Mr．Smith.who helps passers-by repair their kites.said that what he did was not paid but ．( )A．relevantB．optionalC．randomD．voluntary 题目和参考答案——青夏教育精英家教网—

题目内容

9．Mr．Smith，who helps passers-by repair their kites，said that what he did was not paid but _______．（　　）

A．

relevant

B．

optional

C．

random

D．

voluntary

分析斯密斯先生帮助路人修风筝；他说他所做的不是受报酬的，而是志愿的．

解答答案是D．本题考查形容词辨析；relevant相关的；optional可选择的；random随机的；voluntary志愿的；与上文的not paid相对，说明他所做的是"志愿的"免费服务，故选D．

点评辨析形容词要在识记常见形容词及其搭配的基础上理解语境，根据具体语境推断合理的答案

练习册系列答案

20．What makes one person more intelligent than another？What makes one person a genius，like the brilliant Albert Einstein，and another person a fool？Are people born intelligent or stupid，or is intelligence the result of where and how you live？These are very old questions and the answers to them are still not clear．
We know，however，that just being born with a good mind is not enough．In some ways，the mind is like a leg or an arm muscle．It needs exercise．Mental exercise is particularly important for young children．Many child psychologists （心理学家） think that parents should play with their children more often and give them problems to think about．The children are then more likely to grow up bright and intelligent．If，on the other hand，children are left alone a great deal with nothing to do，they are more likely to become dull and unintelligent．
Parents should also be careful with what they say to young children．According to some psychologists，if parents are always telling a child that he or she is a fool or an idiot，then the child is more likely to keep doing silly and foolish things．So it is probably better for parents to say very positive things to their children，such as"That was a very clever thing you did．"or"You are such a smart child．"
31．The words"intelligent"and"brilliant"in the first paragraph probably meanA while"dull"in the second paragraph meansA．
A．bright and splendid； slow in thinking and understanding
B．pretty and handsome； ordinary-looking
C．great and important； common
D．hopeful and helpful； careless
32．According to the context we can guess that a genius isC while an idiot isC．
A．a normal person； a funny person
B．a strong person； a weak person
C．a highly intelligent person； a foolish or weak-minded person
D．a famous person； an ordinary person
33．A personD is more likely to become a genius．
A．whose parents are clever
B．often thinking about difficult problems
C．often helped by his parents and teachers
D．born with a good brain and putting it into active use
34．It is better for parentsA．
A．to praise and encourage their children more often
B．to be hard on their children
C．to leave their children alone with nothing to do
D．to give their children as much help as possible
35．Which of the following is NOT true according to the article？C
A．Parents play an important part in their children's growth．
B．The less you use your mind the duller you may become．
C．Intelligence is obviously the result of where and how you live．
D．What makes a person bright or stupid is still under discussion．

17．PALO AITO，California-"Switching off the television may help prevent children from getting fatter-even if they do not change their diet or increase the amount they exercise，"US researchers said last week．
A study of 192third and fourth grades，generally aged eight and nine，found that children who cut the number of hours spent watching television gained nearly two pounds（0.91kg） less over a one-year period than those who did not change their television diet．
"The findings are important because they show that weight loss can only be the result of a reduction in television viewing and not any other activity，"said Thomas Robinson，a pediatrician（儿科专家） at Stanford University．
"American children spend an average of more than four hours per day watching television and videos or playing games，and rates of childhood being very fat have doubled over the past 20years，"Robinson said．
In the study，presented this week to the Pediatric Academic Societies'annual meeting in San Francisco，the researchers persuaded about 100of the students to reduce their television viewing by one-quarter to one-third．
Children watching fewer hours of television showed a significantly smaller increase in waist size and had less body fat than other students who continue their normal television viewing，even though neither group ate a special diet nor took part in any extra exercise．
"One explanation for the weight loss could be the children unstuck to the television may simply have been moving around and burning off calories，"Robinson said．
"Another reason might be due to eating fewer meals in front of the television．Some studies have suggested that eating in front of the TV encourages people to eat more，"Robinson added．
51．The purpose of the first two paragraphs isD．
A．to report the time children spend watching TV
B．to show that more TV time leads to getting fatter
C．to tell us the best way to reduce weight
D．to introduce the background of the research
52．According to the passage，the time American children usually spend on watching TVA．
A．is more than four hours a day
B．is less than four hours a day
C．doubled in the last twenty years
D．is more than on any other activities
53．The time the 100children spend on TV every day is aboutC in the study．
A．a quarter of an hour
B．four hours
C．three hours
D．one hour
54．Which of the following statements is TRUE according to the passage？B
A．Weight increase owes to the result of a reduction in TV viewing．
B．The percentage of children getting fatter has doubled in the last 20years．
C．Children usually eat less while watching TV．
D．Children usually eat nothing while watching TV．
55．The main idea of the passage would beA．
A．less TV time helps reduce children's weight
B．fewer meals is a must in reducing children's weight
C．the less you eat，the thinner you will be
D．more exercise is of great benefit to reduce weight．

