1 . 听双语新闻—语法填空

Chinese rail design standards win intl approval

Two international standards for high-speed railway infrastructure design and power supply, which were mainly drafted and developed by China, have been published by the International Union of Railways,     1     (demonstrate) the nation’s contribution to promoting the internationalization of high-speed railway standards. Led by     2     (expert) from China, more than 20 professionals from a dozen countries, including France, Germany, Japan and Spain, spent four years drafting the two latest standards.

By the end of last year, China’s high-speed railway network stood at more than 40,000 kilometers, accounting for over two-thirds of the world’s total high-speed rail. China’s high-speed railway system spans different geographic conditions, including icy weather,     3     (freeze) soil, mountainous areas and humid coastal areas, providing abundant experience in building high-speed rail.

2 . 听下面一段对话，根据所听内容填空。

Yes, you can take a rest or ______ ______ ______.