Why Dogs Bury Their Favorite BonesYou may find it crazy that your dog buries his favorite bone or chew toy, only to dig it up a day or two later, but there is actually a reason behind it——it is simply in their nature. For thousands of years, dogs have buried their bones. The practice itself started long before dogs were even pets when they had to bury bones to survive.When dogs lived in the wild, sometimes food was scarce. If they were able to find food,dogs became very protective of it, Sometimes they would have more bones than they could eat for one meal. To keep other dogs and animals from stealing their bones, dogs would bury them in the ground. When it was time for the next meal, they would dig up their bones and enjoy them again. This would continue until the bones were gone.Even though most dogs have plenty of food to eat today, their instincts still tell them to bury their bones and favorite toys. They do this to keep other dogs and animals from stealing them, just like their ancestors did. Some dogs keep at least two bones buried at once. When they want to dig up one, they wil bury one more. This may leave a backyard full of holes and bones.How do dogs decide where to bury their bones? A dog cannot bury a bone just anywhere.He must first find the perfect spot. This involves using his nose to find a spot that is free from other dogs and animals. Often it is near a tree or a large rock, but it could be anywhere in the yard. Once the dog finds the perfect spot, he uses his front paws to dig a hole, drops the bone in and covers up the hole to protect his treasure.Dogs use their paws to find spots for burying bones.

Why Dogs Bury Their Favorite BonesYou may find it crazy that your dog buries his favorite bone or chew toy, only to dig it up a day or two later, but there is actually a reason behind it——it is simply in their nature. For thousands of years, dogs have buried their bones. The practice itself started long before dogs were even pets when they had to bury bones to survive.When dogs lived in the wild, sometimes food was scarce. If they were able to find food,dogs became very protective of it, Sometimes they would have more bones than they could eat for one meal. To keep other dogs and animals from stealing their bones, dogs would bury them in the ground. When it was time for the next meal, they would dig up their bones and enjoy them again. This would continue until the bones were gone.Even though most dogs have plenty of food to eat today, their instincts still tell them to bury their bones and favorite toys. They do this to keep other dogs and animals from stealing them, just like their ancestors did. Some dogs keep at least two bones buried at once. When they want to dig up one, they wil bury one more. This may leave a backyard full of holes and bones.How do dogs decide where to bury their bones? A dog cannot bury a bone just anywhere.He must first find the perfect spot. This involves using his nose to find a spot that is free from other dogs and animals. Often it is near a tree or a large rock, but it could be anywhere in the yard. Once the dog finds the perfect spot, he uses his front paws to dig a hole, drops the bone in and covers up the hole to protect his treasure.Dogs bury more bones than chew toys.

Public Wi-Fi Users Neglect SafetyA recent survey shows that 25% of Internet users have done online banking through public Wi-Fi in the last three months. It also shows that 27% have bought a product or service with a credit card this way.Experts worry that hackers (黑客) wil take advantage of these practices. Doug Shadel said that hackers usually attack in two ways. They may create Wi-Fi hotspots that have the same name of the ones you trust, such as a hotel or a coffee shop. They may also provide a stronger Wi-Fi signal to get between you and the safe hotspot. In either case, the hackers can see your email, credit card information, user names and passwords.Sometimes hackers just set up their electronic traps near a business where people enjoy the free Wi-Fi. "In most cases they are after your personal information," Shadel said. "If you use the same user name and password for many accounts, they can get into them all. It's possible for any hacker to do it. The software to hack into a Wi-Fi network is available at little or no cost.""It's difficult for people to know if a Wi-Fi network is safe," Shadel said. "So you should just think they are not. Any shared Internet access, free or paid, carries the same level of risk.It is safe only when you or someone you trust directly controls it."Shadel sometimes checks email through public Wi-Fi. But he never does any banking that way. In an unfamiliar place, he uses a Virtual Private Network (VPN). “This service creates a passage between your device and a safe place on the Internet," he said.A recent survey finds that 25% of Internet users use public Wi-Fi to ().

