1、--Can't you stay a little longer?
--It's getting late. I really________ go now. My daughter is home alone.
A.can
B.could
C.might
D.must
2、--- Which sport is the most popular in the US?
--- It’s hard to say. It largely ____ what you mean by “popular”.
A. comes about B. belongs to
C. determines on D. depends on
3、No child under 12 is allowed to go to the lake alone; any walk close to the lake ________by a parent.
A.must be accompanied
B.must accompany
C.can be accompanied
D.should accompany
4、The reason ______ girls outperform boys at all levels of education is ______ girls mature faster than boys and are more disciplined and conscientious.
A.why, because B.how, that C.how, because D.why, that
5、 sweet, the food should be made by adding more sugar.
A.Tasting B.Taste C.Tasted D.To taste
6、— Could you help me take care of my pet dog on the 19th?
— I’m afraid I’m not ____________ that day.
A. vacant B. sufficient C. available D. convenient
7、— I’m still working on my project.
— Oh, you’ll miss the deadline. Time is _______.
A. running out B. coming out
C. using out D. going out
8、To be honest, she had a great ______ for the small town where she grew up.
A. effect B. effort
C. affection D. patience
9、People with simple names enjoy quicker career advancement because names which are hard to pronounce inspire negative ________ from superiors.
A. considerations B. consequences
C. expectations D. reactions
10、—I just love living here in London. I mean, the culture, the parks, the restaurants...
— , it's not the cheapest place to live.
A.To put it another way
B.To be fair
C.To put it simply
D.To make things worse
11、Each soldier and sailor________ given a rifle when the ship landed.
A.were B.was C.are D.is
12、The criminal, as well as some ________ people, was arrested by the police yesterday.
A.relevant
B.skilled
C.released
D.lucky
13、All rights _________, no one is allowed to copy or use this paper for other commercial purposes.
A. preserved B. received
C. revised D. reserved
14、I gratefully ______ financial support from several local businesses.
A. contradict B. recommend
C. distribute D. acknowledge
15、He ________courage to make an apology.
A.is lacking in B.lies in C.loses himself in D.is linked to
16、5G technology will ______ 15.2 trillion yuan _______ China’s digital industry between 2020 and 2025, Science and Technology Daily reported on August 28.
A.contribute, to B.adjust, to C.leave, behind D.balance, against
17、Not only _____ effective in reducing fever and helping stop pain. but there are also other things that aspirin can help with.
A.aspirin has proved B.aspirin proved C.has aspirin proved D.did aspirin prove
18、It is well-known that crack cocaine is a powerfully _____ drug and the users become ____ to it much more easily if they smoke it.
A.addicted; addict B.addictive; addict C.addicted; addictive D.addictive; addicted
19、—Why do the researchers sometimes have to climb so high?
—As far as I know, _____________on the top of the mountain is a certain wild plant said to have some medical value.
A.grown B.growing C.being grown D.having grown
20、The urgent situation required that we ________ an immediate decision.
A.should make B.made C.have made D.had been made
21、It is _____ he often breaks the schools rules _____ makes his teacher unsatisfied with him.
A. what; that B. that; what
C. that; that D. which; that
22、They don't allow ______ here.That is to say,we are not allowed _____ here.
A.to smoke; to smoke B.smoking; smoking
C.to smoke; smoking D.smoking; to smoke
23、Most people said that pay was their main ______________ for working.
A. movement B. mention
C. method D. motivation
24、I was just talking to Margaret when Jackson _____________.
A.cut in
B.cut down
C.cut out
D.cut up
25、The people trapped in the ruins ____________ that rescue teams ____________ here without delay.
A.desire; are sent B.desiring; were sent
C.desire; be sent D.desiring; be sent
26、Shopping centers,stadiums and universities may soon have a new tool to help fight crime.
A California company called Knightscope says its robots can predict and prevent crime. Knightscope says the goal is to reduce crime by half in areas the robots guard.
