Question

阅读理解 　　For many creatures, the danger of global warming is more than too much heat．You can get temperature-related effects that may not be what you expect．Slight environmental change can affect physiological(生理的)needs and weaken the ability of animals to keep a large enough population for them to live on even when the temperature rise is too mild to kill any creatures． 　　Biologists usually don't know enough about an animal to assess this risk．Their knowledge comes largely from laboratory research on bits and pieces of a creature's physiology．This method doesn't tell how an animal as a living whole responds to climate change in where it lives． 　　Now, 10 years of research that joined laboratory study with field work has explained the decrease in the populations of eelpout, a kind of fish in the southern part of the North Sea．Dr．Portner and Knust have shown that a mild rise in water temperature can reduce the water's ability to hold oxygen, and, at the same time, it increases the fish's need for more oxygen to keep active, otherwise they will be killed or have to move away． 　　The researchers discovered that, over the past five decades, eelpout populations decreased when summer temperatures rose．They also found that warmer summers reduced eelpout populaion the following year． 　　Danish scientists noted that “it remains difficult to determine that increased temperature is the cause for the eelpout population decrease．”Yet they accepted the connection between temperature and population size as recorded in the field with the effect of temperature on the fish's oxygen needs as recorded in the laboratory．They found this connection between laboratory and field data to be “persuasive”． (1) It is implied in Paragraph 2 that biologists' research in labs is ________． [　　] A． useless B． unscientific C． incomplete D． unimportant (2) When it is hot enough, eelpouts will either die or ________． [　　] A． try to take less oxygen B． swim to cooler places C． eat less and rest more D． go down to sea bottom (3) We learn from the passage that ________． [　　] A． once the temperature rises, eelpouts will be killed by heat B． the temperature rise is only an indirect killer of eelpouts C． only a high enough temperature rise is dangerous to eelpouts D． the temperature rise kills only those weak and old eelpouts (4) Which of the following is the possible title of the passage? [　　] A． More heat＝Less oxygen B． More heat≠Less oxygen C． More heat＞Less oxygen D． More heat＜Less oxygen

Answer 1

答案：1．C;2．B;3．B;4．A;
解析：

(1)	推理判断题。根据第2段Their knowledge comes largely from laboratory research…This method doesn't tell how an animal as a living whole responds to climate change in where it lives说明生物学家的理论并不全面。
(2)	细节题。根据第3段…otherwise they will be killed or have to move away说明当气温升高以后鳗鱼要么死掉要么迁走。
(3)	推理判断题。根据最后一段“it remains difficult to determine that increased temperature is the cause for eelpout population decrease．”说明还很难判定气温升高就是导致鳗鱼数量减少的最直接的原因。
(4)	解析：主旨大意题。本文主要探讨了气温升高导致氧气不足，致使许多动物死亡或迁走，因此可用More heat＝Less oxygen来作文章标题。 　　文章大意：温室效应导致许多动物死亡或者迁移，但气温升高也并不是有些动物死亡的最直接的原因，文章对此作了简单的介绍。