Many people travel to different places in the world by air. Usually it takes a long time, perhaps half a day, for passengers to stay in the plan. So airlines（航空公司）offer passengers food. But it is common that they feel bad about food taste. Do you agree?

To solve this problem, airlines try hard to improve their food. They would like to do so because they don’t want to lose customers.

However, according to scientific research, part of the reason why plane food tastes bad is that at high altitude（海拔）we can not taste things as well as we do on the ground. Also scientists have found that our noses become very dry even before a plane takes off. As the plane moves up, the change in air pressure（气压）reduces one third of the sensibility（感觉）of our taste buds（味蕾）. So our taste buds become senseless. The sad face, however, is that our noses don’t know it.

All of these help explain why food on the plane tastes so bad. They also help explain why airlines choose to offer passengers salty and spicy（辛辣的）food. Without doing so, the food would be tasteless.

Now there are many researches on this. According to one of them, some volunteers are asked to lie with their feet higher than their heads for weeks. And scientists write down their feelings about food taste.

Though scientists try their best, it is not as easy as they thought. Because they can’t deal with the special environment successfully, such as the change in air pressure, making food taste good is still hard for them.

1.In Paragraph 2, “this problem” means ______.

A. passengers stay long in the plane

B. food on the plane tastes bad

C. passengers have no food to eat

D. food on the plane is expensive

2.What do airlines do to solve this problem?

A. Get more customers. B. Offer more food.

C. Improve their food. D. Reduce the ticket price.

3.As the plane moves up, the change in air pressure reduces of the sensibility of our taste buds.

A. half B. one third

C. one fourth D. one fifth

4.Why do scientists feel it hard to made food on the plane taste good?

A. The volunteers don’t know about food taste.

B. The volunteers don’t understand them.

C. They can’t find enough volunteers.

D. They can’t deal with the special environment successfully.

5.What is the best title of the passage?

A. Taste of Airplane Food

B. Airplane Travel

C. Scientific Research on Noses

D. The Change in Air Pressure

How do you improve your English speaking skills, so that you can communicate more easily and effectively? These tips will help you to become a more confident speaker.

Practice where you can and when you can. Any practice is good—whether you speak to someone who is a native English speaker or not.

It’s important to build your confidence. If possible, use simple sentence structure that you know is correct so that you can concentrate on getting your message across.

Try to experiment with the English you know. Apply words and phrases you know to new situations. Native English speakers are more likely to correct you if you use the wrong word than if you use the wrong grammar. Experimenting with vocabulary is a really good way of getting feedback(反馈).

Try to respond to what people say to you. You can often get clues to what people think by looking at their body language. Respond to them in a natural way.

Try not to translate into and from your own language. It takes too much time and you will find it difficult to get an English answer right away. You don’t know how to do well. The more you want to act well, the more slowly you act. This will make you more shilly-shally.

If you forget a word, do what native English speakers do all the time,and say things that ‘fill’ the conversation. This is better than remaining completely silent. Try using ‘um’，or ‘er’，if you forget the word.

Don't speak too fast! It’s important to use a natural rhythm in speaking English, but if you speak too fast it will be difficult for people to understand you.

Try to relax when you speak and you’ll find that your mouth does most of the pronunciation work for you. Speak English at normal speed.

Final tips

—Try to become less hesitant and more confident.

—Don’t be shy to speak—the more you do it, the more confident you’11 become.

—Remember to be polite—use "please" and "thank you" if you ask someone to do something for you.

1.What is the passage mainly about?

A．Good ways of studying English well.

B．Suggestions on becoming a confident speaker.

C. Things to pay attention to when learning English.

D. How to correct your mistakes as you speak English.

2.How many tips does the author offer in the passage?

A. 9.B. 10.C. 11.D. 12.

3.The underlined word "shilly-shally" means in the passage ________.

A. sure about what to do

B. fast to make a good decision

C. successful in answering some questions

D. uncertain about how to express oneself

4.Which of the following will the writer agree with?

A. It’s not necessary to pay attention to others′body language.

B. It doesn’t matter that you forget a word when you are speaking.

C. When practising English, you must talk with native English speakers.

D. Native English speakers will correct your grammar mistakes when you speak.

In some Western countries, there are many opportunities for adults who want to improve their lives. There are public schools you can attend. In the schools, you can take things like English, arithmetic, and history. You can find classes in almost any subject you want to study. You may want to learn to type, sew, paint, or fix TV sets. You may want to learn more about trade you are already in. You may want to learn a new trade. You may want to get a high school diploma. You may even want to go to college. All it takes is time and effort.

