18． students are practicing English with each other at the English corner．( )A．The number——青夏教育精英家教网——

18．_____ students are practicing _____ English with each other at the English corner．（　　）

	A．	The number of； to speak		B．	A great deal of； spoken
	C．	A great many； speak		D．	A number of； speaking

17．When you are little，the whole world feels like a big playground．I was living in Conyers，Georgia the summer it all happened．I was a second grader，but my best friend Stephanie was only in the first grade．Both of our parents were at work and most of the time they let us go our own way．
It was a hot afternoon and we decided to have an adventure in Stephanie's basement．As I opened the basement door，before us lay the biggest room，full of amazing things like guns，dolls，and old clothes．I ran downstairs，and spotted a red steel can．It was paint．I looked beyond it and there lay even more paint in bright colors like purple，orange，blue and green．
"Stephanie，I just found us a project for the day．Get some paintbrushes．We are fixing to paint．"She screamed with excitement as I told her of my secret plans and immediately we got to work．We gathered all the brushes we could find and moved all of our materials to my yard．There on the road in front of my house，we painted big stripes （条纹） of colors across the pavement （人行道）．Stripe by stripe，our colors turned into a beautiful rainbow．It was wonderful!
The sun was starting to sink．I saw a car in the distance and jumped up as I recognized the car．It was my mother．I couldn't wait to show her my masterpiece．The car pulled slowly into the driveway and from the look on my mother's face，I could tell that I was in deep trouble．
My mother shut the car door and walked towards me．Her eyes glaring，she shouted，"What in the world were you thinking？I understood when you made castles out of leaves，and climbed the neighbors'trees，but this!Come inside right now!"I stood there glaring back at her for a minute，angry because she had insulted （侮辱） my art．
"Now go clean it up!"Mother and I began cleaning the road．Tears ran down my cheeks as I saw my beautiful rainbow turn into black cement．
Though years have now passed，I still wonder where my rainbow has gone．I wonder if，maybe when I get older，I can find my rainbow and never have to brush it away．I guess we all need some sort of rainbow to brighten our lives from time to time and to keep our hopes and dreams colorful．
62．What did the writer want to do when his mother came home？D
A．To introduce Stephanie to her．
B．To prevent her from seeing his painting．
C．To put the materials back in the yard．
D．To show his artwork to her．
63．In his mother's eyes，the writerB．
A．was a born artist                 B．always caused trouble
C．was a problem solver              D．worked very hard
64．The underlined word"rainbow"in the last paragraph refers toC．
A．the rainbow in the sky          B．the stripes on the pavement
C．something imaginative and fun   D．important lessons learned in childhood
65．It can be learned from the passage that parents should．D
A．encourage children to paint
B．value friendship among children
C．discover the hidden talent in children
D．protect rather than destroy children's dreams．

16．Don't run less hard．Don't run less often．Don't run less distance．And don't be persuaded by underpowered medical studies-a habit that really could harm your health．
I say this in response to a recent study suggesting that too much strenuous jogging shortens your life．The conclusions，published in the Journal of the American College of Cardiology，have received wide attention this week．
In fact，the main thing the study shows is that small samples produce unreliable estimates that cannot be reliably discerned（识别） from the effects of chance．And the main thing the reaction shows is that perhaps we are all a bit too quick to believe medical studies that tell us what we want to hear．
Let's start by taking a closer look at what the study actually says．The researchers asked Danish runners about the speed，frequency and duration（持续） of their workouts，categorizing 878of them as light，moderate or strenuous joggers．Ten years later，the researchers checked government records to see how many of them had died．
Happily，only 17had．While this was good news for the surviving runners，it was bad news for the researchers，because 17was clearly too few deaths to figure out whether the risk of death was related to running intensity（强度）．
However，the study claimed that too much jogging was associated with a higher death rate．At a literal level，the death rate was highest among those who ran the most and at the highest intensity．But the evidentiary basis for this claim is weak．It is based on 40people who were categorized as"strenuous joggers"-among whom only two died．
Needless to say，these two deaths do not add up to a statistically significant finding．Moreover，the researchers do not even report whether those two deaths were from causes that could plausibly be related to running．
The death rate among moderate joggers was also higher than that for light joggers，but given that there were fewer than 10deaths among either category，this difference could not be reliably discerned from the effects of chance．
To get a sense of what we are learning，let me recommend a careful review of the literature，written by Mr．Hutchinson，a physicist-turned-writer．
His conclusion："Running an hour a day is certainly no less healthy，and probably a bit healthier，than running less．"Armed with that more accurate assessment of the science，I hope to see you on the running trails．

