重点讲解：
1. be possible to do sth.
做得到的；能实现的；
eg. If it is possible to find out where your brother is, we shall.
如果能找出你兄弟在哪儿，我们就会去找。
eg. Gallant says it should be possible to reproduce dream images using this method.
加朗特说，运用这种方法应该能够重现梦中的图像。
2. a glimpse of/glimpses of
一瞥；扫视；
eg. When I saw how worried he was, I had a glimpse of his true feelings.
当我看到他是那么焦急的时候，我窥见到他真实的情感。
eg. We have only vague and tantalizing glimpses of his power.
我们只能隐隐约约地领略他的威力，的确有一种可望不可及的感觉。
3. be cooped up
被禁锢的；被困住的；被拘禁的；
eg. He is cooped up in a cramped cell with 10 other inmates.
他和其他10名犯人被囚禁在一间狭窄的牢房里。
eg. It isn't good for her to be cooped up all the time.
总是足不出户对她没有好处。
4. a clue to
线索；提示；
eg. He found a clue to solve the mysterious affair.
他发现解开那宗神秘事件的线索。
eg. The british heart foundation said the findings could offer a clue to ways of preventing heart disease.
英国心脏基金会称这个研究成果为预防心脏病提供了一个途径。