BBC news 2011-01-10 加文本

1.But protesters say the casualty figures are a lot higher than officials say and that they are demonstrating against lack of freedom and high unemployment.

a lot higher,a lot修饰比较级

可以修饰比较级的短语：

1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等

2)还可以用表示倍数的词或度量名词作修饰语。

3)以上词(除by far)外，必须置于比较级形容词或副词的前面。

2.It said not all of the suspects were Saudis, but their aim was to establish cells inside Saudi Arabia and send others for training abroad.

not all部分否定

all 的否定式：not all…（或：all…not）表示"并非都……"、"不是所有的都……"例如：

Not all men can be masters. (= All men cannot be masters.) 并非人人都能当头头。

Not all bamboo grows tall. 并非所有的竹子都会长得很高。

both 的否定式：not…both (或：both… not) "并非两个……都……" 例如：

I don't want both the books. 我不是两本书都要。

Both (the) windows are not open. 两扇窗子并不都开着。

三、 every…的否定式："不是每……都……" 例如：

Not every book is educative. (或：Every book is not educative.) 不是每本书都有教育意义的。

Not everyone likes this book. 并非人人都喜欢这本书。

This flower is not seen everywhere. 这花并不是随处可见的。