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
Many Tuesday mornings, I have coffee with my father. Although my father is a man of few words, I really ____ the time along with him.
One recent Tuesday, I found it a bit ___ when I rang the doorbell, no one seemed to be home. I climbed in through the window, noticing the lights that shone from the kitchen, and ____ that my dad must be there, but he wasn't. I ____ through his home, checking every room. I tried not to ____.Yet, upstairs, downstairs, no Dad anywhere.
I was worried. ____， my father was seventyone years old. Anything could have happened to him. Then, I got in my car and drove to my mother's aerobics(有氧运动)class.
On the drive, I thought a lot about my father and our ____ together. Suddenly, I was three years old and he was ____ me up to the living room window to see the Christmas lights. In his ____， I was safe and secure. At age ten, he used to wake me up with warm breakfast in bed. Then I was twelve and my dad was ____ all the kids at my birthday party with his magic tricks. I was so ____ of my father for being so ____ and talented. He'd made my party a ____.
As I entered my mother's class. I was nervous. My mom looked at me in ____.
“Mom, where's Dad？” I asked, “He's working in the ____ on the side of the house！” she answered.
And I hurried to my car and ____ back to the yard.“Hey, Dad！” I yelled out and told him about my fears of the last half hour. My dad ____ laughing his typical laugh that was always ___. I was so thankful that I still had my daddy. And so, as I ___ the door to my father's house, we went inside for our usual cup of coffee.
Thanks, Daddy, for all the ____ and more importantly, for all your love.
A．dislike B．share C．get D．enjoy
A．dangerous B．unusual C．joyful D．relaxing
A．decided B．hoped C．expected D．wondered
A．lived B．pulled C．hurried D．came
A．cry B．panic C．believe D．confirm
A．Above all B．In all C．After all D．For all
A．journey B．family C．interest D．history
A．holding B．picking C．calling D．bringing
A．heart B．chest C．eyes D．arms
A．amazing B．cheating C．inviting D．providing
A．sure B．aware C．proud D．afraid
A．honest B．special C．lucky D．practical
A．feast B．prize C．secret D．success
A．anger B．worry C．sorrow D．surprise
A．yard B．kitchen C．room D．home
A．fought B．raced C．looked D．fled
A．kept B．remembered C．began D．stopped
A．bitter B．simple C．familiar D．tight
A．closed B．unlocked C．kicked D．knocked
A．memories B．chances C．assistance D．advice
One year ago, I traveled 15,000 kilometers from Australia to the US. I am from a beachside town in the ____ of Sydney, and thought there would be almost no ____ differences between my home country and my ____. I was surprised at how wrong I was, and at ____ different the two countries could be.
The United States is ____ in almost every aspect. The buildings are gigantic (巨大的) and so are the people who ____ and work in them. At mealtimes, the portions (份额) often ____ to me to be big enough for three or four people. I once ____ a baked potato which turned out to be bigger than my head! This was a big ____ for me.
The longer I spent in the US, the more I started to ____ smaller differences like the culture of ____ in restaurants. In Australia we don't tend to give a tip ____ the service has been really excellent. In the US you tip for ___ everything, even at the hairdresser. Waiters and shop assistants ____ to be given 15 percent of the bill, although in places ____ New York or Washington DC, a tip can be as much as 20 percent.
___， I also became more wary (谨慎的) of believing the stereotypes (成见) I had heard at home as I traveled. Not all Americans are ignorant of geography, for example.Despite this, certain stereotypes about places did seem to ____ true for me. There is an immense (强烈的) sense of speed in New York. Everyone ___ to and fro, and very seldom takes time to ____ the moment. This is very different from the Australian lifestyle. Australians are laid back. Even in a major city like Sydney, we “Aussies” take time to “stop and smell the roses”—very different from our American counterparts.
Navigating (驾驭) the culture divide between Australia and the US was challenging at times. But I took up that ____ and learned a lot from it. It was an adventure.
