问题 选择题

2009年诺贝尔物理学奖由三位物理学家分享。其中,英国华裔科学家高锟在光纤通信方面取得了突破性成就,美国科学家博伊尔和史密斯则发明了半导体成像器件——电荷耦合器件(CCD)图像传感器。光在科学技术、生产和生活中有着广泛的应用,下列说法正确的是

A.用透明的标准平面样板检查光学平面的平整程度是利用光的干涉现象

B.用三棱镜观察白光看到彩色光带是因为光发生了色散现象

C.在光导纤维束内传送图像是利用光的衍射现象

D.光学镜头上的增透膜是利用光的偏振现象

答案

AB

用透明的标准平面样板检查光学平面的平整程度是利用光的干涉现象,用三棱镜观察白光看到彩色光带是因为光发生了色散现象,选项AB正确;在光导纤维束内传送图像是利用光的全反射现象,光学镜头上的增透膜是利用光的干涉现象,选项CD错误

单项选择题
完形填空

One afternoon, my son Adam asked me, “Are all people the same even if they are different in color?”

I thought for a minute, and then I said, “I’ll explain, 21 you can just wait until we make a quick 22 at the grocery store. I have something 23 to show you. ”

At grocery store, we 24 some apples --- red, green and yellow ones. Back home, I told Adam, “It’s time to 25 your question.” I put one apple of each 26 on the table. Then I looked at Adam, who had a 27 look on his face. 

“People are like apples. They come in all 28 colors, shapes and sizes. On the 29,  some of the apples may not 30 look as the others. ” As I was talking, Adam was 31 each one carefully. 

Then, I took each of the apples and peeled(削皮)them, 32 them back on the table, but 33 a different place. 

“Okay, Adam, tell me which is which.”

He said, “I 34 tell. They all look same now. ” “Take a bite of 35. See if that helps you 36 which one is which. ”

He took 37, and then a huge smile came across his face. . ”People are 38 like apples! They are all different, but once you 39 the outside, they’re pretty much the same on the inside. ”

He totally 40 it. I didn’t need to say or do anything else. 

小题1:.

A.although

B.so

C.because

D.if小题2:.

A.stop

B.star

C.turn

D.stay小题3:.

A.expressive

B.encouraging

C.informative

D.interesting小题4:.

A.bought

B.counted

C.saw

D.collected小题5:. A. check      B. mention      C. answer         D. improve

小题6:.

A.size

B.type

C.shape

D.class小题7:.

A.worried

B.satisfy

C.proud

D.curious小题8:.

A.ordinary

B.normal

C.different

D.regular小题9:.

A.outside

B.whole

C.table

D.inside小题10:.

A.still

B.even

C.only

D.ever小题11:.

A.examining

B.measuring

C.drawing

D.packing小题12:.

A.keeping

B.placing

C.pulling

D.giving小题13:.

A.on

B.toward

C.for

D.in小题14:.

A.mustn’t

B.can’t

C.shouldn’t

D.needn’t小题15:.

A.each one

B.each other

C.the other

D.one another小题16:.

A.admit

B.consider

C.decide

D.believe小题17:.

A.big bites

B.deep breaths

C.a firm hold

D.close look小题18:.

A.just

B.always

C.merely

D.seldom小题19:.

A.put away

B.get down

C.hand out

D.take off小题20:.

A.made

B.took

C.got

D.did