问题 探究题

现在市场上出现了一种“不用电池的手电筒”,这种手电筒中有一段固定的螺线管和一块磁铁。使用时只要用力来回摇动手电筒, 磁铁就会穿过螺线管来回快速运动,一段时间后,闭合开关,手电筒中的灯泡就会发光。

(1)这种手电筒产生电能时应用到了________现象,其能量转化是________能转化为________能;

(2)要使摇动后,小灯泡更亮一些,发光时间更长一些,你觉得可行的措施是__________________。(写出一点即可)

答案

(1)电磁感应;机械;电

(2)增加线圈匝数,增加磁铁的磁性等(合理即可)

写作题

阅读下面的短文,然后按照要求写一篇150词左右的英语短文。

A young man was slapped in the face until he bled because he didn’t offer his seat to a woman with a baby on a bus in downtown Hangzhou. Later he was proved to be a disabled person.

In a series of cases nationwide, we see people being beaten for refusing to give up their seats on public transport, which seems to be a moral problem about correct behavior and self-sacrifice.

People with moral deficiency (who don’t give up their seats to deserving people) can be condemned, but they don’t deserve to be treated with violence because they offend moral values and not laws. In comparison, the attackers behave worse.

The attackers regard relying on violence as their only choice if people ignore their appeals to give up their seats. It seems they start a shout or a fight for the sake of justice, but can they still think of their personal intention when they call violence justice?

This “violent justice” can confuse many people and encourage them to do the same, especially when we are overpowered by illogical mood.

If cruel and rude acts are rooted in children’s hearts, society will never step into civilization. The practice violates common values, neither solving problems nor safeguarding civilized society.

【写作内容】

1、以约30个词概括短文的要点。

2、以约120个词谈谈你对这一事件的看法,内容包括:

1)读完这则新闻,你有什么感受?

2)假如你是车上的一名乘客,你会怎样做?

3)就如何创建和谐社会提出你的建议。

【写作要求】

你可以使用实例或其它论述方法支持你的论点,也可以参照阅读材料的内容,但不要抄袭阅读材料中的句子。

【评分标准】

概括准确,语言规范,内容合适,篇章连贯。

判断题