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Over the last 50 years, the environmental movement has become so closely associated with the colour green that it's almost impossible to see a green poster, label or recycling bag without thinking about our planet's future. But though that connection is the product of a very recent crisis, its origins go back some way. We have identified green with nature and its processes for thousands of years. Indeed, the very word "green" comes from the ancient Proto-Indo-European word ghre, meaning "grow".

The human species, which emerged in the verdant forests and savannas of Africa about 300, 000 years ago, has a special biological bond with green. Our eyes might even have evolved specifically to see the chlorophyll (叶绿素) in plants.

With the advent of agriculture, we started to use green as a symbol for nature and its processes. The ancient Egyptians, who were farming the banks of the Nile from about 8000BCE, likewise identified their crops with green. Their term for the colour was wadj, which also meant "flourish".

All over the world, people communed with nature through green materials. Jade, for instance, was used to make objects that would guarantee a successful harvest. The Maya buried their leaders with jade death masks for precisely this reason.

Western societies took longer to embrace the beauty of nature, and by extension, green. But by the second half of the Middle Ages, European writers were infusing the colour with their new-found faith in the landscape, connecting it to fertility, growth, spring, hope and joy. By the end of the 17th Century, English poets were beginning to realise, as we do today, that green spaces can be profoundly therapeutic (有疗效的).

While the future of our planet remains uncertain, many scientists are convinced that leaves, and the miraculous green pigment (色素) that lurks within them, will prove to be a decisive weapon in our battle against climate change. This is as it should be. After all, for early farmers waiting for shoots to emerge from the soil, and for modern-day activists determined to bring about a sustainable future, green was, and is, a colour of hope—the hope that, after a long, cold winter or a drought-ridden summer, the arrival of chlorophyll will promise a new beginning.

One day, Suma was walking along the beach near his home when he discovered a bottle of Coke. Suma noticed on the bottle that the price, clearly printed on the bottom, was in lire, a currency (货币) that hadn't been used in Italy since it was replaced by the euro in 2002. Could a plastic container have well survived in the Mediterranean, he wondered, for about two decades?

That led him to founding the Archeoplastica museum. It has a collection of about 500 unique pieces recovered from Italian shores and the Coke bottle is the first one of them. All collection demonstrates the unsettling life force of plastic waste in the environment. "Seeing that a product people may have used 30, 40, or 50 years ago remains still unchanged, you'll feel different. It's a great shock," Suma said to a reporter. So Suma often exhibits selected pieces from the Archeoplastica collection at local schools around his hometown of Ostuni.

"The playful side of the work allows you to arrive at the less beautiful side of things," Suma acknowledged. "Plastic is a kind of useful substance. But it's unthinkable that a water bottle, made from a material designed to last so long, can be used for just a few days—or even minutes—before becoming garbage. Clean the beaches. Clean the oceans. Recycle. But if we are still throwing out plastics, none of those are going to be long-term solutions."

Space Needle

You'll get the opportunity to climb to a few levels of the observation tower and admire the impressive views of the Mississippi River and the mountains. You'll also be able to visit the Loupe Lounge to enjoy a circling glass floor experience and seat on a Skyriser — an angled glass bench on the open-air observation deck.

Underground History Tour

This one-hour, small-group tour will take you into the fascinating world beneath Seattle's streets. You'll travel along the underground pathways constructed over a century ago and learn details about Seattle's early history from your knowledgeable guide. You'll hear stories of the Klondike Gold Rush, Skid Row and the area's original inhabitants (居民).

Seattle Harbor Cruise

On this guided cruise, you'll get a chance to admire the sweeping views of the Olympic Mountains and learn more about the history of the city. You'll head to Puget Sound to see a variety of wildlife in the inland body of water. The cruise comes with a full-service bar aboard where you can purchase cocktails, local wine, beer, snacks and much more while relaxing on the tour.

Museum of Flight

You can explore the fascinating exhibits of the Museum of Flight. Inside, you'll find 175 aircraft and spacecraft, thousands of artefacts and rare photographs. You'll learn about the history of flight from humble beginnings to the fighter planes of World War I and II. You can even step aboard a Boeing plan and view a space shuttle in the Aviation Pavilion.

Holidays are not necessarily for fun or rest. Doing something meaningful can also gain special pleasure. When the final bell rang, the students were reminded that there was no school on Monday—the Labor Day. "Enjoy your extra day off" said the teacher to her class.

An extra day off unsuited Kayla just fine. She loved breaks. She wanted to go out to play with her friends. When the school bus dropped Kayla off, she ran into the house happily.

"How was school, Kayla?" asked her mom.

"It was great, Mom. I am excited about no school on Monday."

"You just started back to school two weeks ago. Already in need of a break, huh?" asked Kayla's mom with a laugh.

Kayla slept in the next morning. Saturday was her favorite day of the week. I trained most of the day, so Kayla enjoyed playing videogames inside. On Sunday, her friends came over and they played basketball for several hours.

Then it was Labor Day, you know, the extra day off that Kayla was so looking forward to. But Kayla was awakened early that morning by her dad. He told Kayla that in honor of Labor Day, the family would be cleaning both inside and outside the house. Kayla couldn't believe it. This was a holiday. A day when she was supposed to be enjoying freshly squeezed lemonade while playing in her tree house. As Kayla wiped here yes, she began to wonder if this was just a bad dream.

"Kayla, your breakfast is ready. We have a lot of work to do today. Let's get a move on," said Kayla's mom. As she sat down at the kitchen table, Kayla asked her parents，

"Are you serious about working today? Isn't Labor Day a holiday?"

"Yes, Kayla. It is," replied her dad. "But your mom and I thought working hard today would make you appreciate why Labor Day was observed in the first place."

注意：1.所续写短文的词数应为150左右;

2.请按如下格式在答题卡的相应位置作答。

At first Kayla felt disappointed at her parents' plan for the holiday.

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But things began to change as she was doing the chores.

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1．写信目的；

2．承认错误。

注意：1．词数100左右；

2．可以适当增加细节，以使行文连贯。

Dear Mom and Dad,

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Yours,

Li Hua