问题 问答题 简答题

什么叫做国际标准大气?为什么要制定国际标准大气?

答案

参考答案:

国际标准大气是以北半球中纬度地区的大气物理性质的平均值作为基础建立的,并假设空气是理想气体,满足理想气体方程:P0=RρT:因为大气的各种物理参数在随着地理位置、地形、季节的不同而不同,因此航空器的飞行性能也在随着改变,这是航空器的制造和使用在不同条件下有不同的结果给使用者带来麻烦,因此必须有一个统一标准在世界范围内比较、计算。为此国际民航组织制定了标准大气。

阅读理解

Only three local students won Chinese Blog Competition. And 15 of the 18 awards went to students from China.

170 students’ task: to get a fully-designed blog up and running, complete with many postings based on a theme of choice—all written in Chinese.

Themes ranged from local opinions-such as the usage of Singlish, education and whether Singapore can be a cultural centre-to food blogs.

The entries were judged on Language proficiency(熟练程度)and the quality of writing, as well as the design and level of exchanging ideas with readers.

Academics(学者) from the National University of Singapore and the SIM University IT experts, and a journalist from Chinese newspaper Lianhe Zaobao in Singapore made up the judges.

In the end, only three Singaporean students made it to the award list—the rest of the awards were swept up by students from China.

“No surprise, ” said Mr. Chow Yaw Long, 37, teachers in charge from Innova Junior College, which organized the event. “Although the topics were local subjects, the foreign students were generally better in terms of the content of the posts and their grasp of the Chinese language. ”

One of the three local students winning the first prize in the Best Language Award was blogger Christina Gao 19, from the Saint Andrew’s Junior College, who spared no effort in researching for and writing her blog. Each entry took her between five and seven days to produce, complete with pictures and even podcasts

Her advice for bloggers is: Be responsible

“Some bloggers out there only seek to blame the authorities and other bloggers.” Said Miss Gao. “I think they lack responsibilities and there is no value to their posts.”

小题1:The competition was organized by ___________.

A.the National University of Singapore

B.Chinese newspaper Lianhe Zaobao

C.the Saint Andrew’s Junior College

D.Innova Junior College小题2:Which of the following is TRUE according to the passage?

A.Not all the themes were about local subjects.

B.Chinese students won most of the awards.

C.The blogs could be written in Chinese or Singlish.

D.The judges were from universities in Singapore and China.小题3:What Miss Gao said suggests that    ___________.

A.she likes to blame the authorities

B.she thinks highly of the others’ blogs

C.she has a sense of responsibility

D.she loves to read valuable posts小题4:The passage is mainly about   ___________.

A.how Chinese students won the awards in the competition

B.why bloggers should take responsibility for their blogs

C.what the result of the competition was

D.how Miss Gao won the first prize in the competition

单项选择题