问题 单项选择题

有的人即便长时间处于高强度的压力下,也不会感到疲劳,而有的人哪怕干一点活也会觉得累。这除了体质或者习惯不同之外,还可能与基因不同有关。英国格拉斯哥大学的研究小组通过对50名慢性疲劳综合症患者基因组的观察,发现这些患者的某些基因与同年龄、同性别健康人的基因是有差别的。 以下哪项如果为真,最能支持该研究成果应用于慢性疲劳综合症的诊断和治疗( )

A.基因鉴别已在一些疾病的诊断中得到应用

B.目前尚无诊断和治疗慢性疲劳综合症的方法

C.在慢性疲劳综合症患者身上有一种独特的基因

D.科学家们鉴别出了导致慢性疲劳综合症的基因

答案

参考答案:C

解析: 本题属于论证推理,A项说法过于宽泛,支持基因鉴别疗法,但现在是要支持“该成果”在“慢性疲劳综合症”的“诊断和治疗”。B项并没有加强题干的论点。D项的内容将“基因”与“诊断和治疗”建立的关联若为真的话,基因都明确了,题干中的研究成果就无用了。C项在词项之间建立起逻辑关系,注意既然是研究成果,在很多不确定因素下进行临床应用才是正常的。故选C。

阅读理解

阅读理解: 先阅读下列短文,掌握其大意,然后在A B C D四个答案中选出最佳答案。

       Leopards (豹) live in many parts of the world, from Siberia to Africa. They have a very beautiful yellow

skin with large black spots. They live for about 15 years and eat small mammals (哺乳动物) such as zebras,

monkeys, and antelopes (羚羊). They sleep for about 12 hours a day. Leopards are very solitary (独居的)

animals. They spend most of their time alone in trees, where they wait until a small animal passes. They jump on

the animal and then drag it up into the tree, where they eat it.

       Like many animals, leopards are disappearing because people hunt them. They kill them for their beautiful

coats. The Sinai leopard, for example, from Egypt, is now probably extinct (绝种的).

1. How old is a leopard? [ ]

A. Fifty weeks

B. Fifteen months

C. Twelve days

D. Fifteen years

2. Leopards live             . [ ]

A. live in family groups

B. live alone

C. live together

D. live with other animals

3. Leopards spend much time in tree because they want to             .[ ]

A. sleep

B. jump

C. wait and catch small mammals

D. rest

4. Which is not true? [ ]

A. Leopards have beautiful fur

B. Leopards eat animals and plants

C . Leopards sleep 12 hours a day

D. The Sinai leopard probably extinct

5. Why do people hunt leopards?   Because              .[ ]

A. they kill them for their meat

B. they attack people all the time

C. they are dangerous

D. they kill them for their coats

判断题