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    Going to college means a lot of changes in their lifestyle for most students. Living in a dormitory remains a major challenge as it means learning how to share space with others who are total strangers.

    While some can live together peacefully, others may face conflicts (矛盾) that need to be worked out. According to a recent survey of students in 12 different universities in Wuhan, only 40 percent of them are satisfied with their dormitory friendships and 35 percent said they kept away from conflicts in the dorm.

    For those living in a dorm for the first time, sharing things, such as a computer or paper towels, can be a source of conflict. Another common conflict is related to different habits. What they are going to do, such as going to bed, watching movies or studying, will also cause a conflict. Sometimes roommates may also have problems when welcoming guests, especially those of the opposite sex.

    However, there are more effective methods to solve problems than screaming at each other. The best way is to talk about an issue before it even becomes a problem. You should treat roommates honestly and directly, and try to work out a solution. And you can also set up rules that everyone can obey. These rules can be written down in an agreement and be put up in a visible (看得见的) place. Students can also outline which items to share and which are for personal use. They can regulate cleaning duties, agree on a time to sleep, and decide on how to receive guests.

    In any discussion it is important to talk with your roommates in a positive way. For example, you can mention your roommates good personality. This can help them understand you better and make them more willing to compromise (妥协).

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同类题1

人的耳垢有油性和干性两种,是受单基因(A、a)控制的.有人对某一社区的家庭进行了调查,结果如表:

表(单位:个)

组合序号

双亲性状

家庭数目

油耳男孩

油耳女孩

干耳男孩

干耳女孩

油耳×油耳

195

90

80

10

15

油耳×干耳

80

25

30

15

10

干耳×油耳

60

26

24

6

4

干耳×干耳

335

0

0

160

175

合计

670

141

134

191

204

(1)控制该相对性状的基因位于____ 染色体上

(2)一对油耳夫妇生了一个干耳儿子,推测母亲的基因型是____ ;若一对干耳夫妇生了一个左耳是干性的、右耳是油性的男孩,出现这种情况的原因可能是____ .

(3)从组合一的数据看,子代性状没有呈典型的孟德尔分离比(3:1),其原因是____ 

在寻找人类的缺陷基因时,常常需要得到有患病史的某些近亲结婚家系的系谱进行功能基因定位.科学家在一个海岛的居民中,找到了引起蓝色盲的基因.该岛正常居民中约有44%的居民为蓝色盲基因的携带者.在世界范围内,则是每10000人中有4名蓝色盲患者.如图为该岛某家族系谱图,请分析回答下列问题:

(4)该缺陷基因是____性基因.

(5)若个体Ⅳ﹣14与该岛某表现型正常的男性结婚,预测他们后代患蓝色盲的几率是____ ;若个体Ⅳ﹣14与一个该岛以外的(世界范围内的)表现型正常的男性结婚,则他们生一个患蓝色盲儿子的几率是____ .

(6)现需要从第Ⅳ代个体中取样(血液、皮肤细胞、毛发等)获得该缺陷基因,请选出提供样本的较合适个体,并说明选与不选的原因____