6、garettesbecause________.A.smokingdoesgoodtotheirhealthB.thenicotinegoesrightintothebloodstreamandmakespeoplefeelrelaxedC.theyliketoseesmokecomeoutoftheirmouthsandnosesD.theyneedtogetsometarfromcigarettes答案与解析 B 推理判断题。由文章第一段第三、四句可知,B项是人对烟有瘾的原因之一。2.Whatsubsta
7、nceincigarettescausescancer?A.Nicotine.B.Tar.C.Thepassagedoesn'ttellus.D.Bloodstream.答案与解析 B 细节理解题。由第二段中“...itisthetarthatcausescancer...”可知。3.Theunderlinedword“flicking”inthefirstparagraphmeans________.A.轻吹B.吐出C.轻弹D.吹掉答案与解析 C 词义猜测题。由文中“flickingtheashes”(弹掉
8、烟灰)可以推断出正确答案。4.Healthexpertsaretryingtopersuadepeopleto________.A.smokelessadayB.stopsmokingcompletelyC.buycigaretteswithlesstarD.smokeonlythreecigarettesaday答案与解析 B 细节理解题。由文中第二段的“...giveupsmokingcompl