New genetic analysis has revealed that many Amazon tree species are likely to survive human-made climate warming in the coming century, contrary to previous findings that temperature increases would cause them to die out. A study, 1 in the latest edition of Ecology and Evolution, reveals the 2 age of some Amazonian tree species -- more than 8 million years -- and 3 shows that they have survived previous periods as warm as many of the global warming imagined periods 4 for the year 2100.
The authors write that, having survived warm periods in the past, the trees will 5 survive future warming, provided there are no other major environmental changes. 6 extreme droughts and forest fires will impact Amazonia as temperatures 7 , the trees will stand the direct impact of higher temperatures. The authors 8 that as well as reducing greenhouse gas emissions to minimize the risk of drought and fire, conservation policy should remain 9 on preventing deforestation（采伐森林）for agriculture and mining.
The study disagrees with other recent researches which predicted tree species’ extinctions 10 relatively small increases in global average air temperatures.
Study co-author Dr Simon Lewis (UCL Geography) said the 11 were good news for Amazon tree species, but warned that drought and over-exploitation of the forest remained major 12 to the Amazon’s future.
Dr Lewis said: “The past cannot be compared directly with the future. while tree species seem likely to 13 higher air temperatures than today, the Amazon forest is being transformed for agriculture and 14 , and what remains is being degraded by logging, and increasingly split up by fields and roads.
“Species will not move as freely in today’s Amazon as they did in previous warm periods, when there was no human 15 . Similarly, today’s climate change is extremely fast, making comparisons with slower changes in the past 16 .”
“With a clearer 17 of the relative risks to the Amazon forest, we 18 that direct human impacts -- such as forest clearances for agriculture or mining -- should remain a key point of conservation policy. We also need more aggressive 19 to reduce greenhouse gas emissions in order to make minimum the risk of drought and fire impacts and 20 the future of most Amazon tree species.”
A．advertised B．described C．published D．presented
A．frightening B．surprising C．exciting D．interesting
A．still B．nevertheless C．however D．therefore
A．assess B．confirm C．forecast D．promise
A．particularly B．probably C．merely D．possibly
A．Since B．Although C．When D．If
A．rise B．change C．drop D．end
A．consider B．decide C．guarantee D．recommend
A．based B．built C．focused D．made
A．in relation to B．in response to C．in reply to D．in reference to
A．findings B．thoughts C．inventions D．writings
A．threats B．disadvantages C．embarrassments D．instructions
A．accept B．tolerate C．permit D．Require
A．farming B．planting C．catering D．mining
A．power B．influence C．desire D．violence
A．difficult B．clear C．easy D．important
A．belief B．direction C．understanding D．suggestion
A．doubt B．conclude C．calculate D．prefer
A．thought B．guidance C．protection D．action
A．secure B．advance C．sacrifice D．evaluate
完形填空（共20小题，每小题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从36---55所给的四个选项（A、B、C、D）中，选出最佳选项。
The first day of school our professor introduced himself and challenged us to get to know a new classmate. I stood up to 36 when a gentle hand 37 my shoulder. I turned around to find a wrinkled, little old lady looking up at me with a 38 .
She said, “Hi. My name is Rose. I’m eighty-seven years old. Can I give you a 39 ?” I laughed and enthusiastically responded, “Of course you may!” and she gave me a giant squeeze (an act of pressing).
“Why are y
ou in college at such a young, 40 age ?”I asked. “I always dreamed of having a 41 experience and now I’m getting 42 !” she told me.
Later, we became close friends. Every day we would leave class together and she 43 her wisdom and 44 with me. Over the course of the year, Rose became a (an) 45 icon（偶像） and she easily made friends wherever she went.
At the 46 of the term we invited Rose to speak at our football banquet. I’ll never forget what she taught us. When she was 47 , frustrated and a little embarrassed, she cleared her 48 and said, “We do not stop playing because we are old; we 49 old because we stop playing. There are only two secrets to staying 50 , being happy, and achieving success. You have to laugh and find 51 every day. You’ve got to have a dream. When you lose your dreams, you 52 .”
One week after graduation Rose died 53 in her sleep. Many college students attended her funeral in tribute to（悼念）the wonderful woman who taught us by 54 that it’s never too late to 55 all you can possibly be.
