In a significant tightening of legal controls over the press, Lord Irvine, the Lord Chancellor, will introduce a draft bill that will propose making payments to witnesses illegal and will strictly control the amount of publicity that can be given to a case before a trial begins.
第一，划出定语从句和状语从句: that will propose making payments to witnesses illegal and will strictly control the amount of publicity /that can be given to a case /before a trial begins.
第二，划出介词短语：In a significant tightening of legal controls over the press
(1)主干结构是主语(Lord Irvine含同位语the Lord Chancellor)+将来时谓语(will introduce)+宾语(a draft bill)；
(2)that引导的定语从句修饰draft bill,其中，will propose 是第一个谓语，making payments to witnesses illegal是一个动名词短语做宾语，在动名词短语内部，payments to witnesses做making的宾语，illegal是宾补；第二个谓语是will strictly control, the amount of publicity是它的宾语。that can be given to a case before a trial begins是孕含有一个时间状语从句(before a trial begins)的定语从句，修饰publicity。
1. When a new movement in art attains a certain fashion, it is advisable to find out what its advocates are aiming at, for, however farfetched and unreasonable their principles may seem today, it is possible that in years to come they may be regarded as normal.
结构分析: 本句是由for连接的两个因果关系的并列句；for前面的部分是表示结果的分句，此句结构是when引导的状语从句+主句，主句主干结构是... it is advisable to ...，其中，it是形式主语，真正的主语是后面的动词不定式结构；动词不定式结构中又包含一个what引导的宾语从句，做find out的宾语；for后面的部分是表示原因的分句，此句结构是：让步状语从句+主句，主句主干结构是... it is possible that... ,it 是形式主语，真正的主语是后面的that从句；