题目内容
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Dr Carter says most speakers find presentations hard because
A．they have to speak to unfriendly audiences,
B．they have little experience of public speaking.
C．they are anxious about the technical equipment.
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更多“Dr Carter says most speakers f…”相关的问题
Dr Carter says he decided to improve his presentations because
A．he felt he was doing worse than his colleagues.
B．his boss expressed dissatisfaction with his performance.
C．he dislikes doing anything badly.
Section B
Directions: In this section, you will hear 3 short passages. At the end of each passage, you will hear some questions. Both the passage and the questions will be spoken only once. After you hear a question, you must choose the best answer from the four choices marked A, B, C and D.
听力原文： Thomas Tommy Carter is a plant scientist in North Carolina．He works for the Agricultural Research Service in the United States Department of Agriculture．He leads Team Drought，a group of researchers at five universities．They have been using conventional breeding methods to develop and test soybeans that can grow well under dry conditions.Tommy Carter started working on drought-resistant soybeans in 1981．His research has taken him as far as China,where soybeans have been grown for thousands of years．Farmers in the United States，however，have grown soybeans for only about a century．Tommy Carter says the soybeans they grow are for the most part genetically similar．More differences，or diversification，could better protect crops against climate changes that can reduce production．Those changes include water shortages which could increase from global warming．The Agriculture Department has a soybean germplasm collection，a collection of genetic material passed from one generation to the next．Members of Team Drought studied more than 2,500 examples from the collection．They looked at ones from the ancestral home of soybeans，Asia．They searched for germplasms that could keep plants from weakening during hot, dry summers in the United States.Tommy Carter says they found only five.But these drought-resistant lines,he says,produce four to eight bushels more than normal soybeans under drought conditions．The yield depends on location and environment．
What is the purpose of Tommy Carter's research？
A．To find the similarity of soybeans in the world.
B．To protect soybeans against dry condition.
C．To collect materials for their papers.
D．To study the impact of global warming.
To improve his own performance Dr Carter studied
A．books about public speaking.
B．the techniques of good presenters.
C．common mistakes made by speakers.
Why did Amy go to see Dr, Carter？
A．She was unwell.
B．She was worried,
C．She was stressed.
D．She was depresse
Dr Carter now recommends making a video recording of ______.
A．your practice presentation with colleagues present.
B．real presentations given by other people.
C．your practice presentation without an audience.
What does Dr Carter say about nervousness？
A．There is no effective way to control it.
B．Audiences don't think it's a major problem.
C．He was given the wrong advice about it.
What technique does Dr Carter recommend for reducing anxiety？
A．relaxing the face muscles
B．remembering a pleasant experience
C．practising deep breathing
Some of the major illnesses and conditions that aspirin or aspirin-like drugs might help prevent are. Alzheimer's disease, diabetes-related heart disease, heart attack, cancer and antibiotic-induced hearing loss.
The passage mainly discusses the effects of
A．health.
B．aspirin.
C．hearing loss.
D．heart attack.
What was the first change Dr Carter made to his preparation？
A．He began practising alone in a big room.
B．He got colleagues to listen to his performance.
C．He began to develop key parts of his presentation.
The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago. From diary entries and other personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. "The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark." By the 1950s and 1960s, that sleep schedule had been reduced dramatically, to between 7.5 and 8 hours, and most people had to wake to an alarm clock. "People cheat on their sleep, and they don't even realize they're doing it," says Dr David. "They think they're okay because they can get by on 6.5 hours, when they really need 7.5, 8 hours or even more to feel ideally vigorous."
Perhaps the most merciless rubber of sleep, researchers say, is the complexity of the day. When ever pressures from work, family, friends and community mount, many people consider sleep the least expensive item on his programme. "In our society, you're considered dynamic if you say you only need 5.5 hours' sleep. If you've got to get 8.5 hours, people think you lack drive and ambition."
To determine the consequences of sleep deficit, researchers have put subjects through a set of psychological and performance tests requiring them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. "We've found that if you're in sleep deficit, performance suffers," says Dr David. "Short-term memory is weakened, as are abilities to make decisions and to concentrate."
People in the 18th and 19th centuries used to sleep about 5 hours a night because they had ______.
A．no drive and ambition
B．no electric lighting
C．the best sleep habits
D．something to do in the evening
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