题目内容

_______ ninety-nine percent of the panda’s diet is bamboo, it also eats corn,

apples and sweet potatoes.

 A. If              B. While        C. Because              D. Since

练习册系列答案
相关题目


Silence is unnatural to man. He begins life with a cry and ends it in stillness. In between he does all he can to make a noise in the world, and he fears silence more than anything else. Even his conversation is an attempt to prevent a fearful silence. If he is introduced to another person, and a number of pauses occur in the conversation, he regards himself as a failure, a worthless person, and is full of envy of the emptiest-headed chatterbox. He knows that ninety nine percent of human conversation means no more than the buzzing of a fly, but he is anxious to join in the buzz and to prove that he is a man and not a waxwork figure(蜡塑人像).
The aim of conversation is not, for the most part, to communicate ideas; it is to keep up the buzzing sound. There are, it must be admitted, different qualities of buzz; there is even a buzz that is as annoying as the continuous noise made by a mosquito(蚊子). But at a dinner party one would rather be a mosquito than a quiet person. Most buzzing, fortunately, is pleasant to the ear, and some of it is pleasant even to the mind. He would be a foolish man if he waited until he had a wise thought to take pert in the buzzing with his neighbors.
Those who hate to pick up the weather as a conversational opening seem to me not to know the reason why human beings wish to talk. Very few human beings join in a conversation in the hope of learning anything new. Some of them are content if they are merely allowed to go on making a noise into other people’s ears, though they have nothing to tell them except that they have seen two or three new plays or that they had food in a Swiss hotel. At the end of an evening during which they have said nothing meaningful for a long time, they just prove themselves to be successful conversationists.
72. According to the author, people make conversation to _________.
A. exchange ideas                                      B. prove their value
C. achieve success in life                                   D. overcome their fear of silence
73. By “the buzzing of a fly” (Para. 1),the author means “_________”.
A. the noise of an insect                             B. a low whispering sound
C. meaningless talks                                         D. the voice of a chatterbox
74. According to the passage, people usually talk to their neighbors _________.
A. about whatever they have prepared         B. about whatever they want to
C. in the hope of learning something new    D. in the hope of getting on well
75. What is the author’s purpose in writing the passage?
A. To discuss why people like talking about weather
B. To encourage people to join in conversations
C. To persuade people to stop making noises
D. To explain why people keep talking


In nineteen ninety-nine, twelve percent of public elementary schools in the United States required students to wear uniforms. Just three years later, estimates were almost double that.
A study of six big-city Ohio public schools showed students who were required to wear uniforms had improved graduation, behavior and attendance rates. Academic performance was unchanged.
Some middle and high schools in Texas have also joined the movement. Yet studies find mixed results from requiring uniforms. And some schools have turned away from such policies.
Supporters believe dressing the same creates a better learning environment and safer schools. The school district in Long Beach, California, was the first in the country to require uniforms in all elementary and middle schools. The example helped build national interest in uniforms as a way to deal with school violence and improve learning.
Findings in Long Beach suggested that the policy resulted in fewer behavior problems and better attendance. But researcher Viktoria Stamison, who has looked at those findings, says they were based only on opinions about the effects of uniforms.
She says other steps taken at the same time to improve schools in Long Beach and statewide could have influenced the findings. The district increased punishments for misbehavior. And California passed a law to reduce class sizes.
In Florida, for example, researcher Sharon Pate found that uniforms seemed to improve behavior and reduce violence. In Texas, Eloise Hughes found fewer discipline problems among students required to wear uniforms, but no effect on attendance.
Sociologist David Brunsma has studied school uniform policies since nineteen ninety-eight. He collected the reports in the book. In his own study, he found that reading and mathematics performance dropped after a school in rural Pennsylvania required uniforms.
Political and community pressures may persuade schools to go to uniforms to improve learning. But David Brunsma and others believe there is not enough evidence of a direct relationship. In fact, he says requiring uniforms may even increase discipline problems.
52. What’s the main idea of this passage?
A. More and more students are required to wear uniforms in the US.
B. Wearing uniforms contributes to good academic performance.
C. Researchers in the US argue for school uniform policies.
D. Evidence for school uniform policies in the US is seen as weak.
53. Which was/were the first in the US to require uniforms in all elementary and middle schools?
A. Six big-city Ohio public schools.
B. The school district in Long Beach, California.
C. Some middle and high schools in Texas.
D. Some elementary and middle schools in Florida.
54. Which of the following researchers are NOT supporters of school uniform policies?
A. Viktoria Stamison and Sharon Pate.  
B. Sharon Pate and David Brunsma.
C. Eloise Hughes and Sharon Pate.  
D. Viktoria Stamison and David Brunsma.
55. The underlined word “misbehavior” in the sixth paragraph probably means ______.
A. serious crime            B. bad performance
C. absence for class       D. action against wearing uniforms
56. We can infer from the passage that ______.
A. more work is needed to get better information about uniform’s effect
B. the number of schools requiring uniforms in the US will decline sharply
C. wearing uniforms has little to do with behavior and learning
D. politicians and communities won’t vote for uniform policies

Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States.

The result: thirteen percent fewer heart attacks. Eight percent fewer strokes. Four percent fewer deaths. Eleven percent fewer new cases of heart disease. And two hundred forty billion dollars in health care savings.

Researchers found it could prevent one hundred thousand heart attacks and ninety-two thousand deaths every year.

The study is in the New England Journal of Medicine. Kirsten, at the University of California, was the lead author. She says people would not even notice a difference in taste with three grams, or one-half teaspoon, less salt per day. The team also included researchers at Stanford and Columbia University.

Each gram of salt contains four hundred milligrams of sodium, which is how foods may list their salt content.

The government says the average American man eats ten grams of salt a day. The American Heart Association advises no more than three grams for healthy people. It says salt in the American diet has increased fifty percent since the nineteen seventies, while blood pressures have also risen. Less salt can mean a lower blood pressure.

New York City Mayor Michael Bloomberg is leading an effort called the National Salt Reduction Initiative. The idea is to put pressure on food companies and restaurants.

Mayor Bloomberg has already succeeded in other areas, like requiring fast food places in the city to list calorie information. Now a study by the Seattle Children's Research Institute shows how that idea can influence what parents order for their children.

Ninety-nine parents of three to six year olds took part. Half had McDonald's menus clearly showing how many calories were in each food. The other half got menus without the calorie information.

1. How many heart attacks will occur in the US every year? 

A. nearly 800,000.                           B. 24,000.       

C. 100,000.                                  D. 92,000.

2. We can learn from the passage that         .  

A. Americans ate no more than 5 grams of salt per day in the 1970s

B. the American Heart Association suggest less than 3 grams of salt every day

C. a reduction in salt in the diet helps lower blood pressure

D. all the heart diseases result from eating more salt

3.The National Salt Reduction Initiative aims to         

A. advise Americans to eat less salt

B. put pressure on food companies and restaurants

C. require fast food places to list calorie information

D. attract the public attention to the problem

4.All the following are related to the salt in diet except         .  

A. strokes                                   B. heart attacks        

C. blood pressures                           D. stomach diseases

5.The best title of the passage of the passage is         

A. Less salt can mean more life

B. Prevent heart attacks and deaths

C. The National Salt Reduction Initiative

D. Americans should eat less salt

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网