William Santana Li is the chief executive officer of Knightscope. He says,"These robot security guards will change the world. Our planet has more than seven billion people on it. It's going to quickly get to nine billion people. The security equipment that we have globally is just not going to develop that fast. The company's Autonomous Data Machines can become the eyes and ears of law enforcement(执法)."
"You want them to be machines plus humans. Let. the machines do the heavy and sometimes dangerous work and let the humans do the strategic decision-making work,so it's always working all together."
The machines do not carry weapons but they have day and night video cameras which are able to turn 360 degrees and can also sense chemical and biological weapons.
Some people may become concerned about their privacy, especially in connection with the video recordings. Some people may worry that such recordings will appear on the Internet. Eugene Volokh, a law professor at the UCLA School of Law, says the machines have to be used in the right way and it will be interesting to see how state laws deal with this kind of video.
William Santana Li says there is a long waiting list for the robots in the US. Workers in the company are working overtime to meet the demands of the market. At least 25 other countries are also interested in these robot security guards.
【1】What can this new tool do for humans?
A.Make strategic decisions.
B.Keep watching day and night.
C.Carry heavy weapons.
D.Stop crime autonomously.
【2】Why are some people worried about the new robots?
A.Their privacy may be let out.
B.The robots are very expensive.
C.Robots will replace humans.
D.They will be out of work soon.
【3】Which of the following can be the best title of the text?
A.Robots Are Becoming More Popular
B.Robots Contribute a Lot to the World
C.Robots Are in Great Demand Now
D.Security Robots Could Help Cut Crime
27、 Kind-hearted parents have unknowingly left their children defenseless against failure. The generation born between 1980 and 2001 grew up playing sports where scores and performance were played down because ‘‘everyone’s winner.’’ And their report cards sounded more positive than ever before. As a result, Stanford University professor Carol Dweck, PhD, calls them “the overpraised generation.’’
Dweck has been studying how people deal with failure for 40 years. Her research has led her to find out two clearly different mind-sets that have a great effect on how we react to it. Here’s how they work:
A fixed mind-set is grounded in the belief that talent is genetic—you’re a born artist, point guard, or numbers person. The fixed mind-set believes it’s sure to succeed without much effort and regards failure as personal shame. When things get difficult, it’s quick to blame, lie, and even stay away from future difficulties.
On the other hand, a growth mind-set believes that no talent is entirely heaven-sent and that effort and learning make everything possible. Because the ego (自尊) isn’t on the line as much, the growth mind-set sees failure as a chance rather than shame. When faced with a difficulty, it’s quick to rethink, change and try again. In fact, it enjoys this experience.
We are all born with growth mind-sets. (Otherwise, we wouldn’t be able to live in the world.) But parents, teachers, and instructors often push us into fixed mind-sets by encouraging certain actions and misdirecting praise. Dweck’s book, Mind-set: The New Psychology of Success, and online instructional program explain this in depth. But she says there are many little things you can start doing today to make sure that your children, grandchildren and even you are never defeated by failure.
【1】What does professor Dweck think about the generation in their thirties now?
A.They didn’t do well at school. B.They were often misunderstood.
C.They were eager to win in sports. D.They were given too much praise.
【2】What does a fixed mind-set person probably do?
A.He doesn’t want to work hard. B.He cares a lot about personal safety.
C.He doesn’t share his ideas with others. D.He succeeds with the help of teachers.
【3】What does the growth mind-set believe?
A.Admitting failure is shameful. B.Talent comes with one’s birth.
C.Scores should be highly valued. D.Getting over difficulties is enjoyable.
【4】What should parents do for their children based on Dweck’s study?
A.Encourage them to learn from failures. B.Prevent them from making mistakes.
C.Guide them in doing little things. D.Help them grow with praise.
28、You may be familiar with the following famous people, but have you heard of their graduation speeches, in which they either share their unforgettable experiences or give you some great inspiration.
● Michael Dell, University of Texas at Austin
And now you’ve accomplished something great and important here, and it’s time for you to move on to what’s next. And you must not let anything prevent you from taking those first steps... You must also commit to the adventure Just have faith in the skills and the knowledge you’ve been blessed with and go.
