Page 262 - Grammar Explorer 2 - demo

LESSON 2 Adverb Clauses: Cause and Contrast

EXPLORE

1 READ the article about a volcano in Africa. Notice the words in bold.
CD3-04 Dem. Rep.
of the
Congo
Volcano Watching

Although Mount Nyiragongo in the Democratic Republic of the Congo looks
beautiful, it is very dangerous. It is dangerous because it is an active volcano. It
erupted in 1977 and again in 2002. In 2002, 147 people died because of the eruption.
1
Scientists are studying Mount Nyiragongo very closely. They want to know when it
will erupt again. This information is very important since nearly a million people live
nearby in the city of Goma.
Ken Sims is a scientist who studies volcanoes. Even though it was very dangerous,
in 2010 Sims and his team climbed down into the crater of Mount Nyiragongo. Sims
2
made this journey because he wanted to collect new lava from the volcano. New lava
tells us more about the volcano than old lava. Sims hopes that the lava he collected will
help predict the next eruption.

1 erupt: explode
2 crater: a large hole in the ground or in the top of a volcano

View of lava from Nyiragongo
Volcano, Democratic Republic
of the Congo, Africa.

242 CONJUNCTIONS AND ADVErB CLAUSES
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