福建省长泰一中2017届高考英语一轮复习单元精练：人教版必修1 Unit 4
<p> 能力演练</p><p> 一、语法填空</p><p> 专题训练（一） 巧用派生词，做好语法填空。</p><p> ◆技巧点拨</p><p> 英语中有许多单词可带否定前缀或否定后缀，将该词变成一个与原来单词意义完全相反的词。在做语法填空时，要仔细领会短文的意思，理清文章脉络，注意行文逻辑，特别注意上下文之间有无转折、对比、相反关系，如果有此种关系，文中又没有相应过渡词语，就要考虑利用构词法知识，即利用单词的否定前缀或否定后缀来解题。</p><p> 常用的否定前缀有：</p><p> <span word="in">in</span>+<span word="adj">adj</span>.—<span word="adj">adj</span>. <span word="correct">correct</span>—<span word="incorrect">incorrect</span>(不正确的)</p><p> <span word="active">active</span>—<span word="inactive">inactive</span>(不积极的)</p><p> <span word="im">im</span>+<span word="adj">adj</span>.—<span word="adj">adj</span> <span word="polite">polite</span>—<span word="impolite">impolite</span>(不礼貌的)</p><p> <span word="patient">patient</span>—<span word="impatient">impatient</span>(不耐烦的)</p><p> <span word="un">un</span>+<span word="adj">adj</span>.—<span word="adj">adj</span> <span word="lucky">lucky</span>—<span word="unlucky">unlucky</span>(不幸运的)</p><p> <span word="happy">happy</span>—<span word="unhappy">unhappy</span>(不高兴的)</p><p> <span word="il">il</span>+<span word="adj">adj</span>.—<span word="adj">adj</span> <span word="logical">logical</span>—<span word="illogical">illogical</span>(不合逻辑的)</p><p> <span word="legal">legal</span>—<span word="illegal">illegal</span>(非法的)</p><p> <span word="ir">ir</span>+<span word="adj">adj</span>.—<span word="adj">adj</span> <span word="regular">regular</span>—<span word="irregular">irregular</span>(不规则的)</p><p> <span word="responsible">responsible</span>—<span word="irresponsible">irresponsible</span>(不负责任的)</p><p> <span word="dis">dis</span>+<span word="adj">adj</span>.—<span word="adj">adj</span> <span word="honest">honest</span>—<span word="dishonest">dishonest</span>(不诚实的)</p><p> <span word="satisfied">satisfied</span>—<span word="dissatisfied">dissatisfied</span>(不满意的)</p>
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