C.The course of nature will not be changed by human interference.
D.The turtle population has decreased in spite of human protection.
3. What constitutes a major threat to the survival of turtles according to Elizabeth Griffin?
A.Their inadequate food supply.
B.Unregulated commercial fishing.
C.Their lower reproductively ability.
D.Contamination of sea water
4. How does global warming affect the survival of turtles?
A.It threatens the sandy beaches on which they lay eggs.
B.The changing climate makes it difficult for their eggs to hatch.
C.The rising sea levels make it harder for their hatchlings to grow.
D.It takes them longer to adapt to the high beach temperature.
5. The last sentence of the passage is meant to ________.
A.persuade human beings to show more affection for turtles
B.stress that even the most ugly species should be protected
C.call for effective measures to ensure sea turtles survival
D.warn our descendants about the extinction of species
Passage Two
There are few more sobering online activities than entering data into college-tuition calculators and gasping as the Web spits back a six-figure sum. But economists say families about to go into debt to fund four years of partying, as well as studying, can console themselves with the knowledge that college is an investment that, unlike many bank stocks, should yield huge dividends.
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