A．look around B．look back C．look down D．look up
A．hit B．felt C．touched D．knocked
A．surprise B．smile C．wonder D．pleasure
A．hand B．welcome C．hug D．gift
A．innocent B．golden C．happy D．valuable
A．college B．junior high school C．senior high school D．primary school
A．it B．that C．one D．them
A．course B．experience C．degree D．happiness
A．old B．great C．campus D．outgoing
A．end B．middle C．beginning D．top
A．invited B．appearing C．speaking D．introduced
A．nose B．face C．throat D．eyes
A．look B．prove C．grow D．stay
A．healthy B．young C．cheerful D．rich
A．humor B．goals C．dreams D．jokes
A．lose B．fail C．die D．disappoint
A．hopefully B．peacefully C．fortunately D．bitterly
A．experience B．example C．pleasure D．courage
A．be B．achieve C．gain D．do
完形填空(共20小题; 每小题1.5分，满分30分)
阅读下面短文，掌握其大意，然后从所给的 A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
I will never forget the year I was about twelve years old. My mother told us that we would not be 36 Christmas gifts because there was not enough money. I felt sad and thought, “What would I say when the other kids asked what I’d 37 ?” Just when I started to 38 that there would not be a Christmas that year, three women 39 at our house with gifts for all of us. For me they brought a doll, I felt such a sense of 40 that I would no longer have to be embarrassed when I returned to s
chool. I wasn’t 41 . Somebody had thought 42 of me to bring me a gift.
Years later, when I stood in the kitchen of my new house, thinking how I wanted to make my 43 Christmas there special and memorable, I 44 remembered the women’s visit. I decided that I wanted to create that same feeling of 45 for as many children as I could possibly reach. 
So I 46 a plan and gathered forty people from my company to help. We gathered about 125 orphans (孤儿) at the Christmas party. For every child, we wrapped colorful packages filled with toys, clothes, and school suppliers, 47 with a child’s name. We wanted all of them to know they were 48 . Before I called out their names and handed them their gifts, I 49 them that they couldn’t open their presents 50 every child had come forward. Finally the 51 they had been waiting for came as I called out, “One, two, three. Open your presents!” As the children opened their packages, their faces beamed and their bright smiles 52 up the room. The 53 in the room was obvious, and 54 wasn’t just about toys. It was a feeling –the feeling I knew 55 that Christmas so long ago when the women came to visit. I wasn’t forgotten. Somebody thought of me. I matter.
A．sending B．receiving C．making D．exchanging
A．found B．prepared C．got D．expected
A．doubt B．hope C．suggest D．accept
A．broke in B．settled down C．turned up D．showed off
A．relief B．loss C．achievement D．justice
A．blamed B．loved C．forgotten D．affected
A．highly B．little C．poorly D．enough
A．present B．first C．recent D．previous
A．hardly B．instantly C．regularly D．occasionally
A．strength B．independence C．importance D．safety
A．kept up with B．caught up with C．came up with D．put up with
A．none B．few C．some D．each
A．fine B．special C．helpful D．normal
A．reminded B．guaranteed C．convinced D．promised
A．after B．until C．when D．since
A．chance B．gift C．moment D．reward
A．lit B．took C．burned D．cheered
A．atmosphere B．sympathy C．calmness D．joy
A．it B．such C．something D．everybody
A．by B．till C．for D．from
Three engineers(工程师) and three accountants (会计) were traveling by train to a meeting. At the station, the three accountants each bought a ticket, but the three engineers bought only a single ticket. “How are three people going to travel 36 only one ticket?” asked an accountant. “Watch and you’ll see,” answered an engineer.
They all 37 the train. The accountants took their own 38 , and all the three engineers went into a restroom and 39 the door behind them. The train 40 the station, and after a while the conductor (售票员) came to 41 tickets. He knocked on the restroom door and said, “Ticket, please!” The door opened just a 42 and a single arm appeared with a ticket in hand. The conductor 43 it and moved on.
The accountants saw this and 44 it was quite a clever idea. 45 after the conference, the accountants decided to 46 what the engineers did on the return trip and 47 some money.
When they got to the station, they bought a single ticket for the return trip. To their 48 , the engineers bought no tickets 49 .
“How are you going to travel without a ticket?” asked one 50 accountant. “Watch and you’ll see,” answered an engineer. 51 they got on the train the three accountants went into a restroom and the three engineers went into another one that was 52 . Then the train started. Shortly afterwards(不久之后), one of the engineers left his restroom and walked 53 to the restroom 54 the accountants were 55 . He knocked on the door and said, “Ticket, please!”
