M: Did Bob's father use to smoke cigars before he got lung cancer?
F:Yes, he used to smoke cigars before he got lung cancer.
M: Did he try to put it off when he was told to quit?
F:Yes, he tried to put it off when he was told to quit.
M: Did he finally give up smoking cigars when he was in the hospital?
F:Yes, he finaliy gave up smoking cigars when he was in the hospital.
M: Did he look forward to smoking whenever he saw other people smoke?
F:Yes, he looked forward to smoking whenever he saw other people smoke.
M: Did he take up pipe smoking soon after he got out of the hospital?
F:Yes, he took up pipe smoking soon after he got out of the hospital.
M: Did he keep on smoking until the day he died?
F:Yes, he kept on smoking until the day he died.
下面我们再练习说明时间的从句. 练习的作法是老师用 when 提出一个 过去时态问题,比方"美国印地安人是什么时候开始种烟草的?"When did American Indians start growing tobacco?然后老师说:"哥伦布到美洲大陆以前" before Columbus came to America,你就回答说: They startedgrowing tobacco before Columbus came to America.老师也可能用 how long 提出现在完成时态问题,比方"烟草工业对美国经济具有重要性已经有多久了?"How long has the tobacco industry been important forAmerica's economy? 然后老师说:"自从殖民地时代农民种植烟草外销以来"eversincecolonial farmers grew tobacco for export.你就回答说:It has been importantfor America's economy ever since colonialfarmers grew tobaccofor export. 这组练习的内容跟美国烟草工业和美国人抽烟的情况有关系, 比方人们发现了某些疾病跟抽烟有关连以后,香烟公司就开始卖有过滤嘴的香烟,而政府也制定了一些有关抽烟的法规等等.在这组练习里你可以学到一些有用的词汇, 比方 "降低" decline, "制定"institute,"法规"regulation,"主要"major, "目标"aim, "牌子"brand,"过滤嘴"filter, "疾病"ailment等等. 这组练习比较难, 请你在回答问题之前特别注意听,每回答一句, 老师就会念出正确答案给你听.
M: When did American Indians start growing tobacco?
M: before Columbus came to America
F:They started growing tobacco before Columbus came to America.
M: How long has the American tobacco industry been large?
M: ever since colonial farmers grew tobacco in large quantities
F:It has been large ever since colonial farmers grew tobacco in large quantities.
M: How long has the tobacco industry been important for America's economy?
M: ever since colonial farmers grew tobacco for export
F:It has been important for America's economy ever since colonial farmers grewtobacco for export.
M: How long has cigarette smoking been popular in the U.S.?
M: since the 1800's
F:It has been popular in the U.S.since the 1800's.
M: When did the tobacco industry begin selling different brands of cigarettes?
M: When cigarettes smoking became popular
F:It began selling different brands of cigarettes when cigarette smoking became popular.
M: When did the tobacco industry begin selling cigarettes with filters?
M: after ailments were linked to smoking.
F:It began selling cigarettes with filters after ailments were linked to smoking.
M: How long has cigarette smoking been expensive?
M: since taxes on cigarettes were increased in the 1970's
F:It has been expensive since taxes on cigarettes were increased in the 1970's.
M: How long has physical fitness been a major aim of millions ofAmericans?
M: since the late 1970's
F:It has been a major aim of millions of Americans since the late 1970's.
M: When were regulations on cigarette smoking instituted?
M: after smoking was found to be dangerous to health
F:They were instituted after smokingwas found to be dangerous to health.
M: When did the number of smokers start to decline?
M: after people were warned that smoking was dangerous to health
F:The number startedtodecline after people were warned that smoking wasdangerous to health.
AmericanIndiansgrewandsmoked tobacco before Columbus came toAmerica.Thetobaccoindustryhasbeenlargeand important for America'seconomy ever since colonial farmers grew tobacco for export 300 years ago. Even today tobacco is grownin large quantities along America'sEastern Coast.Sincethe1800'sthemostcommonformofsmoking tobacco is in cigarettes.Menand womenofall agessmoke cigarettesandthere aredozensofbrandssoldinthe U.S.Nearlyall cigarettesnow sold have filters.Pipe smoking has some popularity and cigars are usually onlysmokedby oldermen.Over the past fifteen years, manypeoplehavestoppedsmoking.This movement awayfromcigarettesbeganwhenlungcancerandotherailments werelinkedtosmoking.In the 1970's when taxes on cigarettes were greatly increased, cigarette smoking became much more expensive.Since the late 1970's physical fitness has become a majoraim of millions of Americans.These three factors have been themajor causes for many people to stopsmoking.Today inthe U.S.cigarettesmokingisrestrictedinmanyways.When smokers are in restaurants, ontrains and in public buildings, they may smokeonlyin designatedareas.When they are on public buses,in theaters and in classrooms, they may not smoke at all.Cigarettesarenotadvertisedontelevision orradio. Anoticeis on every packageof cigarettes sold in America warning that smoking is dangerous to health. These regulations have reduced cigarettesmoking very much since they were instituted.Smokingis on the decline.
现在老师先把今天测验的三个问题念一遍给你听.
第一个问题是:
M: How is tobacco smoked in the U.S.?
第二个问题是:
M: What has caused many Americans to stop smoking?
第三个问题是:
M: What are some of the regulations on smoking in the U.S.?
现在老师用慢速度再把整篇文章念一遍给你听.
AmericanIndiansgrewandsmoked tobacco before Columbus came toAmerica.Thetobaccoindustryhasbeenlargeand important for America'seconomy ever since colonial farmers grew tobacco for export 300 years ago. Even today tobacco is grownin large quantities along America'sEastern Coast.Sincethe1800'sthemostcommonformofsmoking tobacco is in cigarettes.Menand womenofall agessmoke cigarettesandthere aredozensofbrandssoldinthe U.S.Nearlyall cigarettesnow sold have filters.Pipe smoking has some popularity and cigars are usually onlysmokedby oldermen.Over the past fifteen years, manypeoplehavestoppedsmoking.This movement awayfromcigarettesbeganwhenlungcancerandotherailments werelinkedtosmoking.In the 1970's when taxes on cigarettes were greatly increased, cigarette smoking became much more expensive.Since the late 1970's physical fitness has become a majoraim of millions of Americans.These three factors have been themajor causes for many people to stopsmoking.Today inthe U.S.cigarettesmokingisrestrictedinmanyways.When smokers are in restaurants, ontrains and in public buildings, they may smokeonlyin designatedareas.When they are on public buses,in theaters and in classrooms, they may not smoke at all.Cigarettesarenotadvertisedontelevision orradio. Anoticeis on every packageof cigarettes sold in America warning that smoking is dangerous to health. These regulations have reduced cigarettesmoking very much since they were instituted.Smokingis on the decline.
现在请你回答你刚才听过的三个问题. 每回答一个问题, 老师就会念出正确答案给你听.
第一个问题是:
M: How is tobacco smoked in the U.S.?
F:Tobacco is smoked in cigarettes, cigars and pipes.
第二个问题是:
M: What has caused many Americans to stop smoking?
F:Ailments,taxesoncigarettesandphysicalfitnesshave caused manyAmericans to stop smoking.
第三个问题是:
M: What are some of the regulations on smoking in the U.S.?
F:Smokers can onlysmokeindesignatedareas.Cigarettesarenotadvertisedon television or radio and people are warned that smoking is dangerous to health.