确。]

22．Which of the following is NOT true about the winners?

A．They will be honored at a special ceremony after the CSF.

B．Their entries will be exhibited and published in a book.

C．Their families will be welcome to attend the celebration.

D．They will be given the specifics of the closing ceremony.

答案　A　[细节理解题。根据第三段中的"Students who enter the Curiosity Challenge and are selected as winners will be honored at a special ceremony during the CSF on Sunday，April 21st"可知，颁奖仪式将在剑桥科技节期间举行。故A项错误。]

23．What type of writing is this text?

A．An exhibition guide.

B．An art show review.

C．An announcement.

D．An official report.

(2018·内蒙古包头包钢四中高二期末)There have been many great inventions，which have changed the way we live. The first great invention was one that is still very important today-the wheel. This made it easier to carry heavy things to travel long distances. For hundreds of years after that there were few inventions that have made as much effect as the wheel. There was little unknown land left in the world. People didn't have to explore(开发) much any more. They began to work instead to make life better.

In the second half of the 19th century many great inventions were made. Among them were the camera，the electric light and the radio. These all became a big part of our life today. The first part of the 20th century saw more great inventions. The helicopter in 1909. Sound movies in 1926. The computer in 1928，and jet planes in