4．Some people will do just about anything to save money．And I am one of them．Take my family's last vacation for example．It was my six-year-old son's winter break from school，and we were heading home from Fort Lauderdale after a weeklong trip．The flight was overbooked，and Delta，the airline，offered us 400 per person in credits to give up our seats and leave the next day．I had a meeting in New York，So I had to get back．But that didn't mean my husband and my son couldn't stay．So I took off for home．The next day my husband and son were offered more credits to take an even later flight．
Yes，I encouraged一okay，ordered一 them to wait it out at the airport，to"earn"more Delta Dollars．Our total take：1，600．Not bad，huh？Now some people may think I'm a bad mother and not such a great wife either．But as a big-time bargain hunter，I know the value of a dollar．And these days，a good deal is something few of us can afford to pass up．
I've made living looking for the best deals and exposing the worst tricks．I have been the consumer reporter of NBC's Today show for over a decade．I have written a lot of books including one titled Tricks of the Trade：A Consumer Survival Guide．And I really do what I believe in．I tell you this because there is no shame in getting your money's worth．I'm also tightfisted（小气的） when it comes to shoes，clothes for my children，and expensive restaurants．But I wouldn't hesitate to spend on a good haircut．It keeps its longer，and it's the first thing people notice．And I will also spend on a classic piece of furniture．Quality lasts．
51．Why did Delta give the author's family credits？A
A．They took a later flight．
B．They had early bookings．
C．Their flight had been delayed．
D．Their flight had been cancelled．
52．What can we learn about the author？C
A．She seldom makes a compromise．
B．She is very strict with her children．
C．She rarely misses a good deal．
D．She is interested in cheap products．
53．What does the author do？D
A．She's a teacher．
B．She's a housewife．
C．She's a businesswoman．
D．She's a media person．
54．What does the author want to tell us？A
A．How to spend money wisely，
B．How to expose bad tricks．
C．How to reserve airline seats．
D．How to make a business deal．

14．The other day Icame across （偶然遇见） one of my good friends in the street，whom I hadn't seen for years．

1．While most people consider that laughter is one of the nature's great treatments for a whole range of mental and physical diseases，it is still a serious scientific subject that researchers are trying to figure out．
"Laughter is social．"says Robert R．Provine，author of the book"Laughter：A Scientific Investigation"，who has been studying laughter for decades．"Almost all people laugh‘ha-ha-ha'basically the same way．Whether you speak Mandarin，French or English，everyone will understand laughter．There is a pattern generator（发生器） in our brain that produces this sound．
Laughing is also a good way of communicating．Babies laugh long before they speak．No one teaches them how to laugh．They just do it．People may laugh at a prank（恶作剧） on April Fools'day．But surprisingly，only 10to 15percent of laughter is the result of someone making a joke．Laughter is mostly about social responses rather than reaction to a joke．Deaf people laugh without hearing and people on cell phones laugh without seeing，which shows that laughter isn't dependent on a single sense but on social interactions．
And laughter is not just a human thing．Chimps tickle（挠痒） each other and even laugh when another chimp pretends to tickle them．
Jaak Panksepp studies rats that laugh when he tickles them．It turns out rats love to be tickled．They return again and again to the hands of researchers tickling them，Panksepp's video shows．
By studying rats，scientists can figure out what's going on in the brain during laughter．It has been found that laughter in rats produces a chemical that acts as an antidepressant（抗抑郁药） and anxiety-reducer．Scientists think the same thing probably happens in humans，too．This would give doctors a new chemical target in the brain in their effort to develop drugs that fight depression and anxiety in people．
Even so，laughter itself has not been proved to be the best medicine，experts said．"No study has shown that laughter produces a direct health benefit，"Provine said，"largely because it's hard to separate laughter from just feeling good．"
64．Why does the writer say"laughter is mostly about social responses rather than reaction to a joke"？A
A．because people can communicate with each other by laughing．
B．because laughter is the same sound in all the human's languages．
C．because laughter is considered a basic language all people can learn．
D．because everyone can understand the meaning of the word laughter．
65．From the last two paragraphs we know thatC．
A．laughter has no direct connection with good feelings
B．laughing every day can cure people of many diseases
C．the medical functions of laughter are still under experiment
D．scientists have learned what is happening in a human brain when he laughs
66．Which of the following statements is true according to the passage？B
A．Laughter depends on many senses．
B．Laughter is a social response shared by all creatures．
C．If you speak different languages，you will laugh differently．
D．A new medicine has been developed based on the laughter research．

