根据语境，用方框中所给短语的适当形式填空。（每个短语仅使用一次）

    Eco-tourism involves people travelling to beautiful but environmental sensitive place. Such trips are usually carried out with a(n) {#blank#}1{#/blank#} guide. Over recent years  this type of travel has been steadily gaining {#blank#}2{#/blank#} as more people search for new travel experiences.

    It is obvious that eco-tourism is beneficial in many aspects. First, all the money spent by the tourists is used to {#blank#}3{#/blank#} the important environmental spots they visit. Second, it helps visitors to better understand the environment, which is sure to {#blank#}4{#/blank#} their knowledge of the world. Furthermore, this style of travel is also more {#blank#}5{#/blank#} of the local culture.

    Compared to normal tourists, eco-tourist use energy more {#blank#}6{#/blank#}, save water and produce less rubbish by finding ways to recycle it. These behaviors have a(n) {#blank#}7{#/blank#} and lasting effect on the local environment.

    Two things are needed to make eco-tourism a success. First, it should be done in small groups. And second, because it requires {#blank#}8{#/blank#} effort, both eco-tourists and locals must be sincere in their devotion to improving the environment.

    Green travel provides local people with jobs in parks, hotels and shops. One great achievement of eco-tourism has been the {#blank#}9{#/blank#} of illegal hunting. Former hunters can now work as guides to help keep the animals safe in their natural surroundings.

Peru is one country using eco-tourism to promote respect for the environment. It's not able to take better care of its rainforests because of {#blank#}10{#/blank#} on more sustainable travel.

    In addition to this, local people's living-standards have improved. Many others are now following Peru's example and using eco-tourism to preserve their environment for the future generations.

    They're still kids, and although there's a lot that the experts don't yet know about them, one thing they do agree on is that what the kids use and expect from their world has changed rapidly. And it's all because of technology.

    To the psychologists, sociologists, and media experts who study them, their digital devices set this new group {#blank#}1{#/blank#}, even from their Millennial (千禧年的) elders, who are quite familiar with technology. They want to be constantly connected and available in a way even their older brothers and sisters don't quite get. These differences may seem slight, but they{#blank#}2{#/blank#} the appearance of a new generation.

    The {#blank#}3{#/blank#} between Millennialelders and this younger group was so evident to psychologist Larry Rosen that he has {#blank#}4{#/blank#} the birth of a new generation in a new book, Rewired: Understanding the ingeneration and the Way They Learn, out next month. Rosen says the technically {#blank#}5{#/blank#} life experience of those born since the early 1990s is so different from the Millennial elders he wrote about in his 2007 book, Me, MySpace and I: Parenting the Net Generation, that they distinguishthemselves as a new generation, which he hasgiven them the nickname of "ingeneration".

    Rosen says portability is the key. They are{#blank#}6{#/blank#}from their wireless devices which allow them to text as well as talk, so they can be constantly connected—even in class, where cell phones are {#blank#}7{#/blank#} banned.

    Many researchers are trying to determine whether technology somehow causes the brains of young people to be wired differently. "They should be distracted and should perform more poorly than they do," Rosen says. "But findings show teens {#blank#}8{#/blank#} distractions much better than we would predict by their age and their brain development."

    Because these kids are more devoted to technology at younger ages, Rosen says, the educational system has to change {#blank#}9{#/blank#} .

    "The growth on the use of technology with children is very rapid, and we run the risk of being out of step with this generation as far as how they learn and how they think. We have to give them options because they want their world {#blank#}10{#/blank#} ," Rosen says.