I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to El Capitan, a _________ rock of 3300 feet straight up. I touched that rock and knew _________ I wanted to climb it. That has been my life’s passion (钟爱) ever since climbing the rocks and mountain s of Yosemite. I’ve long made Yosemite my _________.

About 15 years ago I started seeing a lot of _________, like toilet paper, beer cans, and empty boxes, around the area. It’s beyond me why visitors started respecting the place _________ and treated such a beautiful home-like place this way.

I tried picking up rubbish myself, but the job was too big, I would spend an hour or two on the job, only to find the area trashed all over again weeks later. Finally, I got so _________ it that I decided something had to change.

As a rock-climbing guide, I knew nothing about organizing any big event. But in 2004, together with some climbers, I set a date for a _________. On that day, more than 300 people _________. Over three days we collected about 6000 pounds of. rubbish. It was amazing how much we were able to achieve. I couldn’t believe the _________we made the park looked clean.

Each year volunteers come for the cleanup from everywhere. In 2007, 2945 people picked up 42330 pounds of rubbish and covered 132 miles of roadway.

I often hear people __________ about their surroundings (环境). If you are one of them, I would say the only way to change things is by __________ rather than complaining. We need to teach by example. You can’t blame (责备) others __________ you start with yourself.

【推荐2】How are ________ born? They experience four stages in order: egg, larva (幼虫期), pupa (蛹) and adult.

One day, a little girl found a cocoon (茧). She could ________ that a butterfly was going to be born. She decided to wait for the butterfly to come out of the cocoon. She watched it for ________, but then the butterfly stopped moving. It got stuck (卡住了). The girl wanted to help the butterfly get out. She went home and got a pair of ________.

As she cut open the cocoon, the butterfly then easily came out. However, its body was swollen (浮肿的) and its wings were very ________. The girl still thought that she helped the butterfly. She sat there for another few hours and waited for its wings to grow. However it did not happen. The butterfly was unable to ________ and for the rest of its life, it could only move around with a large body and little ________. The girl thought she was helping but ________ she was hurting it.

When the butterfly broke free of its cocoon by ________, it was time for its body to get smaller and its wings to get stronger. So it could fly soon. It’s true struggling (挣扎) will make you ________.

【推荐3】Last summer, I went to Yunnan on vacation with my family. We ________ four days there.

Our first stop was Lugu lake. I wonder why there was so beautiful a lake in the world. I enjoyed ________ there. We went boating and took quite a few photos. Then we went up to a hill. On the top of the ________, we got to see something beautiful. I felt like I was in a painting. I thought I would ________ forget the beautiful scenery there.

The next morning we went to Lijiang by bus. It was a long ________ from Lugu lake to Lijiang. We ________ in the afternoon. After a short break, we went to walk around the town and bought some gifts. Then we decided to try the famous Guoqiao Rice Noodles for dinner. They were very ________ and delicious. After dinner, we took a walk and enjoyed the old streets and buildings ________ the moon. The summer evening was cool.

Our ________ stop was the “spring city” Kunming. We visited Dianchi, watched the birds and went to the flower market. We had a really wonderful day.

The four-day trip came to a(n) ________ soon. We had to go home. Everything in Yunnan was great. It is a very beautiful and interesting place. I’m sure you’ll never regret going on a trip there.