The trip to that city was eye-opening for everyone, and near its end, all the young people in our group began to reflect on what it had meant. We ____  (1)  ____ the first night we had arrived. We had all gone into the markets of the city ____  (2)  ____ the young people could experience its energy. But what we actually saw simply ____  (3)  ____ us all- the run-down houses, the children in rags, the people begging for money ... Walking home, ____  (4)  ____ under a low bridge, we came across ____  (5)  ____ families of homeless people seeking a bit of dry ground to sleep on ____  (6)  ____ the night. We had to step over bodies as we found our way through the darkness.

   The poverty(贫困)was ____  (7)  ____ than anything my young companions had ever imagined. Back in the hotel, an air of sadness settled over the group. Many ____  (8)  ____ and cried. Spending time in this ____  (9)  ____ moves a person to care about humanity.

   That evening, our group spent hours talking about what we had ____  (10)  ____. Gently, I encouraged everyone to talk about the difficult ____  (11)  ____ that day's discoveries had inspired. Sitting together ____  (12)  ____ a circle as everyone had a chance to speak, we all began to realize that ____  (13)  ____ of us was alone in our struggle to cope with our reactions.

   Based on my ____  (14)  ____ in poverty-stricken areas, I suggested that ____  (15)  ____ the emotions we had were painful, they could also be important in helping us to move forward. We all ____  (16)  ____ that we had seen things that should never be allowed to happen. ____  (17)  ____, what could we do about it? Together, we began to brainstorm ways we could help to ease the ____  (18)  ____ we had seen. As I encouraged group members to focus on ____  (19)  ____ they could do, a sense of determination ____  (20)  ____ the previous sadness. Instead of despair, these young people began to feel a call to action.

      Eco-tourism involves people traveling to beautiful but environmental sensitive places. Such trips are   (1)  carried out with an experienced guide. Over recent years, this type of travel has been steadily gaining   (2)  as more people search for new travel experiences.

      Eco-tourism has many benefits. First, all the   (3)  spent by the tourists is used to   (4)  the important environmental spots they visit.  Second, it helps  (5)  to better understand the environment, thereby   (6)  their knowledge of the world. Furthermore, this style of travel is also more  (7)  of the local culture.

      Compared to  (8)  tourists, eco-tourists use energy more efficiently, save water and produce less rubbish by finding ways to   (9)  it. These behaviours have a  (10)  and lasting effect on the local environment.

      Two things are needed to make eco-tourism a/an   (11)  . First, it should be done in small groups. And second, because it requires considerable effort, both eco-tourists and locals must be   (12)  in their commitment to improving the environment.

      Green travel provides local people with jobs in parks,   (13)   and shops. One great achievement of eco-tourism has been the   (14)  of illegal hunting. Former hunters can now work as guides to help keep the animals   (15)   in their natural surroundings. Green travel also  (16)  local peopleˈs quality of life, especially childrenˈs.

      Peru is one country using eco-tourism to promote respect for the   (17)   . Itˈs now able to take better care of its rainforests because of a/an  (18)  on more sustainable(可持续的)travel.

        (19)  this, local peopleˈs living-standards have improved. Many others are now following Peruˈs   (20)  and using eco-tourism to preserve their environment for the future generations.

During a recent holiday I visited Dusseldorf, a city in the former West Germany.

The nice-day trip left a deep impression __1 _me. I arrived at Dusseldorf airport at 7 pm. It was already __2__outside.The first thing I needed to do was to find a place to __3__in. I decided to telephone the youth hotel .But to use the phone I needed some__4__ . I asked a lady for help. To my__5__she gave me three coins to use. But all the phones in the __6__needed phone cards .And phone cards could only be bought at post offices during the __7__. I was __8__I would not be able to call the hotel. An old gentleman helped me. He could not speak English __9__ understand that I needed to __10__a phone call. He showed me where the phone was and inserted（插进）__11__ phone card. I called the youth hotel and found a place to stay that night .

The __12__of the German people made me feel that I was not __13__ my hometown .Germany was not as __14__ as I expected .

Whenever I went, I asked people for __15__. It surprised me that __16__every young German could speak English fluently. Older German could not speak English very well, but they would help me __17__they could. One middle-aged man I asked for directions even __18__me to the place I was looking for .

My __19__in German totally changed my impression of Germans. Now I think the people couldn’t be more__20__.