I _____ when it began to rain．

I _____ when it began to rain．

       A．was about to going out            B．was in the point of going out

       C．was on the point of going out      D．both A and C

 I _____ when it began to rain．

       A．was about to going out                    B．was in the point of going out

       C．was on the point of going out             D．both A and C

Al Ossinger，an experienced mountain guide，knew it was time to leave Longs Peak in Colorado’s Rocky Mountain National Park，and get off‘quickly．The sky had turned threatening dark，and his ice ax at times gave out upset sounds．Suddenly，as Ossinger was  crossing a large mass of rock，both hands pressed against it for balance，there was a roar，a flash of light and an electric current charged through his arms．

“In that second. I thought 1 was finished，”he said，“Then I realized 1 was still there―the jolt(震动)hadn’t knocked me off．My body and legs were all right，but my arms  were paralyzed from the shoulder down．’’Fortunately Ossinger was able to continue down and soon the feeling began to return to his shoulders，upper arms，and，two hours later，his fingertips．Ossinger was a lucky man．

A single stroke of lightning，which is usually three to four miles long，travels at speeds of up to 100，000 miles per second．In a single flash，it can carry 100 million volts of electricity and reach a temperature of 55，000 degrees Fahrenheit，five times hotter than the surface of the sun．During its brief life span，lightning carries enough energy to power  a 100-watt light bulb for as long as three months．If you find yourself unlucky enough to be  near lightning’s path，you could suffer a direct hit，sending electrical current though your body for some 5 00 milli-seconds．Because of the short duration，severe burns aren’t common and the resulting burns are usually superficial(表面的)．

According to the national Weather Service，more people have been killed by lightning in the United States during the past 30 years，an average of 87 a year-than by either tornadoes or hurricanes，484 people were injured in 1994 alone．These“swords from the sky” are also responsible for an estimated$100 million to$300 million of property damage a year．During the 1980s an average of 5502 wildfires a year were sparked by lightning on national forest lands alone．

Earth is struck by at 1east 100 of these flashes every second-more than 8．6 million strikes a day．For all its destructive power，lightning has its good sides too．It’s likely that humans discovered fire from some early lightning-sparked flames．And all that activity above the earth may help create ozone(臭氧)，which protects us from the sun’s harmful rays．Lightning dancing across a summer night sky is a force to be respected and appreciated-from a distance．

68．Electrical lightning is called“swords from the sky”to mean_________．

A．it looks 1ike swords                                    B．it can kill people

C．it is sent by God                                         D．it comes naturally

69．When Ossinger felt some electrical current charged through his arms，_________．

A．he thought it was going to rain                     B．he dared not move about any more

C．he tried to move further up                          D．he thought his arms wouldn’t move

70．According to the passage we can say that____________________.

A．people caught by lightning may go disabled at once

B．1ightning strikes may do harms to human beings

C．more forest fires will be caused by lightning

D．1ightning is a rich energy resource to humans

71．In the passage the author implies that__________．

A．we all should try to avoid all thunderstorms

B．we should make full use of the lightening

C．we should recognize the positive effects of lightning

D．we should learn about the lightning as much as possible

阅读理解

　　It was already late when we set out for the next town, which according to the map was about fifteen miles away on the other side of the hills.

　　There we felt sure that we would find a bed for the night. Darkness fell soon after we left the village, but luckily we met no one as we drove fast along the narrow winding road that led to the hills. As we climbed higher, it became colder and rain began to fall, making it difficult at times to see the road. I asked John, my companion, to drive more slowly.

　　After we had travelled for about twenty miles, there was still no sign of the town which was marked on the map. We were beginning to get worried. Then, without warning, the car stopped. A quick examination showed that we had run out of petrol(汽油). Although we had little food with us, we decided to spend the night in the car.

　　Our meal was soon over. I tried to go to sleep at once, but John, who was a poor sleeper, got out of the car after a few minutes and went for a walk up the hill. Soon he came running back. From the top of the hill he had seen, in the valley below, the lights of the town we were looking for. We at once unloaded (卸)all our luggage (行李)and with a great effort, managed to push the ear to the top of the hill. Then we went back for the luggage, loaded(装)the car again and set off down the hill. In less than a quarter of an hour we were in the town, where we found a hotel quite easily.

(1)The travellers had a map but ________.

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A．they did not know how to use it

B．it gave them the wrong information

C．they could not see it in the dark

D．the town they were looking for was not clearly marked

(2)“Winding”in this passage means ________.

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(3)The ear stopped because ________.

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A．they had travelled more than 20 miles

B．the petrol ran out of it

C．there was no petrol leftp

D．they were going uphill

(4)John discovered ________.

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(5)To get to the town took them ________.

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