3.7　Summary

In this chapter，the steps of corpus building are explained and different kinds of software are introduced.Corpus building is so critical that any discrepancy may result in the reverse conclusion in the following analysis.During the process of corpus building，Ipay special attention to the sizes of OETT and TETT，so com parability is assured.The lexical，grammatical，syntactical and textual analysis will be conducted in the next chapter to observe the differences between OETT and TETT.

【注释】

[1]Tagset can be found in the website http：／ucrel.lancs.ac.uk／claws8tags.pdf.(https://www.daowen.com)

[2]The software and baseword list can be downloaded from the website http：／／www.victoria.ac.nz／lals／staff／paul-nation.aspx.

[3]Seehttp：／ucrel.lancs.ac.uk／llw izard.htm l for Log-likelihood calculator.