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1·To introduce and consolidate common intonation pattern withwh? questions.

介绍和巩固 wh?句型的常用语调。

2·In the words flow, the reading intonation, which is related to tone, degree, stop and linking, speed and other factors, is the general pattern of the pitch variation.

朗读的语调是语流中呈现出来的音高变化的总体模式，它与字调、轻重、停连、快慢等因素有关。