forward.她犹豫了一下，但向前走去。

　She hastily left the room ,and made her way to her bed.她快速离开房间，朝她床边走去。

短语比较

make one's way 还表示"有出息"。例如：If you want to make your way in the world ,you must learn to work hard while you are still young.你若想要有出息，趁年轻的时候要学会发奋。

make way(for)让路、让位：

All the traffic has to make way for a fire engine.所有的车辆都得给救火车让道。

I shall make way for a younger man.我将把（职）位让给更年轻的人。

5.enthusiastic(about)感兴趣的、热心的。例如：

　She seemed enthusiastic about the idea.她好像对这个主意很感兴趣。

　We got an enthusiastic response from our customers.我们得到了顾客们的热情反应。

effort可用作不可数名词，表示"力气"，例如：