Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Recent statistics show that 50% people have a cell phone now.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Children’s cell phones are expensive than those of their parents.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Cell phones have make it easier for people to contact with each other.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Parents don’t allow their children to use cell phones.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Cell phone numbers are difficult for children to remember.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Using cell phone too much is good for people’s brain.

Cell PhonesBelieve it or not, cell phones have been around for over a quarter of a century. The first commercial (商业的) cell phone system was developed by the Japanese in 1979. But cell phones have changed a lot since that time. The early cell phones were big and heavy but they have been developed into small and light palm-sized models. There have been huge developments in their functions, too. We have had cell forwarding, text messaging, answering services and hands-free use for years, but now there are countless new uses, such as instant access to the internet and receiving and sending photos.Cell phones have become very common in our lives; recent statistics suggest as many as one in three people on the planet now have a cell phone, and most of them say they can’t live without one. Cell phones are used in every area of our lives and have become a necessary tool, used for essential arrangements, social contact and business. They have made it easier to call for help on the highway. They have made it possible to keep in touch with people” on the move” when people are traveling.Cell phones have made communication easier and have reduced the need for family arguments. We can use cell phones to let our family know we’ll be late or if there’s a change of plan or an emergency(紧急情况)。 Cell phones have eased the worries of millions of parents when their teenagers are out late, and they can now contact their children at any time.This does not mean that cell phones are all good news. They have brought with them a number of new headaches for their owners: it costs a lot to replace stolen phones, something that is becoming a frequent occurrence, and have you ever seen such huge phone bills? More serious, however, is the potential health problem they bring: there are fears that radiation from the phones may cause brain tumor (肿瘤)。This may be a time bomb waiting to happen to younger people who have grown up with cell phones that they simply can’t live without.Younger people depend on the cell phones so much.

Our children and grandchildren may not have a chance to visit many of the most famous places around the world. War, weather, age, traffic and pollution damage these famous places. Looking after these places often costs more than one country can afford. In the early 1970s, world governments decided that if they joined together, they would be able to preserve our history. If every country paid some money, they said, it would be possible to look after important historic places. Also, if they discovered that a monument needed urgent help, they would have money for repairs. For these reasons, countries around the world united to form the World Heritage Organization in 1972. Today, the organization helps to maintain and restore the most important places from our history. However, one of the biggest problems for historic places is vandalism. People sometimes enter the sites and destroy or damage the buildings. At some sites, such as Stonehenge in England, governments have built high fences to protect the site from vandals. There are many different ideas about how to solve the problem of vandalism. Some experts say that if guards patrolled the sites, vandals would not be able to get in. Some experts say that if they fixed more television cameras, they would not need so many guards. Other experts say that the best solution is education. If people learned to respect history, they would not destroy or damage it. They would also want to spend money looking after old places. For this reason, the World Heritage Organization helps to spread information about the value of historic sites.War, weather, age, traffic made children have no chance to visit many famous places .

Our children and grandchildren may not have a chance to visit many of the most famous places around the world. War, weather, age, traffic and pollution damage these famous places. Looking after these places often costs more than one country can afford. In the early 1970s, world governments decided that if they joined together, they would be able to preserve our history. If every country paid some money, they said, it would be possible to look after important historic places. Also, if they discovered that a monument needed urgent help, they would have money for repairs. For these reasons, countries around the world united to form the World Heritage Organization in 1972. Today, the organization helps to maintain and restore the most important places from our history. However, one of the biggest problems for historic places is vandalism. People sometimes enter the sites and destroy or damage the buildings. At some sites, such as Stonehenge in England, governments have built high fences to protect the site from vandals. There are many different ideas about how to solve the problem of vandalism. Some experts say that if guards patrolled the sites, vandals would not be able to get in. Some experts say that if they fixed more television cameras, they would not need so many guards. Other experts say that the best solution is education. If people learned to respect history, they would not destroy or damage it. They would also want to spend money looking after old places. For this reason, the World Heritage Organization helps to spread information about the value of historic sites.Any country can afford to look after many famous places.

Our children and grandchildren may not have a chance to visit many of the most famous places around the world. War, weather, age, traffic and pollution damage these famous places. Looking after these places often costs more than one country can afford. In the early 1970s, world governments decided that if they joined together, they would be able to preserve our history. If every country paid some money, they said, it would be possible to look after important historic places. Also, if they discovered that a monument needed urgent help, they would have money for repairs. For these reasons, countries around the world united to form the World Heritage Organization in 1972. Today, the organization helps to maintain and restore the most important places from our history. However, one of the biggest problems for historic places is vandalism. People sometimes enter the sites and destroy or damage the buildings. At some sites, such as Stonehenge in England, governments have built high fences to protect the site from vandals. There are many different ideas about how to solve the problem of vandalism. Some experts say that if guards patrolled the sites, vandals would not be able to get in. Some experts say that if they fixed more television cameras, they would not need so many guards. Other experts say that the best solution is education. If people learned to respect history, they would not destroy or damage it. They would also want to spend money looking after old places. For this reason, the World Heritage Organization helps to spread information about the value of historic sites.World government joined together to preserve historic places in the 1970s.