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【B14】______
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The examples of the pregnant woman and Liz are used to show that some people ______.
A presentation has two important components: what you say and 【B1】______ you deliver it. The term delivery covers a wide 【B2】______ of features of speaking and eye contact is one of them.
The appropriate use of eye contact 【B3】______ from one culture to another. In some cultures, women are 【B4】______ to lower their eyes in most communication 【B5】______ ; in others, younger people must keep their eyes lowered when addressing older people. 【B6】______ , in the United States, 【B7】______ you are addressing an individual, a small group of people, or a larger audience, you are expected to look at them. You do not have to stare 【B8】______ and continuously; 【B9】______ , it is appropriate when speaking to one person to 【B10】______ occasionally. In a small group you should look around at the different members of the group. 【B11】______ when addressing a larger audience, you should try to make eye contact with different people around the room. It is important to look at the 【B12】______ Audience, not just the people in the center of the room, 【B13】______ you will probably have to turn your head and/or your body in order to make proper eye contact with people 【B14】______ at the sides of the room. If you look at the floor or the ceiling, you will give the impression that you are not interested in your audience. A speaker establishes friendly relationship with the audience mainly 【B15】______ eye contact, and good relationship is essential to the success of any speech.
【B1】______
Within a large concrete room, cut out of a mountain on a freezing-cold island just 1,000 kilometers from the North Pole, could lie the future of humanity.
The room is a vault (地下库) designed to hold around 2 million seeds, representing all known varieties of the world's crops. It is being built to safeguard the world's food supply against nuclear war, climate change, terrorism, rising sea levels, earthquakes and the collapse of electricity supplies. "If the worst came to the worst, this would allow the world to reconstruct agriculture on this planet," says Cary Fowler, director of the Global Crop Diversity Trust, an independent international organization promoting the project.
The Norwegian (挪威的) government is planning to create the seed bank next year at the request of crop scientists. The $3 million vault will be built deep inside a sandstone mountain on the Norwegian Arctic island of Spitsbergen. The vault will have metre-thick walls of reinforced concrete and will be protected behind two airlocks and high-security doors.
The vault's seed collection will represent the products of some 10, 000 years of plant breeding by the world's farmers. Though most are no longer widely planted, the varieties contain vital genetic properties still regularly used in plant breeding.
To survive, the seeds need freezing temperatures. Operators plan to replace the air inside the vault each winter, when temperatures in Spitsbergen are around -18℃. But even if some disaster meant that the vault was abandoned, the permanently frozen soil would keep the seeds alive. And even accelerated global warming would take many decades to penetrate the mountain vault.
"This will be the world's most secure gene bank," says Fowler. "But. its seeds will only be used when all other samples have gone for some reason."
The project comes at a time when there is growing concern about the safety of existing seed banks around the world. Many have been criticized for their poor security, ageing refrigeration (冷藏) systems and vulnerable electricity supplies.
The scheme won UN approval at a meeting of the Food and Agriculture Organization in Rome in October 2005. A feasibility study said the facility "would essentially be built to last forever".
The Norwegian vault is important in that ______.
For the seed band project to be successful, the most important factor is probably ______.
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