● J. K. Rowling, Harvard University
Half my lifetime ago, I was striking an uneasy balance between my ambition and the expectations from my parents who were not rich... But what I feared most for myself at your age was not poverty, but failure. The fact that you are graduating from Harvard suggests that you know little about failure. You might be driven by a fear of failure quite as much as a desire for success.
● Steve Jobs, Stanford University
Sometimes life’s going to hit you in the head with a brick. Don’t lose faith... Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work, and the only way to do great work is to love what you do. If you haven’t found it yet, keep looking, and don’t settle.
● Bill Gates, Harvard University
We need as many people as possible to have access to the advanced technology to lead to a revolution in what human beings can do for one another. They are making it possible not just for national governments, but for universities, smaller organizations, and even individuals to see problems, see approaches and deal with the world’s inequities (不公平) like hunger, poverty and so on.
【1】What Michael Dell said is to encourage us to ________.
A.love our work
B.listen to expectations
C.follow our dreams
D.follow others’ example
【2】When she was in university, J. K. Rowling was afraid ________.
A.to dream
B.to fail
C.of being poor
D.of being hungry
【3】What does Bill Gates suggest students doing?
A.Making contributions to their own country.
B.Taking responsibility for their own behavior.
C.Helping solve some global problems together.
D.Mastering as much advanced technology as possible.
29、One day in summer, as Terry passed through the crossroads, a truck ran a red light, crashing into his car violently, throwing him out of his seat belt and sending him flying five meters through the air. Within minutes, Terry’s unconscious body was picked up by the medical workers at the side of the road. Noticing his skin had taken on a deep blue color — indicating a lack of oxygen — the medical workers put a pipe down Terry’s throat, and he was rushed to nearby Oshawa General Hospital. “ By the time Terry came in, we were ready and waiting for him, ” said Marianne Timmermans, one of the nurses who initially worked on him. He was in severe condition.
Moments later, police arrived with the news. Lorraine, Terry’s wife, remembered seeing him in the Intensive Care Unit for the first time after the accident. There was nothing but ma-chines all over him. He wasn’t a pretty sight. He lay deep in a coma (昏迷). But Terry’s powers of recovery were as unbelievable as his injuries seemed to be. Three weeks after being thrown from his vehicle, he came out of his coma. Although he was by all appearances intact, Terry would soon reveal an injury far more severe than whatever damage had been done to his body.
When Terry awoke from his coma, he had been all but reduced to the level of a child. Everything from his ability to talk and walk to his understanding of what it meant to be a husband and a father seemed gone. Much as Terry had a problem, he never gave up and he also had the support of his family, marked by small victories and a renewed bond between him and his three daughters when they taught him how to play football again.
It has taken years to rebuild his shattered life, but today, more than 20 years since his playing days, Terry is a highly popular motivational speaker. He tells his story of perseverance and courage and family’s support in his presentation Seize Each Day.
【1】Why did the car accident happen?
A.Terry drove his car too fast.
B.Terry didn’t fasten his seat belt.
C.The truck driver didn’t obey the traffic law.
D.The driver lost control of his truck.
【2】What is paragraph 2 mainly about?
A.Lorraine’s care for Terry.
B.The police’s response to the accident.
C.Terry’s health progress after the accident.
D.Terry’s effort to recover from injuries.
【3】What can we learn about Terry now from the text?
A.He has lost the ability of talking and walking.
B.He owes success to his family and his determination.
C.He finds it hard to get along well with his daughters.
D.He don’t bear the responsibilities of husband and father.
【4】What does the text mainly intend to tell us?
A.An inspiring story.
B.A successful father.
C.A harmonious family.
D.An extraordinary accident.
30、Learning to Accept
I learned how to accept life as it is from my father. _______, he did not teach me acceptance when he was strong and healthy, but rather when he was _________ and ill.
