2．　　Twenty years ago, I drove a taxi for a living. One night I was told to pick up a passenger at 2:30 a. m. When I arrived at the passenger's house, I walked to the door and knocked. "Just a minute," answered a weak voice. After a while, the door opened. A small woman over eighty stood before me. I took her bag to the car, and then returned to help her. She took my arm and we walked slowly towards the car. She kept thanking me for my kindness.
　　"It's nothing" I told her. "I just try to treat my passengers the way that I would want my mother to be treated." "Oh, you're such a good man," she said. She gave me an address, and then asked, "Could you drive me through the city?"
　　"It's not a short way," I answered quickly.
　　"Oh, I'm in no hurry," she said. "I'm on my way to hospice (临终安养院). I don't have any family left. The doctor says I can't live very long."
　　I quietly turned off the meter (计价器).
　　For the next two hours, we drove through the city. She showed me the building where she had once worked, the neighborhood where she had lived, a ballroom where she had gone dancing as a girl.
　　At last, she said, "I'm tired. Let's go now." Then we drove to the address she had given me.
　　"How much should I pay you?"
　　"None," I said.
　　"You have to make a living."
　　"Oh, there are other passengers," I answered.
　　Almost without thinking, I gave her a hug. "You gave an old woman a little moment of joy," she said weakly but full of happiness.

3．　　Open your app, place your order, and wait for your food to be delivered (递送) to your home — this is how many people eat in China these days. According to the latest data (数据) from the China Internet Network Information Center, 421 million Chinese people use online food delivery services. That's nearly half of the total number of Internet users in China.
　　Which group of people is ordering food online the most?Unsurprisingly, it's mainly young people. A recent report that was published (公布) by the China Hospitality Association and Meituan, a food delivery service, showed that 86. 3% of the service's users are between 20 and 34 years old. These people, who are more likely to live in small families, are the main group who develop the food delivery industry.
　　Small families depend greatly on food delivery services. Chinese families have changed in size over the past 10 years. In 2002, only 7. 7% of Chinese families were single-person families. But it increased to 15. 6% in 2017. For small families, cooking is more time-and resource-consuming (耗时耗财), so ordering food online has become more popular.
　　The improvement of China's food delivery services has also attracted (吸引) more customers. According to Meituan's report, the average time (平均时间) it takes to make a food delivery dropped from 38 minutes in 2016 to 29 minutes in 2019. Many deliveries are also offering more services, such as fruit, vegetables, medicine and flowers. As its services continue to improve, it's likely that the food delivery industry will keep growing.

4．　　Wind power is a very clean source of energy. This is how wind power works. Wind makes windmills (风车) spin. When the windmills spin, they make electricity. Then we can use the electricity.
　　A lot of people think that wind power is new, but that's not true. For thousands of years, people have used wind to sail boats and move water. We still do those things today, but these days we mostly use wind power to make electricity.
　　Wind power is a very popular source (来源) of energy. Most people think that we should use it more and more. First of all, it's clean. Windmills don't pollute the environment at all. Second, we can use wind power forever. After all, we will always have wind. Also, wind power is cheap, and it's getting even cheaper.
　　A lot of people don't understand wind power very well. They believe that there are problems with wind power, but many of those problems are not real. For example, some people say that windmills are dangerous for birds. They used to be true, but it isn't true anymore. Old windmills killed birds because they spun very fast. New windmills spin slowly, and they aren't dangerous for birds.
　　However, there are real problems with windmills. One problem is that many people think windmills are very ugly. This is a problem for people, because windmills are often in very pretty areas. Also, if there's no wind all the time, we can't use wind power . Finally, windmills are noisy.
　　Wind power is becoming more and more common. Right now, more than 80 countries use wind power. About 2. 5 percent of the world's power comes from the wind. For some counties, that number is a lot higher. Wind power gives Denmark more than 25 percent of its electricity.

5．　　Everyone wants to become perfect. Unluckily, being perfect may not happen. Here's some useful advice about how to refuse perfection (完美).
　　(1)      
　　Compared with others, you may feel that you are not perfect. End your comparison. No comparing, no pain.
　　(2)      
　　When perfection is your aim, mistakes mean failure. Learn to accept that mistakes are part of human beings. Remember nobody is perfect. You needn't take others' words seriously.
　　(3)      
　　Your fear of making mistakes may keep you from taking risks or trying new things. Don't worry. Find a true friend, a family member or a teacher and ask for help you need to really improve.
　　(4)      
　　Find someone who is not a perfectionist. Learn from his or her mistakes. Share your goals and achievements with him or her, no matter how small they are.
　　(5)      
　　Cut out the words like "never", "always" and "should" from your self-talk. Realizing this means you're well on your way to changing yourself better.
　　The more confidence you develop, the less you'll feel the need to be perfect. When you give up perfection, happiness can begin right now. And you are better really.

6．　　Mr. Jackson was our science teacher. On the first day of the class, he gave us a talk about a(n) (1)       called wampus (猫豹). He told us that the wampus lived on Earth millions of years ago during the Ice Age and died out (2)       the change of climate (气候). We all listened carefully and took notes of everything he said. Later we had a (3)      .
　　When the test paper was returned to me the next day, I was surprised and (4)      . There was a big red"X" through each of my answers. I failed. (5)       how come?Anyway on the test paper, I had written down what Mr. Jackson said in class.
　　Then I realized that (6)       one passed the exam at all. What had happened?
　　"Very simple," Mr, Jackson explained. "Though I had (7)       all that story about the wampus, there had never been any such animal. So the information in your notes was not (8)      . Do you expect to pass the test for incorrect answers?"
　　There was no need to say we were angry. What kind of test was this?What kind of (9)       was he? How could we believe he gave us so much information about an animal that had not been there (10)      ? How was it possible for us students to doubt what the teacher taught us?
　　"The zeros on your papers will be recorded in your grade books, " he said. And he did it Finally, Mr. Jackson said he hoped that we would (11)       something through this experience. Teachers and books are not always right. In fact, no one is. He told us not to let our (12)       go to sleep. Instead, we should keep thinking all the time and (13)       if we think there are mistakes in our teachers' words or in books.
　　We should develop the habit of (14)       and the ability to decide by ourselves. What a special (15)       he gave us!

7．　　Lily Bice is an American girl. When she heard families in Texas lost everything because of Hurrican (咫风) Harvey, she made (1)             decision.
　　Her parents experienced another hurricane 12 years ago, so they knew people in Texas had difficulty building their new (2)            (home) after Hurricane Harvey. They discussed (3)             to help the people and Lily heard the discussion. She wanted to play a part in helping those people. So she decided to give away some toys to a girl. "(4)             the girl has toys to play with, she will probably feel (5)             (happy) than before," Lily thought. Then she started putting her toys in a bag. All of them provided Lily (6)             a lot of fun. Lily wrote something on a piece of paper and put it into the bag: "Dear little girl, are you (7)            (excite) about getting these toys?I hope they can be (8)            (you) close friends. Have fun with them."
　　Lily's mom, Mellisa Bice, (9)             (be) proud of her daughter. She said Lily could feel what the people in Texas were experiencing although the little girl didn't experience a hurricane. "She (10)             (understand) more than a child really does. She likes making things for people to make them happy." She added.

12．The more careful you are, the f       mistakes you'll make.

18．假如你叫李华，你最近收到笔友Alex的来信，请你阅读后回复。
1. 词数80左右，开头部分已给出，不计入总词数。
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