Howling is a behavior commonly observed among a wolf pack（群）. As pack animals, wolves work together to hunt and rely on howling as an important means of communication among each other. There are different explanations of a wolf’s howl and it appears that there may be more to discover.
One theory is that wolves howl to bond（结合）better together. It’s almost as if howling together helps the pack stay together, perhaps something similar to people feeling a sense of involvement with each other when singing a song together. But this theory may be wrong, explains Fred H. Harrington, a professor who studies wolf behavior. Indeed, there have been times when wolves have been seen one moment howling in a chorus, and the next, quarreling among each other. It appears that usually the lowest-ranking members of the pack may actually be “punished” for joining in the chorus at times. So is howling a way to strengthen a social bond or just a way to reconfirm status among its members? —Why do wolves howl for sure?
What is clear, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that wolves may separate from one another at times. When this happens, howling appears to be an excellent means of gathering.
Howling, interestingly, is a contagious behavior. When one wolf starts to howl, very likely others will follow. This is often seen to occur in the morning, as if wolves were doing some sort of “roll call” where wolves all howl together to report their presence.
1.What is the possible similarity between wolves’ howling together and human’s singing in chorus?
A. The act of calling each other.
B. The sense of achievement.
C. The act of hunting for something.
D. The sense of belonging to a group.
2.Why does Harrington think the “social bond” theory may be wrong?
A. Wolves separate from each other after howling.
B. Wolves tend to protect their hunting grounds.
C. Wolves sometimes have quarrels after howling together.
D. Wolves of low rank are encouraged to join in the chorus.
3.Researchers are sure that wolves often howl to______.
A. show their ranks
B. find their companions
C. report the missing ones
D. express their loneliness
4.“Howling…is a contagious behaviour” (in the last paragraph) means______.
A. howling is a signal for hunting
B. howling is a way of communication
C. howling often occurs in the morning
D. howling spreads from one to another
高二英语阅读理解中等难度题
Howling is a behavior commonly observed among a wolf pack（群）. As pack animals, wolves work together to hunt and rely on howling as an important means of communication among each other. There are different explanations of a wolf’s howl and it appears that there may be more to discover.
One theory is that wolves howl to bond（结合）better together. It’s almost as if howling together helps the pack stay together, perhaps something similar to people feeling a sense of involvement with each other when singing a song together. But this theory may be wrong, explains Fred H. Harrington, a professor who studies wolf behavior. Indeed, there have been times when wolves have been seen one moment howling in a chorus, and the next, quarreling among each other. It appears that usually the lowest-ranking members of the pack may actually be “punished” for joining in the chorus at times. So is howling a way to strengthen a social bond or just a way to reconfirm status among its members? —Why do wolves howl for sure?
What is clear, however, is that howling is often used among packmates to locate each other. Hunting grounds are distant and it happens that wolves may separate from one another at times. When this happens, howling appears to be an excellent means of gathering.
Howling, interestingly, is a contagious behavior. When one wolf starts to howl, very likely others will follow. This is often seen to occur in the morning, as if wolves were doing some sort of “roll call” where wolves all howl together to report their presence.
1.What is the possible similarity between wolves’ howling together and human’s singing in chorus?
A. The act of calling each other.
B. The sense of achievement.
C. The act of hunting for something.
D. The sense of belonging to a group.
2.Why does Harrington think the “social bond” theory may be wrong?
A. Wolves separate from each other after howling.
B. Wolves tend to protect their hunting grounds.
C. Wolves sometimes have quarrels after howling together.
D. Wolves of low rank are encouraged to join in the chorus.
3.Researchers are sure that wolves often howl to______.
A. show their ranks
B. find their companions
C. report the missing ones
D. express their loneliness
4.“Howling…is a contagious behaviour” (in the last paragraph) means______.
