1.It is only when we cannot see perfectly that we realize how important our eyes are.

2.They can see things that are far away, but they have difficulty in reading a book unless they hold it at arm's length.

3.The same comment is made from generation to generation and it is always true.

4.Events that the older generation remembers vividly are nothing more than past history.

5.What they reject more than anything is conformity.

答案：

1.只有當我們看東西不清楚時，我們才意識到我們的眼晴是多么地重要。

2.這些遠視的人們能看清遠處的東西，但是他們讀書卻很困難，除非他們把書舉到一臂遠的距離處去看。

3.同樣的理論代代相傳，而且總是正確。

4.老一代記憶猶新的重大歷史事件對年輕人來說不過是過眼煙云而已。

5.他們所厭惡的莫過于循規(guī)蹈矩。