阅读文章，选择正确答案。 Don't worry if you have a problem! This is easy to say if you don't have one yourself, I know. But the only people who don't have troubles are gathered in little neighborhoods. We call them cemeteries (坟墓). If you're breathing, you have difficulties. That's how life is. But believe it or not, most of your problems may actually be good for you! Let me explain. Maybe you know about the Great Barrier Reef (大堡礁), running some 1800 miles from New Guinea (新几内亚) to Australia. Tour guides often take visitors to see the reef. On one tour, the guide was asked an interesting question. 'I notice that the lagoon (泻湖) side of the reef looks pale (苍白) and lifeless, while the ocean side is lively and colorful. Why is this?' The guide answered:'The coral (珊瑚) around the lagoon side is in still water. With no challenge to its survival (生存), it dies early. The coral on the ocean side is always being tested by wind, waves and storms. It has to fight for its survival every day. As it is challenged and tested, it changes and grows healthy, it grows strong.' He added, 'That's the way it is with every living thing.' That's how it is with people. Challenged and tested, we come alive! Like coral by the sea, we grow. Physical problems make for a stronger body. Stress makes for a stronger mind. So, you have problems-no problem! Just tell yourself,'There I grow again!' 1. From the beginning of the passage we know _______. [     ] A. we needn't worry about our problem B. problems follow us for ever C. it's natural to face all kinds of problems D. above the all 2. Who has no problems according to the passage? [     ] A. The persons who are very famous B. The persons who are living in the cemeteries. C. The persons who have been born D. The persons who have much money. 3. In the writer's opinion, ________. [     ] A. problems bring us much trouble B. we should try to stay away from any trouble C. problems have two sides, good or bad. D. the fewer things we do, the less trouble we'll meet 4. The reason why lagoon side of the reef has no life is _______. [     ] A. it hasn't got any sunlight B. it never faces any challenge and tests C. it has less energy than others D. it has no work to do every day 5. After reading this passage, we should ________. [     ] A. regard any problem as challenge B. learn from the lagoon side C. worry your problem D. enter into cemeteries