17．As we know.DNA testing is very useful for crime fighting．But now crime fighters could have a new ——青夏教育精英家教网—

17．As we know，DNA testing is very useful for crime fighting．But now crime fighters could have a new tool at hand．Researchers have developed a cutting-edge （前沿的） technique to identify human hair．Their test is quicker than DNA analysis techniques currently used by the police．
DNA testing is commonly used for identification because DNA is unique to each individual．However，environmental and chemical processes can degrade（降解） DNA，limiting its usefulness over time．Protein （蛋白质） in hair，on the other hand，is more stable than DNA but can also have variations （变异体） that may be unique to the individual．
"Our analysis process can be used universally，"says Ms．Huang，"One of our samples even included dyed hair and the test was 100 percent accurate．The test was able to distinguish East Asians，Caucasians and South Asians．"
Dr．Beauchemin says she has got in touch with law enforcement agencies about using the new technology．She is also planning to collect more hair samples and continue her research with a goal of finding where exactly in the world hair sample is from，to look for more races and determine specific age．
"We are in a very similar place with protein-based identification to where DNA testing was during the early days of development，"said chemist Brad Hart．"This method will be a game-changer，and while we've made a lot of progress toward improving it，there are steps to go before this new technique is able to reach its full potential．"

64．What's the main purpose of the text？D
A．To analyze crime scenes．
B．To distinguish different races．
C．To show the usefulness of DNA testing．
D．To introduce a new identification method．
65．Which will be the most useful in identifying a person according to Brad Hart？B
A．Chemical materials．
B．Protein in hair．
C．DNA variations．
D．Blood sample．
66．What's the advantage of the protein-based identification over DNA testing？A
A．Stability．B．Popularity．C．Security．D．Convenience．
67．What can be inferred from the last paragraph of the text？B
A．DNA testing will soon reach its full potential．
B．Protein-based identification remains to be improved．
C．Protein-based identification has replaced DNA testing．
D．DNA testing develops as rapidly as protein-based identification．

16．A girl became a volunteer in the activities of Deathbed Care，which meant visiting and taking care of a patient suffering from an incurable disease with days numbered．
The girl was assigned to look after an old man suffering from cancer whose children lived abroad．Their living conditions were not satisfactory while the old man had a lot of savings．She was expected to comfort him and keep up his spirits．
Every Saturday the girl came on time to keep him company，telling him stories．When he was having an intravenous drip （静脉滴注），she would help massage his arms．The doctor found the patient much improved mentally．The old man began to involve himself actively in the medical treatment and he seldom shouted at others．
But something that happened made the doctor uneasy and puzzled．Each time the girl left，the old man would give her some money．The doctor did nothing to interfere （干涉），unwilling to offend the old man．A month later the old man showed evident signs of decline after suffering coma （昏迷） a few times．
When rescued from the latest coma，the old man told the doctor his last wish，"I have deep sympathy for the girl．Will you be kind enough to help her finish her studies？"
But the doctor knew that her family was welloff and she had no difficulty pursuing her studies．Sometimes she even came to the hospital in her father's car．
When the girl came at the weekend after the death of the old man，the doctor told her the bad news．She was very sad and burst into tears．Then she handed $ 500to the doctor，saying，"The old man had all along thought I came to do the job because of poverty．He gave me money so that I could continue my schooling．"Now he got the answer to the puzzle．In the last period of his life，the old man found it a real pleasure to be able to help a girl badly in need．

56．If you're a volunteer in the activities of Deathbed Care，what kind of people do you have to look after？C
A．The patients in need of help．
B．The people suffering from cancer．
C．The patients without many days left．
D．The people suffering from diseases．
57．What can we infer about the old man？C
A．He had a lot of savings．
B．He was suffering from cancer．
C．He often lost his temper before meeting the girl．
D．He asked the doctor to help the girl finish her study．
58．What can we know from the passage？D
A．The doctor told the old man the truth．
B．The old man's children were wealthy．
C．The girl's father encouraged her to accept the money．
D．The girl didn't accompany the old man when he died．
59．What is the real reason resulting in the old man's mental improvement？B
A．The girl's comfort and care．
B．The pleasure of being helpful to people in need．
C．People's understanding．
D．His children's progress．

