Last summer, I travelled to Meixian County with my friends. It is a small county at the foot of Taibai Mountain in Shanxi Province. We stayed there for one week and I__1__ my vacation because of the beautiful scenery at the top of the mountain.

I will__2__ forget the day when we climbed the main peak(山顶). The __3__in that area changes very quickly: it was sunny in the early morning when we set out, __4__ it began to rain heavily when we were only halfway up.

Soon，we were all__5__ and some of us wanted to go home. They said, “There is nothing__6__ here. We came to see the scenery，__7__the pouring rain！” However, the guide__8__， “Since we have got wet already, why not just go on with our journey？”

So we carried on up the mountain and，__9__we even noticed, the rain stopped and the sun was smiling again. When we reached the top of the peak, the view was unique (独特的)．

Up there, it was bright and clear. The sky was__10__and the air was fresh. The gentle wind made us feel cool. All the clouds were just like waves in the ocean, __11__ and falling under our feet. We could only see the peaks of mountains, as if they were __12__ floating sparsely (稀疏的) in the ocean. It was a really magical experience.

While we were enjoying the scene, the guide said __13__，“You see, I knew that there would be no rain above the clouds.”

It is __14__. While it may rain below the clouds, the sun is still there above them.

You will never see the sun __15__ you don't try your best to climb to the top of the mountain. If we had stopped and gone home when the rain was very heavy, we would never have seen the beautiful scenery __16__ the clouds. I think this is also true in __17__.

As the song says, “You won't see the rainbow unless you have gone through the thunder and storm.” I think in the__18__， whenever I have any difficulties in my life, I will remember the__19__from the top of Taibai Mountain and the __20__ which touched my heart deeply: There is no rain above the clouds.

1．A.spent　　　B．killed　　　C．had　　　D．enjoyed

2．A.ever       B．never      C．certainly  D．perhaps

3．A.scenery    B．cloud      C．sky       D．weather

4．A.so        B．while      C．but        D．instead

5．A.tired      B．hungry     C．angry      D．wet

6．A.necessary  B．fun       C．important    D．instructive

7．A.not       B．no         C．never      D．hardly

8．A.suggested  B．ordered     C．asked     D．demanded

9．A.when            B．before  C．while         D．then

10．A.dark          B．green      C．black         D．blue

11．A.jumping   B．dropping  C．going      D．rising

12．A.islands   B．fish       C．animals     D．waves

13．A.excited   B．proudly    C．angrily     D．happily

14．A.false     B．a lie        C．a guess     D．true

15．A.when     B．unless      C．if         D．while

16．A.over     B．on         C．above      D．under

17．A.study      B．rest       C．real world  D．life

18．A.past      B．present      C．future   D．life

19．A.weather   B．change     C．view      D．time

20．A.word    B．phrase       C．speech     D．sentence

Last week, I bought an alarm system(报警系统) for about $ 450. It consisted of a control unit with three other small units. I put the control unit in the sitting room and fastened the other units by the front door, back door and living-room windows. The instructions told us to choose three numbers, so we chose 491, the last three numbers of our telephone number.

Now I must explain how the alarm works:

1. There is a power siren(警报器) in the control unit. It makes a very loud noise.

2. Each of the small units sends out beams(光束) or rays in different directions. If anything moves, it breaks a beam. This sends a signal to the control unit. The siren makes a noise that you can hear 50 meters away.

3. When we go to bed, I press the three buttons numbered 4, 9 and 1. Then we have 30 seconds to get out of the room before the alarm starts to work.

That might I slept soundly because I was sure that no burglar(夜贼) could get into our house. However, at about 2:10a.m., I woke up and heard the siren(警报).

“There must be a burglar in the house,” Mary said. “What shall we do?”

“I’ll go and see who’s there,” I said. “Stay here. Don’t make a noise.”

I went downstairs quietly. When I reached the living room, I switched on my torch and looked round the room. Then I turned the light on. I switched the siren off and searched the rooms downstairs. There was nothing wrong except that the back door was unlocked. I locked it, re-set the alarm and went back to bed.

