【题目】A

A new phone app uses vibrations from smartphones to alert people about earthquakes.

The phone app recognizes sudden shaking of the earths surface through sensors in smartphones. 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. Other earthquake apps include QuakeFeed, Quakes and Earthquake. They show where earthquakes have happened, at what strength, and the aftershocks. Those use data from the U.S. Geological Survey. The MyShake app is available only for Android phones.

Smartphones are equipped with accelerometers(加速计). These instruments measure movement, like that of a car or airplane. They can also measure the shaking of a machine, a building or other structures. Accelerometers are used in activity trackers and apps that count steps or other exercise. They also are used in global positioning system apps, also called GPS. MyShake uses phone accelerometers to measure seismic activity. It has been programmed to know the difference between normal activity and earthquake movement. The software developers say their app is right 93 percent of the time.

A smartphone sends seismic information to the app developers. If the developers receive several notifications from one area, it recognizes that an earthquake may be taking place or will take place soon. Using information sent from the app, the network then estimates 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 little power, according to its developers. Only when seismic activity is sensed by the app does it become active and sends data to the network.

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 known as the EEW. The EEW has deployed sensors for measuring quakes in many areas. In places where no such equipment exists, MyShake may be the only method of early quake detection.

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 reduce the effects of earthquakes on us as individuals and on society as a whole, say the researchers. And they hope to add a feature that would warn people of a possible tsunami, or the huge waves after an earthquake.

【1】According to the researchers from Berkeley, the new app MyShake can _______.

A. shake sensors in smartphones to recognize different earthquakes

B. make people aware of earthquakes in advance

C. help find goods ways to prevent earthquakes

D. predict earthquakes as well as other disasters

2 Whats the critical factor for the MyShake when it works?

A. GPS. B. Power. C. Accelerometer. D. EEW.

【题目】根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

How to Be a Good Pet Owner

Pet-sitting can be very rewarding and profitable. This is certainly something you should think about doing if you love animals. Here's the information you will need to get started.

1.Give them food and water.

Any living being needs water in order to survive. 1 It’s best to change the water daily to keep it clean.

Give your pet the food meant specifically for that type of pet. It helps even more if it’s the same food it ate before you got it. 2 Do not overfeed or not give it enough food

2. 3

Typically a pet’s habitat should be clean, so it is a good environment for the animal. Clean it at least once a week or any other times if necessary, otherwise the animal will get sick more, feel unhappy, and may even become more aggressive .

3. Socialize with your pet.

Always pay attention to the animal. 4 Some pets suffer separation anxiety when their owners are away. They may chew or scratch up furniture in their anxiety. Try to avoid this.

4. Make sure your pet is healthy.

5 Bad teeth and refusing to play or even eat could mean something is wrong. Try to get your pet to the vet at least once a year! Your pet will thank you for giving it a healthy lifetime.

A. Bathe your pet and keep it clean.

B. Always give your pet the right amount of food.

C. Pets are mainly meant for companionship.

D. You’d better check the water first with your hand.

E. But make sure the water is fresh and clean.

F. Often check for signs of illness.

G. Clean the cage of your pet often enough.

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