1常见的表示纯否定意义的前缀有：dis- like喜欢欢 dislike不喜欢欢 agree同意 disagree不同意 appear出现现 disappear 消失 in-complete完整的incomplete不完整的 correct准确的 incorrect 不准确的direct直 接 indirect间间接 im- possible可能的impossible不可能的 polite 有礼貌的impolite无礼的 proper适当的 improper不当的il-legal合法的illegal 不合法的 ir-regular 规则规则 的 irregular 不规则规则的 un- happy 开心的 unhappy不快乐乐的 fair 公平的 unfair不公平的 non- non-stop a.& ad.不停的,不断地 ab-normal正常的 abnormal 反常的即时练习： 一、用括号里的单词的适当形式填空。 1.Fried foods_ (agree) with me. Therefore, I seldom go to KFC.2. I was supposed to arrive at the airport on time. _ (fortunate), I was held up by the heavy traffic jam.Unfortunately (adv.)不幸地disagree (vt.)不适应3. She still suffers considerable _ (comfort) from her injury.4. They believe in _ (violent), simple living and little contact with the modern world.nonviolence (n.)非暴力discomfort (n.)不舒服 5. I am sorry to tell you that there is a slight _(accuracy) in this design.6. Therefore, when they become older they are _ (able) to do any other kind of work.unable (adj.)不能的 inaccuracy (n.)不准确7. Very early the next morning, amazingly, we got completely satisfied in a totally _ (expect) way.8. They create wildly _ (usual) baskets in different shapes and colors.unusual (adj.) 不平常的 unexpected (adj.)意料之外的9. The parcel was returned to the sender because the directions were _ (correct)10. The word “kick” sometimes is used to describe complaint or some kind of _ (dissatisfy).dissatisfaction (n.)不满 incorrect (adj.)不准确的11. I wont do the purchase because the price of this dress is _ _(reasonable).12. Loneliness in a gloomy raining day may be _ (bear) to him. unbearable (adj.)不可忍受的 不合理的 unreasonable (adj.)肯定否定形式及中文意思 1.responsible 2.selfish3.honest 4.ability 5.employment6.approval 7.important 8.lucky 9.necessary 10.moralirresponsible不负责任的unselfish无私的 dishonest不诚实的 inability无能unemployment失业 disapproval不赞成 unimportant不重要的 unlucky不幸运的 unnecessary不必要的 immoral不道德的