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7. Not _________ recently did I have any idea what a guided missile was like.

A. since                   B. when                   C. until                    D. in

【分析】此題答案選C，屬 not … until… 句式的一種變體，即將 not until…置于句首，其后用倒裝形式。又如：

Not until yesterday did he begin his work. 直到昨天他才開始他的工作。

Not until he came back did he realize how serious the matter is. 直到他回來，他才意識(shí)到問題有多嚴(yán)重。

8. Hard _________ he studies, he cannot pass the examination.

A. when                   B. how                     C. as                        D. while

答案選C，屬英語的讓步倒裝結(jié)構(gòu)，其基本句式為“名詞(不帶冠詞)、形容詞、副詞、動(dòng)詞等+as+主語+動(dòng)詞”。又如：

Child as he is, he did it very well. 他雖是個(gè)孩子，但已干得很不錯(cuò)了。

Young as he is, he knows a lot. 他雖年輕，但懂得很多。

Try as he would, he couldn’t do it well. 雖然盡了很大努力，但仍未把它做好。

注：以上各例中的 as 也可換成 though，但不能換為 although。如：

Child though he is, he did it very well. 他雖是個(gè)孩子，但已干得很不錯(cuò)了。

9. _________ he followed my advice, he would have succeeded.

A. When                  B. If                         C. Had                     D. Has

答案應(yīng)選C，但容易誤選B。不能選B，主要是因?yàn)闀r(shí)態(tài)前后有矛盾。由于主句謂語是would have succeeded，這表明是對(duì)過去事實(shí)作出的假設(shè)，所以從句謂語應(yīng)該是 had followed，所以，如果選B，句子應(yīng)該是 if he had followed my advice。但按英語語法，在此類表示虛擬條件的從句中，若有 had, should, were 等詞，便可省略 if，而將 had, should, were 提前置于句首。又如：

If he were my friend, I would ask him to lend me some money.= Were he my friend, I would ask him to lend me some money. 假若他是我的朋友，我就會(huì)向他借些錢。

If it should rain tomorrow, I should stay indoors.= Should it rain tomorrow, I should stay indoors. 如果明天下雨，我就呆在室內(nèi)。

If he had asked me, I would have told him. = Had he asked me, I would have told him. 要是他問過我，我就會(huì)告訴他了。

10. Then _________ a new development that had far-reaching effects.

A. come                   B. coming                C. came                   D. had come

答案選C，句子為時(shí)間副詞 then 置于句首的倒裝句，came 為句子謂語。注：這類倒裝句的謂語通常是 go, come, follow, exist, remain 等不及物動(dòng)詞。又如：

Then followed a great noise. 接著傳來一陣巨響。

Then came the day of his examination. 接著就是他參加考試的日子。

11. This is your work. In _________ case are you to leave your post.

A. any                      B. this                      C. which                  D. no

答案選D，注意 in no case 后用了倒裝語序 are you to leave your post。按英語習(xí)慣，具有否定意義的詞置于句首時(shí)，句子用倒裝句式。又如(www.52ysedu.com)：

(1) _________ did he know the police were after him.

A. So                       B. Even                    C. Little                    D. How

(2) At _________ time should you place your personal interest first.

A. that                      B. one                      C. no                        D. what

(3) In _________ way can we allow this to continue.

A. this                      B. either                    C. no                        D. a

(4) By _________ means should we do our work like that.

A. every                   B. all                        C. no                        D. those

(5) _________ only did I know her, but I was her best friend.

A. If                         B. Even                    C. Not                      D. Too

以上各題答案均選C，注意句子所用的倒裝語序，說明句首使用了表示否定意義的詞。注意以下例外：

(1) No wonder he didn’t want to go. 難怪他不想去。

(2) No doubt we will win in the end. 最后肯定是我們贏。

(3) In no time he came up to help. 他馬上跑過來幫忙。

上面句(1) no wonder(難怪)置于句首，其后并未用倒裝語序，原因有二：一是 no wonder 雖然含否定詞，但并不含否定意義；二是 no wonder 其實(shí)是一種省略表達(dá)，它的完整形式為 it is no wonder that…，如上句可補(bǔ)充為It’s no wonder that he didn’t want to go.  句(2)和句(3) 的no doubt(肯定地，無疑地) 和in no time(立即，馬上)置于句首，其后未用倒裝語序，也是因?yàn)殡m然它們含有否定詞 no，但并不表示否定意義。

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