问题 实验题

一位同学在做“研究冰的熔化规律”实验时,记录的冰在加热过程中其温度随时间变化的一组数据。由数据可知:

(1)冰在熔化过程中温度_______(填“升高”、“不变”或“降低”);

(2)冰属于_______(填“晶体”或“非晶体”);

(3)冰在熔化过程中要_______(填“吸”或“放”)热;加热到8min时,冰处于_______态。

(4)画出温度随时间变化的图线。

答案

(1)不变(2)晶体(3)吸;固液混合(4)图“略”

阅读理解

阅读理解。

     In the US, the most popular way to welcome the new year is with a big party. Some parties are at private

homes. But in recent years, it has become more and more common for Americans to go to a hotel or

eating-place on the night of December 31st. There, they can eat a big dinner, drink champagne, and dance to

orchestra music.    

     Most New Year's parties are usually noisy. People shout and sing. And often, guests blow on small

noisemakers when the new year arrives at midnight. This tradition of noise making is believed to start centuries

ago. People thought that loud sounds would drive away the bad spirits of the old year.

    The biggest, noisiest New Year's party in the US takes place in Times Square in New York. Thousands of

people gather (聚集) there. Some of them ring bells and set fireworks. Others blow whistles of car horns (喇叭). And at twelve o'clock, they begin to cheer as an electric sign in the shape of a red apple lights up on top

of a tall building.

     The Times Square celebration includes another well-known American tradition. Since 1929, the band of

musician Guy Lombardo has given a concert on New Year's Eve. Guy Lombardo died in 1977. But, Bill

Lombardo, has kept the tradition alive with a band concert at a New York city hotel. When the crowds in

Times Square start cheering the arrival of the new year, television cameras show the band playing the song

Auld Lang Syne.

1. The most usual way to welcome the new year in the US is _________.

A. to go shopping

B. to meet friends

C. to travel abroad

D. to hold a big party

2. The biggest New Year's party in the US is _________.

A. in Central Park

B. in Hollywood

C. in Times Square

D. in Disneyland

3. In the past, some American people made big noise when the new year arrived _________.

A. to express their friendship

B. to drive away the bad spirits

C. to make others more excited

D. to give best wishes to each other

4. In 1929 a concert on New Year's Eve was given by _________.

A. the band of Guy Lombardo

B. the band of Bill Lombardo

C. the band of Johann Strauss

D. the band of Elvis Aaron Presley

填空题