摘要: If you want to take a bus in evening rush hours, you should take the bus at the Railway Station, New York City on Monday? A. 6 : 20 p.m. B. 5: 45 p.m. C. 8: 00 p.m. D. 7 : 15 p.m. 答案: B 指导:公共汽车在晚上交通高峰期每15分钟一班.从下午5点到晚上7点. Passage 5 Meteorite ALH840典型例题 studied by a research team led by scientists at NASA and Stanford University. Using high-powered microscopes and other laboratory tests, the researchers found clues that they think were left by living things. One clue is a collection of flat, hard orange globe of carbon lining the insides of the cracks in the rock. These depos- its look like the carbon globules made by some kinds of bacteria . They might have been left by tiny life forms, or they might have been made by hot vapors carrying carbon dioxide. With these carbon globules is another piece of evidence, a group of chemicals called PAHS. These chemicals can be formed in space or when living things die and change into fossils So the PAHs in the meteorite might have come from ancient Martian life. Rings of tiny crystals around the carbon globules make up the third mineral clue. These crystals are made of iron and sul- phur (硫)joined together in compounds that are like chemicals in some of Earth's bacteria. But similar crystals can also be made by chemical reactions that can happen without life forms to carry them out. A fourth sign of life is a series of microscopic rounded shapes that look like fossils of bacteria. But to some scientists, these shapes may be too small to be the remains of living things. The NASA team does not say these clues are proof of life on Mars. Any.of these clues might have been placed in the rock without the help of living creatures. But they claim the idea of Martian life is the simplest way to explain them, They say it would take a lot of coincidences to place all of these dues together in the Martian rock. These scientists have challenged others to help them search for more evidence to prove that their ideas are either right or wrong. And research that might help answer this question is already 'under way. NASA has planned ten new missions to Mars over the next ten years and launched two of them last fall. They are called Mars Global Surveyor and Mars Pathfinder. Several of the experiments on these spacecraft will search for clues to answer one of the greatest questions of our time. Are we alone in the universe?

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阅读理解

A Notice About Time Table

  The following notice is posted(张贴)in a bus terminal(终点站).

  Time Table:

·Buses leave the Railway Station. New York City, from 7∶00 a.m. and every half-hour there-after(此后), until 11∶36 p.m.(7 days a week)

·Buses leave Brennan Station 20 minutes before and after every hour from 6∶20 a.m. to 10∶40 p.m.(7 days a week)

·Evening rush hours(5∶00 p.m. to 7∶00 p.m.): Buses leave the Railway Station, New York City, every 15 minutes.(Monday—Friday)

·Holidays: Buses leave every hour on the hour, each direction.(Trip time: 30 minutes each way)

All tickets must be bought at Window 12, the Railway Station, New York City, or at the Brennan Window BEFORE boarding buses.

1.At which of the following times does a bus leave New York for Brennan on Thursday?

[  ]

A.8∶30 a.m.
B.10∶15 a.m.
C.3∶15 p.m.
D.11∶45 p.m.

2.Which is the latest bus you could take from Brennan if you had to meet a friend in New York at 10∶20 a.m. on a Friday?

[  ]

A.The 8∶00 a.m. bus.

B.The 9∶40 a.m. bus.

C.The 8∶40 a.m. bus.

D.The 9∶20 a.m. bus.

3.If you want to take a bus in evening rush hours, you should take the ________ bus in the Railway Station, New York on Monday.

[  ]

A.6∶20 p.m.
B.5∶45 p.m.
C.8∶00 p.m.
D.7∶15 p.m.

4.The underlined word“boarding”in the last sentences means ________.

[  ]

A.上车
B.下车
C.看见
D.离开

5.Where should passengers buy their tickets?

[  ]

A.From the bus driver before boarding the bus.

B.On the bus after boarding the bus.

C.At the window with the above notice.

D.At a terminal ticket window. 查看习题详情和答案>>

阅读理解

  The following notice is posted in bus terminal(终点站).

  Time table:

  ——Buses leave the Railway Station, New York City, from 7:00 a. m. and every half hour thereafter(此后), until 11:30 p. m. (7 days a week)

  ——Buses leave the Brennan Station 20 minutes before and after every hour from 6:20 a. m. to 10:40 p. m. (7 days a week)

  ——Evening rush hours (5:00 p. m. to 7:00 p. m. ): Buses leave the Railway Station, New York City, every 15 minutes. (Monday~Friday)

  ——Holidays: Buses leave every hour on the hour, each direction. (Trip time: 30 minutes each way)

  ——All tickets must be bought at Window 12, the Railway Station, New York City, or at the Brennan Station Window BEFORE boarding buses.

(1)At which of the following times does a bus leave New York for Brennan on Thursday?

[  ]

A.8:30 a. m.     B.10:15 a. m.

C.3:15 p. m.     D.11:45 p. m.

(2)Which is the latest bus you could take from Brennan if you had to meet a friend in New York at 10:20 a. m. on a Friday?

[  ]

A.The 8:00 a. m. bus.

B.The 9:40 a. m. bus.

C.The 8:40 a. m. bus.

D.The 9:20 a. m. bus.

(3)If you want to take a bus in evening rush hours, you should take the ________ bus at the Railway Station, New York City on Monday.

[  ]

A.6:20 p. m.     B.5:45 p. m.

C.8:00 p. m.     D.7:15 p. m.

(4)Where should passengers buy their tickets?

[  ]

A.From the bus driver before boarding the bus.

B.On the bus after boarding the bus.

C.At the window with the above notice.

D.At the terminal ticket window.

查看习题详情和答案>>

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