U4RoadSafetyVIP专享VIP免费

trafficlightsazebracrossinggreenmancrosstheroadpoliceman(复数)policemenredmanpavement人行道waitonthepavementotherpeoplecrosstheroadwithotherpeopleWecan...Whatcanwedo?Whatcanwedo?Wecan...Weshould...Weshouldn't...Whatcanwedo?Weshould...Weshouldn't...Wemust（必须）...Wemustn't...mustnot=mustn't不得Atthezebracrossing.(T/F)1.Weshouldcrosstheroadatthezebracrossing.()2.Wecancrosstheroadwhenweseetheredman.()3.Wecancrosstheroadwhenweseethegreenman.()4.Wecancrosstheroadatanytime.()TFTFWhennozebracrossingaround.1.Wheremustwewaitbeforewecrosstheroad?2.Whatshouldwedowhenwewait?3.Howshouldwelookoutforthecars?4.Isitagoodideatocrosstheroadwithotherpeople?Why?Weshouldwaitonthepavement.Weshouldlookoutforcarsandbikes.Wemustfirstlookleft,thenrightandthenleftagain.Thedriverscanseeuseasily.Whenthere'snozebracrossingaround.Weshouldwaitonthepavement.Weshouldlookoutforcarsandbikes.Wemustfirstlookleft,thenrightandthenleftagain.Wecancrosstheroadwithotherpeople.Thedriverscanseeuseasily.Whenthere'snozebracrossingaround.Weshould...Weshould...Wemustfirst....,then....andthen....again.Wecancrosstheroadwith...Thedriverscan...