问题
问答题 论述题
赛前有哪几种心理状态？哪种最好？为什么？
答案
参考答案：
赛前心理状态有四种：赛前过分激动状态、赛前淡漠状态、赛前盲目自信状态、战斗准备状态。战斗准备状态最好。战斗准备状态也叫最佳竞技状态。因为这种状态的心理特征是精神与身体非常协调；思想高度集中，无抑制感；无焦虑感，动作轻松、自然，有创造感和表现欲。
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赛前有哪几种心理状态？哪种最好？为什么？
参考答案：
赛前心理状态有四种：赛前过分激动状态、赛前淡漠状态、赛前盲目自信状态、战斗准备状态。战斗准备状态最好。战斗准备状态也叫最佳竞技状态。因为这种状态的心理特征是精神与身体非常协调；思想高度集中，无抑制感；无焦虑感，动作轻松、自然，有创造感和表现欲。
| It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too. The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte—literally, "fish killer." It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding. Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them. Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation. To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack. |
The passage is primarily concerned with ______ .
A．informing readers of different sea creatures
B．describing predatory microscopic organisms
C．solving some long-lasting mysteries about the sea
D．discussing the environment for various fishes