普通專升本英語語法：倒裝結構之部分倒裝

    部分倒裝
    部分倒裝指將謂語的一部分如助動詞或情態(tài)動詞倒裝至主語之前,而謂語動詞無變化。如果句中的謂語沒有助動詞或情態(tài)動詞，則需添加助動詞do, does或did，并將其置于主語之前。
    1. 下列否定詞及含有否定意義的詞組修飾狀語時，若置句首，句子的主謂要部分倒裝 ：never, no, neither, not only, hardly, scarcely, little, seldom, rarely, not until, nowhere, at no time, on no account, in no respect, in no sense, by no means, in no way, no longer, no less, no more, no sooner than, under no circumstances, in vain, still less。
    例如：Not only is its direct attack on their discipline, it bypasses the essence of what sociologists focus on. Under no circumstances should we do anything that will benefit ourselves but harm the interests of the state.
倒裝結構之部分倒裝
    2. 以only修飾狀語開頭的句子，句子的主謂要部分倒裝
    例如：Only when you have obtained sufficient data can you come to a sound conclusion.
    3. 以下列副詞或短語開頭的句子，句子的主謂要部分倒裝 ：often, so, well, to such a degree, to such an extent, to such extremes, to such a point，many a time。
    例如：So involved with their computers do the children become that leaders at summer computer camps often have to force them to break for sports and games.