题目内容

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 ________.

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

2.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 so

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

D.give them enough light

3.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

4.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

 

【答案】

1.C

2.A

3.C

4.B

【解析】文章介绍了作者购买alarm system以后的趣事。

1.推理题。根据文章内容可知作者买an alarm system的目的是防盗。

2.推理题。根据This sends a signal to the control unit. The siren makes a noise which you can hear 50 meters away.可知三个单元的目的是为了发送信号。发出报警声。

3.细节题。根据Then we have 30 seconds to get out of the room before the alarm starts to work.可知C正确。

4.主旨大意题。文章介绍了作者购买alarm system的趣事。

 

练习册系列答案
相关题目

Michelle Obama made a daring decision to return to the same designer who created her Inaugural (就职)Ball dress four years ago --- and the risk paid off.

The First Lady looked extremely attractive in a thin, sweeping, and ruby-colored dress by designer Jason Wu. She teamed the dramatic dress with heels by Jimmy Choo and a diamond ring by Kimberly McDonald.

She surprised the fashion establishment by returning to a Wu design which had been the custom made for her.

Four years ago at her first Inauguration Ball, Michelle shimmered(熠熠生辉)in an off-white, one-shouldered floor-length dress by the designer.

Wu, who was 26 at the time and had only been working in fashion for three years, saw his career take off after the First Lady's surprise decision to wear one of his dresses.

He said at the time that he was unaware she had chosen the dress and had been watching at home on his couch and eating pizza when she appeared.

After her 2013 decision, Wu told Women's Wear Daily: “Mrs Obama likes to keep her secrets. She fooled me again.”

Wu released a women's clothing and accessories(装饰品)collection at Target last year and continues to be popular with the First Lady for official engagements.

The sleeveless, cross-halter neck dress with low-cut back flattered(突出)49-year-old Michelle's arms and neat waist.

It had been created especially for her by Wu and was a departure from the dark and plain colour tone she stuck to at earlier inauguration events.

Mrs Obama's new hairstyle -- she had bangs(美发沙龙)cut on her birthday last week  had been loosely tousled(蓬松的)for the special night.

Vice-President Joe Biden's wife Jill also looked attractive in a blue silk dress by Vera Wang at the Inauguration Ball.

1.What does the passage mainly talk about?

A.Michelle Obama’s inaugural ball dress.

B.Wu, a great designer.

C.The First Lady’s secrets.

D.Mrs Obama’s 2013 decision.

2.Michelle Obama’s brave decision proved to be a_________.

A.risk                                  B.danger

C. Surprise                             D.success

3. According to the passage, which of the following is correct?

A.Mrs Obama’s inaugural dresses were made by the same designer.

B.Joe Biden’s wife Jill also had her dress created by Wu.

C.The colour tone at Michelle’s earlier inaugural events was not satifactory.

D.Mrs Obama had straight forehead hair as her new hairstyle for the special night.

4. Which of the following best describes Jason Wu?

A.Daring and gifted.

B.Unusual and cautious.

C.Careful and brave.

D.Talented and lucky.

5. From the 6th and 7th paragraphs we know that________.

A.Wu was aware that Mrs Obama had chosen his work again

B.Wu didn’t know Mrs Obama had chosen his creation again.

C.Mrs Obama told Wu to give away her secrets

D.Mrs Obama should have told Wu the truth

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网