1.Don't get a_________so easily.It's bad for your health.
2.Be c___________when you cross the bridge.It's not so safe.
3.音标辨析(s发音的归类）
Dates,wins loves,finishes,watches,offices,oranges,goes,comes,comes,picks,client,parcels,ships,likes,places
/s/_____,______,_______,________,_______
/z/_____,______,_______,________,_______
/iz/_____,______,_______,________,_______