1．　　I was in Grade 5 and about to take a science test. Simple science was easy for me at first and I always did well on tests. When it came to fifth-grade science, (1)      , I have great difficulty with it. I failed (2)       it even though I tried my best. I became (3)       worried before the test.
　　My parents had always been so proud of my grade, and I didn't want to let them down. So just before the test I had written (4)       notes from the textbook on my desk in pencil. The writing was so light that it could hardly (5)      . I sat nervously when the teacher started to hand out the papers. I didn't want to get caught, but I didn't want to end up with a low mark, (6)      .
　　While the teacher (7)       my row, suddenly the fire alarm went off. It was (8)       unscheduled fire drill (消防演习). We all rushed out of the door. Then we kept standing together (9)       we could go back into the building.
　　As I stood outside (10)       the hot sunshine, I realized I was such a fool. My parents would still love me even I got a low mark. And they cared more about (11)       I was honest or not. As soon as we came into the classroom, I walked to my desk and cleaned the notes away. I had been given (12)       chance, and I wasn't going to waste it. I took the test, did my best and felt (13)      , I don't remember my score, but what happened on that day (14)       in my heart and mind ever since.
　　Sometimes life is full of second chances. Every day when you wake up, there is second chance all life. So treasure it (15)      !

2．　　I usually find a seat and start reading or texting my friends. Like everyone else, I try not to look at or talk to any people on the train. Then, twenty minutes later, I (1)      . To tell the truth, my home journey is (2)       special.
　　But last Tuesday was quite different. I was happily looking out of the window when the train suddenly (3)      . After five minutes, I noticed people starting to get a bit upset. Fifteen minutes later, people started getting more upset. Then the (4)       came, "Dear passengers, we are sorry we have to wait for two more hours. A train has broken down in front of us."
　　There was a loud sigh throughout the carriage, but soon something (5)       happened:all strangers started talking to each other. At first, everyone just complained about the trains. Then people started talking about real things. (6)      , I started chatting to a couple of young tourists about work, and I even talked to a businessman later. After that I decided to walk down the train, I met a woman who had been a student learning medical care at my school before.
　　A young woman took her guitar and soon the crowd were (7)       along. When enjoying the music, we heard a sick boy crying for help, and the woman from my school jumped into action. We found she was a (8)       and when coming back, she was welcomed as a hero.
　　Then, after two hours, we started moving again. "Hooray!.." Everyone (9)      , laughed and some even hugged.
　　I took the train again on Wednesday, but none of my new "friends" were there. Although people were polite, they weren't nearly as (10)       as the people the day before. I'll never forget the special experience that day.

4．　　Food, and the way we eat it, is always changing. As society develops, we learn new ways of growing, processing and cooking food. What we ate 200 years ago was very different from what we eat today. Also, when people move to foreign countries, they take their knowledge of cooking with them. And food must fit modern lifestyles and local tastes, too. One food that has done this successfully is pizza.
　　The pizza we recognize today first appeared in Italy in 1889. A famous baker from Naples made a pizza for the Italian royal (皇室的) family. He was very worried they wouldn't like it, but they did. Queen Margherita loved the dish so much, and the baker named it after her. Since then, this simple meal of bread, cheese and tomato has begun its journey in the world, and it has adapted (适应) to local cultures. Pizza began its tour in the 1890s, when many Indians moved to New York in search of a better life. There they continued to make pizzas, and the first pizzeria opened in 1905.
　　At first it was only popular with Indians, but by the late 1940s, Americans discovered a taste for it. Today they spend ＄37 billion a year on pizzas. That's more than ＄100 per American.
　　Pizza continued its tours all over the world, adapting all the time. In Sweden, it is usual to have bananas on pizzas. In Belgium, people eat chocolate pizzas with marshmallows. As a nation of seafood lovers, Japanese love adding octopus and squid, as well as roasted seaweed on the pizzas. Australians sometimes choose kangaroo or crocodile on their pizza.
　　The popularity of pizza is also related to our changing lifestyles. In today's super﹣fast society, people usually don't have the time or energy to cook. So, what they like ordering to take out is pizza. Sometimes you don't even have to pick it up, it's delivered to your home. If you don't even have time to sit down, buy a single slice and eat it standing up.
　　Pizza has come a long way. From its beginnings in an Italian city, it has grown to one of the world's favorite foods.

