挑战100单元检测试卷系列答案科目：高中英语 来源： 题型：阅读理解
Directions: Read the following text and choose the most suitable heading from A-F for each paragraph．There is one extra heading which you do not need.
| A．Causes of overusing fluoride | B．Negative effects of fluoride |
| C．Safe use of fluoride | D．The expert’s background information |
| E．No need to worry about fluoride poisoning | |
| F．Solutions to improper use of fluoride | |
I have heard that fluoride can help stop dental decay, but I recently read that it is poisonous．Which of these is true? How can children use fluoride safely?
This question is answered by Dr Marcia M．Rich who practises general dentistry in Newholt．She is also a lecturer at the University and a writer for the monthly magazine Your Dentist Cares．
My answer to the first question is to stress that fluoride works well and is safe when users follow instructions．Young children have a tendency to swallow toothpaste, which is why they should only have a tiny amount of fluoride toothpaste on their toothbrush．If this simple measure is taken, parents can be confident that children will be protected against tooth decay, and come to no harm.
Almost all medicines have an adverse effect－or even be deadly－if they are not taken as directed．So you are right－fluoride can be poisonous if it is swallowed in very large quantities．It is for the reason that fluoride supplements can only be obtained on prescription from the doctor or dentist．Please be assured that fluoride overdoses are rare－in fact, I have never heard of any fatal incidents related to fluoride poisoning.
Scientific studies have shown that fluoride can help to prevent cavities as long as it is used correctly．If fluoride is abused, there is a risk of illness or even deaths in extreme cases．If a deadly amount of fluoride is taken, immediate first-aid could save a life．A person who has swallowed a large amount of fluoride will probably start vomiting．If not, the patient should be given milk or antacid and taken to the nearest hospital for emergency treatment.
Taking too much fluoride while teeth are growing can lead to a condition called dental fluorosis．The most likely cause is the swallowing of fluoride toothpastes by young children．It can also be caused by inappropriate use of fluoride drop or other fluoride supplements, for example when fluoride is already is already present in drinking water．
查看答案和解析>>
科目：高中英语 来源： 题型：阅读理解
People can be addicted to different things— e．g．alcohol, drug, certain foods，or even television．People who have such an addiction are compulsive: they have a very powerful psychological need that they feel they must satisfy．According to psychologists, many people are compulsive spenders．They feel that they must spend money．This compulsion, like most others, is impossible to explain reasonably．For compulsive spenders who buy on credit, charge accounts are even more exciting than money．In other words, compulsive spenders feel that with credit, they can do anything．Their pleasure in spending large amounts is actually greater than the pleasure that they get from the things they buy．
There is even a special psychology of bargain hunting．To save money, of course, most people look for sales, low prices, and discounts．Compulsive bargain hunters，however, often buy things that they don't need just because they are cheap．They want to believe that they are helping their budgets, but they are really playing an exciting game．When they can buy something for less than other people, they feel that they are winners．Most people, experts claim, have two reasons for their behavior: a good reason for the things that they do and thereal reason．
It is not only scientists, of course, who understand the psychology of spending habits, butalso business people．Stores, companies, and advertisers use psychology to increase business．They consider people's needs for love, power, or influence, their basic values, their beliefs andopinions, and so on in their advertising and sales methods．
Psychologists often use a method called "behavior therapy （疗法）"to help individuals solvetheir personality problems．In the same way, they can help people who feel that they haveproblems with money．
According to psychologists, a compulsive spender is one who spends large amounts of money ．
A．and takes great pleasure from what he or she buys
B．in order to satisfy his or her basic needs in life
C．just to meet his or her strong psychological need
D．entirely with an irrational eagerness
According to the passage, compulsive bargain hunters are often in search of the lowest possible prices .
A．because they feel satisfied if they spend less money than others
B．because they like to show off their success in getting things for less money
C．because they have money problem
D．because they want to save money to help heir budget
The passage is mainly talking about ．
A．the psychology of money-spending habits
B．the purchasing habits of compulsive spenders
C．a special psychology of bargain hunting
D．the use of the psychology of spending habits in business
From the passage we may safely conclude that compulsive spenders or compulsive bargainhunters .
A．are really unreasonable
B．need special treatment
C．can't be cured
D．can never get any help to solve their problems with money
查看答案和解析>>
科目：高中英语 来源：2013届河南省高三第三次考试英语试卷（解析版） 题型：信息匹配
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多途选项。
What is a big dream ? (1) Or , is a big dream something that provides only entertainment? Children dream big dreams, but there are three barriers to realizing dreams. They often kill them before they ever have a chance to grow.
The Self
Immediately following the birth of a big dream, a negative self-talk takes over and gives all the reasons why it cannot happen. This inside voice is the ego(自我). It’s there for protecting and should be listened to. (2) Most people are influenced by the inside voice. That’s why only a handful of people make their dream come true.
(3)
Family and friends are a lot like the ego. They want to protect those they love, so they will often list all the reasons why the big dreams won’t come true. Sometimes, family and friends destroy dreams of those they love most, out of their own fear of being left behind.
The World
If one gets past the first two barriers, one has to face the world. (4) In the past, big dreamers were locked up and sometimes even killed when they were shown to the world. Fortunately, in most of the world today, big dreamers just get laughed at.
The way to realize a big dream is with confidence and action. When children have confidence and then take action, they will be ready to accept any failure. The truth is that every great dreamer whose dreams have never seen the light of success knows failure well.(5)
|
A．Family and Friends |
|
B．How Big Dreams Die |
|
C．Does a big dream show one’s future ? |
|
D．They simply fail until they succeed. |
E. It is the last and the most terrible barrier.
F. Sometimes it is right, but more often it is wrong
G. And their big dream is to be a rock star or a famous artist.
查看答案和解析>>
科目：高中英语 来源：2013届江西省高三第一次月考英语试卷（解析版） 题型：阅读理解
Electric cars are dirty. In fact, not only are they dirty, they might even be more dirty than their gasoline-powered cousins.
