4．Herschel was firmlyconvinced（確信）of the possibility of life on other planets．

分析 Herschel堅(jiān)定地相信其他星球上存在生命的可能性．

解答 答案：convinced
考查翻譯填空．根據(jù)句意和句子結(jié)構(gòu)，要填入形容詞，convinced意為"確信的；確定的"，be convinced of意為"確信"．

點(diǎn)評(píng) 考查翻譯填空，準(zhǔn)確地理解句子、翻譯句子，然后根據(jù)句意及提示確定所填單詞詞性，正確寫(xiě)出單詞完成句子，使句意更通順．

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