My father was _______ a strong man who loved being active, but a terrible illness _______ all that away. Now he can no longer walk, and he must sit quietly in a chair all day. Even talking is _______. One night, I went to visit him with my sisters. We started _______ about life, and I told them about one of my_______. I said that we must very often give things up _______ we grow --- our youth, our beauty, our friends --- but it always _______ that after we give something up, we gain something new in its place. Then suddenly my father ________ up. He said, “But, Peter, I gave up ________! What did I gain?” I thought and thought, but I couldn’t think of anything to say. ________, he answered his own question: “I ________ the love of my family,” I looked at my sisters and saw tears in their eyes, along with hope and thankfulness.
I was also ________ by his words. After that, when I began to feel irritated (愤怒的) at someone, I ________ remember his words and become ________. If he could replace his great pain with a feeling of love for others, then I should be ________ to give up my small irritations. In this ________, I learned the power of acceptance from my father.
Sometimes I ________ what other things I could have learned from him if I had listened more carefully when I was a boy. For now, though, I am grateful for this one ________
【1】A.Afterwards B.Therefore C.However D.Meanwhile
【2】A.tired B.weak C.poor D.slow
【3】A.already B.still C.only D.once
【4】A.took B.threw C.sent D.put
【5】A.impossible B.difficult C.stressful D.hopeless
【6】A.worrying B.caring C.talking D.asking
【7】A.decisions B.experiences C.ambitions D.beliefs
【8】A.as B.since C.before D.till
【9】A.suggests B.promises C.seems D.requires
【10】A.spoke B.turned C.summed D.opened
【11】A.something B.anything C.nothing D.everything
【12】A.Surprisingly B.Immediately C.Naturally D.Certainly
【13】A.had B.accepted C.gained D.enjoyed
【14】A.touched B.astonished C.attracted D.warned
【15】A.should B.could C.would D.might
【16】A.quiet B.calm C.relaxed D.happy
【17】A.ready B.likely C.free D.able
【18】A.case B.form C.method D.way
【19】A.doubt B.wonder C.know D.guess
【20】A.award B.gift C.lesson D.word
31、 For me, two of the loveliest words in English are “Life persists”.
I ________ them years ago as a college student, sitting in the library, ________, working on a paper. Out of nowhere, those words came ________ off the page in a quote, “In the midst of death life persists, in the midst of ________ truth persists, in the midst of darkness light persists.”
Suddenly I wasn’t unhappy and impatient any more. Then I ________ my granddad. I loved to talk with him. And I was ________ to hear what he’d think of it. He had poor hearing, so I had to ________ it a few times, but once he ________ it, he laughed. “All I can say to that is totally ________,”he said on the phone. I told him how glad I was, after a long winter, to finally see spring and ________ to find that quote. “Why is that?” he asked. “Well, spring is a sure _________ that life persists. And it just makes me________. ”
He laughed again, and then ______ his lovely voice, he recited for me his________“spring time” words, “The desert shall rejoice(高兴) and blossom(开花) like the rose … even with_________ and singing.”
Many years later, ________ my husband and I drove across a desert with many wildflowers and blooming cactuses (仙人掌), I could _________ hear my granddad laughing, “The desert shall rejoice.”
Life persists, and so do we, in the silence of _________ and the blooming of cactuses; and in the dead of _________ and the green of spring. Spring _________ us that we’re alive forever.
【1】A.looked for B.picked out C.came across D.made up
【2】A.worried B.bored C.tired D.confused
【3】A.running B.dancing C.rushing D.moving
【4】A.fear B.thrill C.anxiety D.lie
【5】A.called B.visited C.consulted D.informed
【6】A.desperate B.confident C.upset D.patient
【7】A.copy B.print C.repeat D.recite
【8】A.made B.got C.undertook D.managed
【9】A.puzzlement B.doubt C.agreement D.disapproval
【10】A.practically B.naturally C.obviously D.especially
【11】A.way B.sign C.remark D.evidence
【12】A.astonished B.energetic C.merry D.alive
【13】A.in B.with C.of D.beyond
【14】A.impressive B.extraordinary C.classic D.favorite
【15】A.joy B.sorrow C.sympathy D.adaptation
【16】A.after B.although C.until D.when
【17】A.hardly B.always C.mostly D.almost
【18】A.desert B.words C.world D.journeys
【19】A.spring B.winter C.summer D.autumn
【20】A.comforts B.guarantees C.reminds D.strikes
32、 I recently asked for a raise from a friend and she agreed.
