If you are looking for an animal to take the title of “most violent fish in the sea”, then the tiger puffer (河豚) fish would have to be a strong contestant. Not only is it deadly poisonous --- though that doesn’t stop people trying to eat it --- but it is also able to scare off enemies by inflating itself to become much larger than normal, when it is young it even chews on its own brothers and sisters.
Tiger puffer fish attach their eggs to rocks near the bottom of the sea, often at the mouths of bays. Then the larvae (幼鱼) move to the entries of rivers and lakes once they have grown a little. Then, having put on a lot of weight, they head out to sea. There’s no innocent childhood for the puffer fish, as Shin Oikawa of Kyushu University in Japan and his colleagues found out when they put the larvae of tiger puffer fish in the lab and monitored them for two months. They found that the larvae went through three steps in which their metabolic(新陈代谢) rates increased dramatically when they reached body weights of 0.002g, 0.01g, and 0.1g. When a larva went through one of these steps, its behavior also changed. For instance, once a larva had passed the first level it would have grown its first tooth and could start attacking larvae that had not yet reached that stage. Similarly, any larva that had reached the 0.01g or 0.1g levels would start attacking lighter larvae.
The researchers noted that the baby fish had a “relatively small mouth”, so rather than swallowing their brothers and sisters whole, they would bite pieces out of them. Despite this limitation, the fish caused plenty of deaths --- up to 12 per cent of the deaths that happened in the lab each day.
Those fish that grew fast enough to be able to chew on their fellows had an advantage. The extra food accelerated their growth and development. Tiger puffer fish are likely to be faster and swifter, so they can deal better with enemies.
As the name suggests, puffer fish can inflate to make themselves seem much larger than they really are, thus scaring off enemies. They do this by filling their stomachs, which are extremely elastic(弹性的), with water. If that’s not enough of a threat, the tiger puffer fish --- like most of the other puffer fish in the family --- carries a deadly toxin(毒素). Eat one puffer fish and the poison will paralyze (瘫痪) your muscles, including the muscles responsible for breathing, so death is usually caused by a lack of oxygen. Famously, the fish is a delicacy in Japan, where highly qualified chefs produce dishes that contain the safe level of the poison. Interestingly, the puffer fish does not go to the trouble of producing the poison itself. Instead, it hosts bacteria (细菌) that produce the stuff. It obtains these bacteria from its diet, so the youngest adult fish are not poisonous.
【小题1】All of the following statements account for the violence of puffer fish except that_____.
| A．they are very difficult to catch |
| B．they can become larger to threaten enemies away |
| C．they kill their younger companions as they grow up |
| D．they are deadly poisonous |
| A．can only grow to a weight of 0.1g |
| B．do not change their behavior as they grow up |
| C．like to find a safe place to hatch the next generation |
| D．begin to grow teeth when they reach the third level |
| A．Its inner organs. | B．The air it breathes in. |
| C．The diet it eats. | D．The bacteria around it. |
| A．Puffer fish can only produce poison when they face danger. |
| B．People like eating puffer fish even though they are poisonous. |
| C．The larvae are more aggressive than adult puffer fish. |
| D．Young puffer fish taste better than adult puffer fish. |
天天向上一本好卷系列答案
小学生10分钟应用题系列答案科目：高中英语 来源：2011-2012学年四川省南充高中高二下学期第二次月考英语试卷（带解析） 题型：阅读理解
When a storm is coming, most people leave the area as quickly ad possible and head for safety. But there are a few people who will get into their cars and go straight for the center of the storm. These people are willing to risk being killed by floods or 100-kilometer-an-hour winds for the excitement of watching the storm close up.
“Storm chasing” is becoming an increasingly popular hobby, especially in the Midwest of the United States, where there are frequent storms between March and July. A storm chaser begins the day by checking the Internet for the latest weather reports, and then drives up to 1,000 kilometers to where the storm will be and waits for it to develop.
Although anyone can do it , storm chasing is extremely dangerous. The power of a big storm can throw a cow into the air or destroy a whole house in seconds. Storm chasers are also often hurt in accidents caused by driving in a heavy rain. If you are a beginner, it is much safer to join a group for storm-chasing vacations during the storm season.
Even then, storm chasing is not all adventure and excitement . “Storm chasing is 95% driving,” says Daniel Lynch, who spends most of his summer storm-chasing. “Sometimes you can sit around for hours waiting for something to happen, and all you get is blue sky and a few light showers.”
However, for storm chasers, it is all worth it. “When you get close to a storm, it is the most exciting sight you will ever see in your life,” says Jasper Morley. “Every storm is an example of the power of nature, It is the greatest show on Earth.”
