unit
D. city
following passages and choose the best answer for each blanket
WHY DO ANIMALS GO EXTINCT?
Different kinds of animals have appeared and disappeared throughout Earth's
history. Some animals go extinct (5)
climate may become wetter or drier. It may become warmer or cooler. If the animals
the climate where they live changes. The
cannot change, or adapt, to the new climate, they die. (6)
because they cannot compete with other animals for food. Some animals go extine
animals go extinc
because they are killed by enemies. New kinds of animals are always evolving. Evolvin
means that the animals are changing from generation to generation. Small (7)
between parents, children, and grandchildren slowly add up over many
generations. Eventually, (8)
different kind of animal evolves. Sometimes mar
of the animals on Earth go extinct at the (9)
time Scientists call this a ma
extinction. Scientists think there have been at least five mass extinctions in Barth
history. The last mass extinction happened about 65 million years ago. This ma
extinction killed off the dinosaurs.
man
Question 5. A. although
Question 6. A. All
Question 7. A. different
Question 8. A. a
Question 9. A same
B. because
B. Any
B. difference
B. an
B. similar
C. the
C. because of
C. Some
C. differences
C. different
D. in spite of
D. Much
D. differently
D. no article
D. various