1 . Earth Hour is organized by the World Wide Fund for Nature. It's a big event usually at the end of March every year. On this evening, people “go dark”.     1    

It's true that turning off lights for just one hour saves only a small amount of power.    2    On one level, joining in Earth Hour makes people think about the problem of climate change and what we can do in everyday life to protect nature.

But on another level, a large number of people’s acting together sends a powerful message to governments and companies.     3     They begin considering green issues when big decisions.

The logo(标识) of Earth Hour is “60+” .The number 60 is for the 60 minutes of Earth Hour.     4     In fact, people who join in Earth Hour say that taking part makes them want to do more for the environment.

    5     Musicians give concerts by playing acoustic(原声的) instruments instead of electric ones, and using candles instead of electric lights. Celebrity chefs have created special recipes for families to prepare and eat by candlelight. Tree-planting sessions, group walks and runs are also among the options.

2 . Some years ago, when Pat Thorn asked her husband Frank what he was going to do when he retired, he replied: “I'm going to volunteer with UNICEF (United Nations International Children's Emergency Fund).”

After_______, Frank was true to his word, and he and Pat toured schools and organizations around Britain as he gave talks about UNICEF. When they_______abroad, their original plans for a relaxing holiday would_______often turn into a UNICEF fact-finding trip instead.

They threw themselves into achieving important goals--- whether it was raising people's _______of issues or sourcing(采购) sewing machines to send to communities in Kenya that had _______them.

Pat and Frank were _______travelers, and when they headed to different continents, they were inspired to find out for_______how UNICEF put its child-focused plans into far-reaching _______.

“We met community leaders, and saw how UNICEF_______non-governmental schools so that children________attend them when they wanted to, which really made education more________to everyone.”

“The point is that UNICEF has this network in place, doing good work________, not just________there's an emergency.”

Pat and Frank also discovered early in their involvement that UNICEF's________programs are supported by donations, ________any funding from the UN budget.

Frank had become a promoter(促进者) for UNICEF's legacy-giving (遗产捐赠), He and Pat made the important________decision to________the charity in their own wills.

“It was a simple ________for us to put UNICEF in our wills,” says Pat. “The people running UNICEF have always been sensible and________, and that's the most important thing. My gift will join Frank's when I________this world.”