A. howling is a signal for hunting
B. howling is a way of communication
C. howling often occurs in the morning
D. howling spreads from one to another
高二英语阅读理解中等难度题查看答案及解析
It is a matter of common observation that although incomes keep going up over the years，people never seem to become much better off! Prices are rising continuously．The condition is termed(称作) one kind 0f inflation, the money supply is becoming inflated so that each unit of it becomes less valuable．People have got used in recent years to higher and higher rates of inflation．
What could be bought ten years ago for one dollar now costs well over two dollars. It seems that this rate of inflation is tending to rise rather than to fall．If in the real world our money incomes go up at the same rate as prices，one might think that inflation does not matter．But it does when money is losing value，it lacks one of the qualities of a good money---stability (稳定) of value．It is no longer acceptable as a store of value；and it becomes an unsuitable standard of deferred(延期) payments．Nobody wants to hold a wasting possession，so people try to get rid of money as quickly as possible. Inflation therefore stimulates people spending，and prevents people from saving.
1.
What does inflation mean?
A．People’s money becomes more valuable
B．The problem of employment will be solved．
C．It’s easier for people to find better paying jobs．
D．Money keeps losing its value．
2.
From the passage．we can know inflation __________.
A．seldom happens B．is very common at present
C．is a must D．has become less in recent years
3.
According to the passage，if incomes and prices rise together ______
A．the business will become better B．money will hold its value
C．inflation won’t be a problem D．inflation will remain to be a problem
4.
In a period of inflation，people are likely to ______ ．
A．put much money on the stock market(股市)
B．stop spending money
C．hold on to money as a dependable possession
D．spend money as soon as possible
高二英语阅读理解简单题查看答案及解析
The mobile phone rule is just common polite behavior. Most people today have a mobile phone. In fact, many people can’t imagine how they ever get along without them. However, many people also complain(抱怨) about mobile phone users. People complain about other people loudly discussing personal matters in public places. They complain when mobile phones ring in movie theaters and concert halls. They complain about people driving too slow, and paying no attention to where they are going because they are talking on a mobile phone. And they complain about people walking around talking to people who aren’t there.
Whenever a new communication technology becomes popular, it changes the way in which society is organized. Society has to invent rules for the polite way to use the new devices（装置）. Our rules of politeness for mobile phones are still evolving（发展；使逐渐形成）.
The mobile phone rule applies to most public places. Always try to have your phone ring as low as possible or put your mobile phone on the vibration（振动） mode, so it does not distract the people around you. The basic mobile phone rule includes:
1. Switch it off: Turn it off when you have meetings, worship, and so on.
2. Be brief: When you get a call and you’re with friends, keep the call short.
3. Permission: Often, it is correct and polite behavior to inform others at the beginning of the meeting that you are expecting an important call and get their permission.
4. Be polite: Don’t scream — speak in a lower-than-normal voice.
5. Don’t distract: Avoid talking where you may be distracting to others.
6. Driving: It is not only very dangerous, but also unlawful in most countries to drive and talk on your mobile phone.
1.What is the best title for this passage?
A. How to use a mobile phone.
B. Mobile phone rule.
C. The disadvantages of mobile phones.
D. Mobile phones — making them work for us.
2.According to this passage, we can know that the rules for mobile phones are______.
A. far from our satisfaction
B. getting worse
C. making people disappointed
D. developing gradually
3.Which of the tips on using mobile phones properly is mentioned in this passage?
A. Concentrate on what others say.
B. Speak at the top of your voice in order to make yourself heard.
C. Always turn off your mobile phones.
D. Had better not distract others.
4.What is the main purpose of writing the first paragraph?
A. To attract readers to the topic of the passage.
B. To give examples about people’s improper behaviors with mobile phones.
C. To criticize people’s improper behaviors.
D. To show mobile phones have brought people a lot of trouble.
5.What does the word underlined“it” refer to in Paragraph 3?
A. A mobile phone.
B. The ring of the phone.
C. The mobile phone rule.
D. The conversation on the phone.
高二英语阅读理解中等难度题查看答案及解析
Downloading music over the Internet is pretty common among high school and college students. However, when students download and share copyrighted music without permission, they are against the law.