A．in B．at C．with D．to
A．put on B．got off C．got on D．put off
A．seats B．chairs C．desks D．tables
A．closed B．hit C．opened D．knocked
A．arrived B．left C．walked D．passed
A．get B．put C．collect D．fetch
A．hole B．cut C．half D．crack
A．brought B．took C．held D．returned
A．expected B．agreed C．showed D．advised
A．So B．Although C．Or D．But
A．learn B．copy C．tell D．praise
A．save B．earn C．make D．spend
A．pity B．fear C．joy D．surprise
A．above all B．after all C．at all D．in all
A．frightened B．puzzled C．excited D．scared
A．After B．Since C．During D．Before
A．not near B．not far C．not nearly D．not closely
A．on B．up C．at D．past
A．which B．that C．where D．at where
A．hiding B．standing C．sitting D．resting
完形填空（共20小题；每小题2分，满分40分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出最佳选项。
I’ll never forget the summer day in 1965 when my mother suddenly died of an unexplained illness at the age of 36. Later that afternoon, a police officer came to ask for my father’s 36 for the hospital to 37 Mother’s valve (心脏瓣膜). I was shocked. I ran into the house 38 . At 14 I just 39 understand why anyone would take apart a person I loved. 40 my father told the police officer, “Yes .” “How can you let them do that to her?” I 41 him.
“Linda,” he said quietly, 42 his arms around me, “the greatest 43 you can give is a 44 of yourself. Your mother and I decided 45 that if we can 46 a difference in just one person’s life after we die, our death will have 47 .”
The 48 my father taught me that day became one of the most 49 in my life.
Years passed. I married and had a family of my own. In 1986, my father became seriously ill. He 50 told me that when he died, he wanted to donate 51 was in good condition, especially his eyes.
My father died and we donated his eyes 52 he had wanted. Three days later, my daughter said, “Mum, I’m so 53 of what you did for Grandpa. At that moment I realized that my father gave much more than his 54 . What he 55 behind sparkled in my daughter’s eyes — pride.
A．advice B．permission C．suggestion D．speech
A．repair B．operate C．treat D．use
A．in tears B．in silence C．in a hurry D．in surprise
A．couldn’t B．mustn’t C．might not D．shouldn’t
A．So B．And C．But D．For
A．said to B．replied to C．explained to D．cried at
A．carrying B．putting C．raising D．pushing
A．gift B．wish C．talk D．regret
A．health B．body C．part D．value
A．then B．later C．soon D．long ago
A．have B．make C．keep D．tell
A．pleasure B．right C．fun D．meaning
A．lesson B．subject C．thought D．experience
A．ordinary B．important C．useless D．hard
A．carefully B．sadly C．cruelly D．cheerfully
A．who B．whatever C．that D．which
A．as B．when C．while D．where
A．fond B．tired C．proud D．afraid
A．words B．life C．eyes D．lessons
A．taught B．left C．sent D．gave
My uncle has a very beautiful umbrella. He has had it 36 and as he is very 37 it, it still looks as good as new.
“That umbrella must have 38 you a great deal of money, Uncle.” I said to him one day.
“No,” he replied, “ 39 ”
“Was it a present?” I asked again.
“No,” said he.
“Then how did you get it?” I asked.
“Well,” he answered, “it is a strange true story. About ten years ago, I was walking along a quiet London street one evening 40 it suddenly rained. I had no raincoat and no umbrella. No buses ran through that street and there were no 41 in sight. As I was on my way to a party, I didn't want to get 42 . So I stood at a doorway and waited for the rain to stop. By and by it grew quite 43 .There wasn't a person around, and 44 it rained and rained. 45 a young man came to the place where I was standing, 46 a large umbrella over his head. 47 I hoped he would 48 me to walk to the next corner with him in order that I could get a taxi, I stepped 49 the dark doorway where I had been standing, and said: “ 50 , where are you going with that umbrella?”
51 by my sudden appearance, the young man 52 the umbrella, which, I'm afraid, he had just stolen, ran away, and 53 into the darkness. I picked up the umbrella and continued my walk. I knew it would be 54 in this big city to try and discover the owner and so I've kept it 55 .”
A．for months C．since childhood D．for a few days
A．satisfied with B．afraid of C．proud of D．careful with
A．given B．cost C．saved D．made
A．very little B．I don't know C．not a penny D．quite a lot
A．when B．though C．because D．after
A．bicycles B．policemen C．friends D．taxis
A．tired B．back C．wet D．away
A．dark B．fine C．dirty D．dangerous
A．naturally B．suddenly C．always D．still
A．At once B．At last C．As usual D．As well
A．selling B．carrying C．moving D．showing
A．As B．Although C．While D．If
A．order B．persuade C．allow D．promise
A．into B．out of C．towards D．along
A．By the way B．Help C．Excuse me D．Stop
A．Punished B．Discouraged C．Warned D．Frightened
A．raised B．took C．dropped D．forgot
A．disappeared B．lost C．pulled D．turned
A．endless B．interesting C．exciting D．hopeless
A．ever since B．for a while C．for you D．forever
粤公网安备 44130202000953号