What were the effects of the decision she made? A) reasons B)results C) cau
What were the effects of the decision she made?
A) reasons
B)results
C) causes
D)bases
What were the effects of the decision she made?
A) reasons
B)results
C) causes
D)bases
(1)国内价格将是多少?
(2)国内生产者和消费者的损益各为多少?
(3)对无谓损失和国外生产者会产生什么影响?
Example 9.5 (page 308 ) describes the effects of the sugar quota. In 2005 , imports were limited to 5.3 billion pounds , which pushed the domestic price to 27 cents per pound. Suppose imports were expanded to 10 billion pounds.
a What would be the new U. S. domestic price?
b. How much would consumers gain and domestic producers lose?
c. What would be the effect on deadweight loss and foreign producers?
The idea arose because of the 【B4】 behavior. of the women in the plant. According to 【B5】 of the experiments, their hourly output rose when lighting was increased, but also when it was dimmed. It did not 【B6】 what was done in the experiment; 【B7】 something was changed, productivity rose. A(n) 【B8】 that they were being experimented upon seemed to be 【B9】 to alter workers' behavior. 【B10】 itself.
After several decades, the same data were 【B11】 to econometric analysis. The Hawthorne experiments had another surprise in store. 【B12】 the descriptions on record, no systematic 【B13】 was found that levels of productivity were related to changes in lighting.
It turns out that the peculiar way of conducting the experiments may have led to 【B14】 interpretations of what happened. 【B15】 , lighting was always changed on a Sunday. When work started again on Monday, output 【B16】 rose compared with the previous Saturday and 【B17】 to rise for the next couple of days. 【B18】, a comparison with data for weeks when there was no experimentation showed that output always went up on Mondays. Workers 【B19】 to be diligent for the first few days of the week in any case, before 【B20】 a plateau and then slackening off. This suggests that the alleged "Hawthorne effect" is hard to pin down.
【B1】
A.affected
B.achieved
C.extracted
D.restored
The results of the test show that______.
A.breakfast has great effect on work and studies
B.breakfast has much to do with people's health
C.a person will work better if he has simple breakfast
D.breakfast only affects those who work with their brains
6、What’s this passage about?()
A.France
B.King Louis
C.The French Revolution
D.Europe
7、Which did not happen in 1789?()
A.The French Revolution broke out
B.The national economy was developing rapidly
C.The government wasn’t well run
D.King Louis XIV was in power
8、Where were the political prisoners kept?()
A.In Versailles.
B.In Austria.
C.In Prussia.
D.In Bastille.
9、What does the underlined word “abolished” mean?()
A.Put off
B.Established
C.United
D.Ended
10、What was NOT the effect of the Revolution?()
A.July 14 has become the French National Day
B.It brought some impact on the other European Kings
C.Louis’s wife, Marie was killed
D.The king tried to control the national parliament
A recent survey of over 16,000 children made by the National Child Development Study in London revealed that children whose fathers came to school conferences and accompanied their children on outing did measurably better in school than those children whose fathers were not involved in those activities. The study, which monitored children born during a week in March, 1992, from the time of their birth through the years of their early schooling, further revealed that the children of actively involved fathers scored much higher in reading and math than those children whose only involved parent was the mother. The purpose of the study was to evaluate the role played by fathers in the raising of a child. It indicated a much higher level of parental involvement by the father than had been anticipated. Over 66% of the fathers were said to have played a major role in parental responsibility.
The study also suggested that the greatest level of paternal parenting took place in the families of only child. As the number of children and financial obligations increased, the father’s apparent intere4st and involvement with the children decreased. However, no matter what the size or financial condition of the family is, a father’s active participation in the child’s development made a definite difference in the child’s progress.
The study further revealed that while the frequency of overnight absences reflected a corresponding deficiency of the child’s level in math and reading, a father’s employment on night shifts appeared to have little effect on the child’s academic progress. The data from the study were obtained primarily through interviews from parents, teachers and physicians. The information evaluating the level of the father’s parenting performance was elicited primarily form. the admittedly subjective observations of the tier wives.