15．He is a man of strong self respect，so he can't stand in public．（　　）

	A．	being laughed at		B．	laughing at
	C．	laughed at		D．	having been laughed at

14．We must find out ___________ Karl is coming，so we can book a room for him in advance．（　　）

13．Jane was walking round the department store．She remembered how difficult（61）it was to choose a suitable Christmas present for her father．She wished that he was as easy （62）to please （please）as her mother，who was always delighted with perfume．
Besides，shopping at this time of the year was not（63）a pleasant experience：people stepped on your feet or （64）pushed  （push）you with their elbows（肘部），hurrying ahead to get to a bargain．
Jane paused in front of a counter （65）where  some attractive ties were on display．"They are real silk，"the assistant tried to attract her．"Worth double the price．"But Jane knew from past experience that her （66）choice  （choose）of ties hardly ever pleased her father．
Jane stopped where a small crowd of men had gathered．She found some good quality pipes on sale．She did not hesiate for long：although her father smoked a pipe only once in a while，she knew that this was a present which was bound to please（67）him （he）．
When Jane got home，（68）with  her small but well-chosen present in herbag，her parents were already at table（69）having  （have） supper．Her mother was excited．"Your father has at last decided to stop smoking，"Jane （70）was told （tell）．

12．A balanced diet means the nutrition of three meals in a day should be balanced，and breakfast is very important to achieve that goal．Skipping breakfast （61）causes/will cause （cause）damage to health，apart from reducing work performance．（62）Studies  （study） have showed that if a person does not eat breakfast（63）regularly  （regular），he or she will be（64）at a higher risk of various diseases．
However，many people do not eat breakfast．A recent survey  shows  that 8.6 percent of people do not eat breakfast every day．The situation is even （65）worse  （bad） in poverty-stricken areas．
While most people are used to （66）eating （eat）  breakfast，the quality of their meal is in question----about 25 percent of people do not eat a homemade breakfast，（67）and more than 80 percent of people do not consume a healthy breakfast．
Children，women，and people living in poverty-stricken areas are most likely to be affected（68）when it comes to eating unhealthy breakfasts．However，old people（69）aged （age） above 60tend to have healthy breakfast，because  this group，mostly retired，have time and （70）patience （patient） to cook breakfast themselves．

11．Why do some people live to be older than others？You know the standard explanations：keeping a moderate diet，engaging in regular exercise，etc．But what effect does your personality have on your longevity（长寿）？Do some kinds of personalities lead to longer lives？A new study in the Journal of the American Geriatrics Society looked at this question by examining the personality characteristics of 246children of people who had lived to be at least 100．
The study shows that those living the longest are more outgoing，more active and less neurotic （神经质的） than other people．Long-living women are also more likely to be sympathetic（同情的） and cooperative than women with a normal life span．These findings are in agreement with what you would expect from the evolutionary theory：those who like to make friends and help others can gather enough resources to make it through tough times．
Interestingly，however，other characteristics that you might consider advantageous had no impact on whether study participants were likely to live longer．Those who were more self-disciplined，for instance，were no more likely to live to be very old．Also，being open to new ideas had no relationship to long life，which might explain all those bad-tempered old people who are fixed in their ways．
Whether you can successfully change your personality as an adult is the subject of a longstanding psychological debate．But the new paper suggests that if you want long life，you should strive to be as outgoing as possible．
Unfortunately，another recent study shows that your mother's personality may also help determine your longevity．That study looked at nearly 28，000Norwegian mothers and found that those moms who were more anxious，depressed and angry were more likely to feed their kids unhealthy diets．Patterns of childhood eating can be hard to break when we're adults，which may mean that kids of depressed moms end up dying younger．
Personality isn't destiny（命运），and everyone knows that individuals can learn to change．But both studies show that long life isn't just a matter of your physical health but of your mental health．