I met her at a playground, and told her I ______ another child in addition to my two during the week, and that I wanted to ______ it. She was actually looking for low-key care like that for her 2-year-old and the following week she ______. I threw out a _______ price. I don’ t know why really, I just tend to do that sort of thing.
After weeks passed, I ______ it wasn’t making much sense for me ______ to continue and I had to address it. In a text I told her I needed to up the price a bit. I _______that the number we ________ agreed on wasn’t covering my time and expenses. I threw out the amount I thought was _______ and fair, and do you know what I said next?
Thank you.
“Thank you for letting me feel________enough to be honest.”
What I really wanted to say was sorry. My_______ was the exact thing I wanted to________ for, but I didn’t.
Normally I would have but I consciously ______ “sorry” with “thank you”. This___________ made me feel so much more ______. At first I was surprised that word choice could have so much _______ over my feelings, but then it occurred to me that it’s not just my ______ that changed, but the actions I take before speaking them. ____________ trying to obtain bits of _______ in apologies, I give them to myself. I no longer wait to be ______ when I’ve done nothing wrong and I feel a greater sense of confidence and worth. I’ve found the more I honor myself, the more others honor me, too.
【1】A. adopted B. watched C. punished D. examined
【2】A. expand B. expose C. complete D. challenge
【3】A. gave up B. set off C. came over D. passed by
【4】A. low B. full C. fixed D. reasonable
【5】A. admitted B. realized C. believed D. understood
【6】A. faithfully B. secretly C. officially D. financially
【7】A. reflected B. imagined C. explained D. described
【8】A. partly B. nearly C. privately D. originally
【9】A. cheap B. worthwhile C. accurate D. important
【10】A. open B. happy C. grateful D. powerful
【11】A. pride B. freedom C. honesty D. justice
【12】A. seek B. fight C. stand D. apologize
【13】A. mixed B. replaced C. combined D. compared
【14】A. switch B. thought C. method D. state
【15】A. ashamed B. confident C. determined D. disappointed
【16】A. pressure B. attention C. influence D. intelligence
【17】A. words B. plans C. dreams D. ideas
【18】A. As to B. Other than C. Apart from D. Rather than
【19】A. complaint B. security C. approval D. solution
【20】A. refused B. repeated C. followed D. pardoned
33、 I must have been asked a hundred times about my messed-up timing for my two-month journey back to Canada, and then ______ back to China just as the weather is turning nice in Toronto.
Well it was not for the weather, I could have satisfied any ______ for winter scenery with a quick trip to Harbin. I must ______ I did enjoy getting out snowshoeing with my siblings but the real reason was to ______ my Mom’s 90th birthday in early March. I also ______a brother’s 60thbirthday as well as several______ with friends and family.
Why did I ______? Simply put stubborn determination, good friends and a ______ desire to enjoy more of the sights and culture of China. ______ I still cannot have a conversation in Chinese, I am ______ to continue with my studies until such time that I can. While that is a long way off I do ______ continued improvement in both the way I study and the progress that I make.
May 10, I ______ out in a gym for the first time in China. It is a small place but we had a(n) ______ enjoyable visit including the use of enough exercise ______. It feels good to be back into a ______ again. At my age working out is designed to ______ good health and maintain the ______ to travel and enjoy life. I already have two social ______ on my schedule, plus I am excited about the ______ to watch part of the Xiamen Dragon Boat Race on May 25 & 26. Life in China is good to me ______, what can I say.
