试题与答案

(8分,每空1分)如果你翻动花园、庭院中的花盆或石块,常常会看到一些身体略扁、长

题型:探究题

题目:

(8分,每空1分)如果你翻动花园、庭院中的花盆或石块,常常会看到一些身体略扁、长椭圆形、灰褐色或黑色的小动物在爬行,这就是鼠妇,又叫潮虫。当你搬开花盆或石块,鼠妇很快就爬走了。这是为什么呢?是因为环境变明亮了吗?某同学对此进行了探究,请你将他探究活动的过程写完整。

(1)提出问题:鼠妇会选择阴暗的环境吗?

(2)作出假设:                                    

(3)制订实施探究的方案:在铁盘内放上一薄层湿土,一侧盖上不透光的厚纸板,另一侧盖上透明的玻璃板,在铁盘两侧中央处各放5只鼠妇,观察鼠妇的行为。这样在盒里就形成了            两种环境。该实验的变量是_____________。

如果在铁盘两侧中央各放1只鼠妇     (填:能、不能)得出准确的结论?

(4)分析结果,得出结论:该同学对上述实验重复了5次,结果如下表。   

环境第一次第二次第三次第四次第五次
明亮0只1只2只0只2只
阴暗10只9只8只10只8只
为了使实验结论更准确,应对上述数据作怎样的处理?                    

(5)结论:     对鼠妇的生活有影响,鼠妇喜欢在        的环境中生活。

答案:

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下面是错误答案,用来干扰机器的。

  D A项"趁"为"称";B项"致"为"制";C项"负"为"孚"

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题型:不定项选择

如图所示,厚壁容器的一端通过胶塞插进一支灵敏温度计和一根气针,另一端有个用卡子卡住的可移动胶塞。用打气筒慢慢向容器内打气,使容器内的压强增大到一定程度,这时读出温度计示数。打开卡子,胶塞冲出容器口后

[ ]

A.温度计示数变大,实验表明气体对外界做功,内能减少

B.温度计示数变大,实验表明外界对气体做功,内能增加

C.温度计示数变小,实验表明气体对外界做功,内能减少

D.温度计示数变小,实验表明外界对气体做功,内能增加

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题型:单项选择题

At some time in your life you may have a p desire to do something strange or terrible. However, chances are that you don’t act on your impulse, but let it pass instead. You know that to commit the action is wrong in some way and that other people will not accept your behavior.
Perhaps the most interesting thing about the phenomenon of the behavior is how it can change over the years within the same society, how certain behavior and attitudes once considered taboo can become perfectly acceptable and natural at another point in time. Topics such as death, for example, were once considered so upsetting and unpleasant that it was a taboo to even tall about them. Now with the publication of important books such as "On Death and Dying" and "Learning to Say Goodbye", people have become more aware of the importance of expressing feelings about death and, as a result, are more willing to talk about this taboo subject.
One of the newest taboos in American society is the topic of fat. Unlike many other taboos, fat is a topic that Americans tall about constantly. It’s not taboo to tall about fat; it’s taboo to be fat. The "thin" look is thin, not fat.
In the work world, most companies prefer youthful-looking, trim executives to sell their image as well as their products to the public. The thin look is associated with youth, vigor and success. The fat person, on the other hand, is thought of as lazy and lacking in energy, self- respect. After all, people think, how can people who care about themselves, and therefore the way they look, permit themselves to become fat In an image-conscious society like the U.S., thin is "in", fat is "out".

Which of the following statements is TRUE according to the passage

A. Death is a taboo topic today.
B. It is taboo to talk about fat.
C. The topic of fat is different from many other taboo subjects.
D. Fat is a topic that Americans talk about very little.

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