unit6t3sc課件(完整版)
【正文】 be safe . 目的，意圖 up the outline of 1a. Bicycle riding ｛ 1. Bicycles are very popular. 2. Bicycle riding is good for health and the environment. riders must obey the safety rules. about the pictures . Is it safe to do that? We should /must (not)… when riding . Is it safe to do that? We should (not)…… wear helmets We should (not)…… follow the traffic signals We should (not)…… carry others or play on the road We should (not)…… make a call in groups and talk about your own ideas about: Ho
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