People in California love to talk about “zero-emissions（排放）vehicles”, but people in California seem to be clueless about where electricity comes from. Power plants most all use fire to make it. Apart from the few people who have their roofs covered with solar cells, we get our electricity from generators（发电机）. Generators are fueled by something--usually coal, oil, but also by heat generated in nuclear power plants. There are a few wind farms and geothermal（地热） plants as well, but by far we get electricity mainly by burning something.
In other words, those "zero-emissions" cars are likely coal-burning cars. Because the coal is burned somewhere else, it looks clean. It is not true. It's as if the California Greens are covering their eyes—“If I can't see it, it's not happening.” Gasoline is an incredibly efficient way to power a vehicle; a gallon of gas has a lot of energy in it. But when you take that gas（or another fuel）and first use it to make electricity, you waste a nice part of that energy, mostly in the form of wasted heat--at the generator, through the transmission lines, etc.
A gallon of gas may drive your car 25 miles. But the electricity you get from that gallon of gas won't get you nearly as far -- so electric cars burn more fuel than gasoline-powered ones. If our electricity came mostly from wind or geothermal, or solar, then an electric car truly would be clean. But for political, technical, and economic reasons, we don't use much of those energy sources.
In addition, electric cars' batteries which are poisonous for a long time will eventually end up in a landfill. And finally, when cars are the polluters, the pollution is spread across all the roads. When it's a power plant, though，all the junk is in one place. Nature is very good at cleaning up when things are not too concentrated, but it takes a lot longer when all the garbage is in one spot.
1.What’s the main idea of the passages?
|
A．Electric cars aren’t actually clean. |
|
B．Electric cars are zero-emissions vehicles. |
|
C．Zero-emissions vehicles are popular. |
|
D．Gasoline-powered cars are more efficient. |
2.Which of the following words can replace “be clueless about” in Paragraph 2?
|
A．Be familiar with． |
|
B．Be curious about． |
|
C．Fail to understand． |
|
D．Show their interest in． |
3.The electricity we get from a gallon of gas may make our car run _________.
|
A．at least 25 miles |
|
B．more than 25 miles |
|
C．as far as 25 miles |
|
D．less than 25 miles |
4.In the author’s opinion, compared with cars using gas, electric cars are more __________.
|
A．environmentally-friendly |
B．expensive |
|
C．efficient |
D．harmful |
5.It can be inferred from the passage that __________.
|
A．electric cars' batteries are poisonous for a long time |
|
B．now electric cars are used more than their gasoline-powered cousins |
|
C．zero-emissions vehicles should be chosen to protect our environment |
|
D．electric cars are not clean in that we get electricity mainly by burning something |
查看答案和解析>>
科目：高中英语 来源：河南郑州智林学校2010届高三下学期模拟测试试卷（英语） 题型：阅读理解
第三部分:阅读理解(共20小题,每小题2分,满分40分)
阅读下列短文,从每题所给的四个选项（A、B、C和D）中,选出最佳选项。
A lot of management training each year for Circle K Corporation, a national chain of convenience stores. Among the topics we address in our course is the retention（保护力） of quality employees-a real challenge to managers when you consider the pay scale（标准）in the service industry. During these discussions, I ask the participants（参加者）, “What has caused you to stay long enough to become a manager?” Some time back a new manager took the question and slowly, with her voice almost breaking, said, “It was a ＄19 baseball glove.”
Cynthia told the group that she originally took a Circle K clerk job as an interim（临时的） position while she looked for something better. On her second or third day behind the counter, she received a phone call from her nine-year-old son, Jessie. He needed a baseball glove for Little League. She explained that as a single mother, money was very tight, and her first check would have to go for paying bills. Perhaps she could buy his baseball glove with her second or third check. When Cynthia arrived for work the next morning, Patricia, the store manager, asked her to come to the small room in the back of the store that served as an office. Cynthia wondered if she had done something wrong or left some part of her job incomplete from the day before. She was concerned and confused.
Patricia handed her a box. “I overheard you talking to your son yesterday,” she said, “and I know that it is hard to explain things to kids. This is a baseball glove for Jessie because he may not understand how important he is, even though you have to pay bills before you can buy gloves. You know we can’t pay good people like you as much as we would like to; but we do care, and I want you to know you are important to us.”
The thoughtfulness, empathy and love of this convenience store manager demonstrates vividly that people remember more how much an employer cares than how much the employer pays. An important lesson for the price of a Little League baseball glove.
1．Among many of the problems in the service industry, what is talked about in this passage, is_______.
A．how to ensure his employees’ high pay
B．how to attract more customers
C．how to look carefully after the employees
D．how to keep the good employees from leaving
2．Although a new manager, Cynthia would do her job well in keeping quality employees because she________.
A．had mastered all the courses for the manager
B．had already formed good relationship with the employees
C．know the way how to deal with her employees
D．had her own personal experience
3．This passage shows us that to run a business well it is necessary for managers to let their employees know________.
A．how much they can get for their job.
B．what good positions they can get later
C．they are very necessary to the business
D．they are nice as well as useful
4．The story told in this passage tells us that employees care about___________.
A．only how large a pay they can get
B．love from the managing people rather than only money
C．if their children could be properly taken care of
D．what position they can be offered
查看答案和解析>>
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com
