听材料，回答下列各题：

　　12、

　　A.There aren't enough cabinets

　　B.There is too much noise.

　　C.Office supplies are taking up space.

　　D.Some teaching assistants don't have desks.

　　13、

　　A.To chat with him socially.

　　B.To get help with the course.

　　C.To hand in their assignments.

　　D.To practise giving interviews,

　　14、

　　A.They'd have to get permission.

　　B.Jack wouldn't like it,

　　C.She thinks it might work.

　　D.Other assistants should be consulted

　　15、

　　A.Give Jack a different office,

　　B.Complain to the department head.

　　C.Move the supplies to the storage room.

　　D.Try to get a room to use for meetings.

　　Passage One.

　　听材料，回答下列各题：

　　16、

　　A.Because of its shape.

　　B.Because of its skin.

　　C.Because of its size.

　　D.Because of its behavior.

　　17、

　　A.How sea animals manage to exist,

　　B.How large sea animals can be.

　　C.How frightening the squid is,

　　D.How little is known about the sea.

　　18、

　　A.Why it is difficult to use aerial photographs in research.

　　B.Why oceanic research is so limited.

　　C.How oceanic research has helped land research,

　　D.How fossil remains are obtained from deep sea.

　　Passage Two.

　　听材料，回答下列各题：

　　19、

　　A.New varieties of corn have been developed.

　　B.The crops need less fertilizer.

　　C.Farmers can now monitor crop growth.

　　D.Crop yields are much greater.

　　20、

　　A.It's being drained from Nebraska to Texas.

　　B.It's being pumped out.

　　C.It's becoming contaminated with oil.

　　D.It's becoming much warmer.

　　21、

　　A.It can be seen from an airplane.

　　B.It's most likely polluted.

　　C.It's usually a bright green color.

　　D.The supply of it may be exhausted soon.

　　Passage Three.

　　听材料，回答下列各题：

　　22、

　　A.To review what students know about volcanic activity.

　　B.To demonstrate the use of a new measurement device.

　　C.To explain the answer to an examination question.

　　D.To provide background for the next reading assignment.

　　23、

　　A.They occur at regular intervals.

　　B.They can withstand great heat.

　　C.They travel through the Earth's interior.

　　D.They can record the Earth's internal temperature.

　　24、

　　A.When the Earth was formed.

　　B.The composition of the Earth's interior.

　　C.Why molten rock is hot.

　　D.How often a volcano is likely to erupt.

　　25、

　　A.How deep they are.

　　B.Where earthquakes form.

　　C.How hot they are.

　　D.What purpose they serve.

　　听材料，回答下列各题：

　　Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks with the exact words you have just heard. Finally, when the passage is read for the third time, you should check what you have written.

　　Teenagers will be told to "stand up for their elders" on public transport-or risk losing their right to free travel.

　　London Mayor Boris Johnson will 26_________ plans today to make youngsters sign a " 27_________ pledge" to promise to behave in a 28 _________manner when travelling in the capital.

　　The three-point pledge states that they will give up their seats to the elderly, 29_________ and disabled; refrain from using 30_________ or threatening language; and be courteous and polite to fellow passengers and staff.

　　Those who refuse, or are caught behaving in a rude manner, will have their free travel passes 31_________

　　The plan--a key part of Mr. Johnson's re-election bid--will initially affect the 400,000 11-to-15-year-olds in London who qualify for free travel cards, but Conservative sources believe the idea could be used across the country.

　　A Conservative insider said, "The initiative 32_________ the push to create a Big Society. It is about changing culture and 33 _________around behavior to improve the atmosphere on buses and trains for everyone. "

　　Speaking before today's launch, Mr. Johnson said he 34_________ tackle the anti-social behavior of a "minority of youngsters" on public transport.

　　"when I was a boy, I was taught to stand up for those less able to," he said. "Youngsters enjoy the privilege of free travel, which is paid for by Londoners, but they have to understand that with that privilege comes responsibility. "

　　Anyone who abuses this privilege will have it taken away, and will have to earn that right back.

　　Teenagers who are found 35_________ violating the new behavior code will lose their travel passes. They will have to carry out unpaid community work to have them restored.

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