1.选择题- (共8题)
4.(2011年金华十校联考)现在高速公路上的标志牌都用“回归反光膜”制成．夜间行车时，它能把车灯射出的光逆向返回，标志牌上的字特别醒目．这种“回归反光膜”是用球体反射元件制成的，反光膜内均匀分布着一层直径为10 μm的细玻璃珠，所用玻璃的折射率为
，为使入射的车灯光线经玻璃珠折射→反射→再折射后恰好和入射光线平行，如图所示，那么第一次入射的入射角应是( )
，为使入射的车灯光线经玻璃珠折射→反射→再折射后恰好和入射光线平行，如图所示，那么第一次入射的入射角应是( )
8.(2011年广东中山调研)如图所示，红色细光束a射到折射率为
的透明球表面，入射角为45°，在球的内壁经过一次反射后，从球面射出的光线为b，则入射光线a与出射光线b之间的夹角α为( )
的透明球表面，入射角为45°，在球的内壁经过一次反射后，从球面射出的光线为b，则入射光线a与出射光线b之间的夹角α为( )
2.单项选择- (共12题)
9.
---Have you bought any dress while shopping?
---I am sorry to tell you when I tried on all the dresses in the shop and _____ satisfied me.
---I am sorry to tell you when I tried on all the dresses in the shop and _____ satisfied me.
| A．nothing | B．no one | C．none | D．some |
11.
---Please take these letters to ____ post office ， Jack ---With ____ pleasure, Dad.
| A．a; the | B．the; a | C．a;/ | D．the;/ |
12.
Tom sat under a tree chatting with his friends and _____ his teacher, stood up in no time.
| A．seeing | B．seen | C．saw | D．to see |
13.
Our country did a lot about the drunk-driving, and it took some time ____ the situation got better.
| A．after | B．since | C．unless | D．before |
14.
．This January will be very precious for us by which time we _______reviewing Senior Book I.
A. will finish B. will have finished
C. have finished D. will be finished
A. will finish B. will have finished
C. have finished D. will be finished
15.
I have the same opinion as yours _____ we should carry out the experiment at once.
| A．that | B．which | C．whether | D．where |
16.
—Was it last summer you luckily got an opportunity to spend your holiday in Hawaii ?
—Not me . John was the lucky dog .
—Not me . John was the lucky dog .
| A．that | B．when | C．which | D．what |
17.
The view ____ many scientists hold is ____ too much emission of carbon dioxide is destructive.
| A．what; that | B．that; which | C．that; that | D．which; which |
18.
_____ this afternoon, you would have to come again next week.
| A．The boss were not to return | B．The boss didn’t return |
| C．Didn’t the boss return | D．Were the boss not to return |
19.
Nowhere else in our world ________ such a quiet, beautiful place ________ Angkor Wat.
| A．there can be; in | B．is there; that | C．there is; as | D．can there be; as |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(12道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：0
7星难题：0
8星难题：12
9星难题：0