Help me please English

1 Although he was lacking in experience, it didn't stop him from attempting to reach the summit with the other climbers.

2 The teacher warned the students about the dancers of getting lost in the remote mountain range.

3 The doctors were amazed that Julie only had a few bruises after she lost control of her boat and went over the waterfall and crashed into the rocks in the river below.

4 The purpose of this equipment is to detect whether a volcano is active and might explode.

5 This company specialises in tours for people who want to explore California and the west coast of the USA.

6 There was something wrong with my skis, so I wasn't able to easily ski down the slope.

7 We were looking for shelter from the rain when I fell over the edge of the cliff and my climbing partner had to rescue me with a rope.

8 Hang on a minute. I think we're lost. I don't feel very optimistic about this route. Are you sure we're on the right path?