叮嘱：
1. 在英语中，有时可以使用倒装句来强调句子中的某一部分内容。例如：Only when the sun goes down do the bats come out to hunt.
2. 在英语中，还可以使用否定词或状语置于句首时进行倒装。例如：Not only did she finish her homework, but she also cleaned her room.
1.部分倒装
这类词(组)指的是含有否定意义的副词或连词，当它们置于句首时，会引起部分倒装结构。
infrequently、scarcely、hardly、rarely ever、only rarely、 hardly ever、at no point、rarely if ever、few and far between、 only once in a while、once in a blue moon
Barely had the concert started when it began to rain heavily. Not until the final act did the rain stop.
这些短语在句子中都用来表示一种事件紧接着就发生了另一种事件。
Some people like to go nowhere during their holidays, while others prefer neither the mountains nor the beach.
It was only after losing my job that I realized the need to enhance my working skills.
When "only" with an adverb is placed at the beginning of the sentence, partial inversion of the main clause is required.
Good relationships can only be maintained when you have peace in your heart.
只有当你能够在内心保持平静时，才能够与他人建立良好的关系。
(3)表示强调。
部分倒装句型常用于强调句子中的某个部分，它的结构是部分主语+动词+其他部分。比如，将句子“他常常在公园里散步”改为“常常在公园里散步的是他”。
他取得了如此惊人的进步，以至于受到了赞扬。
倒装结构“so/neither/nor＋助动词”用于表示前面所说的情况也适用于后者。
主语 + isn't/doesn't/can't/won't/wouldn't/didn't… + 动词/情态动词 + either/neither/nor（表示否定意义）/so（表示肯定意义）。
Last week, I watched the film "The Great Wall," and she did too.
2．完全倒装
on the table、under the bed、into the kitchen、around the corner、across the street、along the path
首需用逗号隔开。
子用全部倒装。
buildings with elegant architecture that give the area a grand and majestic atmosphere. The Public Square is truly a beautiful and impressive part of the city that captures the attention of all who pass by.
大众广场是这个城市的一大亮点，许多历史名人的雕塑矗立在那里，吸引着众多游客驻足观赏。
The professor warned the students that under no circumstances should they use their mobile phones.
Should they
【答案】A
忽视重要的细节。句中的 warn 是及物动词，后面的宾语从句在句中做主语，主句的谓语动词是 should not be ignored，属于祈使句的倒装结构。
决不该使用手机。
根据该句意，"should do" 的意思是“应该”，所以选择 A。
Without the support of the teachers, the student could not overcome her difficulties.
B. Were it
【答案】B
没有老师们的支持，该学生是无法克服的。这句话使用了虚拟语气和倒装结构。
她自己的困难的。在虚拟语气中，be 动词统一使用 were；虚拟语气的省略形式主要是 were。
选择B是因为if被省略，同时were/should/had提前了。
