National Geographic Channel reveals the latest findings in fetal development.
國家地理頻道揭露關於胎兒成長的最新發現。
Mother Nature usually
intends the womb
to be a
hospitable environment where life can
flourish and grow without problems before birth. But what if you are one of nature's
unparalleled killing machines? National Geographic Channel's In the Womb: Extreme Animals tells the story of how
menacing sharks begin to develop their
snouts that can eventually track
prey from up to five kilometers away. In what scientists call
embryonic cannibalism, sand sharks use
predatory instincts and their teeth to
hunt down and kill
siblings while still inside the womb. This means that only the strongest of many
embryos will actually make it into the outside world.
Daphne and Barbara are two women who didn't know each other for 40 years, but are now realizing how
coincidental their lives have actually been. At the age of 14, both women left school.
In their twenties, Daphne and Barbara got married to childhood sweethearts and even
suffered miscarriages at the same age. When they met for the first time, they were wearing nearly
identical clothing. This strange set of
coincidences is made
all the more bizarre when National Geographic Channel reveals that Daphne and Barbara are
identical twins that were
separated at birth. They have
had no contact with each other for 40 years, were raised by very different families, but are
strikingly similar in
manner and actions. The series, In the Womb: Identical Twins, tries to explain one of
reproductive science's greatest mysteries—the question of nature
versus nurture.
It's not surprising that two people
split from the same
fertilized egg
retain a close physical appearance, but how far does the influence of genes reach beyond physical looks? National Geographic Channel
unravels some of the
perplexing riddles of Mother Nature while using
state-of-the-art 4-D ultrasounds as well as high
definition visual effects with In the Womb: Identical Twins.
1. What is the main topic of the first paragraph?
(A) The birth and death of a shark.
(B) A shark's amazing sense of smell.
(C) Sharks eating their siblings inside the womb.
(D) An
account of a shark's
dental growth.
2. What does the word unparalleled in the first paragraph mean?
(A) First-hand.
(B) Second-rate.
(C)
Unmatched.
(D)
Unaccountable.
3. Why is the story of Daphne and Barbara so strange?
(A) They hadn't seen each other since they were 14 years old.
(B) Daphne knew exactly what Barbara was going to wear.
(C) They both had children born on the same day.
(D) Even though they were identical twins that had never met, their lives have been similar.
4. According to the passage, what is one of nature's greatest mysteries?
(A) Are genes or personal experiences more important to someone's development?
(B) Why do identical twins have a strikingly similar appearance?
(C) How does the time of day someone is born affect them?
(D) Could a human be turned into a killing machine?
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