In many cities, there are adult classes in the public schools. You can attend many of these classes without having to pay money. In some schools you may have to pay a small fee. There are also many kinds of private schools for adults.

In addition to schools, many industries and unions conduct on-the-job training programs. In these programs you hear about new ideas and learn new skills. Many large companies will send a worker to school if he or she has ability.

Many job opportunities are offered to those who wish to work. It helps if you know more than one language. There are good jobs for interpreters and typists who know English and another language.

There are many good jobs in government. In most cases, you must be a citizen of this country, and you must take a civil service examination. These examinations are open to everyone, regardless of race, religion, or color.

For many civil service jobs you need a high school diploma. The person who does not have a high school diploma can get one. There are several ways. You can study high school subjects at home and then take special tests. If you pass the tests, then you get a diploma. Or you can go to night school. There are classes that prepare you to take special tests to earn a diploma.

You can attend a night school that grants a high school diploma if you complete certain courses. If you do this, you do not have to take the special test.

Be as well trained as you can. Get as much training as you can. Opportunity knocks at every door. Be sure that when it knocks at your door you are ready.

1.According to the article, if you want to live a better life, you have to get__________.

A. some time   B. an education    C. new ideas   D. new jobs

2.In many places, public schooling for adults is ____________________.

A. difficult    B. easy    C. free    D. new

3.What does this article tell us?

A. Civil service jobs are offered to everyone.

B. Only a citizen can apply for a government job.

C. Training programs are often poorly organized.

D. Large companies will send most of their workers to school.

4.We can see that___________________________________.

A. well-trained people are often out of work

B. typists who know English earn much more money

C. one can work on a high school diploma at home

D. the person without a high school diploma can also get a civil service job

5.The purpose of adults’ going to night school is to_______________.

A. take special tasks               B. complete certain courses

C. get more training               D. get a diploma

In some Western countries, there are many opportunities for adults who want to improve their lives. There are public schools you can attend. In the schools, you can take things like English, arithmetic, and history. You can find classes in almost any subject you want to study. You may want to learn to type, sew, paint, or fix TV sets. You may want to learn more about trade you are already in. You may want to learn a new trade. You may want to get a high school diploma. You may even want to go to college. All it takes is time and effort.
In many cities, there are adult classes in the public schools. You can attend many of these classes without having to pay money. In some schools you may have to pay a small fee. There are also many kinds of private schools for adults.
In addition to schools, many industries and unions conduct on-the-job training programs. In these programs you hear about new ideas and learn new skills. Many large companies will send a worker to school if he or she has ability.
Many job opportunities are offered to those who wish to work. It helps if you know more than one language. There are good jobs for interpreters and typists who know English and another language.
There are many good jobs in government. In most cases, you must be a citizen of this country, and you must take a civil service examination. These examinations are open to everyone, regardless of race, religion, or color.
For many civil service jobs you need a high school diploma. The person who does not have a high school diploma can get one. There are several ways. You can study high school subjects at home and then take special tests. If you pass the tests, then you get a diploma. Or you can go to night school. There are classes that prepare you to take special tests to earn a diploma.
You can attend a night school that grants a high school diploma if you complete certain courses. If you do this, you do not have to take the special test.
Be as well trained as you can. Get as much training as you can. Opportunity knocks at every door. Be sure that when it knocks at your door you are ready.
【小题1】According to the article, if you want to live a better life, you have to get__________.

Many people cannot start their day without first having a cup of coffee or tea．These drinks help them think clearly and feel more awake．This is because of caffeine，which helps to give a jump start to the nervous system．Now，a report says it may also boost long-term memory．

Mike Yassa is a neurobiology professor．He and other researchers wanted to know if caffeine could improve a person’s memory．He explains，“After you learn anything，it takes some time for that memory to strengthen．And over the first 24 hours is actually where most of the forgetting happens．So that is where we wanted to intervene with caffeine and see if we can help reduce this forgetting．”

They took 160 caffeine-free people and showed them pictures of everyday objects. These people were asked if the objects could be found inside the house， or outdoors．Then some of the subjects were given a caffeine pill．The others were given a placebo—a pill containing nothing. 24 hours later，the subjects were shown the exact same images from the day before．They were also shown images with slight differences，and some completely new images. Both groups correctly identified the exact same and completely new pictures．But those who took the caffeine pill were better at spottingthe pictures that were slightly different．

Professor Yassa says their answers helped to show the effects of caffeine on memory. And we find that if they are on caffeine they are much more likely to make the right decision．”

The amount of caffeine the researchers used in the study was similar to one cup of strong coffee．The researchers did not see any improvement to memory from smaller doses of caffeine or when it was given an hour before viewing the images．

1.What is the focus of the text?

