A、數(shù)字類：data,figure,rate,ratio,percentage,propotion,demography,statistics,number(of),one, two,…,first,second...etc(雅思閱讀基本信號詞中最常見的一類)

　　B、時間類：day,week,month,March,July,..,1946,1997,…,year,quqrter(-ly),future,now, past,present,recent(-ly),early,late,last,history,traditionally,old,new,no

longer,before,century, BC,AD,time,annually,minute,hour,etd;(雅思閱讀基本信號詞中最常見的一類)

　　C、程度類：increase,decrease,reduce,recede,rise,reduction,recession,more,less,-er,-east,most;(雅思閱讀基本信號詞中最不容易被發(fā)現(xiàn)的一類)

　　D、定義類：process,phenomenon,situation,condition,change,inference,implication, assumption,definition,explanation,evidence,fact,be,as,be viewed that,which,define,etc; (雅思

閱讀基本信號詞中最容易被忽視的一類)

　　E、肯定與否定類：but,however,yes,no,not,than,problem,difficulty,pressure,claim,(a)few, (a)little,more(less),任何負面詞匯，etc; (雅思閱讀基本信號詞中最容易被混淆的一類)

　　F、順序類：and(兩個以上)，then,also,previous,next,first,second,last,finally,order,sequence, “,”(兩個逗號同時使用或更多)，“→”，a,b,c排列，1，2，3排列，etc;

　　G、因果類：由“this”指示的前后句子，by,and,when,if,in order to結(jié)構(gòu)，because,since,as, effect,impact,conclusion,result,consequence,lead to,give rise to,etc.(雅思閱讀基本信號

詞中最常見的一類)

　　H、比較類：compare,comparison,positive and negative,adequate and inadequate,past and future,etc;

　　I、標點符號和特殊印刷類：引號“”，括號()，破折號——，斜體字，粗黑體字，任何大寫詞，縮寫詞等等;

　　J、方向、位置類：south,north,east,west,on the top of,on the bottom of,above,below,beneath, under,in the center of,in the middle of,between…and…,on the left(right)

of,behind,beyond,in the front of,over,here,there,against,on the surface of,near(to),etc;(雅思閱讀基本信號詞中最容易被忽視的一類)