如何学习掌握答题技巧？

On the whole, such a conclusion can be drawn with a certain degree of confidence, but only if the child can be assumed to have had the same attitude towards the test as the others with whom he is being compared, and only if he was not punished by lack of relevant information which they possessed。    

主干识别：such a conclusion can be drawn

其他成分：状语一：with a certain degree of confidence

状语二：but only if the child can be assumed to have had the same attitude towards the test as the others with whom he is being compared,

状语三：and only if he was not punished by lack of relevant information which they possessed。    

词汇点拨：

On the whole 总的来说

only if 只有

翻译点拨：

主句翻译：

被动变主动：

such a conclusion can be drawn

得出这种结论

with a certain degree of confidence

状语的翻译：

是有一定把握的

再翻两个状语从句：

可以先处理

only if and only if

两个从句就是两个条件或者两个前提，两个假定;

再翻第一个从句：

the child can be assumed to have had the same attitude towards the test as the others with whom he is being compared

这个孩子对测试的态度和与他相比较的孩子对测试的态度被假定为相同的

再翻第二个：

he was not punished by lack of relevant information which they possessed。    。