if circumstances allow/permit如果情况允许

　　The strategy was too dangerous in the explosive circumstances of the times.

　　在当时那种一触即发的形势下，采取那样的策略太危险了。

　　I wish we could have met under happier circumstances.

　　我真希望我们是在更愉快的情况下相识的。

　　[特别提醒]　抽象地点名词，如：point，stage，case，situation，condition，position，activity，race，competition，system，job，scene，life，occasion，environment，circumstance等作先行词时，用where引导。如：

　　He got into a situation where it is hard to decide what is right and wrong.

　　Today，we’ll discuss a number of cases where beginners of English fail to use the language properly.

　　[思考题]

　　表达“决不”的短语还有：at no time，by no means，on no account，in no way，on no condition，in no case等。

　　[夯实基础]

　　(1)语法填空

　　①He wrote a letter where he explained what had happened in the accident.

　　②Nowadays people are more concerned about the environment where they live.

　　③He may win the competition，where he is likely to get into the national team.

　　④Sales director is a position where communication ability is just as important as sales skills.

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