A．Caffeine can make people addicted．

B．Caffeine can make people energetic.

C．Caffeine can improve long—term memory．

D．Caffeine can make people feel comfortable．

2.What does the third paragraph mainly talk about?

A．How the experiment was conducted．

B．Who took part in the experiment．

C．Which group of subjects did better．

D．What was used in the experiment．

3.In which section of a magazine can we read this text?

A．Culture． B. Technology． C．Health. D．Education.

4.Which of the following statements is NOT true?

A．Most forgetting occurs within the first 24 hours．

B．Forgetting can be positively affected by caffeine．

C．The subjects were given different pills．

D．Yassa was disappointed with the result．

5.What can we learn from the last paragraph?

A．More caffeine means better memory．

B．Smaller doses of caffeine doesn’t work．

C．The time to take cafieine doesn’t matter．

D．Caffeine is taken before the experiment．

We all know that we have to eat to live,so it is important for us to develop healthy eating habits. The following tips may help you.

Have a healthy attitude towards food. Take a hard look at your eating habits. 1       Do you withhold food from yourself in order to feel like you are in control? Carefully think about whether you have an unhealthy emotional attachment to food.

Drink plenty of water. 2       Drink water during and after meals to aid digestion,and try to drink 2 to 3  litters per day.

3       Ideally,you should eat three meals a day,with two snacks in between. Doing this allows you to eat slightly less at your meals,giving your body a more manageable amount of food to digest.

Don't skip breakfast. 4       Research shows that people who skip breakfast are usually fatter than those who eat a wellbalanced breakfast.

Eat slowly. Have you ever gorged on (猛吃) a huge meal and felt fine immediately after,but suddenly felt like exploding 15 minutes later? This happens because it takes some time for your stomach to tell your brain it's full. 5       In that way,by the time you get the message and start feeling satisfied,you haven't eaten too much extra food.

   A. Choose the right food to eat.

   B. Eat five times per day.

   C. You should eat your food slowly.

   D. Do you eat more when you feel stressed?

   E. Eating less food can have several benefits.

   F. Many people do because they don't feel hungry in the morning.

   G. It can improve your sense of healthiness and help you feel full.

1.              2.                  3.              4.          5.       

High school graduation is indeed important for the person concerned. It is usually marked by a party where friends and family present the person with gifts as a celebration. Below are some good choices for those who will go to college.
You can buy a folding bike. It is a good choice for a high school graduate going to college who may not have room to store a traditional bike. He or she will love moving around the school. It can be easily folded and carried, which would be great for those who often trip back home on weekends. You can also buy a Walkman. It is not expensive. The person can enjoy music while walking, exercising or studying. It can help improve one’s mood.
College is an important time for a person’s career. Many high school graduates know little about the fields they will enter. So why not buy the person a book on what to expect in college life? That way the person would be fully prepared for college. Also he or she can tell something about it to his or her classmates. It is a reality that knowledge is something that cannot be taken away. Healthy food is a major issue in college. Some students have to put up with the bad-taste food in the college dining hall. A refrigerator which can keep food fresh is an excellent choice.
In short, there are so many you can choose from as high school graduation gifts. So what gift are you planning to give to the bright young person?
【小题1】Why is a folding bike a good gift?_______

High school graduation is indeed important for the person concerned. It is usually marked by a party where friends and family present the person with gifts as a celebration. Below are some good choices for those who will go to college.

You can buy a folding bike. It is a good choice for a high school graduate going to college who may not have room to store a traditional bike. He or she will love moving around the school. It can be easily folded and carried, which would be great for those who often trip back home on weekends. You can also buy a Walkman. It is not expensive. The person can enjoy music while walking, exercising or studying. It can help improve one’s mood.

