future progressive

The teachers also all spoke to express to the assistant progressive affirmative and future expectation.

老师们也都发言表达了对助理进步的肯定和未来的期望.

An overview of the present status and the future prospects are described. The important technique innovations and the progressive tendency on the regenerative refrigeration technology of the pulse tube, G-M, Stirling and Boreas refrigerators are summarized.

概述回热式（不包括非回热式）气体制冷技术的现状和前景，对PT，G－M，St和Boreas等各种制冷机的重大技术革新进行了扼要介绍，指出发展趋势。

Write the following sentence in the simple past tense, past progressive tense and future tense.

请将下面的句子改写成一般过去时, 过去进行时和一般将来时.

Introduces the background of the next generation internet protocol IP version 6 briefly, analyzes the structure and address format of IPv6; and then discusses its security problem, and how to carry out IPv6 over present networks; at last gives a progressive perspective of its future.

简要介绍了新因特网协议IPv6的诞生背景，分析了IPv6结构和地址格式，讨论了IPv6的安全问题以及如何在现有的网络上实现IPv6，并对其发展方向作了进一步的展望。

Finally, according to the teaching problems in the implementation process of the learning case, we are put forward the future research work. "The graduation progressive teaching case" is a feasible and efficient teaching mode, it need farther improvement and extension.

最后根据学案实施过程中存在的问题对今后的研究工作提出了设想。分层递进式导学案教学是一种可行而且高效的教学模式，需要进一步完善和推广。