题目内容

20.Interactive Home-security Systems
Tarik Celebi,who lives in San Francisco suburb,takes his home-security system with him to work,to dinner,just about anywhere.By his cell phone,he"arms"his home-security alarm from his car before he leaves for work.During his workday,he gets e-mail alerts every time his front door opens,even though he's miles away.If the door opens at an unusual time-say midday when no one should be coming or going-he can order a 30-second video clip(片段) from the camera that watches the door.If it's just his  mother-in-law getting a package delivery,no worries.
Celebi is one of the first users of the latest interactive home-security systems.In addition to sounding alarms when the house is broken into and notifying homeowners or police,as traditional systems do,the interactive systems give users new ways to remotely control their systems and their home environment.Different from traditional home-security alarms,which homeowners typically have to press buttons on a keypad to turn on before they leave their homes,the interactive systems enable consumers to arm and disarm systems from smart phones,iPads and PCs,no matter where they are.
Most traditional systems are set up to sound an alarm if doors or windows are opened. The interactive systems give homeowners more options.For example,users can elect when they want to be notified.They might want an e-mail or a text every time a door is opened,or only during the hours of 3to 4p.m.,when kids come home from school.Like Celebi,they can add cameras and get video clips when doors open.That could be helpful in making sure kids aren't bringing friends home when they're not supposed to.
Nationwide,about 20% of homes have.traditional home-security systems.About half stop using them because they tire of the trouble.Being able to arm systems even while dashing to the subway or while at work will increase their usage of the new interactive systems.Although the new functions add costs to home security,the interactive-systems are believed to push home-security systems'usage rates closer to 30%,which would be a big movement for an industry that's been largely stuck at 20% for the past decade."We all know it's going to get bigger,though we don't know how long it's going to take,"Eric Taylor,an officer from San Francisco Security Department says.
67.What may Celebi first do if his front door opens at a wrong time when he is away?D
A.Inform the police.                   B.Call his mother-in-law.
C.Arm the security alarm.              D.Observe through video.
68.The interactive systems enable the user toC.
A.improve his home environment remotely
B.lock his house's door while he is miles away
C.operate the home-security systems at any place
D.sound the alarm and inform the police at the same time
69.What's the advantage of the interactive systems over the traditional ones?D
A.They are cheaper.                B.They are easier to set up.
C.They can give quicker reaction.  D.They have more ways to inform the users.
70.What is the last paragraph mainly about?D
A.The importance of security industry.
B.The functions of the interactive alarms.
C.The popularity of home-security systems.
D.The market potential of the interactive systems.

分析 文章介绍了一种新型的互动家庭安全系统,和传统的安全系统相比,它们有很多好处,包括他们可以有更多的方式通知用户,所以更加实用,市场潜力很大.

解答 DCDD
67  D   细节题:从第一段的句子:If the door opens at an unusual time-say midday when no one should be coming or going-he can order a 30-second video clip(片段) from the camera that watches the door.可知如果在错误的时间他家的前门开了,Celebi 会通过摄像机观察.选D
68   C   细节题:从文章第二段的句子:the interactive systems enable consumers to arm and disarm systems from smart phones,iPads and PCs,no matter where they are.可知互动的家庭安全系统可以让用户在任何地方使用它,选C.
69    D    细节题:从第三段的句子:The interactive systems give homeowners more options.可知这种互动的系统比传统的系统有优势在于他们可以有更多的方式通知用户,选D.
70      D   段落大意题:从最后一段的句子:Although the new functions add costs to home security,the interactive-systems are believed to push home-security systems'usage rates closer to 30%,which would be a big movement for an industry that's been largely stuck at 20% for the past decade.可知这段主要讲的是这种互动家庭安全系统的市场潜力.选D.

点评 学生需要认真阅读原文,把握文章大意,对文章脉络有整体的了解,能仔细查找文中细节,并能根据文章内容进行合理的推测判断.

练习册系列答案
相关题目
8.Humans aren't the only ones getting a buzz from coffee.Caffeine can improve memory among honeybees and lead to better pollination(授粉).According to a recent study published in the journal Science.
The study was conducted by a team of researchers at Newcastle University in the United Kingdom.They found that the nectar(花蜜) of some flowers,such as those from grapefruit and lemon plants,as well as certain coffee flowers,contains low doses of caffeine.To get bees to feed on these flowers,the team trained the insects to associate food with the smell of the flowers.They also trained another group of bees to feed on nectar from flowers that were sweetened with a sugar,but did not contain caffeine.After 24 hours,the bees trained on caffeinated flowers returned to these plants three times as often as those trained on the sweetened flowers returned to the uncaffeinated plants.
Professor Geraldine Wright led the researchers."Remembering floral traits (花部特征) is difficult for bees to perform at a fast pace as they fly from flower to flower and we found that caffeine helps the bee remember where the flowers are,"Wright said in a statement.
Improved memory led to the better pollination.That's because once bees sip the caffeine nectar,they continue to look for more coffee plants to pollinate.This also suggests that caffeine plays a role in improving the bees'ability to search for food.
Researchers found that caffeine's effect on the bee brain is similar to its effect on mammals."The change is similar to that produced by caffeine in neurons (神经元)"associated with learning and memory in the rat brain,"Wright said.
Bee populations have declining since 2007.The dramatic drop in the insects'numbers has serious effects for ecosystems and the farming industry.Bees are needed in the reproduction of crops and spreading wild flower species.Understanding what keeps bees buzzing could help to make sure that the insects are able to remember and pollinate their favorite flowers.