1. What is the main discovery made in the study?
A. A father’s influence played a significance role in the level of the child’s academic progress.
B. A much higher level of parental involvement of the father.
C. A father’s employment on night shifts appeared to have little effect on the child’s academic progress.
D. The greatest level of paternal parenting took place in the families of only child.
2. Which of the following statements is TRUE according to the passage?
A. Children whose fathers did not come to school conferences or accompany them on outing did better than those whose fathers were involved in those activities.
B. The more children a family has, the more interest and involvement the father has.
C. Children who have actively involved fathers did much better academically than those whose only involved parent was the mother.
D. The more overnight absences the father has, the worse the child’s level in math and chemistry is.
3. What’s the aim of the study?
A. To evaluate fathers’ abilities in involving in children’s activities.
B. To reveal fathers’ role in bringing up a child.
C. To compare children from large families with children from small ones.
D. To explain the differences between mothers’ and fathers’ role in raising a child.
4. Evidence indicated that fathers who were involved in the parenting process amounted to ().
A. more than three-quarters of all the fathers
B. slightly less than half of the fathers studied
C. a little less than one hundred percent of all fathers
D. about two-thirds of the fathers involved in the study
5. The data accumulated were obtained through ().
A. interviews, school records and physicians’ reports
B. conversations with mothers of the children
C. observations by social psychologists
D. observations of fathers with their children
In agriculture, the transformation was marked by the emergence of the grain elevators, the cotton presses, the warehouses, and the commodity exchanges that seemed to so many of the nation's farmers the visible sign of a vast conspiracy against them. In manufacturing, the transformation was marked by the emergence of a "new factory system" in which plants became larger, more complex, and more systematically organized and managed. And in distribution, the transformation was marked by the emergence of the jobber(中间商), the wholesaler, and 'the mass retailer(零售商). These changes radically altered the nature of work during the half century between 1870 and 1920.
To be sure, there were still small workshops, where skilled craftspeople manufactured products ranging from newspapers to cabinets to plumbing fixtures. There were the sweatshops in city tenements, where groups of men and women in household settings manufactured clothing or cigars on a piecework basis. And there were factories in occupations such as metalwork where individual contractors presided over what were essentially handicraft proprietorships that coexisted within a single building. But as the number of wage earners in manufacturing rose from 2.7 million in 1888 to 4.5 million in 1900 to 8.4 million in 1920, the number of huge plants like the Baldwin Locomotive Works in Philadelphia burgeoned (迅速成长), as did the size of average plant. (The Baldwin Works had 600 employees in 1855, 3,000 in 1875, and 8,000 in 1900.) By 1920, at least in the northeastern United States where most of the nation's manufacturing wage earners were concentrated, three-quarters of those worked in factories with more than 100 employees and 30 percent worked in factories with more than 100 employees.
What can be inferred from the passage about the agricultural sector of the economy after the Civil War?______
A.New technological developments had little effect on farmers
B.The percentage of the total population working in agriculture declined
C.Many farms destroyed in the war were rebuilt after the war
D.Farmers achieved new, prosperity because of better rural transportation
If there were no greenhouse effect, ______.
A.no plants would grow on our planet
B.earth would be thirty degrees colder
C.man could not live on the earth
D.all of the above answers are correct
Once people believed it was 19) that the human brain was fully developed by the age of three. According to this theory, teenager behaviors like risk-taking, a lack of sensitivity to how their actions 20)both themselves and others, increased aggressive deeds, 21) concentration and a negative attitude were thought to be due to bad parenting or changes in body chemistry.
However, new technology has allowed researchers to examine the healthy brain at work. What they have discovered is something 22) : Not only does the brain continue to grow beyond the age of three, but the research also23) that the brain of a teenager is larger than that of an adult.
As teen brains are 24) with chemicals during adolescence phase, the brain grows. However, only the cells that are used the most will 25) the competition within the brain. Those that are used less begin to die off until the brain reaches what will be its adult size.
