5. independence n. 独立，独立性

词句

the American Declaration of Independence 美国独立宣言

联想记忆

be independent of  独立出来

       As you must have seen from my work,I'm perfectly independent of him.

dependent on/upon sb./sth. (for sth.)依靠，依赖，取决于

       Success is dependent on how hard you work.

6. impact n. 冲击力

词句

on /upon impact 在撞击时

        The bomb exploded on impact.

He collapsed under the full impact of blow.

7. survive vt.幸免，从......逃生 vi.活下来，幸存

句子新概念英语第三册mp3

[survive +n. ] 存活，幸存

Only one baby survived the terrible car crash.

Few houses in this district have survived (after)the storm.      

Of the ten people in the plane that crashed,only one survived.

[survive +n. ] 比......活的长久

The man survived his sister by there years.

He is survived by his wife and two babies.