1. No sooner        at the lab than he got down to the research work with his partners. (arrive)

他一到達(dá)實(shí)驗(yàn)室就開始與同事一起著手他們的研究工作。

1. had he arrived考查時(shí)態(tài)和倒裝句型。no sooner... than..."剛... 就.. ",為固定句型。no sooner 后的句子接過(guò)去完成時(shí),than后句子接一般過(guò)去時(shí)。類似結(jié)構(gòu)還有hardly / scarcely / barely... when...., no sooner為否定詞，放在句首，后用部分倒裝。其他否定詞或短語(yǔ)有hardly, not only，seldom， rarely, barely, never,in no time, under no circum?stance ,in no way,by no means

題目來(lái)源：高考丟分題英語(yǔ) > Unit 1 Festivals around the world

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