39.　　 graduate v. – graduation n.　

38.　　 German ---human .

37.　　 fish n. –fisherman　　　 forget v. –forgetful a. –unforgettable a

36.　　 explain v. – explanation n. (*pronounce v. – pronunciation n.)

35.　　 excited a. –exciting a. –excitedly ad. –excitement

[s] hurry v./n. –hurried a. –hurriedly ad.

*argue –　 argument　 唯一一个需要去”e”+”ment”构成名词的词-

34.　　 essential a. – essence n.

33.　　 enter v. – entrance n.

32.　　 enclose v. – enclosure n.

31.　　 electron n. – electronic a.

30.　　 electricity n. – electrical a. – electrician n. – electric a.