题目内容
（请给出正确答案）
In some parts of this city, missing a bus means ______ for another hour.
A．to wait
B．waiting
C．wait
D．to be waited
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Natural Medicine
Since earliest days, humans have used some kinds of medicines. We know this because humans have survived. Ancient treatments for injury and disease were successful enough to keep humans from dying out completely.
They were successful long before the time of modern medicine. Before the time of doctors with white coats and shiny (发亮的) instruments. Before the time of big hospitals with strange and wonderful equipment.
Many parts of the world still do not have university-educated doctors. Nor do they have expensive hospitals. Yet injuries are treated. And diseases are often cured, how？ By ancient methods.
By medicines that might seem mysterious, even magical (有魔力的). Traditional medicines are neither mysterious nor magical, however.
Through the centuries, tribal (部落的) medicine men experimented with plants. They found many useful chemicals in the plants. And scientists believe many of these traditional medicines may provide the cure for some of today's most serious diseases.
Experts say almost 80% of the people in the world use plants for health care. These natural medicines are used not just because people have no other form. of treatment. They are used because people trust them. In developed areas, few people think about the source of the medicines they buy in a store. Yet many widely-used medicines are from ancient sources, especially plants. Some experts say more than 25% of modem medicines come, in one way or another, from nature.
Scientists have long known that nature is really a chemical factory. All living things contain chemicals that help them survive. So scientists' interest in traditional medicine is not new. But it has become an urgent concern. This is because the earth's supply of natural medicines may be dropping rapidly.
The passage indicates that ancient treatments for injury and disease were______.
A．much more successful than modem ones
B．successful in all cases
C．successful enough for humans to survive
D．of little help to humans
91 Listening involves more than hearing sounds. The good listener
A. Repeats some of the things said
B. Finishes the speaker's sentences
C. Writes everything down
D. Nods his head frequently
Man: Is there anything I can do？ I'd like to help in some way if I can.
Woman: I can't think of anything at the moment.
Question: What does the woman mean？
A．She wants to help the man find the way.
B．She can't think of anything she wants to do for the man.
C．She is at a loss as to what to do at the moment.
D．She kindly declined the man's offer.
He is going to make a model plane, some old parts to help. ()
In some parts of the world, tea_______ with milk and sugar.
A．is serving
B．is served
C．serves
D．served
In some parts of the world, such as in England, tea ______ with milk and sugar.
A is serving
B serves
C is served
D served
Donkeys and camels are still widely used in some parts of the world as beasts of______.
A．cargo
B．freight
C．burden
D．lading
A．granted
B．sure
C．certain
D．pleasure
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