18．Animal experimentation is the backbone（支柱，基础） of American research and treatment of disease．Each year，17million to 22million animals are sacrificed in the name of science．While 90percent of them are rats and mice，180，000dogs，50，000cats，61，000monkeys and 554，000rabbits are done away with in laboratories operated by industry and government．
But the public has raised an outcry（导致抗议） over these deaths．Spurred（驱策，刺激） vivid（生动的） reports of cruelty，the animal rights movement is made up of 7，000organizations with 10million members．They've documented cases in which monkeys were isolated（隔离） in steel tanks（箱、柜） for 45days and dogs were bombarded（轰击、辐射） with radiation or chemicals until they bled from the mouth．
Scientists say such incidents are rare．Laws have been passed to govern testing．Many research centers now have committees to review all proposed animal experiments，and computers can be used in place of animals in many experiments．But scientists say they can't do without animals to test new drugs and treatments on animals to make sure they're safe for humans．Animal experiments produced vaccines（疫苗） or treatments for diseases such as diabetes（糖尿病），and techniques used in open heart surgery．They're important to efforts to find a treatment for AIDS．
Animal rights activists have shown they will go to almost any length．One New York researcher received more than 10，000protest（抗议） letters following publicity of her experiments in which she gave drugs to monkeys．The researcher was studying drug addiction．A protester was arrested in Connecticut for placing a pipe bomb（铁管土炸药）outside a company that used animals in tests．After fires and break-ins，many labs have bought electronic locks and alarms for protection．Other targets of the animal rights movement are the fur industry，farms，and school biology classes in which children dissect（解剖） frogs．
The movement has scored some successes．A dozen states no longer allow pounds（兽栏）──places that accept dogs and cats that have no homes──to sell animals to scientists．Scientists claim the cost of their work will rise as a result．
The battle between scientists and activists raises a basic question：Can modern society be both humane（仁慈的） in its treatment of living things and advanced in its treatment of disease？It seems certain there will be new restrictions placed on the use of animals in scientific experiments．
58．The main idea of the article isA．
A．fewer animals should be taken to laboratories
B．Americans are questioning the use of animals in experiments
C．mice and rats make the best subjects for experiments
D．scientific experiments can be carried out without animals
59．Animal experiments will probably continue becauseC．
A．scientists insist they are harmless
B．the groups that oppose them aren't very big or powerful
C．they are critical for understanding and curing human disease
D．there are enough regulations to protect animals from abuse
60．Supporters of animal rights are most convincing when theyD．
A．explode bombs at laboratories that conduct scientific tests
B．point out the diseases that have been cured by scientists
C．threat their own pets kindly
D．give examples of animals that were mistreated in labs
61．Scientists will be satisfied only ifA．
A．they can continue using animals in their experiments
B．the animal rights movement comes to a stop．
C．they install locks and alarms on their labs
D．their supply of animals is increased significantly．

19．Tom has perfectlyrecovered（痊愈）from his illness．

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