必备同义词替换段落中的连接词同样地 Likewise同时 Meanwhile并且 Moreover但是 However whereas相反 Conversely相比之下 By comparison in contrast compared with sth词义 词性 同义词展示、提供（首句谓语动词） Vt. Show describe indicate illustrate provide占百分之多少 vt Account for make up provide represent趋势 n Trend tendency数据 n Number data figure百分比，比例 n Percentage proportion类别 n Category type kind group数字前修饰少于（将近） Just below almost大约 About around approximately多于 Over above more than分数表达一半 a half三分之一 One-third三分之二 Two-thirds四分之一 a quarter四分之三 Three-quarters九个当中有一个 One in nineNearly half of the children dropped out of school in the village.More than seven in ten teachers have university degrees.四大趋势的描述表示增加IncreaseThere was a gradual/dramatic/ sharp increase in computer use in all categories.表示下降DecreaseThe number of male smokers decreased from 21% in 1960 to 17% in 2000.表示波动FluctuationThere was a minor fluctuation between 1930 and 1950 in India.表示不变steadinessThe numbers remained steady throughout the twenty-year period.更多灵活表达：TrendsNounsa risean increasea growtha surgea decreasea declinea falla dropa peaka bottomthe highest/lowest pointa period of stability/steadinessa fluctuationa variationVerb Rose Decrease peaked stabilized Fluctuateds IncreasedGrewWent updDeclinedFelldroppedvariedPhrasesShowed an upward trend/tendencyShowed a downward tend/tendencyReached a peak Reached the bottomRemained stable/constant/steadyShowed some fluctuation/variation三大核心句型主语（The number of）+谓（increased/decreased）+fromtoThe number of male smokers decreased from 21% in 1960 to 17% in 2000.The number increased dramatically and then peaked at 400 in 1990.The number of marriages remained stable at this level over the next decade.The average income of the staff increased by 50 percent compared with last year.During this 25-year period the consumption of beef and lamb fell dramatically to approximately 100 grams and 55 grams respectively.