表示對(duì)比，比較：

　　1、以-ior結(jié)尾的形容詞，后接介詞to表示比較，如：superior ,inferior,prior,senior,junior

　　The quarrel happened prior to my arrival.

　　2、一些本身就含有比較或比擬意思的形容詞，如equal，similar，equivalent，analogous

　　A is similar to B in many ways.

　　3、表示一些先后順序的形容詞，如：second,subsequent,next,preliminary,preparatory

　　Subsequent to the war,they returned to their hometown.

　　4、to也偶爾出現(xiàn)在個(gè)別動(dòng)詞之后,與動(dòng)詞形成固定詞組,表示比較,如:prefer to,compare to,in contrast to compare to sth.表示比喻或比擬,而compare with sth.表示比較,如:

　　World is usually compared to a stage

　　Compared with his past,he has changed a lot.

　　Prefer的正確句型是:prefer A to B或prefer doing A to doing B,但當(dāng)prefer后接動(dòng)詞不定式時(shí),表示比較的介詞to就要改成rather than ,如:

　　The undaunted soldier preferred death to surrender.

　　5、to與及個(gè)別的名詞構(gòu)成比較之意,如:alternative

　　Going to an under water concert is a great alternative to going to dinner.