Our family went to the Yellow Stone National Park last summer vacation. Our son, Tom, wanted to see bears there. And what an experience(经历)it was!

When we got there, we put up our tent(帐篷) and went to explore(探险). As we returned, we heard our daughter Susie cry out. And then we saw a bear go into our camp.

    Tom wanted his father to chase(追赶)him away. His father said, “No. It's dangerous to chase a bear. And don't let him chase you. ”Susie said, “What shall we do? Maybe we should climb a tree. ”Tom said, “No. We have to get him out of there. He might go to sleep in our tent. ”“Maybe we could make him leave if we put some honey outside for him to eat. ”Susie suggested. Then I said, “How are you going to get the honey? It's in the tent. ”We watched the bear go into the tent and heard him upset(翻倒; 弄翻)everything inside. “It's foolish for us to try to chase him away. ”said my husband, “Leave him alone and wait for him to come out. ”We waited, but the bear stayed inside. We had to sleep in the car that night.

    Mark Twain was an American writer. One day he went to a city by train. He wanted to see one of his friends there. He was a very busy man, so he usually forgot something.

    When he was on the train, the conductor asked him for his ticket. Mark Twain looked for the ticket here and there, but he couldn't find it. The conductor knew Mark Twain. She said. “Show me your ticket on your way back. And if you can't find it, it doesn't matter.”

     “Oh, thank you!” said Mark Twain. “But I must find the ticket. If I can't find it, how can I know where I'm going?”

根据短文内容，判断正误

    It was a rainy night in New Orleans, US. At a bus station, I watched a young girl cry as her baggage(行李) was taken down. It seemed she'd lost her ticket. She begged the bus driver not to leave her behind.

    “Losing your ticket is like losing money,” the bus driver said, and left her in the rain.

    But then an old man stood up and blocked the driver's way. “How can you leave that girl out there? You know she had a ticket. You can't just leave her here. You can't leave her in a city where she doesn't have a friend. You will meet your schedule(日程安排), but she might meet her end.”

    The driver showed no sign that he'd heard or even cared about the young girl's problem, or how her travels went.

    So the old gentleman said: “I'll pay for her ticket. I'll give her a little money to help her on her way.”

    He went and bought a ticket for the girl. “How can I repay the kindness you've shown tonight?” she asked. “We're strangers who won't meet again. A mere ‘thank you' doesn't seem right.”

    The old man said: “What goes around comes around. I've learned this with time. What you give, you always get back. Always be helpful to others and give what you can spare(分让).”

    Years ago a heavy rain hit Chongqing and made the Yangtze River rise.

    When the rain stopped, people found that a dog, later named Huahua, swam across the river to an island(小岛)twice a day for two weeks. Why? Because Huahua's four children were there. The mother dog swam there every day to feed her babies. This story touched many people

    Not only humans but animals are responsible. Animals know love as we humans do, and Huahua is only one of them. British scientist Jane Goodall spent 14 years living with chimpanzees(黑猩猩) in Africa. She found that chimpanzees cared for each other when others got hurt or lost parents.

    Two birds in Chengdu showed their parental love. Their baby was hurt and fell on the street in the centre of the city. Cars were driving past but the brave parents flew down to the road and took the little bird away with their claws(爪子).

    Animals not only love their own children, but also care for other animal babies. A chimpanzee named Anjana in an American animal research centre takes care of a baby lion. She feeds the lion carefully every day. "They are just like mother and son, "said a worker at the centre.