[单项选择]

Tobacco
You most likely know that tobacco is a plant. It has large leaves that have been smoked in many forms for at least 2 000 years. But do you know that:
Before the twentieth century, not many people died from using tobacco because there wasn’t much tobacco being used. Cigarettes had to be rolled by hand. A person who was really fast could roll about four cigarettes a minute, or around 2 000 a day. In 1884 the cigarette manufacturing machine was invented that could produce 120 000 cigarettes a day. Soon the number being sold rose to one billion a year. As a result of advertising and efficient machines, the tobacco business continued to grow. Today about 840 packs of cigarettes are sold every second in the US. That’s more than one million every hour! Imagine that! Blink you eyes and 840 packs are s01d. Blink again -- another 840 packs! As the number of cigarette sales increased, so did the number of deaths caused by cigarettes. Today one out of ever
A. a person could roll more cigarettes every day
B. there was more tobacco sold in markets
C. the cigarette manufacturing machine was invented and there were many tobacco advertisements
D. more women enjoyed smoking

[单项选择]

Tobacco
You most likely know that tobacco is a plant. It has large leaves that have been smoked in many forms for at least 2 000 years. But do you know that:
Before the twentieth century, not many people died from using tobacco because there wasn’t much tobacco being used. Cigarettes had to be rolled by hand. A person who was really fast could roll about four cigarettes a minute, or around 2 000 a day. In 1884 the cigarette manufacturing machine was invented that could produce 120 000 cigarettes a day. Soon the number being sold rose to one billion a year. As a result of advertising and efficient machines, the tobacco business continued to grow. Today about 840 packs of cigarettes are sold every second in the US. That’s more than one million every hour! Imagine that! Blink you eyes and 840 packs are s01d. Blink again -- another 840 packs! As the number of cigarette sales increased, so did the number of deaths caused by cigarettes. Today one out of ever
A. fifty
B. twenty
C. ten
D. fifteen

[单项选择] Tobacco
You most likely know that tobacco is a plant. It has large leaves that have been smoked in many forms for at least 2 000 years. But do you know that:
Before the twentieth century, not many people died from using tobacco because there wasn’t much tobacco being used. Cigarettes had to be rolled by hand. A person who was really fast could roll about four cigarettes a minute, or around 2 000 a day. In 1884 the cigarette manufacturing machine was invented that could produce 120 000 cigarettes a day. Soon the number being sold rose to one billion a year. As a result of advertising and efficient machines, the tobacco business continued to grow. Today about 840 packs of cigarettes are sold every second in the US. That’s more than one million every hour! Imagine that! Blink you eyes and 840 packs are s01d. Blink again -- another 840 packs! As the number of cigarette sales increased, so did the number of deaths caused by cigarettes. Today one out of every five people w
A. a person could roll more cigarettes every day
B. there was more tobacco sold in markets
C. the cigarette manufacturing machine was invented and there were many tobacco advertisements
D. more women enjoyed smoking

[单项选择]Where do you think the conversation most likely takes place
[A] In a restaurant．
[B] At the airport．
[C] In a travel agency．

[单项选择]Most shoppers know the feeling. You stand in front of piles of organic produce and wonder what those premium prices(溢价)are buying you over and above what you get from standard foods. Not a lot nutrition-wise, it seems. Organic farming may not even be more sustainable.
Understanding nutrition is, of course, vital when it comes to choosing food. In a report published last week, a team from the London School of Hygiene & Tropical Medicine examined 162 papers that compared organic and conventionally produced food. They concluded that there was no evidence to back up claims that organic food is more nutritious,
But this is only one of the aspects of organic food that shoppers care about, and things get even more complicated when other factors are brought into the equation. Many buy organic fruit and vegetables because they are not sprayed with pesticides. We know these can cause birth defects, cancer, and endocrine disruption (内分泌失调), and even the diabetes epidemic. But it remains
A. adopting crop rotation
B. not removing the weeds
C. always covering the fields
D. plowing too much