About an hour later, the alarm started again. I jumped out of bed, fell over a chair in the dark and bumped into the bedroom door. Mary woke up and started hitting me with a torch. “Hey! Wait a minute!” I whispered. “It’s only me. I’ m going downstairs to see what’s wrong.”

I went down into the living room and listened for a moment. The only sound I could hear was the siren. I turned on the light and then switched the siren off. As I did so, I glanced across at the curtains in front of the windows. I saw a house lizard (蜥蜴) disappear behind the curtains.

“Oh!” I said to myself. “That’s our burglar.”

When the lizard moved, it started the siren. I guessed that the alarm had been made in Europe, where there are no house lizards.

Well, I won’t finish this story but if you want an alarm system free of charge, let me know. I’ll send you ours. We bought a dog this morning. It knows the difference between a lizard and a burglar.

39. The writer bought an alarm system to         .

 A．make sure that he got up early every day

 B．warn him when there were lizards in his house

 C．frighten burglars and tell him that somebody had got into the house

 D．make Mary feel safe to live in the large room

40. The purpose of the three units was to           .

 A．send a message to the control unit and start the siren

 B．sound their own sirens when the control unit told them to

 C．check that the control unit worked properly all the time

 D．give them enough light

41. If the writer set the alarm and remained in the room for more than half a minute,          .

 A．nothing would happen B．the control unit would not work

 C．the siren would make a noise D．the dog would bark

42. The purpose of the writer in writing the passage is to            .

 A．tell us that the alarm system doesn’t work

 B．tell us an interesting experience

 C．show us how the alarm system works

 D．make it clear that he wants to give away his alarm system

Last week, I bought an alarm system for about $ 450. It consisted of a control unit with three small units. I put the control unit in the sitting-room and fastened the other units by the front door, back door and living-room windows. The instructions told us to choose three numbers, so we chose 4, 9 and 1, the last three numbers of our telephone number.

Now I must explain how the alarm works:

l There is a power siren(警报器) in the control unit. It makes a very loud noise.

2 Each of the small units sends out beams or rays in different directions. If anything moves, it breaks a beam. This sends a signal to the control unit. The siren makes a noise which you can hear 50 meters away.

3. When we go to bed, I press the three buttons numbered 4, 9 and 1. Then we have 30 seconds to get out of the room before the alarm starts to work.

That night I slept soundly because I was sure that no burglar(夜贼) could get into our house. However, at about 2:10 a. m., I woke up and heard the siren. “There must be a burglar in the house,” Mary said. “What shall we do?”“I’ll go and see who’s there,” I said. “Stay here. Don’t make a noise.”I went downstairs quietly. When I reached the living-room, I switched on my torch and looked round the room. Then I turned the light on. I switched the siren off and searched the rooms downstairs. There was nothing wrong except that the back door was unlocked. I locked it, reset the alarm and went back to bed. About an hour later, the alarm started again. I jumped out of bed, fell over a chair in the dark and bumped into the bedroom door. Mary woke up and started hitting me with a torch. “Hey! Wait a minute!” I whispered. “It’s only me. I’m going downstairs to see what’s wrong.”I went down into the living-room and listened for a moment. The only sound I could hear was the siren. I turned on the light and then switched the siren off. As I did so, I glanced across at the curtains in front of the windows. I saw a house lizard (a kind of small animal) disappear behind the curtains.“Oh!” I said to myself. “That’s our burglar. ”When the lizard moved, it started the siren. I guessed that the alarm had been made in Europe, where there are no house lizards. Well. I won’t finish this story but if you want an alarm system free of charge, let me know. I’ll send you ours. We bought a dog this morning. It knows the difference between a lizard and a burglar.

1.The writer bought an alarm system to ________.

2.The purpose of the three units was to________.

3.If the writer set the alarm and remained in the room for more than half a minute, _______.

4.The purpose of the writer in writing the passage is to ________.