【参考答案】 B

2. With some books badly needed _______, she hurried to the bookstore.

A. buying B. bought C. to buy D. buy

【参考答案】 C

【试题解析】在with复合结构中，不定式表将来。句意：有一些书要买，她急匆匆地去了书店。故答案为C。

【知识拓展】

with复合结构可在句中作状语和定语，其具体形式如下：

with＋n./pron.＋形容词/副词

with＋n./pron.＋分词

with＋n./pron.＋不定式

with＋n./pron.＋介词短语

with＋n./pron.＋名词

☞With a lot of homework to do, I can't go skating with you.

因为有很多作业要做，我不能和你一起去滑冰。

☞She died with her son yet a baby.

她去世了，儿子还在襁褓中。

☞The man was walking on the street, with a book under his

arm.那人在街上走着，腋下夹着一本书。

3.(2015·天津) Only when Lily walked into the office_________that she had left the contract at home.

　　A.she realized B.has she realized

　　C.she has realized D.did she realize

【参考答案】D

【知识拓展】

1. only if 意为＂只有＂，引导条件状语从句，放在句首或主句后均可，放在句首时主句要部分倒装。

☛Only if you work hard can you stand out.你只有努力工作才能出人头地。

☛I wake up only if the school bell rings.只有学校的铃响了，我才会醒。

2. only修饰状语或状语从句时，从句不倒装而主句倒装。

☛Only in Paris do you find bars like this.只有在巴黎，你才会发现像这样的酒吧。

☛Only when he is seriously ill does he ever stay in bed.只有病得很重时，他才卧床休息。 【演练】