新英语四级改错练习题及答案.doc

新英语四级改错练****题及答案 Americansthisyearwillswallow15000tonsof aspirin, worldtoday, effectsarerelativelymild,anditischeap. Formillionsofpeoplesufferedfromarthrities, ,inshort,is trulythe20th- secondlargestsuicidedrugandistheleadingcauseof , relativelymild, pany in1899,ithasbeenaroundmuchlongerthanthat. Hippocrates,inancientGreece,understoodthemedicalvalue containsalicylates, 19thcentury, inEuropewiththischemical, ,aspirintabletswereavailable intheUnitedStates. Asmallquantityofaspirin(twofive-graintablets) feverbyinterferingwithsomeofthebody'sreactions. Specifically,aspirinseemstoslowdowntheformation plexchemical isnotfullyunderstood, iswellknown. 参考答案 ∧safest→the →medicine(or:drug) →suffering →though(or:although) →am