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Metro Pocket Guide
Metrorail(地铁)
Each passenger needs a farecard to enter and go out. Up to two children under ago five may travel free with a paying customer.
Farecard machine are in every station. Bring small bills because there are no change machines in the station and farecard machine only provide up to $ 5 in change.
Get one of unlimited Metrorail rides with a One Day Pass. Buy it from a farecard machine in Metro stations. Use it after 9:30 a.m. until closing on weekdays, and all day on weekends and holidays.
Hours of Service
Open: 5 a.m. Mon—Fri                      7a.m. Sat—Sun.
Close: midnight Sun—Thur.                  3a.m. Fri—Sat. nights 
Last train time vary. To avoid (避免) missing the last train, please check the last train time posted in the station.
Metrobus
When paying with exact change, the fare is $ 1.35 . when paying with a SmarTrip card the fare is $1.25.
Fares for the Senior /disabled customers
Senior citizens 65 and older and disabled customers may ride for half the regular fare. On Metrorail and Metrobus, use a senior/disabled farecard or SmarTrip card. For more information about buying senior/disabled farecards, or SmarTrip cards and passes, please visit MetroOpenDoors.com or call 202-637-7000 and 202-637-8000.
Senior citizens and disabled customers can get free guide on how to use proper Metrobus and Metrorail services by calling 202-962-1100
Travel tips
·Avoid riding during weekday rush periods –before 9:30 a.m. and between 4 and 6 p.m.
·If you lose something on a bus or train or in a station, please call Lost & Found at 202-962-1195.
64. What should you know about farecard machines?
  A. They start selling tickets at 9:30 a.m.           
B. They are connected to change machines.
  C. They make change for no more than $5.         
D. They offer special service to the elderly.
65. At what time does Metrorail stop service on Saturday?
  A. At midnight                        B. At 3 a.m.      
C. At 5 a.m.                          D. At 7 p.m.
66. What is good about a SmarTrip card?
A. It is convenient for old people         B. it can be bought at any time 
C. It saves money for its users           D. it is sold on the Internet.
67. Which number should you call if you lose something on the Metro?
A.202-962-1100                      B. 202-962-1195
C.202-673-7000                      D.202-673-8000

 

D
People born in winter are more likely to suffer mental health disorders, according to a recent study carried out by researchers at Vanderbilt University in Tennessee.
Researchers raised baby mice from birth to weaning (断奶) in either “summer” light cycles of 16 hours of light and 8 hours of dark or “winter” cycles of 8 hours of light and 16 hours of dark. A third group experienced 12 hours of light and 12 hours of dark a day.
Then half the winter mice stayed in a winter cycle, while half switched to a summer schedule. The summer mice were similarly split. The mice raised in equal periods of light and dark were split into three groups, one of which stayed on the 12­hour schedule, one of which joined the winter group, and one of which joined the summer group.
After 28 days, it turns out the summer­born mice behaved the same whether they stayed on the summer cycle or switched to winter. But among the winter­born mice, those stayed in winter kept their previous schedule, while those that switched to summer stayed active for an extra hour and a half, which indicates that mice born and weaned in a winter light cycle showed dramatic disruptions in their biological clocks.
The finding is the first of its kind in mammals, and it could explain why people born in winter are at higher risk for mental health disorders including bipolar depression, schizophrenia and seasonal affective disorder.
“We know that the biological clock regulates mood in humans，”said study researcher McMahon. “If the mechanism (机制) similar to the one that we found in mice operates in humans, then it could not only have an effect on a number of behavioral disorders, but also have a more general effect on personality.”
68. How many groups of mice are there finally in all in the experiment?
A. Seven.       B. Six.             C. Five.        D. Four.
69. What's the main idea of the text?
A. The biological clock regulates mood in humans.
B. People born in winter are at higher risk for physical health disorders.
C. The length of light will influence the behavior of the mice.
D. Being born in winter has a negative effect on people's mental health.
70. The underlined word “split”(Paragraph 3) can be replaced by ________.
A. ended        B. divided          C. hit           D. torn
71. Who is the appropriate reader of the passage?
A. A job­hunter.                       B. A student in the university.
C. A newly­married couple.              D. An experienced dentist.
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