Public Wi-Fi Users Neglect SafetyA recent survey shows that 25% of Internet users have done online banking through public Wi-Fi in the last three months. It also shows that 27% have bought a product or service with a credit card this way.Experts worry that hackers (黑客) will  take advantage of these practices. Doug Shadel said that hackers usually attack in two ways. They may create Wi-Fi hotspots that have the same name of the ones you trust, such as a hotel or a coffee shop. They may also provide a stronger Wi-Fi signal to get between you and the safe hotspot. In either case, the hackers can see your email, credit card information, user names and passwords.Sometimes hackers just set up their electronic traps near a business where people enjoy the free Wi-Fi. "In most cases they are after your personal information," Shadel said. "If you use the same user name and password for many accounts, they can get into them all. It's possible for any hacker to do it. The software to hack into a Wi-Fi network is available at little or no cost.""It's difficult for people to know if a Wi-Fi network is safe," Shadel said. "So you should just think they are not. Any shared Internet access, free or paid, carries the same level of risk.It is safe only when you or someone you trust directly controls it."Shadel sometimes checks email through public Wi-Fi. But he never does any banking that way. In an unfamiliar place, he uses a Virtual Private Network (VPN). “This service creates a passage between your device and a safe place on the Internet," he said.The phrase "take advantage of" (Para. 2) can best be replaced by "()".

Public Wi-Fi Users Neglect SafetyA recent survey shows that 25% of Internet users have done online banking through public Wi-Fi in the last three months. It also shows that 27% have bought a product or service with a credit card this way.Experts worry that hackers (黑客) wil take advantage of these practices. Doug Shadel said that hackers usually attack in two ways. They may create Wi-Fi hotspots that have the same name of the ones you trust, such as a hotel or a coffee shop. They may also provide a stronger Wi-Fi signal to get between you and the safe hotspot. In either case, the hackers can see your email, credit card information, user names and passwords.Sometimes hackers just set up their electronic traps near a business where people enjoy the free Wi-Fi. "In most cases they are after your personal information," Shadel said. "If you use the same user name and password for many accounts, they can get into them all. It's possible for any hacker to do it. The software to hack into a Wi-Fi network is available at little or no cost.""It's difficult for people to know if a Wi-Fi network is safe," Shadel said. "So you should just think they are not. Any shared Internet access, free or paid, carries the same level of risk.It is safe only when you or someone you trust directly controls it."Shadel sometimes checks email through public Wi-Fi. But he never does any banking that way. In an unfamiliar place, he uses a Virtual Private Network (VPN). “This service creates a passage between your device and a safe place on the Internet," he said.According to Shadel, any hacker can ()

Public Wi-Fi Users Neglect SafetyA recent survey shows that 25% of Internet users have done online banking through public Wi-Fi in the last three months. It also shows that 27% have bought a product or service with a credit card this way.Experts worry that hackers (黑客) wil take advantage of these practices. Doug Shadel said that hackers usually attack in two ways. They may create Wi-Fi hotspots that have the same name of the ones you trust, such as a hotel or a coffee shop. They may also provide a stronger Wi-Fi signal to get between you and the safe hotspot. In either case, the hackers can see your email, credit card information, user names and passwords.Sometimes hackers just set up their electronic traps near a business where people enjoy the free Wi-Fi. "In most cases they are after your personal information," Shadel said. "If you use the same user name and password for many accounts, they can get into them all. It's possible for any hacker to do it. The software to hack into a Wi-Fi network is available at little or no cost.""It's difficult for people to know if a Wi-Fi network is safe," Shadel said. "So you should just think they are not. Any shared Internet access, free or paid, carries the same level of risk.It is safe only when you or someone you trust directly controls it."Shadel sometimes checks email through public Wi-Fi. But he never does any banking that way. In an unfamiliar place, he uses a Virtual Private Network (VPN). “This service creates a passage between your device and a safe place on the Internet," he said.For the sake of safety, Internet users are advised to ().

Public Wi-Fi Users Neglect SafetyA recent survey shows that 25% of Internet users have done online banking through public Wi-Fi in the last three months. It also shows that 27% have bought a product or service with a credit card this way.Experts worry that hackers (黑客) wil take advantage of these practices. Doug Shadel said that hackers usually attack in two ways. They may create Wi-Fi hotspots that have the same name of the ones you trust, such as a hotel or a coffee shop. They may also provide a stronger Wi-Fi signal to get between you and the safe hotspot. In either case, the hackers can see your email, credit card information, user names and passwords.Sometimes hackers just set up their electronic traps near a business where people enjoy the free Wi-Fi. "In most cases they are after your personal information," Shadel said. "If you use the same user name and password for many accounts, they can get into them all. It's possible for any hacker to do it. The software to hack into a Wi-Fi network is available at little or no cost.""It's difficult for people to know if a Wi-Fi network is safe," Shadel said. "So you should just think they are not. Any shared Internet access, free or paid, carries the same level of risk.It is safe only when you or someone you trust directly controls it."Shadel sometimes checks email through public Wi-Fi. But he never does any banking that way. In an unfamiliar place, he uses a Virtual Private Network (VPN). “This service creates a passage between your device and a safe place on the Internet," he said.Shadel uses public Wi-Fi to ().

