某射击队要从四名运动员中选拔一名运动员参加比赛，选拔赛中每名队员的平均成绩 与方差s²如右表所示，如果要选择一个成绩高且发挥稳定的人参赛，则这个人应是 ▲  。

如图17是探究平面镜成像特点的实验装置，a为玻璃板，b和c是两支完全相同的蜡烛．

（1）为了保证实验效果应选择较 ▲ （填薄或厚）的玻璃板．
（2）实验时玻璃板a应与水平桌面    ▲  放置．
（3）沿水平桌面移动蜡烛c前，应先将蜡烛 ▲    点燃．
（4）该实验最好在 ▲   （填较暗或较亮）的环境中进行．
（5）如果在蜡烛像的位置放一个光屏，光屏上_▲____承接到像（选项“会”或“不会”），这说明平面镜所成的像是__▲____像（选填“虚”或“实”）．

左栏是同学们在学习英语时常遇到的5个问题。右栏是与其相对应的解决办法。请为每个问题选择一个最合适的办法。

71. Read very slowly especially when the article is very long and with many new words. 72. Be afraid to speak in class though know how to answer the questions. 73. Always write Chinlish(中文式英语) but not real English. Can’t use the right English words or use big words that is not necessary at all. 74. Often make mistakes in grammar. It’s hard to remember the grammar notes. 75. Have few chances to practice speaking skills.    Nobody wants to speak in English after class.

A. Find a pen pal. You can make pen pals who are from English-speaking countries, so you may write letters in English often. Maybe your pen pals can help you improve your English too. B. Try to be more outgoing. Don’t be afraid in English learning. Everybody makes mistakes. It’s not a big deal to make mistakes in front of your classmates who may do the same thing. C. Take notes. It’s very important to have a good habit in class, that is, taking a lot of grammar notes even though the teacher doesn’t write them down on the blackboard. Try to understand the grammar notes but not just copy them. D. Join an English Corner. You can find one in your school or city. It’s a good chance for the English lovers to practice their speaking skills and share the feelings as well. E. Have some good reading habits. First, you have to find out why you can’t read fast like others. Do you always read with your fingers follow the words or lips moving? Then you have to read in a right way that is the same as you are reading Chinese.

71．________         72．________         73．________       74．________       75．________

 

根据短文内容，从A、B、C、D四个选项中选择一个最佳答案。

People all over the world celebrate（庆祝） the new year. However, not all countries celebrate in the same way, and in some countries, the new year doesn’t begin on the      date every year.

In many countries, the new year begins on 1st January, but people start celebrating on 31st December, New Year’s Eve. In New York many people go to celebrate in Times Square.      they’re waiting for the New Year, they listen to music, sing traditional songs and have fun. Just before 12 o’clock, everyone       down from 10: 10, 9, 8… As soon as it’s 12 o’clock, everyone shouts very       , “Happy New Year!”

New Year’s Day is often a family day. Some families get together for a special meal. When the weather is fine, many families go out for a       .

On New Year’s Day, many people make resolutions（决心） for the new year. They        a list of things, such as “I will help out more with housework. I will work       at school than others.” or “I won’t spend so much time playing video games.” When they have made       list, they read it to their family or friends and promise （承诺）to        their resolutions.

So it doesn’t matter how they celebrate,        people in countries all over the world, it’s a time to say goodbye to the old year, and to welcome the new.

1.A. familiar       B. same             C. important         D. normal

2.A. If            B. Even though       C. While            D. Before

3.A. comes        B. turn              C. looks            D. counts

4.A. loudly        B. quietly            C. sadly            D. safely

5.A. walk          B. secret              C. job             D. treatment

6.A. put on         B. write down         C. take away        D. look after

7.A. quickly       B. hard               C. harder           D. hardly

8.A. its            B. his                 C. her             D. their

9.A. achieve       B. make               C. do              D. give

10.A. by          B. for                 C. with             D. from