dogs didn't preferentially approach the tastier plate afterward.You could say dogs watch for the interaction between two people, not just how a person reacts.Yet a previous study found dogs will choose boxes that people reacted to happily, but not boxes people reacted to with a disgusted face.

　　Well, either way, you can be sure Fluffs is keeping an eye on you, to the best of her ability.The study was published in the journal PLOS ONE.

　　1．What does the study mentioned in Paragraph 1 show?

　　A．Dogs prefer yummier food.

　　B．Dogs like to copy humans' behavior.

　　C．Dogs can interact with humans easily.

　　D．Dogs can read human actions and feelings.

　　2．What does the underlined word "gross" probably mean?

　　A．Disgusting.　　　　　B．Healthy.

　　C．Yummy. D．Hot.

　　3．What can be concluded from Paragraph 4 ?

　　A．Interactions between two people confuse dogs.

　　B．Dogs never understand the reaction of one person.

　　C．Dogs have good interactions with one another.

　　D．The findings of some studies are controversial.

　　4．Which is the best title for the passage?

　　A．Man's Best Friend

　　B．Be Kind to Your Dog

　　C．Dog's Amazing Ability

　　D．Dogs Are Observing You

　　B

　　The weather affects many aspects of people's daily life. Knowing and understanding what the weather is doing will be useful.

　　However, the weather is also one of the most unpredictable elements in the world. Although many people watch the morning news gathering the information that is needed about the weather, this is often wrong. Whole days can be ruined by believing that the weather will be one thing, when it turns out to be another. However, owning wireless weather stations allows the owners to monitor the weather for themselves.

　　Not only will these weather stations allow the owners to see what the weather is doing, but it is personalized to them and their area. Wireless weather stations are specifically for the immediate neighborhood. Plans will be able to be made, and important decisions will no longer be ruined by bad weather.

　　Although these weather stations are typically seen in homes, they can also be used very easily on farms and fishing boats. Both farmers and fishermen rely on the weather for their business and using up­to­date weather information is essential. By using the wireless weather stations, they can determine when to harvest crops and head back to the shore. Due to the light size of the weather stations, they can be moved very easily and used anywhere they are needed.

　　Although the wireless weather stations are great for all homes, they are especially useful for areas that suffer from extreme weather conditions.

　　The up­to­date, instant weather reports will allow a person to monitor what the weather is doing and if the bad weather is heading in their direction. Extreme weather tends to come very quickly; therefore, any information that is received is helpful.

The weather stations are very simple to set up and are run by solar panels (太阳能电池板), ensuring they will work even if there is a power cut.