15．You can always turn to your teachers when you are in trouble because they are reliable．In other words，they are worth depending on．

分析 當(dāng)你遇到麻煩的時(shí)候，你總是可以求助于你的老師，因?yàn)樗麄兪强尚刨嚨模粨Q句話說(shuō)，他們是值得依賴的．

解答 答案是reliable；本題考查語(yǔ)境中選用適當(dāng)?shù)脑~；reliable形容詞，可信賴的；題干中"they are worth depending on"表示"他們值得信賴"；故空格處be動(dòng)詞后需要的是形容詞"可信賴的"，答案是reliable．

點(diǎn)評(píng) 首字母填空必須在對(duì)語(yǔ)境整體理解的基礎(chǔ)上抓住指向答案的關(guān)鍵線索、固定句型或搭配等，結(jié)合首字母選用恰當(dāng)?shù)脑~，同時(shí)注意所選詞的形式變化．

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