A five-day holiday can be very exciting for anyone. But a small thing can also make you feel really bad.

    One sunny day Mr. Li wanted to go to Hangzhou for a trip. He wanted to take a train because he would like to see the villages and rivers along the way. And it was not expensive. After he arrived at the train station, he waited for（等待）a long time. He had nothing to do, so he bought a book and read it. When the train came, he got on the train and sat down. About ten minutes later, a man came up to him and said, “Excuse me, sir. This is my seat.”

  “What?” Mr. Li said, looking at his ticket（票）.

  “Are you going to Chengdu?” the man asked.

  “No, I'm going to Hangzhou,” Mr. Li answered. And then he knew he got on the train by mistake.

   Luckily, he didn't miss the right train. All in all, it was not a good start.

    He met her at a party. However, she never paid any attention to him. After the party, he invited her for coffee. In order not to be rude, she went along.

In a nice coffee shop, he was too nervous to say anything. Suddenly, he asked the writer, "Could you put some salt in my coffee?" The waiter and she looked at him in surprise. "Why salt with coffee?" she asked. "I used to live near the sea. Whenever I drink salty coffee, it reminds me of my hometown and my parents," he answered.

    She was touched. A man who is homesick(想家的) must love his home. So she talked with him a lot and slowly found she was just the man she was looking for.

    Later they married and lived happily together and every time she made coffee for him, she put in some salt. After 40 years, he passed away and left her a letter, which said, my dearest, please forgive my life-long lie. Remember the first time we met? I was so nervous that I asked for salt instead of sugar Dear, I don't exactly like salty coffee. But having you with me was my greatest happiness.

    A couple of sparrows(麻雀) lived happily in a huge tree in a jungle. The female sparrow had laid her eggs and they were expecting their babies soon.

    One day, an elephant was unable to tolerate the heat of the summer sun. He destroyed all trees, including the tree where the sparrows lived.

    The sparrows managed to escape by flying away, but they lost their babies. The eggs fell down to the ground and broke into pieces. They cried loudly and decided to kill the elephant.

    They asked their friends, a woodpecker and a fly for help. The fly took them to meet one of his friends, an old frog. The frog was wise and he came up with a good plan soon.

    The frog explained, "Fly! Your task is to buzz in the elephant's ears in order to make him sleepy. The woodpeckers task is to hurt his eyes and make him blind. In this hot summer days, he will certainly search for water. I will sit by the nearby pit(深坑) and shout at the top of my voice."

    He continued, "When the thirsty elephant hears me, he will think there is a pond or lake nearby and follow my voice. And when he does so, he will fall into the pit and die."

    The others agreed to the frog's plan. Everyone did their tasks perfectly. Finally, the elephant fell into the pit and died.

Fleming saw many soldiers die from infections (感染) in their wounds as he worked in a hospital during World War I. This made Fleming decide to find a way to help the body fight infections. 

In September 1928, Fleming left some glass dishes on a bench in his laboratory for two weeks. When he came back, he noticed something puzzling. Bacteria (细菌) were growing on all the glass dishes except one. On this dish mould (霉菌) had started to grow—the kind found on old bread. The mould seemed to be giving off something that stopped the bacteria from growing. Fleming called it "mould juice". He tried it on other bacteria, and it killed them, too. Fleming became wild with joy and named it penicillin. 

Unfortunately, Fleming's boss thought he was wasting his time and it was impossible to kill bacteria at that time. Fleming did a few more experiments with penicillin, and he also wrote about it so other scientists could learn about it. However, because no one seemed interested in his discovery, he forgot about penicillin and started to work on other things. 

In 1939, Ernest Chain, a scientist, and his boss, Howard Florey, were looking for medicines that could kill bacteria. They discovered Fleming's notes and decided to test penicillin. In 1940, they gave penicillin to some sick mice, who survived later. But those who didn't get it died. Florey declared: "It looks like a miracle!" By 1943, the final tests on humans were finished successfully and the world had its first antibiotic (抗生素) medicine.

When you look at me now, you won't believe that I once weighed over 300 pounds. Yes, I used to be a really 1 girl. I never worried about it until I had a medical examination one day. 

The doctor told me that I was having heart trouble. He said it would be 2 if I could lose some weight. Then I decided to make a 3 .

After a year and five months, I lost 104 pounds. I didn't have any expensive food, medical treatment or camp- style exercise. So what was the secret to my 4 ?

First, I looked through the Internet for some 5 on losing weight. Of course, I saw many advertisements(广告), but I bought nothing. The only thing I did was change my bad6 . I stopped having drinks with too much sugar and 7 my love for sweet cakes. Now I have got used to eating a lot of green vegetables and using vegetable oil only. I 8 eat after 6:30 p. m. because it's unhealthy to have a late dinner. Also, I 9 for 15 to 20 minutes five days a week to keep fit. 

People sometimes say, " You don't need to tell me what to do. I've known it already!" The fact is that knowing what to do and doing what you know are completely 10 . The important thing is to know what to do and then keep doing it.