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How主语从句
在句中作主语的名词性从句称为主语从句， 主语从句所对应的谓语动词通常用第三人称单数的形式。为了整个句子的平衡， 主语从句经常后置， 并用it充当形式主语(此时， that引导的主语从句若不放在句首， 可以省略引导词that)。例如： What she did is not yet known. 她干了什么尚不清楚。// Whoever comes is welcome. 不论谁来都欢迎。// It is a pity (that) we haven’t contacted for ages. 很遗憾， 我们几年没联系了。// It has not been decided where the meeting is to be held. 在哪里开会还没决定。// It doesn’t matter whether she will come or not. 她是否来这无关紧要。
late用法
late adj. & adv. 迟，迟的，晚的，晚期，在晚期。如：
He is never late for school. 他上学从不迟到。
The train was 10 minutes late. 火车晚点十分钟。
It's never too late to mend. 改过不为晚。
(It's)Better late than never. 迟做总比不做好。
The workers in the south often go to work early and leave off late.
南下打工仔经常是早上工，晚下班。
请记住以下几种搭配：
in the late afternoon 傍晚，在下午较晚的时候
in the late 1990's / 1990s 在二十世纪九十年代末
work late / far / deep into the night 工作至深夜
late in autumn 深秋
2.But it seemed that teenage physical activity was particularly important in terms of the prevention of cognitive impairments.
in terms of就…而言, 从…方面说来
例句：He referred to your work in terms of high praise.
他对你的工作大加赞扬。
He thought of everything in terms of money.
他是从钱的角度来看每一件事。
3.Still, she says, there is no reason to suggest that the finding about teenage physical activity should not apply to men as well.
Still用法
still强调过去发生的事情及存在的状况目前还在延续。在现在完成时的否定句中，still表
示吃惊或不耐烦的语气；但在现在进行时中，still只表示动作正在持续，不带有感情色彩。例如：
My neighbour hit my car last week and he still hasn't apologised. 我的邻居上周撞了我的车，可他到现在还没有道歉呢。
He's still living with his mother. 他仍与母亲住在一起。
