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发音<br>上下齿接近闭合<br>舌端靠近牙龈<br>声带不震动<br><br>单词<br>sit ski sky<br>box fix mix<br>say sea see<br>cell cent city <br>face ice nice<br>smile small sell <br>stay stop swim<br>glass class less <br>some song soon <br>base case sense<br><br>句子<br>The sky is blue.<br>Don’t sit on the box.<br>Please keep smiling.<br>There are some songs.<br>The city is covered by snow.<br><br>同音<br>it’s its<br>sew so<br>sea see <br>son sun<br>sale sail<br>cent sent<br>some sum <br>scene seen<br>mist missed<br>past passed<br><br>辨音<br>[s] [z]<br>rice rise<br>ice eyes<br>race rays<br>base bays<br>race raise<br>loose lose<br>peace peas<br>place plays<br>face phase <br>price prize<br><br>[s] [θ]<br>sin thin<br>bass bath<br>pass path<br>sank thank<br>sing thing<br>sink think<br>sum thumb