VOA慢速英语:Barbara McClintock, 1902-1992: She Made Important Discoveries about Genes and Chromosomes

1.  Barbara was an active child with interests in sports andmusic.

interest in 对……有兴趣
例句：He doesn't manifest much interest in his studies. 
他对学习没表示出多大兴趣。 

2. Sometimes, the x-rays physically broke the chromosome. Geneticresearchers looked for changes in the organism.

look for 寻找
例句：The searcher fannned out to look for the missing boy. 
搜寻者散开去找那个丢失的男孩。 

3.  An old friend from Cornell, Marcus Rhoades, invited McClintockto spend the summer of nineteen forty-one working at the ColdSpring Harbor Laboratory.

work at 从事于
例句：I'm applying to work at the library. 
我在申请图书馆管理员的工作。 

4. This gave her the freedom to continue her research withouthaving to teach or repeatedly ask for financial aid.

ask for 征求
例句：He ask for leave of absence to visit his mother in hospital.
他请假去探望住院的母亲。