题目内容：

    I was taking in the breathtaking view from the top of Sydney Harbor Bridge when I sensed I was about to witness something even more dramatic right in front of me. Although we were all tied to lines running along the steel girders, a fellow climber called Mike had somehow managed to drop onto bended knee and turn to face his girlfriend, Wendy. I knew what was coming. “Wendy, will you marry me?” he asked. There was a quick smile and an attempted kiss and then a big beam. Mike had the answer he hoped for and all of us burst into a round of applause.

Apparently more than 2,000 couples have become engaged ( 订 婚 ) at the summit since 1998, when it became possible to climb it in organized tour groups. The bridge, perhaps the most recognized symbol of this beautiful city, opened in 1932. It's still the world's largest steel-arch bridge.

We returned to the fantastic view: the famous Sydney Opera House, ferries and sailboats making their way through the harbor, the city skyline — but I had to force myself to look down. We had climbed 1,423 steps to the top of the bridge and I didn't know whether to be delighted or scared.

Nicole Kidman has done it. So have Bruce Springsteen, Prince Harry and scores of other celebrities. But climbing to the top clearly isn't just for the rich and famous. On the contrary, Australian youngsters do it to celebrate their 12th birthdays. (You have to be at least 12 years old to do the climb.) A 100-year-old woman climbed it and told guides it was on her list of things to do before she died.

You can climb during the day, at twilight, or even after dark with headlamps. People climb in all weathers except when there's lightning in the area. In fact, over two million people have made the three-and-a-half-hour climb to the top of the famous bridge—an adventure that cannot be done anywhere else in the world on a bridge this big. That's probably why this climb has won a lot of tourism awards. Today, the climb is firmly on the "to-do" list for locals as well as tourists.

1.What can we learn on the bridge is quite rare?

A.Getting engaged on the bridge is quite rare.

B.People climb the bridge on climbers’ age.

C.There are no limitations on climbers’ age.

D.Many famous people have done the climb.

2.How did the author feel when he climbed to the top of the bridge?

A.Bored and tired B.Fearful and confused

C.Excited and nervous D.Relived and relaxed

3.What is the author’s purpose of writing the passage?

A.To introduce the popularity of the bridge.

B.To emphasize the importance of the bridge

C.To explain the functions of the bridge.

D.To describe the fantastic view from the bridge.