【小题1】For storm chasing, the first thing storm chasers do is to .
| A．head straight for the center of the storm |
| B．get into the car for safety |
| C．wait patiently for the storm to develop |
| D．collect information about a coming storm |
| A．not to drive in a heavy rain |
| B．to do it in an organized way |
| C．not to get too close to a storm |
| D．to spend more time on it in summer |
| A．storm chasing costs a lot of money |
| B．storm chasing is worth hours of waiting |
| C．efforts in storm chasing are well paid |
| D．a storm presents the greatest show on Earth |
| A．Sometimes storm chasers get nothing but disappointment |
| B．Many storm chasers get killed in the storms. |
| C．Storm chasing is becoming popular around the world. |
| D．Storm chasing is only fit for young people. |
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科目：高中英语 来源：2012届江西省上饶市高三下学期第一次高考模拟英语试卷（带解析） 题型：阅读理解
Are you a compulsive spender，or do you hold on to your money as long as possible? Are you a bargain hunter? Would you rather use charge accounts than pay in cash? Your answers to these questions will reflect your personality．According to psychologists，our individual money habits not only show our beliefs and values，but can also stem from past problems．
Experts in psychology believe that for many people，money is an important symbol of strength and influence．Husbands who complain about their wives’ spending habits may be afraid that they are losing power in their marriage．Wives，on the other hand，may waste huge amounts of money because they are angry at their husbands．In addition，many people consider money a symbol of love．They spend it on their family and friends to express love，or they buy themselves expensive presents because they need love．
People can be addicted to different things —for example，alcohol，drugs，certain foods，or even television．They are compulsive in their addictions，i．e．they must satisfy these needs to feel comfortable．In the same way，according to psychologists，compulsive spenders must spend money．
For people who buy on credit，furthermore，charge accounts are even more exciting than money：in other words，they feel that with credit，they can do anything．Their pleasures in spending enormous amounts are actually greater than those 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 winning．Most people，experts claim，have two reasons for their behavior：a good reason for the things that they do and the real reason．
It is not only scientists，of course，who understand the psychology of spending habits，but also 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 and opinions， etc．in their advertising and sales methods．
Psychologists often use a method called “behavior therapy（疗法）”to help individuals solve their personality problems．In the same way，they can help people who feel that they have problems with money：they give them “assignments” If a person buys something in every store that he enters， for instance，a therapist might teach him self discipline in this way：on the first day of his therapy， he must go into a store，stay five minutes，and then leave．On the second day，he should stay for ten minutes and try something on．On the third day，he stays for fifteen minutes，asks the salesclerk a question，but does not buy anything．Soon he will learn that nothing bad will happen to him if he doesn’t buy anything，and he can solve the problem of his compulsive buying．
【小题1】If you use charge accounts， ．
| A．you pay in cash |
| B．you pay less than you should |
| C．you pay with credit card |
| D．you pay more than you should |
| A．the things they buy are cheap |
| B．they believe they can balance their budgets |
| C．they get psychological satisfaction |
| D．they really need the things they buy |
| A．helping businessmen to increase their business |
| B．helping compulsive spenders to buy less |
| C．finding out how people will react if they are allowed to buy |
| D．finding out what people will do in front of a bargain |
| A．different things |
| B．their addictions |
| C．their pleasures |
| D．charge accounts |
| A．how you spend money reveals if you are psychologically healthy |
| B．money is a necessity and will bring you happiness if you have much |
| C．compulsive buying problems can be solved by taking some medicine |
| D．all businessmen understand well the psychology of customers |
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科目：高中英语 来源：2011-2012学年湖北省孝感高中高一下学期期中考试英语试卷（带解析） 题型：阅读理解
Thank you for your interest in helping animals! Volunteering is a wonderful way to learn, have fun and give back to your community（社区）. There are many ways to care for the animals at PAWS.
Youth Work Party
If you are ten years or older, you can join the Youth Work Party Team with a parent to work on different projects around PAWS in Lynnwood, WA. For example, you can build boxes for frightened, injured wildlife to hide in. Ask your parent to sign up to join a work party. If you are eighteen years or older, you can join the Youth Work Party Team independently.
PAWSwalk
PAWSwalk is our biggest fundraising（筹款）event of the year, held at the end of the summer to raise money to care for the animals. You can collect money with the help of your family, friends and school, and then walk in the event.
Cookie Sale
Selling homemade dog cookies is a wonderful way to help the animals. PAWS can provide brochures（小册子）to give out when you sell the cookies prepared by you and your parents, so people can learn about PAWS at the same time. You can find homemade dog cookie cooking instructions on the Internet or by checking out cookbooks for dogs at the library.
Movie Night
Invite friends, family, neighbors and classmates to watch your favorite animal movie, like Babe or Charlotte’s Web. Ask them to bring an “entrance fee” of donations or supplies for the animals.
Thanks again for your interest in PAWS and helping animals. Share your ideas with your parents and invite a few friends to join you in helping make a difference for animals. If you have any questions, call 425-787-2500-261.
