Fred lives near the sea, and he loves going to the beach to relax when he is free.

It was a ________ day last weekend. Fred decided to enjoy the sunshine on the beach, ________ he packed his things and went to the beach.

The beach was crowded when he got there. Fred ________ a place, there weren’t so many people and lay down. After a while, Fred ________ something in the sand. He looked ________ and found it was an empty bottle. Then, he saw a plastic bag floating (漂浮) on the water. People left rubbish all over the ________.

Fred felt sad. He looked ________ and found there were only a few dustbins on the beach. So he ________ to do something helpful. He began to collect the ________ on the beach. Then he went home and ________ some of his friends. Fred and his friends ________ two big signs to ask people not to leave rubbish here and there. Then they took the ________ to the beach and put them up. That evening, Fred wrote a letter ________ the local government, and advised ________ more dustbins on the beach.

“Signs and dustbins aren’t the most important. The most important thing is that ________ should take action to protect the environment,” said Fred.

Snowstorms (暴风雪), lack of oxygen (缺氧) and a freezing temperature of -20 ℃, for 14 days, Yue Kailang has _______ all these while climbing Mount Muztagata (慕士塔格峰) in Xinjiang. The 16-year-old from Beijing finally _______ the top of the mountain on July 29—at 7, 546 meters.

Yue was the youngest in the “Climate Action” climbing team. The project’s goal was to raise people’s awareness of global warming (全球变暖) _______ visiting snow mountains.

“I loved nature when I was a kid. I often climbed mountains in Beijing. In recent years, more and more news reports have talked about the environment being _______, and I feel quite upset about it,” said Yue.

Feeling urgent (紧迫的) to do something, Yue took part in the “Climate Action” project. “Mount Muztagata is an ideal (理想的) place to observe climate change _______ there are large areas of mountain glaciers (冰川),” said Yue. “I was shocked when I saw the snow line was rising every single day—the snow melts so fast _______ it can be seen with the naked eye! There is also a river formed by the melting ice and snow. We can hear the loud rumbling (隆隆声) of the flowing (流动的) water.”

Along the way, Yue also collected snow samples (样品), which was part of the project's tasks. The samples will be given to scientists to study how air pollution and microbes (微生物) are causing the melting.

“We say ‘saving Earth’ every day, but I think _______ real action is more important than just talking,” said Yue. “I hope my story can draw more young people’s attention to the _______ problem of global warming. What I’ve experienced has shown that global warming is really not far away.”

In today’s world, almost everyone knows air pollution and water pollution. But not all the persons know that noise is also a kind of pollution. ________, noise is harmful to human health, too.

People who work and live in ________ conditions go deaf easily. For example, many of the workers who ________ newspapers and books go deaf. Quite a few people living near ________ also have hearing loss. Recently, it is reported that many ________ in America can hear no better than 65-year-old people, because these young people ________ listen to loud pop music. Making a loud noise in public is also a kind of pollution. It not only disturbs others but also ________ great harm to people’s hearing. Cars and machines also produce too much noise. Such pollution makes people feel ________ and unpleasant, and it can even cause them to become deaf.

Nowadays many countries have made ________ to reduce or control noise. China is also trying to ________ all sorts of environmental problems, including noise pollution.