I Use Every Second Before I Go to Work① I wake up at 6 a.m. every day. The first thing I do when I wake up is grab my smartphone and take it to the bathroom with me, where I start my day by consuming quite a lot of information. I go to some websites, but the main site that I focus on during this time is Nuzzel, a collector of headlines and links. I recommend everyone look into it if they feel they don't have time to properly focus on every website individually.②After visiting those sites, I head to Twitter, my No.1 outlet for communication with the public. Twitter is becoming a listening platform. There is such a volume of information on the platform that you need pay attention to. So I spend a great amount of my morning responding to people and starting conversations.③After all this comes my workout (锻炼) with my trainer. I usually work out for about 45 minutes. The specific workout routine varies depending on the day of the week, what I ate,and how much I've been traveling.④After the workout, I head back home to get my children ready for school. I say bye to them and give them each a kiss before they leave. Then, I'm off to my office, often before 9 a.m.⑤In the car to my office, I call my mom, dad or sister. I talk to them just to learn what they're up to. I really value those small moments. By the time I step into my office, so much is going through my head. My day starts the minute I open my eyes.选项A.I do some morning exercise.B.I phone my parents or sister.C.I prepare my kids for school.D.I communicate with others online.E.I help my kids with their homework.F.I visit websites to get information.Task 116.Paragraph ①:17.Paragraph ②:18.Paragraph ③:19.Paragraph ④:20.Paragraph ⑤:

I Use Every Second Before I Go to Work① I wake up at 6 a.m. every day. The first thing I do when I wake up is grab my smartphone and take it to the bathroom with me, where I start my day by consuming quite a lot of information. I go to some websites, but the main site that I focus on during this time is Nuzzel, a collector of headlines and links. I recommend everyone look into it if they feel they don't have time to properly focus on every website individually.②After visiting those sites, I head to Twitter, my No.1 outlet for communication with the public. Twitter is becoming a listening platform. There is such a volume of information on the platform that you need pay attention to. So I spend a great amount of my morning responding to people and starting conversations.③After all this comes my workout (锻炼) with my trainer. I usually work out for about 45 minutes. The specific workout routine varies depending on the day of the week, what I ate,and how much I've been traveling.④After the workout, I head back home to get my children ready for school. I say bye to them and give them each a kiss before they leave. Then, I'm off to my office, often before 9 a.m.⑤In the car to my office, I call my mom, dad or sister. I talk to them just to learn what they're up to. I really value those small moments. By the time I step into my office, so much is going through my head. My day starts the minute I open my eyes.选项A.to listen to othersB.step into my officeC.kiss them goodbyeD.affect my workout routineE.to learn how they are doingF.to surf the Internet efficientlyTask 221.Nuzzel helps me ().22.On Twitter I am able ().23.There are several factors that ().24.Before my kids go to school, I ().25.I call my parents ().

Banning Mobile Phones at SchoolIt is a question that keeps some parents awake at night. Should children be allowed to take mobile phones to school? (26) For parents who want their children to do well at school, it is no.Banning mobile phones at school is effective. According to a UK study, after schools banned mobile phones, the test scores of students improved by 6.4%. The findings will influence the debate about children and mobile phones. In the UK, more than 90% of teenagers own a mobile phone; in the US, 75% have one. The popular mobile phone is a problem in the eye of teachers. (27) In a 2001 survey, no school banned mobiles. By 2007, this had risen to 50%. By 2012, 98% of schools had taken action. Some did not allow phones. The others required them to be handed in at the beginning of the day.(28) New York City has lifted a 10-year ban on phones at school. It says that lifting the ban will promote equality. "This view is wrong," the researchers of the UK study write."We found that the ban led to improvements in test scores among students. Low-achieving students gained the most. (29) Allowing phones into schools will harm the lowest-achieving students the most."The UK study was carried out at Birmingham, London, Leicester and Manchester schools before and after bans were introduced. “Technology is commonly viewed as increasing efficiency," the researchers write. "Modern technology is used in the classroom to improve student performance. (30) Some students will pay no attention to their class."A.They are worried about the trend.B.The mobile phone is a good example.C.However, there are potential problems.D.Now researchers say that they have an answer.E.Therefore, lifting the ban may in fact lead to the opposite.F.However, some schools are starting to allow limited use of mobile phones.