2．It wasunbelievable （難以置信的） that such an honest fellow should have betrayed his friends．

分析 真是難以置信這樣一個(gè)老實(shí)人竟然出賣(mài)了他的朋友

解答 unbelievable 考查形容詞．根據(jù)句意：真是難以置信這樣一個(gè)老實(shí)人竟然出賣(mài)了他的朋友．unbelievable是形容詞"令人難以置信的"，在句中做表語(yǔ)．

點(diǎn)評(píng) 本題考查形容詞的詞義．形容詞詞義一直都是高考考查的一個(gè)熱點(diǎn)，它注重考查考生結(jié)合語(yǔ)境準(zhǔn)確選用詞語(yǔ)的能力．由于英語(yǔ)詞匯豐富，且用法多變，考生掌握起來(lái)有較大難度，因此在平時(shí)應(yīng)注意詞匯的積累，理解詞語(yǔ)的含義及其常見(jiàn)的習(xí)慣搭配，再聯(lián)系句子所表述的意義和語(yǔ)境，選出正確的答案．

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