6.shatter v. 粉碎，破灭，碎裂

　　例句5.The flying debris shattered the window.

　　7.shepherd n. 牧民，牧羊人

　　8.shield n. 盾，屏障；v. 防护，保护

　　²shelter

　　例句6.protect, Parents shielded their children from harm.

　　9.shift v./n. 转移，移动，转变

　　²transfer, move, conversion

　　10.sign n. 符号，标记，招牌； v. 签(名)，签署

　　²signal n. 信号，暗号； v. 发信号，打信号；signature n. 签名，签字；significance n. 意义，重要性 ；signify v. 意味，预示

　　例句7.She signify her disagreement.

　　例句8.Please signify agreement by raising your hands.