问题 单项选择题

××年××月××日凌晨2时零5分,某商厦一楼某银行储蓄所发生火灾,殃及某商厦,造成1人当场死亡,直接经济损失3638万元。火灾发生后,市委、市政府领导迅速赶到火灾现场指挥灭火救灾工作。
经事故调查组调查,火灾的直接原因是某商厦一楼某银行储蓄所3号柜员处在木地板上放置的电热器长时间通电,以致引燃地板及附近可燃物,向上蔓延,又引燃天棚,从而酿成这起特大火灾。另外还发现如下问题:
(1)该商厦照明线老化,敷设不符合要求,刀闸保险使用铜丝代替保险丝;
(2)该商厦一至三层是商场,四层是仓库、办公室和职工宿舍,办公室和职工宿舍均使用易燃材料进行装修;
(3)消防器材数量不够,部分灭火器检修时间过期。
根据以上情形回答下列问题(1~2题为单选题,只有一个正确的答案。3~6题为多选题,有两个或两个以上的正确答案。)

按照《火灾统计管理规定》(公安部、劳动部,1997年)规定,这起事故按严重程度应定为( )事故。

A.特大火灾

B.重大火灾

C.一般火灾

D.工业火灾

E.民用火灾

答案

参考答案:A

阅读理解

The Batsquatch is described as a great winged bat. It’s reported that it lives in the shadows(阴暗处) of Mt. Saint Helens. It has purple skin, red eyes and the character is quite similar to the bat’s. Since reports tell it likes eating small animals like chickens, goats and pigs, some believe that it is actually a flying primate(灵长目动物). But researchers say that it is more closely related to the fruit bat of northern America.

Fear still fills the hearts of men, women and children of Washington. In May of 1980 during the eruption of Mount Saint Helens, the Batsquatch showed itself in the shadows of clouds from the eruption. In 1994, a local mountaineer was able to take pictures of the Batspuatch making the rumor(谣言) seem real. During this event some farm animals seemed to disappear though luckily no humans were reported missing at the time. The local mountaineer told about his meeting with the Batsquatch. When he suddenly heard a loud deep voice from the shadows, the mountaineer was knocked down. He tried to look for the creature(生物) that had made the sound. He saw a great creature with purple wings in the sky. It looked like it was about 30 feet tall.

The mountaineer kept this story a secret in fear of being laughed at by others but when new stories came in about the Batsquatch he shared his story.

The reality of the Batsquatch can no longer be ignored. It is only a creature that is trying to live. Respect! This is how we should take news such as this. Respect for a living creature instead of fear.

小题1:The rumor about the batsquatch makes people of Washington full of______

A.joy

B.surprise

C.fear

D.anger小题2: Why did people believe the rumor of the Batsquatch was real?

A.Because it was reported in the newspaper

B.Because it was seen by many local people

C.Because someone once caught one

D.Because someone took its picture小题3:When the Batsquatch appeared, the mountaineer_______.

A.heard nothing strange

B.shouted at it to frighten it away

C.was lying on the ground, relaxing

D.found it was a 30-foot-tall creature that could fly小题4: The mountaineer didn’t tell others his story because he________.

A.was afraid of being laughed at

B.was too frightened to tell others

C.couldn’t believe what he saw

D.didn’t want to make fun of others小题5: The purpose of the last paragraph is to tell readers_______.

A.the Batsquatch is being endangered

B.the Batsquatch is a dangerous creature

C.respect should be given to the Batsquatch

D.the news about the Batsquatch is real

探究题

                                                                  课题:各种各样的镜子

I.小组首先回顾了几个重要的探究:

(1)探究平面镜成像时,由于平面镜成____________像,无法用光屏承接。为了找到像的位置,小马用透明玻璃代替平面镜,将一支点燃的蜡烛放在玻璃前,将另一支未点燃的同样蜡烛放在玻璃后面,使它与点燃蜡烛的像的位置____________。这在物理学中称作等效法。

II.小马发现金属图钉的光亮表面可以看成是一种称作凸面镜的光学镜子,于是他对凸面镜探究如下:

(2)他用多支激光手电筒正对着一只凸面镜照射时,情况如下图所示,可见凸面镜对光线有____________(填“会聚”或“发散”)作用。

(3)小马设计如下方案研究凸面镜成的像:

①器材;透明弧形(球冠形)玻璃、光屏、长短不同的多支蜡烛、光具座.

②步骤:在光具座上,在透明弧形玻璃前某位置放一支点燃的蜡烛,先用光屏进行像的承接;然后再选择另一支与这个像长短_____________的蜡烛,放在玻璃后面,与像的位置_________________。改变蜡烛的位置做多次实验

③实验记录如下:

(4)小马得出结论:凸面镜只能成__________、___________的_______像。

(5)日常生活中能看到的凸面镜有:金属图钉面、_________________。凸面镜的主要优点是:相同面积的凸面镜比平面镜观察到的范围_________