71．The recent study about running shows thatB．
A．running is of great help to your health
B．running could do damage to your health
C．running enables you to live longer
D．running is neither good nor bad
72．The purpose of the recent study is toB．
A．report the number of deaths among 878Danish runners
B．find out whether the risk of death was linked with running intensity
C．compare the death rate between light and moderate joggers
D．prove that too much jogging could shorten your life
73．It can be inferred from the public reaction thatC．
A．only a small number of people paid attention to the recent study
B．people were glad that only 17people died among the runners
C．people tend to believe in some medical studies blindly
D．it takes a long while for people to accept the findings of some medical studies
74．All of the following were taken into consideration when the 878Danish runners were divided exceptD．
A．how often they run
B．how long their running lasts
C．how fast they run
D．how far they run
75．Which of the following will the writer most probably agree with？C
A．We should pay little attention to medical studies．
B．There's no point in developing the habit of running．
C．We should be cautious about what medical studies tell us．
D．Running will become popular in the near future．

15．Dear Mr．/Ms，
I would like to suggest that the starting time be changed at our school．Classes at Sebastian Valley Middle School simply start too early in the morning．Getting eight to nine hours of sleep each night is almost impossible when classes begin at 7：30am．In order to shower，dress，get organized，eat a quick breakfast，and meet the school bus by 6：45，I would have to get up at 5：45．
Early in the morning，students are too sleepy to learn well．Without enough sleep，young people cannot think clearly or enjoy learning．According to a report called"Are Students getting Enough Sleep？"From Sebastian Valley Times，"Sleepiness disturbs concentration，reduces short-term memory，and causes bad feelings．"
Researchers have learned that teens normally fall asleep and wake up later than adults．Teens who stay up late at night have trouble getting up early in the morning．Studies show that some schools have already adjusted school hours to better match the teen sleep cycle（周期），as a result，students in these school are learning better on the new schedule（时间表）．
Some of my classmates argue that starting school an hour later will prevent them from taking part in after-school athletic programs．A solution would be to carry out these programs before school instead of after school．The students who are involved in sports and clubs would continue to arrive at the usual time．The rest of the student body could get a little more sleep and arrive an hour later．
Teens usually have a later sleep cycle，and learn and behave better when rested．So I would like to suggest that we have a meeting to discuss the problem and listen to all the students'voice．
Thank you for considering this request（请求）!
61．In Tom's opinion，classes should begin atD．
A.6：45 B.7；30 C.8：00 D.8：30
62．A report from Sebastian Valley Times was mentioned in Paragraph 2to showB．
A．the popularity of Tom's school
B．the disadvantages of lacking sleep
C．the importance of athletic programs
D．the characteristics of the teen sleep cycle
63．As for athletic programs，Tom thinks thatD．
A．they are very difficult
B．they are a waste of time
C．they make most students sleepy
D．they may start early in the morning
64．Which of the following does Tom probably agree with？A
A．Sleep is food for the brain．
B．Books should be few but good．
C．Challenge is needed for success．
D．Early to bed makes a man healthy．
65．Tom wrote the letter mainly toA．
A．put forward a suggestion
B．send his congratulation
C．make an apology
D．express thanks．

