Exercises of Derivation and Word spellingEX1. Complete the following sentences by adding a prefix to the words.1.Rose said that it was ___fair if Dad gave me a dictionary but gave her only a diary.2.The mother ___dressed the baby, then put him in a basin of warm water.3.Though he didn’t win the champion in the last football game, he was not ___couraged.4.It’s ___possible for anyone to finish the work within such a short time.5.Please don’t ____understand what I have said.6.This cloth would be ___visible to anyone who was ___fit for the office he held. EX2. Add a negative prefix to each group to create words with opposite meaning.____-appear ability agree honest ____-usual expected willing happy lucky fortunately____-convenient correct capable visible experienced ____-possible polite mature ____-stop smokers ____-understand take fortune leadEX3. Do you know the meaning of the following prefixes? Can you list more words with these prefixes? re—retellen—encouragepost—postwarpre—pre-readingunder—undergroundover—overworksub—subwaySino—Sino-AmericanDis—disqualify EX4. Word spelling （义→性→形）1.Tom didn’t pass the mid-term test because of his __________（粗心 care）2.Although they are twins, they often have __________ （分歧 differ）in doing things together. 3.More and more __________ （西方人 western）are becoming interested in China. 4.Learning to speak a foreign language can ________（丰富 rich） one’s life. 5.He is a doctor with great ________（耐心 patient）. 6.__________（不幸 fortune）, an accident happened to his brother. 7.October 1st is our N_________ Day. （国庆日 nation）8.WTO stands for the World Trade O______________. （组织 organ）9. China’s athletes won the most medals in Doha A_______ Games last year. （亚运会 Asia）10. He is a good p________. He often practices playing the piano. （钢琴家 piano）