56.Which of the following is mentioned in the passage?C
A.Caffeine has no effect on the rat brain.
B.Bee population has been increasing.
C.The nectar of lemon plants contains caffeine.
D.Bees dislike nectar from sweetened flowers.
57.After reading the passage,John,who works in the farming industry,will probably feelD.
A.annoyed          
B.angry               
C.nervous         
D.excited
58.Which of the following relationship is correct according to the passage?B
A.improved memory-caffeine nectar-better pollination
B.caffeine nectar-improved memory-better pollination
C.improved memory-better pollination-caffeine nectar
D.caffeine nectar-better pollination-improved memory
59.We can know from the passage thatA.
A.the rat is a mammal                      
B.caffeine has nothing to do with memory
C.bees are good at remembering floral traits      
D.Geraldine Wright did the research on his own
60.What section of a newspaper may this passage be taken from?A
A.Science              
B.Education           
C.Culture         
D.Sports.
15.When you think of tree frogs,heat and rainforests come to mind.While the equatorial regions are home to many tree frogs,including the popular and colorful red-eyed tree frogs,the northeastern United States is home to gray tree frogs.
If you live in an area with gray tree frogs,you are more likely to hear them than see them.Gray tree frogs will call from up high during the day and well into August; many people mistake their calls for birdcalls.Their color can be different,even with the same tree frog at different times of the day.Younger tree frogs are sometimes green instead of gray.
If you're trying to find and observe these guys,you might notice that they will call loudly until you get close enough to find their location.Then they will go silent,becoming almost invisible in the leaves.They like to lie close to the foot of trees,but unless they are low down they can't easily be found.
One tree frog can eat 100 mosquitoes in a moment.Sometimes at night during the chorus,they are a little easier to find as there are many frogs in the water,and they are usually"love drunk".They can be picked up and will continue to call from your hand.In fact,calling is a big deal for gray tree frogs.It takes a lot of energy,and males will often have to take a night off to recover after spending time in the chorus.Females seem to prefer the long calls to the short ones,and will head in the direction of those calls.
So next time you hear that"bird"calling from the trees in the summer,take a closer look and listen.You may find tree frogs closer to your homes than you think!

60.Which of the following is the main idea of the first paragraph?A
A.Nesting areas for tree frogs.       B.Different types of tree frogs.
C.Brief introduction of rainforests.  D.Description of the equatorial regions.
61.It is implied in the text thatC.
A.tree frogs live in the areas of the equatorial regions
B.tree frogs can eat a lot of mosquitoes within a minute
C.tree frogs'color can be different during the time of their growth
D.you can hear tree frogs calling from the tree in the summer
62.If you hold a tree frog in your hand,what will happen to it?B
A.It will make a loud cry. B.It will continue calling.
C.It will change its color.  D.It will go silent.
63.What does the author suggest doing while hearing the tree frogs calling?D
A.Living in an area with tree frogs.   B.Getting close enough to find their location.
C.Watching them at night in the water. D.Taking a close look and listening.
10.A blind dateCan you imagine what life would be like if you couldn't see?At a new exhibition,you can experience the world using your other senses:touch,hearing,smell,taste and sense of balance to‘see'without using your eyes.Learn to understand beauty in a totally new way!Find out what things look like when you are not looking at all!
At the Invisible Exhibition,you can learn about the practical aspects of being blind.Try out useful devices that make life easier for visually-impaired people,such as talking clocks,Braille typewriters,and computer screen reading software.Have a go at crossing the road using a walking stick with a sensor.Experience what it is like to do your shopping without seeing what you are buying,or build first impressions of a person based on their voice and tone,not on their appearance.
But there is more to life than practicality!The Exhibition also allows you to explore art:touch sculptures,hear descriptions of paintings and photographs,and listen to music in complete darkness.Experience what it feels like to have dinner in the dark.Spend an evening at the Invisible Restaurant:eat in a relaxed atmosphere,surrounded by the tastes and smells of a delicious meal,and the sounds of good conversation and quiet music.Bring someone on a real blind date-and show them a world they have never‘seen'before.
To book tickets for the exhibition or a table for dinner (Thursdays only),call 020 771 4236.Allow 90minutes for the exhibition,and around three hours for dinner.
Exhibition runs from Saturday 9th April until 3rd September.
Prices:Exhibition?5; two-course dinner?16; four-course dinner?22.Download the menu on our website.
41.The new exhibition allows people toC
A.experience the world using all of their primary senses.
B.understand how much we rely on our sight.
C.experience the power of senses other than sight.
D.see details that they may have overlooked.
42.The exhibition is designedC
A.to demonstrate innovations which help people in their everyday lives.
B.for blind people to socialise and meet other blind people.
C.to help sighted people understand what life is like for blind people.
D.to allow more people to experience culture and art.
43.When you explore art at the exhibition,youC
A.can only use your sense of touch.
B.can listen to artists talking about their sculptures.
C.can feel objects and listen to people talking about pictures.
D.can compare experiences in light and in darkness.
44.At the restaurant,youA
A.can have conversations with blind people.
B.can choose the dishes you want by tasting them first.
C.must book a table for two.
D.can choose between two different menus.
45.The purpose of the text is toC
A.inform people about a permanent museum display.
B.encourage people to sympathise with people who have disabilities.
C.advertise a new and stimulating experience.
D.give a review of an unusual restaurant.

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