BBC news 2009-07-26 加文本

1.Three opposition leaders in Iran have called on senior clerics to help secure the release of what they say are hundreds of people arrested after last month’s disputed elections.

what they say插入语

插入语用法很多,在句子中的位置比较灵活,在学习中应当认真去体会。大体而言,插入语可以分为以下几类:
    (1)用简短的句子结构作插入语。这类短语有:I think, I hope, I guess, I believe, I suppose, I wonder, I tell you, I say, I'm afraid, I'm sure, you see, you know, as you know, that is, that is to say, what's more等等,它们可以置于句中或句尾。如:
    I suggest you choose someone who you think is kind and friendly.
    This diet, I think, will do good to your health.
    It won't be raining long, I hope.
    You will have to work harder, you know, if you want to succeed.
    (2)副词或副词短语用作插入语,这类插入语一般放在句首或句尾。如:
    Happily for him, his father's second wife was kind to him too.
    You'll be able to pass the coming exam, surely.
    Luckily for him, he didn't hurt in the accident.
    Honestly, I don't need it at the moment.
    (3)介词或介词短语作插入语,这类插入语一般放在句首,有时也可放在句中。如:
    Like most of my schoolmates, I have neither brothers nor sisters-in other words, I'm an only child.
    By the way, Bob sends his best wishes.
    On the other hand, I didn't know you were there.
    In short, things have begun to improve since schools were called on to reduce learning load.
    (4)分词短语作插入语。如:
    Judging from your accent, you must be from England.
    Generally speaking, he is the best student in our class.
    Compared with China, the USA is smaller.
    (5)不定式短语作插入语。如:
    To put it mildly, he was not up to the mark.
    To tell you the truth, I don't want to see her.
    To be sure, Jim is a faster skater, but he is not good at doing figures.
    To conclude, it was a great success.

2. Some of the bombers blew themselves up after approaching the police station wearing border police uniforms while other targets included a bank and a military hospital.

参考翻译：一些身穿边境警察制服的爆炸者在抵达警察局之后引爆自己。其他袭击目标还包括一所银行和一所军事医院。

结构分析：这句话的主句是前面部分。after approaching the police station是时间状语。wearing border police uniforms是现在分词做伴随状语。while是连词，将前后两个句子连接起来。

3.But for now at least, the atmosphere of hostility which dominated during the Bush administration seems to be a thing of the past.

参考翻译：但是，至少目前来说，布什政府期间占主导地位的敌对气氛已经成为过去。

结构分析：这句话的主干是the atmosphere of hostility seems to be a thing of the past. which dominated during……是定语从句，修饰atmosphere of hostility。