A survey of young people’s music ownership has found that teenagers and college students have an average of more than 800 illegally copied songs each on their digital music players．Half of those surveyed share all the music on their hard drive (硬盘), enabling others to copy hundreds of songs at any one time. Some students were found to have randomly linked their personal blogs to music sites, so as to allow free trial listening of copyrighted songs for blog visitors, or adopted some of the songs as the background music for their blogs. Such practices may be easy and free, but there are consequences.
Sandra Dowd, a student of Central Michigan University, was fined US $7,500 for downloading 501 files from Lime Wire, a peer-to-peer file sharing program. Sandra claimed that she was unaware that her downloads were illegal until she was contacted by authorities. Similarly, Mike Lewinski paid US $4,000 to settle a lawsuit（起诉）against him for copyright violation (违反). Mike expressed shock and couldn’t believe that this was happening to him. “I just wanted to save some money and I always thought the threat was just a scare tactic(战术).” “You know, everyone does it,” added Mike.
The RIAA （Recording Industry Association of America）, the organization that files lawsuits against illegal downloaders, states that suing (控告) students was by no means their first choice. Unfortunately, without the threat of consequences, students are just not changing their behavior. Education alone is not enough to stop the extraordinary growth of the illegal downloading practice.
1.Why is it common for students to download copyrighted music?
A. They want their friends to know that they are smart.
B. They don’t think that they will be caught.
C. They think it is a good way to make some extra money.
D. They are against copyright protection over Internet music.
2.What does Mike mean by saying that “the threat was just a scare tactic”?
A. One should not be afraid of threats.
B. A lawsuit will result from the threat.
C. No serious consequence will follow the threat.
D. It is unfair to scare people with a threat.
3.What’s the best title for this passage?
A. Copyright Violators, Beware!
B. How to Get Free Music Online!
C. A Survey of Students’ Downloading Habits
D. Get rid of Illegal Music Download? Impossible!
高二英语阅读理解中等难度题查看答案及解析
In Canada, volunteering is extremely common among people of all ages. They believe that being helpful is one of the most important1.(quality) to have. There are many forms of voluntary work and opportunities to help are everywhere,2.(include) schools or people’s gardens.
I’m volunteering for a foundation to assist the teacher there. I’m in charge of3.preschool class, where students are aged from 3 to 6. When I first started, I was quite nervous as I’d never worked with little kids before. As time went on, I4.(become) more familiar with them. One teacher asked me to help the5.(young)girl in the class draw a picture6.(base) on the word “grateful”. As I was drawing and talking with her, I7. (gradual) felt warm and peaceful, and I realized8.was not that difficult to work with children. When the class was over, I felt really excited and even a bit proud of 9. had been done.
Volunteering gives us not only an opportunity to change someone’s life but also the satisfaction of helping others. It is also a great way to develop social skills and10.(value) experience for our future.
高二英语短文填空中等难度题查看答案及解析
Why do some people flush when they drink alcohol? This effect is a common reaction to alcohol among East Asians. It affects about 36 percent of Japanese, Chinese and Koreans.
For many, even a small amount of alcohol can cause unpleasant effects. Most commonly, their face, neck and sometimes their whole body turn red. People might also feel uncomfortable and sick to their stomach. They might experience a burning sensation, increased heart rate, shortness of breath and headaches.
The cause is a genetic difference that they are born with called an ALDH2 deficiency (缺乏). It prevents their bodies from treating alcohol the way other people do. But the effects might be more serious than just a red face. Researchers warn of a link between this condition and an increased risk of cancer of the esophagus (食道) from drinking alcohol.
The more alcohol people with this deficiency drink, the greater their risk is. In Japan and South Korea, for example, many people have the deficiency but still drink heavily. Researchers found that these drinkers develop a form of esophageal cancer six to ten times more often than those without the deficiency.
