16．　　That day, my class and I visited Chris Care Center in Phoenix. Arizona to comfort the old people who needed a little cheering up during the holiday season.
　　The first two (1)      there were for old persons who needed help in looking after themselves.
　　We brought them lovely flowers and beautiful songs. To our joy, they loved them.
　　(2)       we were singing on the third floor for those with Alzheimer (老年痴呆症), most of them stared off at the walls or floors. However, one lady caught my eye. She was sitting by the door, in a wheelchair, and she was (3)       — she was singing loudly. But the songs weren't we were singing — (4)      they didn't sound like that. When we sang more (5)      , she also did that.
　　Her songs were so strange, and some children began to laugh.
　　"Where are the workers? They (6)      come to stop her!" I felt worried.
　　Just then, Justin, one of my students, did something that (7)      surprised me.
　　He walked to her, (8)      his hands and held hers, then said, "Grandma, your songs are so (9)      !"
　　This elderly lady soon stopped singing. "Thanks a lot!My boy!" Then she (10)      Justin's face with the other hand. Tears began to fall down her face. No words can completely (11)      that great moment!
　　I felt so sorry then — what the old lady really needed was just (12)      ! I'd just seen the trouble. However, Justin saw the lady's (13)      .
　　Justin became my (14)      that day. He taught me, a man, about (15)      and love.

18．　　One day, when I was in Grade One, I was asked to go to the headmaster's office. As I pushed the heavy door open, I found my parents sitting in the office too. My dad walked to me, with some of my drawings in his hand. "Why do you only use a black crayon (蜡笔) when you draw?" he asked.
　　I said nothing.
　　"Show me to your desk." said Dad.
　　So we came back to my classroom. Dad pulled out my crayon box. There was only one black crayon in it. "Where are the rest of your crayons?" He was surprised.
　　"I shared all the other crayons with my friends." I said. I liked to share everything, just as my parents had taught me.
　　I looked at my dad, then the headmaster—their faces turned red.
　　Later, I learned that both Dad and the headmaster were actually embarrassed (尴尬的) at that time. The headmaster had called my parents in to discuss "my problem"—he thought I had a deep emotional (情绪的) problem after seeing all my pictures.
　　In fact, I was just too shy to ask for my "shared" crayons back.
　　That night, Dad had a talk with me. He told me about the difference between sharing and giving. He also gave me a new box of crayons. "These crayons are for you. I don't want you to share or give these crayons to anyone else." he said.

19．　　There is a lot to see under the sea, but you need to remember that light behaves differently in water from in air. The objects (物体) appear closer to you than they exactly are. You might find yourself reaching out to touch something and completely missing it. Objects under water will appear larger than they would on the surface (表面), too. Be careful not to tell any stories about the big fish that got away. That fish might not be so big after all!It's just because sometimes things can seem to be as much as about 33 percent bigger in water.
　　What's more, in deeper water, colors just don't seem as bright. In fact, it looks as if some colors are missing. Remember the color of an object is as a result of the wavelengths (波长) of light that are reflected (反射) from its surface. And light is taken in as it moves down through the water.
　　Swimmers wear wet suits to keep warm underwater. Let's take bright red, yellow, and blue wet suit as an example. These colors are hard to miss on the surface of water. Watch carefully the changes in color as you descend in the water. The red part now looks almost black because the red light wavelengths, the longest among these three colors, are missing. As you go down deeper, the same thing will happen to the yellow part. Even at a place of about 6 to 9 meters underwater, you look terrible, like a ghost!And you have to wait for your return to the surface to enjoy the bright colors again.

20．　　Everyone, rich or poor, should have at least one good friend. Your good friend may be a good (1)l      . When you want to speak, he will be there to listen. Your good friend may be a warmhearted one. When you need him, he will be at your side and look after you. Friends play an important (2)r       in our life. But how can we make a good friend and get on well with him? Here are some suggestions you can follow. First, you should (3)c      a right person to be your friend. He should be easy to get on with and truly (4)c       about you. You can also find someone who has something in (5)c      with you, so that you can spend more time together and (6)s      life with each other. Second, you should give a (7)h      to your friend when he is in trouble or in danger.
　　Friends should always help each other. Third, if you want to (8)k      friendship, you should believe in him. Trust is the most important thing in a friendship. At last, if you have (9)d      opinions with your friend, please try to stand in your friend's (10)s      and solve problems in a peaceful way.
　　A life without a friend is a life without a sun. Friends are the sunshine of our life. Let's be a good friend and never lose a good friendship.

21．假如你是李明, 即将要去参加英国"绿色之旅"(Winter Camp)活动. 请根据以下提示, 用英语写一篇在开营仪式上的自我介绍. 要求60﹣80词, 开头和结尾已给出, 不计入总词数.
要点提示:
1. 来自中国武汉, 上个月是第七届军运会(7th CISM Military World Games)的一名志愿者;
2. 经常锻炼, 身体健康, 曾在校篮球比赛中获最佳球员奖;
3. 在音乐方面有天赋, 是班上最外向的学生之一;
4. 最喜欢脱口秀节目;因为这类节目有趣, 使人得以放松
5. 中国有着丰富多彩的历史和文化, 欢迎大家来中国.
6. 适当自由发挥.
参考词汇:rich adj丰富的;volunteer n. 志愿者;be in good health 身体健康
　　Hello, everyone! I'm very glad to introduce myself. My English name is Li Ming. __________________________________________________________________________________________________________________________________________________________
　　Thanks.