1.改變詞類(Conversion)。英語一個詞能充當(dāng)?shù)木渥映煞州^少,充當(dāng)不同成分時常常要改變詞類。
Insulin is used in the treatment of diabetes.
This issue is of paramount importance.
Rationing by points is over and rationing by the purse is in.
Oceanography has been defined as “The application of all sciences to the study of the sea”. (1990. 1)