32．The aim of the study i the Journal of the American Geriatrics Society isA．
A．to see whether people's personality affects their life span
B．to find out if one's lifestyle has any effect on their health
C．to investigate the role of exercise in living a long life
D．to examine all the factors contributing to longevity
33．What does the author imply about outgoing and sympathetic people？D
A．They have a good understanding of evolution．
B．They are better at negotiating an agreement．
C．They generally appear more resourceful．
D．They are more likely to get over hardship．
34．What does the recent study of Norwegian mothers show？D
A．Children's personality characteristics are invariably（总是）determined by their mothers．
B．People with unhealthy eating habits are likely to die sooner．
C．Mothers'influence on children may last longer than fathers'．
D．Mothers'negative personality characteristics may affect their children's life spans．
35．What can we learn from the findings of the two new studies？B
A．Anxiety and depressionmore often than not cut short one's life span．
B．Longevity results from a combination of mental and physical health．
C．Personality plays a decisive role in how healthy one is．
D．Health is in large part related to one's lifestyle．

10．Over the past five decades，Chinese sports fans（61）have attached（attach） a lot of importance to gold medals while watching the Olympic Games．However，2016 Rio Olympic Games saw a （62）healthier （health） and more relaxed attitude toward sportspeople than before，（63）fully（full） in line with the Olympic spirit．
China didn't win any gold medals on the first day．But，instead of （64）blaming（blame） the sportsmen and women that failed to finish on top of the podium，the（65）majority（major） of fans praised their efforts．
Defending champion Sun Yang failed （66）to win（win） the gold in the men's 400-meter freestyle．However，he received many words of comfort and understanding from Chinese sports fans，（67）whohad seen how hard he had worked．
Swimmer Fu Yuanhui won fans'hearts，even if she could only win a bronze medal in the 100m backstroke final．（68）Her（she） fans on microblogging platform Sina Weibo have increased from 100，000（69）toover 6million．Most sports fans showed their（70）appreciation（appreciate） of her straightforward character．

9．In London，there are many so-called pop-up shops（流动商店）．Why they get such a name is that they are just temporary（61）arrangements（arrange）．
Pop-up shops first appeared in the UK in the early 2000s．They were（62）originally（origin）a way for small companies to rent small space in great locations．
In 2008，many businesses had to shut down．Shops and some offices（63）were left（leave）empty when people stopped （64）running（run） them．Smart businessmen occupied some of them quickly because they could start a business with much （65）lower（low） risk．The temporary nature of a pop一up gave them the opportunity（66）to test （ test） a product and develop a customer base．Being small made （67）iteasier for pop-ups to expand if they were successful．
Pop-up shops can take many different forms．They might be temporary shops in the high street or a shopping centre．T hey might be simple market stalls．According to a 2014 report made （68）bythe Centre of Economic and Business Research，the pop-up industry was worth￡2.1 billion（69）andit is expected to grow by 8.4% this year．
Almost anything （70）that can be on a high street can also be a pop-up．In an age of fastchanging habits，the pop-up idea might be here to stay．

8．随着我国经济的发展与对外开放程度的提高，越来越多的学子走出国门留学深造．根据下面的提示，请你以"Studying Abroad"为题，写一篇100左右的演讲稿．
内容提示：
1．出国留学的优点：开阔视野；体验当地的风情；交更多的朋友；更快更好地掌握一门外语．
2．出国留学的缺点：语言障碍不利于学习；费用高昂；而花大量时间打工又会影响学习．
参考词汇：语言障碍language barrier；足够的adequate
Studying Abroad
The topic of my speech today is"Studying Abroad"．
Attending schools abroad has many advantages．Firstly，by looking at our own country from outside，we can widen our vision and broaden our minds．（高分句型一）Secondly，we can visit famous scenic spots and make friends with the local people．Thirdly，we can use the foreign language in our daily life so that our ability in the second language may be improved quickly．（高分句型二）
However，there are also some disadvantages in attending a foreign school．The most serious problem is the language barrier．Most students do not have adequate knowledge of the language spoken there．On arriving there，they find it difficult to understand what the teachers are saying．Furthermore，the cost of living is much higher than that in our country，so most students have to find part time jobs to support themselves．Faced with these difficulties，many students find themselves unable to pay full attention to their studies and learn little．（高分句型三）
On the whole，it is a good thing to study abroad．However，one must not lose sight of the disadvantages．
Thank you for your listening．．

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