[单项选择]What is one function of sensory nerve cells
A. To move the muscles.
B. To detect light.
C. To protect the nerves.
D. To soothe the brain.

[单项选择]Why do nerve cells have fibres
A. To reproduce themselves.
B. To stretch and grow.
C. To attach themselves to muscle.
D. To carry messages.

[单项选择]How many kinds of nerve cells are discussed in this talk
A. One.
B. Two.
C. Three.
D. Four.

[单项选择]Of 100 billion nerve cells in the human brain, how many form after birth For years, the official answer was "zero". Scientists thought people were born with all the neurons they’d ever have. But from 1980s, biologists overturned that doctrine, finding a reservoir of stem cells that became fresh neurons in two parts of the brains of adult birds, monkeys and humans. Those discoveries were stunning, but the next seemed to top them all. In 1999, psychologist Elizabeth Gould reported large numbers of new nerve cells in a third of the monkey brain, hinting that the same part in humans—the neocortex, which lets us reason and remember—was regenerating, too. If she was right, scientists would have to revise almost all their ideas about human memory, and doctors might someday find a way to treat Alzheimer’s patients by simply turning on the neural-construction equipment.
The birth of new nerve cells, or "neurogenesis", is now confirmed in the original two parts of human brain, the hippocamp
A. The human brain contains 100 billion nerve cells.
B. The nerve cells can be generated after birth.
C. The nerve cells can’t be generated after birth.
D. The human brain has a reservoir of stem cells.

[单项选择]

According to the man, what one needs to do in order to enjoy beautiful things
A. One has to be a millionaire.
B. One has to be keen on things around him.
C. One has to go to Paris.
D. One has to go to Vienna.

[填空题]What can one use when one wants to buy stamps in some post offices
One can use（）.

[单项选择]What is one problem that the speaker emphasizes
A. Rising sea levels
B. Deceased fish
C. Unproductive farming
D. Unhealthy drinking water

[单项选择]What becomes one of the most important issues for President Obama to deal with（　）.
A. The burying of drugs in Phoenix.
B. The illegal immigration from Mexico.
C. The drug war in Mexico.
D. The severe kidnapping problem on the border.

[填空题]According to the passage, what was one disadvantage of residential expansion

[单项选择]What is one of the problems facing POP agencies
A. There is a shortage of retail space.
B. There are insufficient POP specialists.
C. There is not enough interest in the medium.