单选题At the beginning of the 20th century, people made coffee ______ a cloth bag full of coffee grounds into boiling water.A by dumpingB to dump C for dumping D that dumped

Practice 7　　When people argue about whether coffee is good for health, they're usually thinking of the health of the coffee drinker. Is it food for your heart? Does it increase blood pressure? Does it help you concentrate? However, coffee affects the health of the human population in other ways, too.　　Traditionally, coffee bushes were planted under the canopy (树冠) of taller indigenous (土生土长的) trees. However, more and more farmers in Latin America are deforesting the land to grow full-sun coffees. At first, this increases production because more coffee bushes can be planted if there aren’t any trees. With increased production come increased profits.　　Unfortunately, deforesting for coffee production immediately decreases local-wildlife habitat. Native birds nest and hide from predators (捕食者) in the tall trees and migrating birds rest there.　　Furthermore, in the long term, the full-sun method also damages the ecosystem because more chemical fertilizers and pesticides are needed to grow the coffee. The fertilizers and pesticides kill insects that eat coffee plant, but then the birds eat the poisoned insects and also die. The chemicals kill or sicken other animals as well, and can even enter the water that people will eventually drink.　　Fortunately, farmers in Central and South America are beginning to grow more coffee bushes in the shade. We can support these farmers by buying coffee with such labels as "shade grown" and "bird friendly." Sure, these varieties might cost a little more. But we're paying for the health of the birds, the land, ourselves, and the planet. I think it's worth it.

The research into the healing properties of lavender was being carried out at the beginning of 20th century.

Passage 1　　Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened between. As was discussed before, it was not  1 the 19th century that the newspaper became the dominant pre-electronic medium, following in the wake of the pamphlet and the book and in the company of the periodical. It was during the same time that the communications revolution speeded  2 , beginning  3 transport, the railway, and leading on through the telegraph, the telephone, radio, and motion pictures into the 20th-century world  4 the motor car and the airplane. Not everyone sees that  5 in perspective.　　It is generally recognized, however, that the introduction of the computer in the early 20th century, followed  6 the invention of the integrated circuit during the 1960s, radically changed the process,  7 its impact  8 the media was not immediately apparent.  9 time went by, computers became smaller and more powerful, and they became “personal” too, as  10 as institutional, with display becoming sharper and storage capacity  11 . They were thought of, like people, in terms of generations, with the distance between generations much smaller.　　It was within the computer age that the term “information society” began to be widely used to describe the context 12 we now live. The communications revolution has  13 both work and leisure and how we think and feel both about place and time,  14 there have been controversial views about its economic, political, social and cultural implications. “Benefits” have been weighed  15 “harmful” outcomes. And generalizations have proved difficult.

Which of the following is INCORRECT according to the passage?

Practice 2　　Talk about fanciful thinking. One might as well ask if there will be a war that will end all wars, or a pill that will make us all good-looking. It is also a perfectly understandable question, given that half a million Americans will die this year of a disorder that is often discussed in terms that make it seem less like a disease than an unconquerable enemy.　　What tuberculosis was to the 19th century, cancer is to the 20th: an malevolent force that frightens people beyond all reason far more than, say, diabetes or high blood pressure. The welcome boom in cancer drugs owes its beginning to one of the 20th century’s greatest scientific insights: that cancer is caused not by depression or deteriorating environment or sexual repression, but by faulty genes. Every tumor begins with just one errant cell that has been unlucky enough to suffer at least two, but sometimes several, genetic mutations. Those mutations cause the cell to replicate wildly, allowing it to escape the control that genes normally maintain over the growth of new tissue. This realization has transformed cancer, in little more than a decade, from an utterly mysterious disease into a disorder whose molecular machinery is largely understood. This new view has sparked innovations that will manage the process and keep it from killing large numbers of people.

Which of the following best explores American dream in the 20th century? _____

Throughout the eighteenth century, coffee houses were once forced to close because they encouraged the free speech.____

At the beginning of the 20th century, people made coffee ______ a cloth bag full of coffee grounds into boiling water.

At the beginning of the 20th century, people made coffee _____ a cloth bag full of coffee grounds into boiling water.

Why did people stop in Dubai in the early 20th century?

When does the speaker say that another significant change in instrument design took place?