题目内容
A．Materials science.B．Biotechnology.C．Biomedicine.D．Fluid physics.
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In daily life, reading aloud is ______.
听力原文：M: Here you are at last. We'll be late and Mary will be upset.
W: I'm sorry, John. I had to finish my work at hand, and then buy a birthday present for Mary on the way.
Q: What are they going to do？
(17)
Section B
Directions: This section is to test your ability to understand short conversations. There are 2 recorded conversations in it. After each conversation, there are some recorded questions. The conversations and the questions will be spoken only once. When you hear a question, you should choose the correct answer from the 4 choices marked A, B, C, and D.
听力原文：W: What can I do for you, sir？
M: I want to draw $100 from my account.
W: Have you got your bankbook with you？
M: Yes, here it is.
W: That's fine. Thank you. How do you want them？
M: Ten-dollar bills. Please.
W: Anything else？
M: Yes, could you tell me my balance please？
W: Here's your balance.
M: Thanks.
(6)
Space is a dangerous place, not only because of meteors (流星) but also because of rays from the sun and other stars. The atmosphere again acts 【C1】______ our protective blanket on 【C2】______ . Light gets through, and this is essential 【C3】______ plants to make the food which we 【C4】______ . Heat, 【C5】______ , makes our environments tolerable and some ultraviolet rays (紫外线) penetrate the 【C6】______ . Cosmic (宇宙的) rays of various kinds come 【C7】______ the air from outer space, but 【C8】______ quantities of radiation from the sun are screened off. As 【C9】______ as men leave the atmosphere they are 【C10】______ to this radiation; 【C11】______ their spacesuits or the walls of their spacecraft, if they are inside, 【C12】______ prevent a lot of radiation damage.
Radiation is the greatest known danger to explorers in 【C13】______ . Doses of radiation are measured in 【C14】______ called "rems (雷姆)". We all 【C15】______ radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The" 【C16】______ "dose of radiation that we receive each year is about 100 millirems; it 【C17】______ according to where you live, and this is a very rough estimate. Scientists have reason to think 【C18】______ a man can 【C19】______ up with far more radiation
【C20】______ this without being damaged; the figure of (60) rems has been agreed.
【C1】
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