14．The story began on a downtown Brooklyn street corner．An elderly man had fallen down while crossing the street，and an ambulance rushed him to the nearest hospital．There，when he came to now and again，the old man repeatedly called for his son．
From a worn letter located in his pocket，an emergency-room （急救室） nurse learned that his son was a sailor stationed in North Carolina Camp．Obviously there were no other relatives．
Someone at the hospital called the Red Cross office in Brooklyn，and a request for the son to rush to Brooklyn was sent．Because time was short-the patient was dying，so they found the young man and rushed him to the airport in time to catch the only plane that night enable him to reach his dying father．
It was dusk when the nurse took the tired，anxious sailor to the bedside．"Your son is here，"she said to the old man．She had to repeat the words several times before the patient's eyes opened．The medicine he had been given because of the pain from his heart attack made his eyes weak and only saw the young man in uniform（制服） standing outside the oxygen tent．He extended his hand．The sailor wrapped his strong fingers around the old man's，releasing a message of love and encouragement．The nurse brought him a chair，so the sailor could sit by the bed．
Nights are long in hospitals，but all through the night the young sailor sat there，holding the old man's hand and offering words of hope and strength．It was nearly dawn when the patient died．The sailor placed his lifeless hand he had been holding on the bed，and went to inform the nurse．
"Who was the man？"the sailor asked．
"He was your father．"the nurse answered surprisingly．
"No，he wasn't，"the sailor replied．"I never saw him before in my life．"
"Why didn't you say something when I took you to him？"she asked．
"I knew immediately there‘d been a mistake，but I also knew he needed his son，and his son just wasn't here．When I realized he was too sick to tell whether or not I was his son，I guessed he really needed me．So I stayed．"
Two days later a message came in that there had been two sailors with the same name and similar number in the Camp．Someone in the personnel office had pulled out the wrong record．
But the wrong sailor had become the right son at the right time．And he proved，in a very human way，that there are people who care what happens to their fellow men．

51．An emergency-room nurse found out that the old man's son was a sailorC．
A．by calling the Red Cross office in Brooklyn
B．because the old man repeatedly called for his son
C．from a letter found in the old man's pocket
D．from someone in hospital
52．In the hospitalC．
A．the nurse stayed by the old man's bed through most of the night
B．the dying man said a few words to his son
C．the son offered love in the last few hours of the old man's life
D．the old man knew the young man wasn't his son
53．The young sailor told the nurse that he was not the real son of the old manA．
A．after the old man died
B．when the nurse sensed something strange
C．before the sailor came to the nurse's station
D．when holding the old man's hand
54．The sentence"the wrong sailor had become the right son at the right time"in the last paragraph means thatB．
A．the sailor was wrong in fooling the dying old man
B．The sailor made the right decision about what he should do
C．the sailor told the real story about him and the old man
D．the right son hurried to the hospital in time．

13．A new study has found that African elephants appear to use darkness to avoid being seen or heard when raiding（搜索） farmland for food．The study Also showed that elephants carry out their food raids based on the appearance of the moon，or lunar cycle．Researchers believe the animals are doing this during the cover of darkness to avoid contact with human beings．
A report on the study appeared in the African Journal of Ecology．Rachel Grant teaches animal behavior at Anglia Ruskin University in England．She says elephants are cathemeral，meaning they are active both day and night．But she says，their raids on crops almost always take place at night．This suggests that the animals go near villages when they sense that their huge bodies are more difficult to see
Ms．Grant added that an elephant's knowledge of the higher risk of being discovered on moonlit nights could explain its behavior during the lunar cycle．
The study was carried out in and around Mikumi National Park in Tanzania．The park has one of the largest populations of wild elephants in Africa．It is about 300kilometers west of Dar es Salaam．
The researchers chose five villages near the wildlife area and counted how many times elephants raided crops． They found that few of elephant"raid nights"took place during a full moon．The amount of crop damage．also fell considerably during such periods．
Rachel Grant says some elephants have what she calls"an internally  arising biological rhythm（生物节律）"or they may be basing their decision-making on local conditions．In her words，"Many animals change their behavior according to varying light levels and the realizing  risk of raiding foods．"She says this rhythm is likely to be a partly evolved，partly learned response．
Ms．Grant says the behavior probably is found in elephant populations in countries other than Tanzania．She adds that information from the study could be used to protect farms from elephant damage．

