Flying High with Sugar Gliders叫我小飛俠

Meet a high-flyer with a taste for sweet treats.
The next time you find yourself in a forest in Australia, look up. You might just see a small, grey, furry mammal with big eyes sailing through the air. These animals are called sugar gliders. You'd be lucky to see one, _(1)_, because they are small, timid, and nocturnal.

If you do get a _(2)_ of a sugar glider, you might notice that when it is soaring through the tree tops, its skin stretches out between its arms and legs, almost in the shape of a square. This remarkable adaptation allows these animals to glide gently from tree to tree by increasing their surface area. Some sugar gliders can fly for distances of _(3)_ one hundred meters!

If you were gliding through a forest, you would probably not want to _(4)_ any trees. Fortunately, the sugar glider has a long tail to help it steer while gliding. It can also move its arms and legs to steer, and just before arriving at its destination, it brings its hind legs forward _(5)_ it can grab the tree trunk with all four limbs.

  Sugar gliders are a type of possum native _(6)_ Australia. They get their name from their _(7)_ for sweet foods like flower nectar, acacia gum, and the sap from eucalyptus trees, although they also eat insects. They rarely descend to the ground so as to avoid any predators that might be waiting there.

1. (A) therefore(B) though (C) otherwise (D) likewise
2. (A) scene (B) watch (C) vision (D) glimpse
3. (A) up to (B) next to (C) such as (D) as much as
4. (A) kick off (B) burst out (C) run into (D) go after
5. (A) in that (B) now that (C) except that (D) so that
6. (A) in (B) for (C) to (D) with
7. (A) emotion (B) preference (C) sympathy (D) frequency

1. You'd be lucky to see one, though, because they are small, timid, and nocturnal.
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