如图所示，一验电器与锌板相连，在A处用一紫外线灯照射锌板，关灯后，指针保持一定偏角．
微风吊扇通电后扇叶转动，此过程中____ 能转化为____ 能．拔下插头，在插头处接发光二极管，用手旋转叶片，发光二极管发光，这是____ 现象，人们利用这一原理制成了____（发电/电动）机．
(T＝Teacher S＝Student)
T: Hello!
S: ____
T: I am your new teacher.____
S: My name is Tom.
T: ____
S: Very well, thank you.
T: Nice to meet you.
A. How are you?
B. Hi!
C. What's your name?
D. Nice to meet you, too.
