B
A new phone app uses vibrations from smart phones to warn people of earthquakes.
The phone app recognises sudden shaking of the earth's surface through sensors(传感器) in smart phones. The new app is called MyShake. It is the work of four researchers at the University of California, Berkeley. They said they created a worldwide warning system that would inform people and give them time to prepare. The MyShake app is available only for Android phones.
Smart phones are equipped with accelerometers(加速器). These instruments measure movement, like that of a car or an airplane. They can also measure the shaking of machines, buildings or other structures.
Accelerometers are used in activity trackers and apps that count steps or other exercise. They are also used in global positioning system(GPS) apps.
MyShake uses phone accelerometers to measure seismic(地震的) activity. It has been programmed to tell the difference between normal activity and seismic activity. The smart phones with MyShake will send seismic information to the app developers. If the developers receive a lot of information from one area, the app will recognise that an earthquake may be taking place or will take place soon. Using information sent from the app, the warning network then judges the location and strength of the earthquake in real time. MyShake can record 5.0－magnitude earthquakes at a distance of 10 kilometers or less. MyShake uses very little power, according to its developers. Only when seismic activity is sensed by the app does it become active and send data to the network.
The app works best when your phone is resting on a flat surface, like a table.
The app also shows ways to be safer during an earthquake. The developers said it would become more effective as more people used it.
4．What can we know about MyShake?
A．It's the name of a new smart phone.
B．It can be applied to all kinds of phones.
C．It can warn people of coming earthquakes.
D．It can prevent earthquakes from happening quickly.
5．Why are accelerometers used in MyShake?
A．To position where the user is.
B．To count steps or other exercise.
C．To measure seismic activity.
D．To measure the shaking of buildings.
6．What can make MyShake function better?
A．Making more people use it.
B．Keeping it active all the time.
C．Placing the phone as high as possible.
D．Having it send data to the network frequently.
7．What's the best title for the text?
A．A new phone app feels earthquakes
B．A new phone app makes smart phones safer
C．A new phone app helps prevent earthquakes
D．A new phone app keeps you safer in the earthquake
B
【语篇解读】 本文为说明文，介绍了一个新的智能手机软件，它能感应到地震，从而可以向人们发出地震预警。
4．C 细节理解题。根据第一段与第二段中的“They said they created a worldwide warning system... to prepare”可知，他们(通过这个软件)创造了一个全球警报系统，可以预警地震，让人们有时间逃生。
5．C 细节理解题。根据第五段的首句“MyShake uses phone accelerometers to measure seismic(地震的)activity”可知，MyShake使用加速器来测量地震活动。
6．A 推理判断题。根据文章最后一段中的“The developers said it would become more effective as more people used it”可知，随着越来越多的人使用这款软件，它会更加有效。
7．A 标题归纳题。根据全文内容可知，本文主要介绍了一个能感应地震发生的智能手机软件。
A new phone app uses vibrations from smart phones to warn people of earthquakes.
The phone app recognises sudden shaking of the earth's surface through sensors(传感器) in smart phones. The new app is called MyShake. It is the work of four researchers at the University of California, Berkeley. They said they created a worldwide warning system that would inform people and give them time to prepare. The MyShake app is available only for Android phones.
Smart phones are equipped with accelerometers(加速器). These instruments measure movement, like that of a car or an airplane. They can also measure the shaking of machines, buildings or other structures.
Accelerometers are used in activity trackers and apps that count steps or other exercise. They are also used in global positioning system(GPS) apps.
MyShake uses phone accelerometers to measure seismic(地震的) activity. It has been programmed to tell the difference between normal activity and seismic activity. The smart phones with MyShake will send seismic information to the app developers. If the developers receive a lot of information from one area, the app will recognise that an earthquake may be taking place or will take place soon. Using information sent from the app, the warning network then judges the location and strength of the earthquake in real time. MyShake can record 5.0－magnitude earthquakes at a distance of 10 kilometers or less. MyShake uses very little power, according to its developers. Only when seismic activity is sensed by the app does it become active and send data to the network.
The app works best when your phone is resting on a flat surface, like a table.
The app also shows ways to be safer during an earthquake. The developers said it would become more effective as more people used it.
4．What can we know about MyShake?
A．It's the name of a new smart phone.
B．It can be applied to all kinds of phones.
C．It can warn people of coming earthquakes.
D．It can prevent earthquakes from happening quickly.
5．Why are accelerometers used in MyShake?
A．To position where the user is.
B．To count steps or other exercise.
C．To measure seismic activity.
D．To measure the shaking of buildings.
6．What can make MyShake function better?
A．Making more people use it.
B．Keeping it active all the time.
C．Placing the phone as high as possible.
D．Having it send data to the network frequently.
7．What's the best title for the text?
A．A new phone app feels earthquakes
B．A new phone app makes smart phones safer
C．A new phone app helps prevent earthquakes
D．A new phone app keeps you safer in the earthquake
B
【语篇解读】 本文为说明文，介绍了一个新的智能手机软件，它能感应到地震，从而可以向人们发出地震预警。
4．C 细节理解题。根据第一段与第二段中的“They said they created a worldwide warning system... to prepare”可知，他们(通过这个软件)创造了一个全球警报系统，可以预警地震，让人们有时间逃生。
5．C 细节理解题。根据第五段的首句“MyShake uses phone accelerometers to measure seismic(地震的)activity”可知，MyShake使用加速器来测量地震活动。
6．A 推理判断题。根据文章最后一段中的“The developers said it would become more effective as more people used it”可知，随着越来越多的人使用这款软件，它会更加有效。
7．A 标题归纳题。根据全文内容可知，本文主要介绍了一个能感应地震发生的智能手机软件。