5．　　Have you ever played with K'nex, Lego, or Mechana?Anne loved playing with toys to build things. She was interested in trying to find out how different pieces could fit together. She made up a system that turned on the light switch, like a Rube Goldberg machine!
　　Although she loved trying to do new things, this early science exploration wasn't always easy for Anne. She remembers getting upset when she couldn't understand how to get a Lego Robot to do what she wanted. Her dad told her, "Getting upset with a lack of progress is common. When that happens, just take a break and then come back to it when it feels fun again!"
　　When Anne went to middle school, she was required to do a project for the science fair. Her first project was wetting different kinds of wood in water completely and then watching the amount of weight they could hold before breaking. By following the steps of the scientific method and then creating a good presentation, she received plenty of praises at the science fair. She says, "Even though I didn't win, that helped prove that I was possibly good at science."
　　"So why do I go into science professionally?" Anne says, "It was the most interesting thing I'd ever done. I have never run out of interesting things to learn about and I really like learning things. There are always unanswered questions, and they are the kind of questions that I find interesting!Even if some people already know the answers and you could look them up online, learning the process (过程) of finding answers on your own is more important than finding the answers."

6．　　Would it surprise you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation—their young trees?
　　Professor Simard, forest scientist from the University of British Columbia, explains how trees are much more complex (复杂) than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Simard and her team have made a new discovery and showed just how wrong he was. In fact, the opposite is true: trees survive through their group work and support, passing necessary nutrition (营养) like nitrogen and carbon to its members.
　　Nitrogen and carbon are shared through miles of underground fungi (真菌) networks. This makes sure that all trees in the forest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it influences all.
　　Simard talks about "mother trees". These are usually the largest and oldest plants on which all other trees depend. These "mother trees" are connected to all the other trees in the forest by this network of fungi, and may manage the nutrition of the whole trees and plants in the forest. She explains how dying trees pass on the wealth to the next generation, carrying important nutrition to young trees so they may continue to grow. When humans cut down "mother trees" without paying attention to these highly complex networks on which they fed, we are reducing the chances to save the whole forest.
　　"We didn't take any notice of it," Simard says sadly. "Mother trees move nutrition into the young tees before dying, but we never give them a chance." If we could put across the message to the forestry industry, we could make a huge difference towards our environmental protection for the future.

7．　　I had too many possessions. (1)      . I had shelves with dirty books I had never read and CDs I didn't listen to. My drawers were filled with clothes I never wore. I got upset that I never had any space in my bedroom. Then I read about minimalism (极简主义). Minimalism suggests that you only keep the most necessary and important objects and get rid of (处理掉) everything else. (2)      .
　　Then I started clearing out a lot of belongings I didn't use. I collected bags of clothes to give to charity. I sold some of the CDs and books online. Although I knew that I would never need these objects again, I still found it very difficult to get rid of them. (3)      . I said to myself "I might need that in the future!" or "Won't I be sad if I lose that?" But the thing was, I knew I couldn't keep all of them. Finally, I managed to get rid of something unnecessary.
　　(4)      . An organized bedroom also helps me have a clear mind!The main idea behind minimalism is to cut down what you own and really value everything you have. It's not easy to be a minimalist. Of course, I'm not a perfect one—I've only just started. (5)      .

A. My brain tried to stop me from letting them go.
B. After reading about minimalism, I was encouraged to solve my problem.
C. My bedroom is usually messy.
D. Anyway, a good beginning is half done.
E. After getting lots of objects out of my room, I became pleased to see the tidy room.

8．　　Thousands of years ago, people had to hunt for food. They lived in caves and needed fire to keep w(1)      . Some of them drew pictures on the walls of their caves.
　　Actually we don't know why they drew the pictures. Maybe they drew the pictures to bring good l(2)      to get more food when hunting. Or maybe the spears (长矛) in the pictures mean they were teaching other people to hunt.
　　For paint, they m(3)      animal fat with some different things such as dirt or berries, a kind of fruit. Some of the drawings are colorful.
　　These people drew what they saw a(4)       them mostly animals such as buffaloes, deer, horses, birds and fish. They drew people, too, but not very o(5)      .

14．学校开展"小手拉大手, 科技进生活"的交流活动, 你结合Grandpa Green的需求, 帮他一起在网上购买了一款智能手表, 体验网上购物的便利．请你根据以下要点, 用日记的方式写下这个体验和感受．

注意:
1. 词数80﹣120个左右(文章开头、结尾已给出, 不计入词数, 请根据要点提示适当发挥)．
2. 不得透露学校、姓名等任何个人信息, 否则不予评分．
Friday Sunny
　　This afternoon I taught Grandpa Green __________________________________________________________________________________________________________________________________________________________________________________________________________________________________