【1】A.passing B.dating C.bringing D.heading
【2】A.requirement B.desire C.curiosity D.need
【3】A.claim B.declare C.admit D.announce
【4】A.celebrate B.bless C.wish D.congratulate
【5】A.attended B.participated C.joined D.prepared
【6】A.ceremonies B.visits C.discussions D.conferences
【7】A.go B.come C.return D.arrive
【8】A.little B.new C.simple D.burning
【9】A.Above all B.Now that C.As though D.Even though
【10】A.scared B.determined C.worried D.exhausted
【11】A.see B.expect C.predict D.show
【12】A.broke B.ran C.worked D.figured
【13】A.suddenly B.abruptly C.nearly D.amazingly
【14】A.machine B.equipment C.device D.load
【15】A.routine B.schedule C.timetable D.plan
【16】A.serve B.reserve C.observe D.preserve
【17】A.approach B.mystery C.ability D.competition
【18】A.appointments B.settlements C.documents D.assessments
【19】A.bonus B.idea C.opportunity D.imagination
【20】A.in addition B.in general C.on average D.after all
34、阅读短文,根据短文内容及首字母提示,在空白处填入一个适当的单词。
Wearing face masks during the COVID-19 pandemic p【1】 the spread of the deadly virus. But it is also i【2】. For one, we can no longer unlock our phones using facial recognition since a good part of our face is c【3】.
F【4】, tech companies are working to solve the problem. Apple, for example, offered a new way to unlock your iPhone and iPad with its l【5】 software update, iOS13.5, w【6】 was released on May 20.
Even though the update still won’t recognize your masked face, it makes the whole process f【7】. While the old system wouldn’t allow access t【8】 the passcode screen before three failed face scan attempts, iOS13.5 will send you straight to the passcode screen when you swipe up.
It might only s【9】 you a few seconds, but those few seconds “benefit public health by eliminating the temptation for people to r【10】 their masks in order to unlock their device”.
35、课文填空
Yet, some people are【1】 They claim that surfing the Internet is a waste of time. They make the 【2】 that children spend too much time chatting and playing games instead of 【3】 on their school work. However, a recent survey conducted in the USA shows that 80 per cent of Internet users 【4】 it mostly to search for answers to questions. The second most common use of the Internet, for 79 per cent of Internet users, is to find out information about hobbies. These statistics prove that gathering information is the 【5】 use for the Internet.
36、Directions: Complete the following passage by using the words in the box. Each word can only be used once. Note that there is one word more than you need.
Expressions about water are almost as common as water itself. But many of the expressions using water have unpleasant meanings.
The expression “to be in hot water” is one of them. It is a very old expression, which can be 【1】 back to 500 years ago. The expression is used to mean being in trouble. One story says it got that meaning from the custom of throwing extremely hot water down on enemies attacking a castle.
Being in “deep water” is almost the same as being in “hot water”. When you are in deep water, you are in a difficult 【2】. Imagine a person who cannot swim being thrown in water over his head. You are in deep water when you are facing a problem that you do not have the ability to solve. The problem is too deep. You can be in deep water, for example, if you invest in stocks in complete 【3】 of the stock market.
"Water over the dam" is another expression about a past event. It is something that cannot be 【4】. The expression comes from the idea that water that has 【5】 a dam cannot be brought back again. When a friend is 【6】 by a mistake she has made, you might tell her to forget about it. You say it is water over the dam.
Another common expression, "to hold water," is about the strength or weakness of an idea or opinion that you may be arguing about. It probably comes from the way of testing the 【7】 of a container. If it can hold water, it is strong and has no holes in it. If your 【8】 can hold water, it is strong and does not have any holes. If it does not hold water, then it is weak and can not be 【9】.
"Throwing cold water" also is an expression that deals with an idea or 【10】. For example, you want to buy a new car because the old one has some problems. But you wife "throws cold water" on the idea, because she says a new car costs too much
37、阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
Everyone has their own unique fingerprint; 【1】 makes fingerprints an ideal way to unlock smartphones. However, this may be 【2】 (safe) than we think.
