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高中物理网课老师的谁教的好

发布时间:2021-05-24 来源:中学网校 发布人:tusya

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条理清晰,逻辑性强,方法独特,幽默风趣。

简单学习网高中学习资料

1.公元前468-前376,我国的墨翟及其*在《墨经》中记载了光的直线传播、影的形成、光的反射、平面镜和球面镜成像等现象,为世界上最早的光学著作。

2.1849年法国物理学家斐索首先在地面上测出了光速,以后又有许多科学家采用了更精密的方法测定光速,如美国物理学家迈克尔逊的旋转棱镜法。(注意其测量方法)

3.1621年荷兰数学家斯涅耳找到了入射角与折射角之间的规律——折射定律。

4.关于光的本质:17世纪明确地形成了两种学说:一种是牛顿主张的微粒说,认为光是光源发出的一种物质微粒;另一种是荷兰物理学家惠更斯提出的波动说,认为光是在空间传播的某种波。这两种学说都不能解释当时观察到的全部光现象。

1801年,英国物理学家托马斯•杨成功地观察到了光的干涉现象

1818年,法国科学家菲涅尔和泊松计算并实验观察到光的圆板衍射——泊松亮斑。

1864年英国物理学家麦克斯韦预言了电磁波的存在,指出光是一种电磁波,1887年由赫兹证实。

1895年,德国物理学家伦琴发现X射线(伦琴射线),并为他夫人的手拍下世界上第一张X射线的人体照片。

1900年,德国物理学家普朗克为解释物体热辐射规律提出电磁波的发射和吸收不是连续的,而是一份一份的,把物理学带进了量子世界;受其启发1905年爱因斯坦提出光子说,成功地解释了光电效应规律。(量子力学的说明在第三册P56)

1922年,美国物理学家康普顿在研究石墨中的电子对X射线的散射时——康普顿效应,证实了光的粒子性。(说明动量守恒定律和能量守恒定律同时适用于微观粒子)

光具有波粒二象性,光是电磁波、概率波、横波(光的偏振说明光是一种横波)。

光的电磁说中要注意电磁波谱(第三册P31),还要注意原子光谱(涉及光谱分析第三册P50)

5.1913年,丹麦物理学家玻尔提出了自己的原子结构假说,成功地解释和预言了氢原子的辐射电磁波谱,为量子力学的发展奠定了基础。(明确其局限性)

6.1924年,法国物理学家德布罗意大胆预言了实物粒子在一定条件下会表现出波动性;1927年美英两国物理学家得到了电子束在金属晶体上的衍射图案。电子显微镜与光学显微镜相比,衍射现象影响小很多,大大地提高了分辨能力,质子显微镜的分辨本能更高。(第三册P54)

【五、原子物理学】


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高中英语学习方法:英语写作高分必备模板

英语书信的常见写作模板

开头部分:

How nice to hear from you again. Let me tell you something about the activity. I'm glad to have received your letter of Apr. 9th. I'm pleased to hear that you're coming to China for a visit. I'm writing to thank you for your help during my stay in America.

结尾部分:

With best wishes. I'm looking forward to your reply. I'd appreciate it if you could reply earlier.

口头通知常见写作模板

开场白部分:

Ladies and gentlemen, May I have your attention, please? I have an announcement to make.

正文部分:

All the teachers and students are required to attend it. Please take your notebooks and make notes. Please listen carefully and we'll have a discussion in groups. Please come on time and don't be late.

结束语部分:

Please come and join in it. Everybody is welcome to attend it. I hope you'll have a nice time here. That's all. Thank you.

议论文模板

1.正反观点式议论文模板:

导 入: 第1段:Recently we've had a discussion about whether we should…… (导入话题) Our opinions are divided on this topic.(观点有分歧) 正文: 第2段:Most of the students are in favour of it.(正方观点) Here are the reasons. First…… Second…… Finally……(列出2~3个赞成的理由) 第3段:However, the others are strongly against it. (反方观点) Their reasons are as follows. In the first place…… What's more…… In addition……(列出2~3个反对的理由) 结论: 第4段:Personally speaking, the advantages overweigh the disadvantages, for it will do us more harm than good, so I support it.(个人观点)

2."A或者B"类议论文模板:

导 入: 第1段:Some people hold the opinion that A is superior to B in many ways. Others, however, argue that B is much better. Personally, I would prefer A because I think A has more advantages. 正文: 第2段:There are many reasons why I prefer A. The main reason is that …… Another reason is that……(赞同A的原因) 第3段: Of course, B also has advantages to some extent…… (列出1~2个B的优势) 结论: 第4段: But if all these factors are considered, A is much better than B. From what has been discussed above, we may finally draw the conclusion that ……(得出结论)

3.观点论述类议论文模板:

导 入: 第1段:提出一种现象或某个决定作为议论的话题 As a student, I am strongly in favour of the decision. (亮明自己的观点是赞成还是反对) The reasons for this may be listed as follows. (过渡句,承上启下) 正文: 第2段:First of all…… Secondly…… Besides……(列出2~3个赞成或反对的理由) 结论: 第3段:In conclusion, I believe that…… (照应第1段,构成"总—分—总"结构)

4."How to"类议论文模板:

导 入: 第1段:提出一种现象或某种困难作为议论的话题 正文: 第2段: Many ways can help to solve this serious problem, but the following may be most effective. First of all…… Another way to solve the problem is …… Finally……(列出2~3个解决此类问题的办法) 结论: 第3段:These are not the best but the only two/ three measures we can take. But it should be noted that we should take action to……(强调解决此类问题的根本方法)

图表作文写作模板

The chart gives us an overall picture of the 图表主题。

The first thing we notice is that 图表最大特点 .

This means that as 进一步说明。

We can see from the statistics given that 图表细节

图表细节一 . After 动词-ing :细节一中的第一个变化, the动词-ed+幅度+时间(紧跟着的变化) .

The figures also tell us that图表细节二 .

In the column, we can see that accounts for (进一步描述).

Judging from these figures, we can draw the conclusion that (结论).

The reason for this, as far as I am concerned is that (给出原因). b或是 It is high time that we (发出倡议).

图画类写作模板

1.开头

Look at this picture./The picture shows that……/From this picture, we can see……/As is shown in the picture……/As is seen in the picture……

2. 衔接句 As we all know, ……/As is known to all,……/It is well known that……/In my opinion,……/As far as I am concerned,……/This sight reminds me of something in my daily life.

3.结尾句 In conclusion……/In brief……/On the whole……/In short……/In a word……/Generally speaking……/As has been stated.

今天就和大家就分享到这,祝愿同学们用辛勤的汗水去收获美好的未来吧!


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