by Marcus Maurice
This petite bird is actually pretty powerful.
這種嬌小可愛的鳥類其實相當有力。
Hummingbirds are the smallest birds on Earth, and they are also the most
fascinating. Hummingbirds live in the Americas, with a _(1)_ in Central and South America. The life of an
active little hummingbird
revolves around getting food. On a
regular day, one hummingbird will visit _(2)_ 1,000 flowers to find
nectar. To
ensure that they get enough
protein in their diet, they also
prey on spiders in their webs and small insects.
_(3)_, a human's heart beats 72 times per minute. While doing something
strenuous, that number can
double. Hummingbirds' heartbeats, however, can get all the way _(4)_ 1,260 beats per minute. This is because they
flap their wings
incredibly fast when they fly, never stopping. Hummingbirds are the only birds _(5)_ wings can move in a complete
circle. This _(6)_ them to fly
forwards,
backwards,
sideways, and even
upside down. They can also move their wings in a
figure eight shape so they can
hover in the air like a
helicopter.
Like most birds, hummingbirds dislike cold weather and _(7)_ south for the winter. This is most
impressive for birds from North America, which travel all the way to Central America. Canadian hummingbirds travel the farthest, flying 4,000 kilometers to reach a warmer environment. On one
leg of the journey, the hummingbirds fly over 1,000 kilometers without stopping at all. Don't
underestimate the
diminutive hummingbird: it's more powerful than it looks!
1. (A) plenty (B) capacity (C) majority (D) popularity
2. (A) barely (B) roughly (C) practically (D) relatively
3. (A) On average (B) On the spot (C) Above all (D) At one time
4. (A) as much as (B) such as (C) to and fro (D) up to
5. (A) what (B) which (C) whose (D) their
6. (A) forces (B) enables (C) makes (D) lets
7. (A) migrate (B) immigrate (C) explode (D) expand
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