高中英语口语情景对话新娱乐方式素材

高中英语口语情景对话新娱乐方式素材
高中英语口语情景对话新娱乐方式素材

原版英语口语情景对话第0079集:初恋的故事

Tara白天的时候没事情做,也不爱看书,想来想去买了个新吉他,可是新手怎么学是个问题。

Todd: So Tara, I see you've just bought a new guitar.

Tara: Yeah, I have, yeah.

Todd: Yeah!

Tara: It's very nice.

Todd: So, what's the reasoning behind buying a guitar?

Tara: Well, I work at nights so I have the daytime free, and to be honest, most people they work in the day so I'm often on my own, and I just want something to keep me entertained in the daytime, and I don't really like reading books, so I want something

to do with my hands, so I thought buying a guitar is a good idea.

Todd: Do you have any kind of music you would like to sing or learn to play?

Tara: I'd like to learn, have you heard, there's some English bands, like Cold Play and Turn Break so I'd like to learn that kind of style.

Todd: OK. Do you plan to take lessons or just learn on your own?

111

Tara: No, well a couple of my friends, they you know, they can... they learned guitar as well. I can't really take lessons in Japan. I think that might be a bit too much, but my friends are going to teach me. Hopefully. Yeah!

222

商务英语口语情景对话大全

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?光的波动性

1.光的干涉 (1)产生干涉的条件:两列光的 相同, 恒定. (2)杨氏双缝干涉①原理如图所示.②产生明、暗条纹的条件 a .单色光:若路程差r 2-r 1=kλ(k =0,1,2…),光屏上出现 ; 若路程差r 2-r 1= (2k +1) 2 λ (k =0,1,2…),光屏上出现 . b .白光:光屏上出现彩色条纹.③相邻明(暗)条纹间距:Δx = λd l . (3)薄膜干涉 ①概念:由薄膜的前后表面反射的两列光相互叠加而成.劈形薄膜干涉可产生平行 条 纹. ②应用:检查工件表面的平整度,还可以做增透膜. 2.光的衍射 (1)光的衍射现象:光在遇到障碍物时,偏离直线传播方向而照射到 区域的现象. (2)发生明显衍射现象的条件:当孔或障碍物的尺寸比光波波长小,或者跟波长差不多时,光才能发 生明显的衍射现象. (3)各种衍射图样 ①单缝衍射:中央为 ,两侧有明暗相间的条纹,但间距和 不同.用白 光做衍射实验时,中央条纹仍为 ,最靠近中央的是紫光,最远离中央的是红光. ②圆孔衍射:明暗相间的不等距 . ③泊松亮斑(圆盘衍射):光照射到一个半径很小的圆盘后,在圆盘的阴影中心出现的亮斑,这是光 能发生衍射的有力证据之一. (4)衍射与干涉的比较

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