孔子是儒家思想的创始人，其地位随着时代的发展不断变化。 春秋时期，孔子周游列国十

掷一个骰子，观察向上的一面的点数，则点数大于2且小于6的事件的概率为______．

通过对美国独立战争的研究，你认为美国胜利的原因有

①战争的正义性 ②北美军民英勇作战  ③华盛顿等人的卓越军事指挥才能  ④法国等国家的援助

A．①②③④

B．①②③

C．①②④

D．②③④

正确的操作能保证实验顺利进行。请填写下列有关实验操作中的空格：

（1）用酒精灯给物质加热时，要用酒精灯火焰的_______________；

（2）点燃可燃性气体时，都要先______________________，再点燃；

（3）做细铁丝在氧气中燃烧的实验时，集气瓶底应预先________________________；

（4）用量筒量取液体度数时，视线与液体凹液面的最低处的位置关系是___________（填写“俯视”、“仰视”或“保持水平”，下同）。如果采取_______位置关系，则量取的液体体积大于实际值。

（5）实验室中制取氧气并用排水法收集，实验结束时，要先                  ，然后               。

将一张报纸一般压在厚玻璃板上，一般露在厚玻璃板外面，观察这两半报纸上的文字看起来有什么不同，为什么？

Teacher’s Day around the world is not celebrated on the same day. In some countries, Teacher’s Day is celebrated on working days. However, in other countries, it is celebrated on holidays. Here we are giving you a list of countries that celebrate Teacher’s Day on holidays.

China

Teacher’s Day was proposed (提议) at National Central University in 1931. It was adopted (采纳) by the central government of Republic of China in 1932. In 1939, the day was set on August 27, Confucius’s birthday. The government of the People’s Republic of China called it off in 1951. It was reestablished in 1985, and the day was changed to September 10. Now more and more people are trying to celebrate Teacher’s Day back to Confucius’s birthday.

India

In India, Teacher’s Day is celebrated on September 5, in honor of Dr Sarvepalli Radhakrishnan, the second President of India，because his birthday was September 5.

Russia

In Russia, Teacher’s Day is on October 5. Before 1994, this day was set on the first Sunday of September.

The USA

In the United States, Teacher’s Day is a holiday on the Tuesday of the first full week of May.

Thailand

January 16 was adopted as Teacher’s Day in Thailand by a resolution (决议) of the government on November 21, 1956. The first Teacher’s Day was celebrated in 1957.

Iran

In Iran, Teacher’s Day is celebrated on May 2 every year. It is in honor of the famous Iranian professor Ayatollah Morteza Motahhari who died on May 2, 1980.

Although different countries celebrate Teacher’s Day on different days, the activities people take to celebrate it just stay the same.

小题1:The best title for the passage is ____.

A．Teacher’s Day around the world

B．The history of Teacher’s Day

C．Activities on Teacher’s Day

D．How to celebrate Teacher’s Day小题2:In which year was Teacher’s Day changed from August 27 to September 10 in China?

A．1931.

B．1939.

C．1951.

D．1985.小题3:In which country is Teacher’s Day celebrated in honor of its leader?

A．Iran.

B．India.

C．Russia.

D．Thailand.小题4:What will probably be discussed next?

A．How Teacher’s Day became popular in the world.

B．Which country is the first to celebrate Teacher’s Day.

C．What activities people take to celebrate Teacher’s Day.

D．Which country has the longest vacation for Teacher’s Day.