1.With the zoo world`s rather mediocre record on conservation,one might be forgiven for being slightly about such an advertisement.(这句怎么翻译呢?后半句基本看不懂!)
2.The WZCS estimates that there are about 10,000 zoos in the world,of which around 1,000 represent a core of quality collections capable of participating in co-ordinated conservation programmes.(这句怎么翻译呢?of which句型怎么分析呢?)
3.This might be a good starting point, working on the premise that members must meet certain standards,but again the facts don`t support the theory.
(为什么work要加ING呢?怎么翻译这句子呢?)
4.Given that the international conference at London Zoo was held 30years agl,this is pretty slow progress,and a long way off Tudge's target of 2,000.
(为什么句首要用过去分词呢?)
谢谢你们,帮忙解说一下!非常感谢!