56．What is the text mainly about？A
A．A new finding about elephant behavior．
B．The relationship between animals and humans．
C．Wild elephants living in Tanzania．
D．A wildlife protection program in Africa．
57．African elephants mostly carry out their food raiding at nightC．
A．for fear of the sunlight                 B．to find more food
C．so as not to be discovered              D．to avoid the hot weather
58．What does the underlined word"They"in Paragraph 5refer to？A
A．The researchers． B．The elephants． C．The crops． D．The villages
59．Ms．Grant believes that the biological rhythmsB．
A．only exist in elephants                 B．change with the living conditions
C．never change over time                  D．are all born with elephants
60．The finding of the study is helpful inD．
A．limiting the elephants'movements
B．increasing the elephants'population
C．changing the elephants'behavior
D．protecting the farmers'crops．

12．If you bought some candy months ago but never ate it．how can you tell whether it's still edible （可以吃的）？The easiest way is to check the"expiration date （保质期）"printed on the wrapper．If that date has already passed，you're likely to throw the candy away．But is that really necessary？
According to a report，tons of food is wasted each year．largely because people don't fully understand what expiration dates，o"use-by dates"，actually mean．
Food dating was introduced in the 1970s，because consumers wanted more information about the things that they were eating．When they first showed up．use-by dates were only supposed to indicate freshness because producers wanted their products to be tasted in their best conditions．However，most customers mistakenly believed that use-by dates indicated how safe the food was，and they still largely do．But the truth is that these dates aren't related to the risk of food poisoning or food-borne illness．according to Time News．
Eggs，for example，can still be eaten three to five weeks after purchase，even though the use by date is much earlier．When their use-by dates pass，strawberry juice may lose its red color and biscuits may lose their crunch  （松脆的口感） but they are not harmful．
To stop consumers from misinterpreting the date and reduce the waste，scientists are calling for a standard explanation to be printed following the use-by dates．
But this won't be a mistake that is easy to correct．since people have believed it for so long Another problem is that the quality levels of different foods change differently-some are still edible long after their use-by date while others are not．
As a result，food industry officials are now thinking of changing the use-by date to a date indicating when food is most likely to spoil．

51．Every year，tons of food is thrown away becauseB．
A．it is not safe to eat
B．it has passed use-by dates
C．the use-by dates are wrongly printed
D．it is no longer fresh
52．According to the text，use-by dates was first introduced toB．
A．reduce the waste of food
B．show whether the food was fresh
C．remind people to eat the food earlier
D．indicate the risk of food poisoning
53．The author gives examples in Paragraph 4to explain thatD．
A．eggs can be kept longer than their use-by dates
B．strawberry juice is harmful if it loses its color
C．biscuits will go bad if their use-by dates pass
D．some food is still edible after its use-by date
54．What does the underlined word"misinterpreting in Paragraph 5mean？C
A．making use of                         B．paying no attention to
C．understanding wrongly                  D．having no idea of
55．Which of the following is true according to Paragraph 6？A
A．It is hard to set a standard for food quality．
B．The food dating should be stopped．
C．Food industry is responsible for the food waste．
D．It's easy for people to accept the new standard．

11．A ___ person is likely to make and keep more friends．（　　）

10．Why don't you put _____ chair a litlle bit forward to get ______ better view？（　　）

9．We can imagine ______city like Beijing in_______ year 2030 will be more crowded than it is now．（　　）

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