Not until World War II ______ to use new chemical techniques to purify penicillin.
A.they managedB.that they managed
C.did they manageD.they didn’t manage
C

試題分析:考察倒裝句。當(dāng)否定詞或者半否定詞放在句首的時(shí)候,后面的主句使用部分倒裝的形式。本題的Not until World War II是否定詞引導(dǎo)的時(shí)間狀語從句放在了句首,后面使用部分倒裝的形式。故C正確。
點(diǎn)評(píng):部分倒裝中考查較多的有:(1) 含有否定意義的詞never,seldom,little. hardly,not,scarcely,nowhere,by no means(決不)等置于句首時(shí)。(2)以only修飾作為狀語的副詞、介詞短語或從句,且放在句首時(shí)。 注意:only 修飾狀語從句放在句首時(shí),狀語從句不需要倒裝,只能倒裝主句部分。(3)當(dāng)so置于句首意為“也如此”,neither,nor置于句首意為“也不”時(shí)。當(dāng)so表示對(duì)前句內(nèi)容的肯定和附和,譯作“確實(shí),正是”時(shí),用自然語序。(4)當(dāng)not only…but also, so/such…that, not… until, no sooner… than, hardly… when等連詞置于句首時(shí)。(5)在as引導(dǎo)的讓步狀語從句中(名詞/形容詞/副詞/動(dòng)詞+as+主謂結(jié)構(gòu))。(6)虛擬語氣的條件狀語從句省去 if時(shí),須將were,had,should提到句首構(gòu)成倒裝句。(7)頻度副詞often, always, once, now and then, every other day, many a time等放在句首時(shí)。(8)為了使句子保持平衡,為了強(qiáng)調(diào)表語或?yàn)榱耸股舷挛木o密銜接時(shí),常使用倒裝語序。
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