College is an important time for a person’s career. Many high school graduates know little about the fields they will enter. So why not buy the person a book on what to expect in college life? That way the person would be fully prepared for college. Also he or she can tell something about it to his or her classmates. It is a reality that knowledge is something that cannot be taken away. Healthy food is a major issue in college. Some students have to put up with the bad-taste food in the college dining hall. A refrigerator which can keep food fresh is an excellent choice.

In short, there are so many you can choose from as high school graduation gifts. So what gift are you planning to give to the bright young person?

1.Why is a folding bike a good gift?_______

2.How many great choices are mentioned in the text?________

3.Gifts for people who will go to college should be 　　　　.

4.What’s the text mainly about?_________

High school graduation is indeed important for the person concerned. It is usually marked by a party where friends and family present the person with gifts as a celebration. Below are some good choices for those who will go to college.
You can buy a folding bike. It is a good choice for a high school graduate going to college who may not have room to store a traditional bike. He or she will love moving around the school. It can be easily folded and carried, which would be great for those who often trip back home on weekends. You can also buy a Walkman. It is not expensive. The person can enjoy music while walking, exercising or studying. It can help improve one’s mood.
College is an important time for a person’s career. Many high school graduates know little about the fields they will enter. So why not buy the person a book on what to expect in college life? That way the person would be fully prepared for college. Also he or she can tell something about it to his or her classmates. It is a reality that knowledge is something that cannot be taken away. Healthy food is a major issue in college. Some students have to put up with the bad-taste food in the college dining hall. A refrigerator which can keep food fresh is an excellent choice.
In short, there are so many you can choose from as high school graduation gifts. So what gift are you planning to give to the bright young person?

1. 1.

   Why is a folding bike a good gift?

   1. A.
      Because it is convenient and takes up little space
   2. B.
      Because it can help students save more time
   3. C.
      Because it is environmentally friendly and cheap
   4. D.
      Because it is much lighter than traditional bikes
2. 2.

   How many great choices are mentioned in the text?

   1. A.
      3
   2. B.
      4
   3. C.
      5
   4. D.
      6
3. 3.

   Gifts for people who will go to college should be 　　　　

   1. A.
      useful
   2. B.
      cheap
   3. C.
      lovely
   4. D.
      fashionable
4. 4.

   What’s the text mainly about?

   1. A.
      How to celebrate high school graduation
   2. B.
      How to make college life easy
   3. C.
      What a good gift means to high school graduates
   4. D.
      What to buy for people who will go to college

Losing a job is considered one of the five most stressful life changes you can experience. Those who have been there say it feels like being robbed of your identity and is as painful as the loss of a loved one.

It may be hard to believe at first, but finally you can use this experience as your advantage—to find another, perhaps even better job, to strengthen your relationship with your family, and to make some much-needed changes in your life. Here are three essential steps.

Step1 Get emotional support. Because it’s easy to feel uneasy and vulnerable（脆弱), turning to others is the key to making a smooth transition(过渡). You’ll need people who will listen and provide a safe place for you to cry, or to express your fears and concerns.

Don’t go it alone. It takes courage to ask for help, and yet, help may be what you need most to move forward.

Step2 Seek professional guidance. Getting assistance from a recruiter（招聘人员) or career adviser will not only help you value your experience and improve your skills, it also will ensure that you put your best foot forward. Once again, your local unemployment office should have helpful resources.

If possible, try not to let fear cause you to grab the first new job you’re offered (unless it’s the right one). Give yourself time to explore different choices.

Step3 Consolidate family ties. Meet with family members to openly discuss your feelings. Listen carefully without interrupting one another, and give everyone a turn to speak. When a man I know did this with his family, his wife agreed to leave the job search planning to him and his outplacement adviser. In turn, he agreed to keep her informed about the process on a weekly basis. When you keep the lines of communication open, you can build stronger relationships.

Once you’ve got a new job, create your own security. Keep your resume up-to-date, stay in touch with recruiters about the job market, and constantly improve your skills to stay marketable in your field.

Although being laid-off can turn your life upside down, many people say that it gave them push they needed to start a new life!

1.What’s the author’s purpose of writing the passage?

A. To ask the family for help.

B. To stay in touch with recruiters in your field.

C. To deal with the hurt from losing a job.

D. To keep your resume up-to-date.

2.The underlined title “Consolidate family ties” probably means “________”.

A. find another better job for your family

B. strengthen your relationship with your family

C. make some much-needed changes in your family

D. create your own security to your family

3.Which of the following is true according to the passage?