Esophageal cancer is one of the deadliest cancers. It can be treated when found early, but once it grows the chances of survival drop sharply. The researchers estimate that at least five hundred forty million people have the deficiency, about eight percent of the world’s population.
Philip Brooks is a researcher at the National Institute in the United States. He says it is important to educate people about the link between the alcohol flushing effect and esophageal cancer. He says doctors should ask East Asian patients about their experiences with facial flushing after drinking alcohol. Those with a history of it should be advised to limit their alcohol use. They should also be warned that cigarette smoking works with the alcohol in a way that further increases the risk of esophageal cancer.
1.The underlined word “flush” in Paragraph 1 probably means “_________”.
A．walk unsteadily B．turn red in the face
C．appear unpleasant D．talk more than usual
2.The second paragraph is mainly about _________.
A．the cause of the effects of alcohol
B．Asians and alcohol
C．the advantages of drinking alcohol
D．unpleasant effects caused by alcohol
3.We can infer from the passage that _________.
A．about 36 percent of Japanese, Chinese and Koreans are heavy drinkers
B．the ALDH2 deficiency may be passed on from generation to generation
C．unpleasant effects occur only when people with this deficiency drink a lot
D．only some East Asians have the ALDH2 deficiency
4.Esophageal cancer is one of the deadliest cancers because _________.
A．it can’t be treated at all
B．it is hard to be discovered early
C．it is hard to cure once it has developed
D．people are usually addicted to alcohol
高二英语阅读理解中等难度题查看答案及解析
______is known to us, bad eating habits are still very common among us students.
A. It B. As
C. Which D. What
高二英语单项填空中等难度题查看答案及解析
He became self-satisfied because of his _____.
A. achievements B. observation C. behavior D. Interests
高二英语单项填空中等难度题查看答案及解析
“At last, no more exams.” It’s a common feeling among high school graduates who have just completed the college entrance examination. What a relief! However, rather than fill the next three months with sleep, eating, and ________1.________ (watch) TV, some students have started working on finding a good choice of foreign college.
Different from those who begin their ________2.________ (apply) for foreign colleges in Senior 2, Li made a late decision on a US education. She began to think about it in Senior 3, but decided not ________3.________ ( give ) up the college entrance exam.
Li’s classmate Mao Bingxin ________4.________ (consider) studying in Canada after the top exam. She began a TOEFL course on June 11.
He Wei, ________5.________ 18-year-old who studies at Shenzhen Bao’an High School, isn’t allowing ________6.________ much freedom this summer vacation either, devoting her time to looking for a language school ________7.________ she can study French and some overseas study consulting agencies.
He Wei considers ________8.________ worthwhile spending the summer preparing for college rather than hanging out with friends. “ ________9.________ we don’t really know what the future holds for us, we are sure that the better preparations we make ________10.________ it, the more choices we will be given.” she said.
高二英语其他题中等难度题查看答案及解析
“At last, no more exams.” It’s a common feeling among high school graduates who have just completed the college entrance examination. What a relief! However, rather than fill the next three months with sleep, eating, and 1. (watch) TV, some students have started working on finding a good choice of foreign college.
Different from those who begin their __2._ (apply) for foreign colleges in Senior 2, Li made a late decision on a US education. She began to think about it in Senior 3, but decided not _3._ (give) up the college entrance exam.
Li’s classmate Mao Bingxin___4.__ (consider) studying in Canada after the top exam. She began a TOEFL course on June 11.
He Wei, __5.__ 18-year-old who studies at Shenzhen Bao’an High School, isn’t allowing _6.___much freedom this summer vacation either, devoting her time to looking for a language school_7.__ she can study French and some overseas study consulting agencies.
He Wei considers _8.___ worthwhile spending the summer preparing for college rather than hanging out with friends. “__9.___ we don’t really know what the future holds for us, we are sure that the better preparations we make 10.__ it, the more choices we will be given.” she said.
高二英语语法填空困难题查看答案及解析