某年，中国发生重大事件，引起苏联关切；《消息报》指出该事件将打击中国反日力量的团结；《真理报》更认为该事件将造成中国分裂，使日本进一步侵略中国。此一重大事件是（   ）

    “What does 'doing the right thing' mean to you”? One Friday, my teacher asked our class to think about the question. We would hand in an article on it by Monday, and be prepared to do the things we will1.

    The whole weekend, I was trying to think about something that would2my teacher and be easy to follow. I talked to my parents, called my grandmother and asked my neighbor. Everyone had good3 but I didn't think I could achieve them.

    On Sunday afternoon, my parents said they were going to my Aunt Mary's house. That usually4that I would have to play with my four-year-old cousin Andrea5we visited. I showed her a cartoon, and then I sat down and started to write my article.

    Soon I felt two 6 on me. It was Andrea. “What are you doing?” she asked. “I have to write an article about what 'doing the right thing' means to me.” I answered. Andrea laughed. “That's easy,” she said. “Doing the right thing means being7 to your family and friends. Never lie. Eat lots of fruit and vegetables. Take a bath when you're dirty.”

    I looked at my little cousin with great 8.Then I jumped up and gave her the biggest hug. Not only had Andrea answered a very difficult question for me, but I could9follow them. All I had to do was to be nice, not to lie, to keep myself clean and healthy. So when I wrote my article, I10the story about Andrea and how she had answered my question.

    Two weeks later, I received my article with an A+ and a little note written by my teacher: “Always do the right thing and give Andrea an A+, too!”

小胡同学在水槽中洗碗，一个大的瓷碗正漂浮在水槽中。小胡用水槽中的水把碗装满，碗就会沉入水槽底部，此时碗所受到的浮力比漂浮时碗所受到的浮力____ （选填“大”、“小”、“不变”），水槽中的水面将会____ （选填“上升”、“下降”、“不变”）。

第一节  语篇翻译阅读下面的短文，将划线部分译成英文或中文。

    What are magic words? Words like 'thank you', 'please' and 'sorry' can work wonders in our daily life. These polite expressions are used every day in American – among strangers, between friends or with family. 1. People with good manners always communicate with others well by using these magic words.

    What should you do when you receive a gift for your birthday? 2. 你最好坐下来写一封感谢信。3. The words 'thank you' are very important and used very often. We say them when someone hands us a letter, passes us a book, offers us a drink, or lends us an umbrella.

    'Please' is another important word, but many people forget to use it. It is not polite to ask someone for help without saying 'please'. 4. We are supposed to use it when we ask for something, too. It may be a book, a pen, or more milk. It may be in the classroom, at home, or at the bus stop. We can use 'please' to make a request（请求）pleasant.

    5. 我们也应该学会说‘对不起’。If we have hurt someone's feeling, we will have to say 'sorry'. When we have told a lie and regret it, the same word should be used. Sometimes we have forgotten something or broken a promise, so we need to explain with the word as a beginning. 'sorry' is such a word that can make people forget wrongs.

    'Thank you! Please! Sorry!’ – these words are simple but useful. Man said them long ago. We use them now. So will our kids.