题目内容
听力原文： There are many reasons why family life in Britain has changed so much in the last 50 years. The liberation of women in the early part of the 20th century and social and economic effects of the World War Two had a great impact on traditional family life. Women became essential to industry and the professions. During the war, they had worked in factories and proved their worth. Now, with the loss of millions of men, their services were indispensable to the nation. More recently great advances in scientific knowledge, and particularly in medicine have had enormous social consequences. Children are better cared for and are far healthier. Infant death rate is low. Above all, parents can now plan the size of their family if they wish through more effective means of birth control. Different attitudes to religion, authority and tradition generally have also greatly contributed to changes in family life. But these developments have affected all aspects of society. It is particularly interesting to know that the concept of the family as a social unit has survived all these challenges.
(30)
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Section A
Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.
听力原文：M: Did you buy your camera from Marshall's in the city？
W: The shop went out of business last month.
Q: What do we learn about the woman？
(12)
It is hard to track the blue whale, the ocean's largest creature, which has almost been killed off by commercial whaling and is now listed as an endangered species. Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
So biologists were delighted early this year when, with the help of the Navy, they were able to track a particular blue whale for 43 days, monitoring its sounds. This was possible because of the Navy's formerly top-secret system of underwater listening devices spanning the oceans.
Tracking whales is but one example of an exciting new world just opening to civilian scientists after the cold war as the Navy starts to share and partly uncover its global network of underwater listening system built over the decades to track the ships of potential enemies.
Earth scientists announced at a news conference recently that they had used the system for closely monitoring a deep-sea volcanic eruption for the first time and that they plan similar studies.
Other scientists have proposed to use the network for tracking ocean currents and measuring changes in ocean and global temperatures.
The speed of sound in water is roughly one mile a second--slower than through land but faster than through air. What is most important, different layers of ocean water can act as channels for sounds, focusing them in the same way a stethoscope does when it carries faint noise from a patient' s chest to a doctor' s ear. This focusing is the main reason why even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thou- sands of miles.
The passage is chiefly about ______.
A．It takes a longer time to melt.B．It is lighter to carry.C．It is cleaner to use than
听力原文：M: The snow is really coming down, isn't it？
W: Seldom do we get so much snow in January.
Q: What does the woman mean？
(15)
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