A. Losing a job is stressful but is not so painful as the loss of a loved one.

B. Turning to others is the main key to obtaining deepest sympathy.

C. Asking for a career adviser will help you and improve your skills.

D. Keeping the lines of communication open can end your relationships.

4.We can infer from the passage that the author is most likely to ____________.

A. be a life coach

B. be a keeper of family ties

C. memorize his or her loved one

D. work in an employment agency

The concept of homeschooling is not a new one. Homeschooling means educating children at home instead of sending them to public or private schools. Nowadays, homeschooling has become popular in many countries for a variety of reasons. One of them is poor quality of education in public schools and it’s also because private schools are quite expensive. Some parents believe that because they know their child’s strengths and weaknesses, they can teach him or her better. Some parents prefer homeschooling so as to prevent their children from getting into bad company. There is another group of people who choose to educate their children at home because they want them to learn spirit and values of the family and also their religious beliefs. They also think that homeschooling would help in development of strong family bonds(家庭纽带).

However, there are some negative effects of homeschooling on students as well as parents.

Homeschooling is a full-time job and not fit for parents who have their own careers. It takes a lot of time for parents’ side to make homeschooling a success. Other family members’ responsibilities may also be affected. They may give their full attention to the needs of their children. Besides, a parent may have high educational qualifications, but that does not make him or her a good teacher. Teaching is an art, which requires the ability to understand the needs of the children. It is likely that the parent might have forgotten what he or she has learned, and the curriculum(课程) of the children would also be different. This would make it difficult for the parents to explain the concepts to their children. Parents also have the responsibility of designing the curriculum of students.

In today’s world, competition(比赛) is seen in every field, and school prepares children to face these competitions. However, homeschooling does not give the children a chance to compare with other kids. They will also not be aware of where they stand in educational position among their classmates. This may affect their future lives. Education is not the only thing that the children need to become successful human beings. It is necessary that they learn to communicate in the society, and public school provides them with such an environment, where they meet many people. Schools also provide children with a chance to take part in various activities to improve their overall development.

It is true that it has many benefits, but one must realize that school teaches children skills to face and survive.

Homeschooling

The concept of homeschooling is not a new one. Homeschooling means educating children at home instead of sending them to public or private schools. Nowadays, homeschooling has become popular in many countries for a variety of reasons. One of them is poor quality of education in public schools and it’s also because private schools are quite expensive. Some parents believe that because they know their child’s strengths and weaknesses, they can teach him or her better. Some parents prefer homeschooling so as to prevent their children from getting into bad company. There is another group of people who choose to educate their children at home because they want them to learn spirit and values of the family and also their religious beliefs. They also think that homeschooling would help in development of strong family bonds(家庭纽带).

However, there are some negative effects of homeschooling on students as well as parents.

Homeschooling is a full-time job and not fit for parents who have their own careers. It takes a lot of time for parents’ side to make homeschooling a success. Other family members’ responsibilities may also be affected. They may give their full attention to the needs of their children. Besides, a parent may have high educational qualifications, but that does not make him or her a good teacher. Teaching is an art, which requires the ability to understand the needs of the children. It is likely that the parent might have forgotten what he or she has learned, and the curriculum(课程) of the children would also be different. This would make it difficult for the parents to explain the concepts to their children. Parents also have the responsibility of designing the curriculum of students.

In today’s world, competition(比赛) is seen in every field, and school prepares children to face these competitions. However, homeschooling does not give the children a chance to compare with other kids. They will also not be aware of where they stand in educational position among their classmates. This may affect their future lives. Education is not the only thing that the children need to become successful human beings. It is necessary that they learn to communicate in the society, and public school provides them with such an environment, where they meet many people. Schools also provide children with a chance to take part in variety of activities to improve their overall development.

It is true that it has many benefits, but one must realize that school teaches children skills to face and survive.

Homeschooling

“If we can set it up so you can’t unlock your phone unless you’ve got the right fingerprint(指纹),” Barack Obama asked last Tuesday, “why can’t we do the same thing for our guns?” For this reasonable-sounding question, the president was applauded throughout the media.

As it happens, though, there is a good answer to this question: there is no market for guns that work just some of the time. Guns are simple things designed to operate as easily and reliably as possible. The introduction of electronics eats away this simplicity, and to a degree that is absolutely unacceptable to the consumer. As President Obama well knows, the fingerprint software on his phone works rather erratically: Often it takes a user two or three tries to log in; occasionally, it falls asleep deeply and obeys the password. When this happens on an phone, the user is mildly inconvenienced. If this were to happen on a gun, the user would be dead. There is a reason that modern smartphones put the camera function outside of the authentication(认证) process.

