B

Our name is what other people know us by and something that distinguishes us from everyone else. The use of last names became much more popular in 1066. The origin of your last name largely depended on the ethnic(种族的)background of your ancestors. For example，traditional Jews are required by religious law to name one of their babies after a dead relative，and the Chinese usually have three names：a family name，a generation name and an individual name.

English，Welsh，Scottish and Irish last names are typically grouped into four categories：professions，localities，nicknames and first names.

Many people acquired their last names due to their trade or professions. These names are easy to understand：Farmer，Baker and so on. Some people were named after where they were from，or after geological characteristics of the land. Marsh and Sydney are examples of this type. Also people were often named after nicknames；these are some of the most interesting last names. For example，Gotobed came from someone who was lazy.

Last names based on first names were very common in the history of Britain and Ireland. Often a suffix(后缀)or prefix is added to indicate the relationship of the individual with the person after whom the individual is named. For example，the suffix"son"means "son of"，and the prefix"O'"means grandson and "Mac"or"Mc"means"son of"．

Your first name is one of the most important gifts your parents give you. Most first names have a meaning. The most popular girls' name in 2015 in the US was Emily，which in Latin means"rival"．So take some time and do research on your name-you might be surprised.

5．What can we know from the first paragraph?

A．Name is a big part of our identity.

B．Last names began to be used in 1066.

C．Jews often name their babies after their dead friends.

D．Our ancestors' ethnic background determines our last name absolutely.

答案　A　[推理判断题。根据第一段的第一句可知，名字是别人了解我们并把