【典例精析】1.（2008江苏卷,英语，32）______ you eat the correct foods ______ be able to keep fit and stay healthy.
A. only if; will you B. Only if; you will
C. Unless; will you D. Unless; you will
【解析】A句意：只有正确饮食，你才能保持身体健康。从句意可知unless不符合题意。D项应在will后加not。Only if 表条件且位于句首，应用部分倒装。
2.（2008江西卷，英语，31）It was announced that only when the fire was under control ___ to return to their homes.
A. the residents would be permitted B. had the residents been permitted
C. would be residents be permitted D. the residents had been permitted
【解析】C句意：据宣称只有当火势得到控制的时候，居民们才可以返回家中。Only+when从句放在句首时，用部分倒装。时态应用过去将来时。
3.（2008辽宁卷，英语，35）35. Bill wasn’t happy about the delay of the report by Jason, and ______.
A. I was neither B. neither was I C. I was either D. either was I
【解析】B句意：比尔对贾森做报告推迟这件事表示不高兴，我也不高兴。考查neither表否定时，位于句首引起部分倒装的结构。Either无此用法。
4.（2008陕西卷，英语，7）Not until the motorbike looked almost new _________ repairing and cleaning it.
A. he stopped B. did he stop C. stopped he D. he did stop
【解析】D句意：他把摩托车擦洗和修补的和新的一样时才停下来。Not until引导的状语从句位于句首时，主句部分需部分倒装。 |
