A new phone app uses vibrations from smart phones to warn people about earthquakes.
The phone app _______ sudden shaking of the earth’s surface through sensors in smart phones. It 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 _______ people and give them time to prepare. The MyShake app is _______ only for Android phones.
Smart phones are _______ accelerometers (加速度感应器). These instruments measure movement, like that of a car or airplane. MyShake uses phone accelerometers to measure seismic (地震的) activity. It has been _______ to know the difference between normal activity and earthquake movement. The software developers say their app is right 93 percent of the time.
A smart phone sends seismic information to the app developers. If the developers receive several notifications _______, it recognizes that an earthquake might be taking place or will take place soon.
Using information sent from the app, the network then _______ the location and strength of the quake in real time. MyShake can record magnitude 5.0 earthquakes at distances of 10 kilometers or less.
MyShake uses very _______ power, according to its developers. Only when seismic activity is _______ by the app does it become active and sends data to the network. The app works best when your phone is resting on a ________ surface, like a table.
The developers hope that MyShake can add to information collected by the U.S. Geological Survey. That U.S. agency has created the Earthquake Early Warning System, also ________ EEW. The EEW has deployed (部署) sensors for measuring quakes in many areas.
In places where no such equipment ________, MyShake may be the only method of early quake ________. The app also shows ways to stay safer during an earthquake. The developers say it will become more effective as more people use it.
“Our goal is to build a worldwide seismic network and use the data to________ the effects of earthquakes on us as individuals and on society as a whole,” say the researchers.
The developers say they hope to add a feature that would ________ people about a possible tsunami: a huge wave after an earthquake.
【小题1】A.reports | B.recognizes | C.reveals | D.reviews |
【小题2】A.infer | B.include | C.influence | D.inform |
【小题3】A.acquired | B.available | C.affordable | D.approachable |
【小题4】A.equipped with | B.made up of | C.filled with | D.in need of |
【小题5】A.programmed | B.protected | C.prohibited | D.promised |
【小题6】A.from different places | B.from one area | C.from the same phone | D.from another developer |
【小题7】A.controls | B.connects | C.estimates | D.receives |
【小题8】A.much | B.little | C.excessive | D.green |
【小题9】A.activated | B.sensed | C.resisted | D.issued |
【小题10】A.low | B.wooden | C.high | D.flat |
【小题11】A.honored with | B.called for | C.known as | D.defined as |
【小题12】A.exists | B.forms | C.counts | D.exploits |
【小题13】A.protection | B.diagnosis | C.detection | D.resistance |
【小题14】A.raise | B.receive | C.record | D.reduce |
【小题15】A.confirm | B.appoint | C.alert | D.acknowledge |