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问题 完形填空
完形填空。
     Traffic rules are made to keep order on the road. They also help to keep people __1__.
     The pedestrian (行人) has as many rules to __2__ as the driver of a car. You should walk at
the sidewalk or at the __3__ of the road. Always look carefully before you walk across the street.
     If you like riding a bike, don't ride in the middle of the road or run __4__ red traffic lights. When
you ride a bike with a friend, don't look around to talk.
     If you drive, you should __5__ at the traffic lights. You must always __6__ a seat belt (安全带).
Without belts __7__ the driver and the passengers may be badly hurt in a sudden accident.
Someone may be thrown out through the window.
     You may not need to drive a bus, but __8__ if you have to travel in one. Get on or get off a bus
only when it has come to a __9__. When it is full, don't try to get inside _10__ you may fall off.
     Traffic rules are also called Road Safety rules. The maxim (格言)for all road users is "Thinking
about others".
( )1. A. healthy    
( )2. A. follow    
( )3. A. edge      
( )4. A. through    
( )5. A. speed up  
( )6. A. take      
( )7. A. half      
( )8. A. look around
( )9. A. sign      
( )10. A. and 		B. safe    
B. make    
B. rim      
B. across  
B. go ahead
B. wear    
B. neither  
B. take care
B. stop    
B. so              		C. happy      
C. break      
C. end        
C. along      
C. get off    
C. carry      
C. both      
C. take a seat
C. corner    
C. or      		D. careful  
D. pass      
D. side      
D. around    
D. slow down
D. bring    
D. all      
D. look back
D. crossing  
D. but      
答案

1-5 BADAD    6-10 BCBBC

计算题

市场上出现过一种一氧化碳检测器，其外观像一张塑料信用卡，正中有一个直径不到2cm的小窗口，露出橙红色固态物质。若发现橙红色转为黑色而在短时间内不复原，表明室内一氧化碳浓度超标，有中毒危险。一氧化碳不超标时，橙红色虽也会变黑却能很快复原。已知检测器的化学成分：亲水性的硅胶、氯化钙、固体酸H8[Si(Mo2O7)6]·28H2O、CuCl2·2H2O和PdCl2·2H2O（注：橙红色为复合色，不必细究）。

4-1   CO与PdCl2·2H2O的反应方程式为：                    。

4-2   4-1的产物之一与CuCl2·2H2O反应而复原，化学方程式为：        。

4-3   4-2的产物之一复原的反应方程式为：                          。
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阅读理解

阅读理解

     We often think of future. We often wonder what the world will be like in a hundred years' time.

      Think of space,  perhaps a permanent (永久的) station on the moon will have been set up. Perhaps

people will be able to visit the moon as tourists. Cheap rockets for space travel will have been developed, permitting long journeys throughout the solar system(太阳系). When that time comes, people will be

taking holidays in space and visiting other planets. Creat progress will have been made in medicine, too.

Perhaps a cure will have been discovered for the most terrible of all diseases-cancer. Pollution is a

problem we must solve. In a hundred years' time it will have been controlled.

     All the world will have been developed-even Antarctica. There will be large cities in Antarctica. We

already have supersonic (超音速的)  flight,  but in a hundred years' time we will have supersonic land

travel as well.

     We will have used up most of the earth's land tobuild our cities, so floating cities will have been built.

The Japanese already have plans for cities of this kind.And there will be cities under the sea. The first of

these will have been completed.       .

1. We will have developed _    in a hundred years' time, permitting long journeys all over the solar

    system.   

A. cheap rockets for space travel

B. a plane

C. a spaceship

D. a satellite

2. Man will also have supersonic land travel         .  

A. in a year

B. about half a century later

C.in the year 2050

D. about a century later

3. The last paragraph mainly talks about _         .   

A. we'll make good use of space on the earth

B. cities under the sea

C. Japan will first build floating cities

D. earth's land is in danger
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