The way that teens spend their time 26) influences which connections remain and which disappear. On the basis of this knowledge, experts advise parents to be 27) on how their teenagers spend their time. What teens do today will affect their brains for the rest of their lives.
A) diminished
B) demonstrated
C) alert
D) radical
E) surrender
F) survive
G) affirms
H) afford
I) affect
J) effect
K) soaked
L) soaped
M) sensitive
N) sensible
O) somehow
【C1】
A.hurt
B.pain
C.harm
D.work
Another example of the world appearing to slow down is when you are hanging on the phone waiting for someone to pick up at the other end. If your attention wanders while you're waiting, then suddenly switches back,you will probably hear what seems like a longer than usual silence before hearing the dialling tone again. For you, time will have momentarily slowed.
To see how our perception of time changes when something new happens, Vincent Walsh and his colleagues put headphones on volunteers and played eight beeps to their right ears. The gap between each beep was exactly i second, except for the gap between the fourth and fifth beeps, which the scientists could make shorter or longer. They altered the length of this gap until the volunteers estimated it was the same length as the other gaps. The researchers found that, on average, people judge a second slightly short, at 955 milliseconds.
In the second part of the experiment, the first four beeps were played to the subjects' right ear, but the other four were then played to their left. Again, the volunteers were asked to estimate when the gap between the fourth and fifth beeps was the same as the others. This time they judged a second to be even shorter at 825 milliseconds long.
Perceiving a second to be much shorter than it is makes you feel as though the world has gone into slow motion, since less happens in that slice of time. Walsh thinks the effect could have evolved to give us a fraction more time to react to potentially threatening events.
Last year, Kielan Yarrow, a British psychologist found a similar effect with vision. When you glance at a clock, the first second will seem longer than it really is.
Yarrow's results showed that time appeared to slow down by a similar amount as Walsh found. Previous studies have shown that cooling the body slows down our perception of time while warming it up has the opposite effect.
After you noticed a car hurtling towards you, you might feel that ______.
A.the world around you had slowed down
B.something bad was going to happen
C.life had suddenly become meaningless
D.people's life was so fragile
Researchers from Yale and the University of Connecticut followed 600 middle-schoolstudents as they developed from fifth to seventh grade, nothing their weight and if they had zerobreakfast, breakfast either at home or at school, or breakfast in both places. They found thatweight gain among second-breakfast eaters was no different from the average gain seen amongall students. Children who didn ’t eat breakfast, or ate it only sometimes, were more likely to beoverweight than double-breakfasters. It should be noted that only about one in ten children inthe study ate two breakfasts.
The study wasn’t designed to figure out why this might be true, but the researchers havesome theories: that people who don ’t eat breakfast (or any meal) might overeat later in the day,and that as people become obese, they tend to reduce calories (热量) by having no breakfast.
Yes, school breakfasts are more like a healthy snack(零食) than a full meal, and growingteens can eat a large amount of food. But if you ’re still not eating breakfast because you think itgives you more colories, you are not only mistaken, but you are also missing out one of life ’s greatpleasures.
What do we know about the research according to Paragraph 1?
A.It was about the effect of dinner on weight gain.
B.Its result was opposite to the author’s opinion.
C.It was done on overweight school children.
D.Its result might also be true of adults.
Which of the following is true according to Paragraph 2?A.About 90% of the children in the study had two breakfasts a day.
B.About 90% of the children in the study had one breakfast a day.
C.About 10% of the children in the study had two breakfasts a day.
D.About 10% of the children in the study had no breakfast at all.
What does the underlined word obese mean in Paragraph 3?A.Overweight.
B.Strong.
C.Tall.
D.Hungry.
According to the researchers, some people don’t eat breakfast because _____.A.they have no time
B.they prefer snacks
C.they want to keep fit
D.they want to eat more at lunch
What is the best title of this passage?A.Breakfast and School Performance
B.Breakfast and Weight Gain
C.Breakfast and Life Pleasure
D.Breakfast and Snacks