问题 写作题

Ⅴ. 第二节书面表达:(满分30分)

一个周六的下午,“绿眼睛”环保组织成员李华和王平在河边开展环保行动时

发现了一只小鸟受伤了,在地上无法飞行, 于是他们展开了抢救行动。你就此事写一篇新闻报道。要点如下:

1. 时间、地点、情景;

2. 描述处理方式, 包括救助, 治疗, …… 

3. 简要谈谈你的感想。

注意:词数100-120;已给部分不计词数; 参考词汇:“绿眼睛”环保组织: Green Eyes

Saving The Wounded Bird

One Saturday afternoon, Li Hua and Wang Ping, members from “Green Eyes”,_______________

______________________________________________________________________________

答案

Possible version:

Saving The Wounded Bird

One Saturday afternoon, Li Hua and Wang Ping, members from “Green Eyes”, were having an environmental protection activity near the riverside when they caught sight of a bird on the ground. They picked it up and found it wounded.

Thinking it might die without timely help, they took it home. They made a nest for it and fed it with rice and water. Under their treatment and care, the lucky bird got recovered soon. When time came for them to fly the bird back to nature, they felt a bit pity but very delighted.

I think it’s worthwhile for them to do such a thing. Here I call on the public to show respect to nature. Only by changing the way we treat the environment can we get along well with it. (120)

单项选择题
实验题

(1)利用图示装置进行验证机械能守恒定律的实验时,需要测量物体由静止开始自由下落到某点时的瞬时速度v和下落高度。某同学利用实验得到的纸带,设计了一种测量方案,方案中有以下两步:

a.根据算出物体下落的高度h

b.根据计算出物体下落的瞬时速度v

请你评价一下这个同学的测量方案中的这两步是否存在错误,若有错误,请在下面进行改正:

                                                                    .

利用这个装置也可以测量重锤下落的加速度a的数值.如图所示,根据打出的纸带,选取纸带上打出的连续五个点A、B、C、D、E,测出A点距起始点O的距离为x0,点A、C间的距离为x1,点C、E间的距离为x2,使用交流电的频率为f,则根据这些条件计算重锤下落的加速度a的表达式:a=              

(2)两位同学在实验室中利用如图⑴所示的电路测定定值电阻R0、电源的电动势E和内电阻r,图中abc分别代表三只电表,它们当中有两只电压表和一只电流表,调节滑动变阻器的滑动触头P向某一方向移动时,甲同学记录的是电流表A和一只电压表V1的测量数据,乙同学记录的是电流表A和另一只电压表V2的测量数据.并根据数据描绘了如图⑵所示的两条U-I图线.回答下列问题:

①图中a代表         ,b代表         ,c代表                     (填上三只电表的符号,如“A”、“V1”或“V2”)

②根据图象推断实验中所用滑动变阻器可能是下面的哪种规格的?

A.10Ω,0.5A        B.20Ω,1A                

C.1kΩ,200mA      D.2 kΩ,2A

③根据图(b),可以求出定值电阻R0  Ω,电源电动势E= V,内电阻r= Ω.