下面我們再用同樣方式作一組練習復習動詞詞組和表明時間的從句. 練習的 內容是說鮑勃的父親在得肺癌之前老是抽雪茄, 后來住院的時候戒了, 出院 以后又改抽煙斗的事情. 請你根據問題作肯定的答覆. 回答之后請你聽老師 念正確答案.

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.

下面我們再練習說明時間的從句. 練習的作法是老師用 when 提出一個 過去 時態(tài)問題,比方"美國印地安人是什么時候開始種煙草的?"When did American Indians start growing tobacco? 然后老師說: "哥倫布到美洲大陸以前" before Columbus came to America, 你就回答說: They started growing tobacco before Columbus came to America. 老師也可能用 how long 提出現在完成時態(tài)問題, 比方"煙草工業(yè)對美國經濟具有重要性已經有多久了?" How long has the tobacco industry been important for America's economy? 然后老師說:"自從殖 民地時代農民種植煙草外銷以來" ever since colonial farmers grew tobacco for export.你就回答說:It has been important for America's economy ever since colonial farmers grew tobacco for export. 這組練習的內容跟美國煙草工業(yè)和 美國人抽煙的情況有關系, 比方人們發(fā)現了某些疾病跟抽煙有關連以后, 香 煙公司就開始賣有過濾嘴的香煙, 而政府也制定了一些有關抽煙的法規(guī)等 等. 在這組練習里你可以學到一些有用的詞匯, 比方 "降低" decline, "制定" institute, "法規(guī)" regulation, "主要" major, "目標"aim, "牌子"brand,"過濾嘴" filter, "疾病"ailment等等. 這組練習比較難, 請你在回答問題之前特別注意聽, 每回答一句, 老師就會念出正確答案給你聽.

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 grew tobacco 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 of Americans?

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 smoking was 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 started to decline after people were warned that smoking was dangerous to health.

《中級美國英語Lesson39:時間從句抽煙與戒煙》永久閱讀地址: http://www.jiazhineng.cn/yingyu/656/