How could we possibly think that guns are the same as other commercial products? It is true that, say, cars have become considerably safer over the last few decades; true, too, that “research” has contributed to this improvement. But it matters enormously that a car is not intended to hurt people, and that in a perfect world nobody would ever be injured by one. Can we say the same of guns? Of course not. Guns are killing machines, designed explicitly to do damage to living things. In fact, they have no other purpose. As such, the salient question before any free people is not “are guns dangerous?”, they are, but “who gets them, and why?”

This is not to say that nothing at all can be done to improve public safety. On an individual level, gun owners should do everything to ensure that their guns are kept away from children, and, where possible, they should train themselves in case they are ever called upon to shoot in anger. At the national level, the combination of better policing and economic growth can help to reduce crime—and, indeed, it has. In 1993, gun crime was more than twice as common as it is now, and there were many fewer guns in circulation. Ugly as it is in its own right, that we have reached the point at which two-thirds of all guns-related deaths are deliberately self-inflicted is a small victory.

How to address those deaths that remain? That is a tricky one. I do not know the answer, and nor, frankly, does anybody else. But selling fantasies to the ignorant is not going to cut it.

1.What does the writer mainly argue in this passage?

A. Gun crime has been greatly reduced.

B. The idea of smart guns is not realistic.

C. Gun control will not succeed in America.

D. Guns-related deaths deserve public attention.

2.The underlined word “erratically” in Paragraph 2 probably means ________.

A. with effectiveness

B. with passion and energy

C. in an unpredictable manner

D. in a reasonable and fair way

3.The writer supports his ideas in Paragraphs 2 and 3 mainly by ________.

A. analyzing statistics

B. presenting problems and solutions

C. quoting the authorities

D. making comparisons and contrasts

4.Which of the following might the writer NOT agree with?

A. Few know how to deal with guns-related deaths.

B. Efforts to improve public safety have partly paid off.

C. The nature of guns distinguishes them from other products.

D. Guns using fingerprint software can risk the lives of the users.

An hour in the morning is worth(值）two in the evening. Most of us know this. But

for some people,getting out of bed each morning is a daily challenge. It can trouble their lives.

Now, scientists from Flinders University in Australia believe they have found out why ： their body clocks are set too slow.

Professor Leon Lack studied people with delayed sleep disorder (睡目民延迟障碍）. These people have one thing in common：they are not able to fall asleep at night,nor wake up on time in the morning.

“Most people have a 24-hour body clock. It’s a natural rhythm(节奏）that influences sleepiness. But for people with delayed sleep disorder, it takes longer to complete the 24-hour body clock. So they usually go to bed later and wake up later，” Lack told the Daily Mail.

A slower body clock influences up to 15% of teenagers,according to the Daily Mail. It causes them to be late for school. Even though they do get to school，they’re sleepy until their body clock wakes up.

Don’t worry! There are some ways to bring your body clock back faster. Body clocks can be changed by environment, such as light. Make sure you’re exposed (使暴露）to bright lights as early in the day as possible. It is a message to tell the body that it should be awake.

Also,stay away from the Internet and television for at least an hour before your bedtime. It helps you to relax before you fall asleep.

(    )31.    The    first    paragraph    tells us that it is_for    some    people    to get out of bed

in the morning.

A. exciting    B. difficult    C. impossible    D.    educational

(    )32.    People    with    delayed    sleep disorder_.

A. are not able to wake up on time in the morning

B. are not able to complete the 24-hour body clock

C. are able to get up as quickly as they can

D. are able to fall asleep at night as early as they can

(    )33.    Which is NOT the fact that a slower body clock may influence teenagers?

A. They are late for school more often.

B. They feel sleepy in the morning class.

C. They feel relaxed to study in the early morning.

D. They don’t feel energetic until later in the morning.

(    )34.    How many ways to bring your body clock back faster are mentioned?

A. One.    B. Two.    C. Three.    D.    Four.

(    )35.    From    the    passage,we can know that_.

A. morning is more important than evening

B. professor Leon Lack has delayed sleep disorder

C. it helps you to fall asleep if you’re exposed to bright lights

D. we can improve delayed sleep disorder by changing body clocks