Scientists at New York University and Michigan State University in the US have developed a set of fake fingerprints. They say that the prints 【3】 unlock any fingerprint-enabled smartphone up to 65 percent of the time.
The artificial fingerprints 【4】 (create) by using many common features found in human prints. They work 【5】 taking advantage of the way smartphone scanners check a fingerprint.
The fingerprint scanners 【6】 (use) in smartphones are so small that they only read parts of fingerprints. So they have to take many scans of your finger or thumb (拇指) 【7】 they work properly. Smartphones also let users save several finger and thumbprints. Since a print only has to match one of the saved images 【8】 (unlock) the phone, the scanner is more likely to make mistakes.
Although the scientists have only tested their findings in computer simulations (模拟), 【9】 (worry) about the safety of using fingerprints are reasonable .They warn that the technology used to create artificial fingerprints is improving 【10】 (extreme) fast.
38、假如你是李华,美国一所学校将于今年暑假组织学生来你校访问。你作为一名志愿者,代表全家写信给你的朋友Linda ,欢迎她的到来,并邀请她住在你家,并告知有关事宜。信的要点如下:
1.上午:参加学校组织的活动:参观校园,观看毕业生典礼等。
2.下午:游览市区和名胜古迹。
3.晚上:看电视,玩游戏,聊天。
注意:1. 词数100左右。
2. 可以适当增加细节,以使行文连贯。
Dear Linda, ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Yours sincerely,
Li Hua
39、Directions: Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.
The Possible Health Dangers of Air-conditioners
Although many of us may feel air-conditioners bring relief from hot, humid or polluted outside air, they pose many potential health hazards. Much research has looked at how the movement of air inside a closed environment—such as an office building—can spread disease or expose people in the building to harmful chemicals.
One of the more widely publicized dangers is that of Legionnaire’s disease, which was first recognized in the 1970s. This was found to have affected people in buildings with air-conditioning systems in which warm air pumped out of the system’ cooling towers was somehow sucked back into the air intake, in most cases due to poor design. The warm air, filled with bacteria, was combined with cooled, conditioned air and was then circulated around various parts of the building. Studies showed that even people outside such buildings were at risk if they walked past air exhaust pipes.
Large air-conditioning systems add water to the air they circulate by means of humidifiers. In older systems, the water used for this process is kept in special reservoirs, the bottoms of which provide breeding grounds for bacteria which can find their way into the ventilation system. The risk to human health from this situation has been highlighted by the fact that the immune systems of approximately half of workers in air-conditioned office buildings have developed the ability to fight off the organisms found at the bottom of system reservoirs. But chemicals called “biocides” are added to reservoirs to make them germ-free, and they are dangerous in their own right in sufficient quantities, as they often contain compounds strongly linked to cancers.
Finally, it should be pointed out that the artificial climatic environment created by air-conditioners can also affect us. In a natural environment, whether indoor or outdoor, there are small variations in temperature and humidity. Indeed, the human body has long been accustomed to these normal changes. In an air-conditioned living or working environment, however, body temperatures remain well under 37℃, our normal temperature. This leads to a weakened immune system and thus greater exposure to diseases such as colds and flu.
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40、假如你叫李华,一名池州一中的学生,同时也是环境保护的志愿者。请根据以下内容为《池州日报》写一封英文倡议书,倡议池州市区中学生选择共享单车作为交通工具。倡议书内容:
1. 私家车、出租车和公交车的普及使用增加了道路负担,加剧环境污染;
2. 选择共享单车出行的好处;
3. 提出呼吁。
注意:1. 词数100左右;
2. 可以适当增加细节,以使行文连贯;
3. 开头已给出,但不计入总词数。
注:共享单车 a shared bike
Dear Fellow Students,
Yours sincerely,
Li Hua
41、假定你是学生会主席李华,五一假期期间,你将负责带你校留学生去爬崂山。请写一个书面通知,内容包括:
1.集合时间、地点;
2.注意事项。
注意:1. 词数80左右;
2. 可以适当增加细节,以使行文连贯。
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