【小题1】Who may work in the Youth Work Party Team by himself/herself ?
| A．A ten-year-old student. | B．A thirteen-year-old student. |
| C．A sixteen-year-old student. | D．A nineteen-year-old student. |
| A．sell cookbooks for dogs | B．cook and sell dog cookies |
| C．sell cookies made by PAWS | D．offer brochures about cookies |
| A．Youth Work Party. | B．PAWSwalk |
| C．Cookie Sale | D．Movie Night. |
| A．a skill training program for youths |
| B．a series of cookbooks for dogs |
| C．an animal protection organization |
| D．a community center for children |
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科目：高中英语 来源：2013届贵州省晴隆民族中学高三上学期期中考试英语试卷2（带解析） 题型：阅读理解
The average person learns most of the 30 000～40 000 words whose meanings he or she recognizes by hearing them or getting familiar with them in the context or simply absorbing them without conscious effort. The best way to build a good vocabulary, therefore, is to read a great deal and to participate in a lot of good talks. There are relatively few words that we learn permanently by purposefully referring to dictionaries or keeping word lists. However, even those extra few are of value, and no one will make a mistake by working on developing a larger vocabulary. Here are some suggestions of how to do it.
Read plenty of good books. When you come across a new word, or a new meaning of an old word, stop and see if you can understand it from its context. If you can't, and if you can manage without interrupting the thought of the book too much, look it up in a dictionary or ask somebody and then repeat its meaning to yourself a couple of times. If you are really conscientious(认真的), write the word and its meaning in a personal vocabulary list － preferably using it in a sentence, or you can keep a special vocabulary notebook. Go over the list from time to time. Further, try to use a new word in writing or conversation a few times over the next several days.
Listen to good talks and be alert to new words you hear or to new meanings of words you already know. Then treat them just as you treat the new words you read.
Learn and be alert to the parts of words: prefixes, suffixes and roots. Knowing them enables you to make intelligent guesses about the meanings of words.
If you are studying a foreign language, be alert to words in that language which relate to words in English. English has inherited(继承) or borrowed much of its vocabulary of 500 000～600 000 words from Latin, Greek, French, Spanish and German.
【小题1】When you meet a new word in reading, what should you do?
| A．Guess its meaning. | B．Ask somebody. |
| C．Look it up in a dictionary. | D．All of the above. |
| A．to remember a lot | B．to read a great deal |
| C．to take part in a lot of good talks | D．both B and C |
| A．look at | B．pay attention to | C．write down | D．learn by heart |
| A．the parts of words | B．prefixes | C．suffixes | D．Roots |
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科目：高中英语 来源：2011届山西省晋中市高三上学期四校联考英语卷 题型：阅读理解
Like most big projects, learning to manage your mother well is what you should do. Here are what I believe the best steps towards a better relationship with her. They are not necessarily surprising or revolutionary, but they have worked for many people. Try them.
Remember your mother’s age. As children, we often do not think of our mother as having an age. Even when we become conscious of her as an individual, age does not change our view; she is still our mother. Knowing our mother’s age, not just in numbers of years but in terms of her psychological and physical state, often helps us to understand her better.
Listen to your mother. I have found that sometimes the things my mother told me long ago are remarkably useful. If your mother knows that you respect her point of view, even if you do not share it, it will help her feel close to you.
Remember that your mother has a past. A key step in managing our relationship with our mother is to find out about her early life.In learning about our mother’s past, we know that it can encourage us to think about her whole life.
Ask your mother about your c
hildhood histo
ry. My grandparents died when I was young. If you are fortunate enough to have living family, think of your life as a jigsaw puzzle and ask as many questions as you can to put the picture together. Understanding your roots and your childhood can hel
p you know more clearly who you are, as part of a family which you share with your mother.
Remember that managing your mother is really about managing yourself. Taking any measure to managing our mother is the issue of how we manage ourselves. No matter how difficult we find her, it is important to remember that it is not her behavior itself that is causing us discomfort, but the way we feel about 
her behavior. We should follow the way of her life. At the heart of managing your mother is being able to accept your flawed self. Only then are you able to accept your mother-----with all her failings.
64. 【小题1】What does the underlined phrase “a jigsaw puzzle” mean?
| A．拼图玩具 | B．浏览迷宫 | C．填充字谜 | D．游戏人生 |
| A．You will have a better relationship with your mother if you respect her opinion. |
| B．Knowing your mother’s age is a useful piece of advice. |
| C．The key measure of managing our mother is how we manage ourselves. |
| D．It is unreasonable to expect our mother to change totally from the way she was brought up. |
| A．to give information about how you think of your mother |
| B．to improve the relationship with your mother |
| C．to keep a sense of humor about your mother all day long |
| D．to accept your mother-----with all her failings |
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