stock

1.集合名词stock用作“股份”解原来是美国用法，相当于英国的shares。注意stock并不等于share，一个企业的全体shares是它的stock，两个企业才有两个stocks。说每一“股”该说share或share of stock。

2.take stock of是“观察”或“估量”。take stock in是“信任”或“看重”或“注意”。

3.She is of (a) Protestant stock和By birth he was a New Englander, though not of (a) Mayflower stock等句子里的a用的少，不用的多。

4.下面两句里的out of stock意思不同：

• When I ordered a copy of the book, the bookseller said it happened to be out of stock（不在存货中，缺货）.
• When I ordered a copy of the book, the bookseller said he happened to be out of stock（没有存货）.