A．heart B．city C．center D．suburbs
A．cultural B．commercial C．economic D．scientific
A．home town B．departure C．location D．destination
A．how B．why C．however D．where
A．big B．modern C．small D．fashionable
A．travel B．survive C．live D．serve
A．happened B．seemed C．proved D．managed
A．brought B．ordered C．designed D．fetched
A．laughter B．pleasure C．shock D．embarrassment
A．prefer B．notice C．tell D．appreciate
A．serving B．tipping C．donating D．toasting
A．unless B．if C．when D．since
A．rarely B．mostly C．almost D．hardly
A．try B．wait C．think D．expect
A．like B．along C．for D．in
A．So B．Therefore C．However D．But
A．come B．become C．turn D．get
A．walks B．drives C．wanders D．rushes
A．depend on B．reflect on C．spy on D．watch on
A．experience B．job C．challenge D．business
I used to believe in the American Dream, which meant a job, a mortgage(按揭)，credit cards, success. I wanted it and worked toward it like everyone else, all of us ____ chasing the same thing.
One year, through a series of unhappy events, it all fell ____. I found myself homeless and alone. I had my truck and $56. I ____ the countryside for some place I could rent for the ___ possible amount. I came upon a shabby house four miles up a winding mountain road ____ the Potomac River in West Virginia. It was ____， full of broken glass and rubbish. I found the owner, rented it, and ____ a corner to camp in.
The locals knew nothing about me, ____ slowly, they started teaching me the ____ of being a neighbor. They dropped off blankets, candles, and tools, and began ____ around to chat. They started to teach me a belief in a ____ American Dream—not the one of individual achievement but of ____.
What I had believed in, all those things I thought were ____ for a civilized life, were nonexistent in this place. ____ on the mountain, my most valuable possessions were my ____ with my neighbors.
Four years later, I moved back into ____. I saw many people were having a really hard time, ____ their jobs and homes. I managed to rent a big enough house to ___ a handful of people. There are four of us now in the house，but over time I've had nine people come in and move on to other places. We'd all be in ____ if we hadn't banded together.
The American Dream I believe in now is a shared one. It's not so much about what I can get for myself; it's about ____ we can all get by together.
A．separately B．equally C．violently D．naturally
A．off B．apart C．over D．out
A．crossed B．left C．toured D．searched
A．fullest B．largest C．fairest D．cheapest
A．at B．through C．over D．round
A．occupied B．abandoned C．emptied D．robbed
A．turned B．approached C．cleared D．cut
A．but B．although C．otherwise D．for
A．benefit B．lesson C．nature D．art
A．sticking B．looking C．swinging D．turning
A．wild B．real C．different D．remote
A．neighborliness B．happiness C．friendliness D．kindness
A．unique B．expensive C．rare D．necessary
A．Up B．Down C．Deep D．Along
A．cooperation B．relationships C．satisfaction D．appointments
A．reality B．society C．town D．life
A．creating B．losing C．quitting D．offering
A．put in B．turn in C．take in D．get in
A．yards B．shelters C．camps D．cottages
A．when B．what C．whether D．how
I went to a group activity, “Sensitivity Sunday”， which was to make us more ___ the problems faced by disabled people. We were asked to “ ____ a disability” for several hours one Sunday. Some members，____ chose to use wheelchairs. Others wore soundblocking earplugs(耳塞)or blindfolds(眼罩)．
Just sitting in the wheelchair was a ___ experience. I had never considered before how ____ it would be to use one. As soon as I sat down, my ____ made the chair begin to roll. Its wheels were not ____. Then I wondered where to put my ____. It took me quite a while to get the metal footrest into ____. I took my first uneasy look at what was to be my only means of ____ for several hours. For disabled people, “adopting a wheelchair” is not a temporary(临时的) ____.
I tried to find a ____ position and thought it might be restful, ____ kind of nice, to be ____ around for a while. Looking around, I ____ I would have to handle the thing myself! My hands started to ache as I ___ the heavy metal wheels. I came to know that controlling the ____ of the wheelchair as not going to be a(n)____ task.
My wheelchair experiment was soon ___. It made a deep impression on me. A few hours of “disability” gave me only a taste of the ____， both physical and mental, that disabled people must overcome.
A．curious about B．interested in C．aware of D．careful with
A．cure B．prevent C．adopt D．analyze
A．instead B．strangely C．as usual D．like me
A．learning B．working C．satisfying D．relaxing
A．convenient B．awkward C．boring D．exciting
A．height B．force C．skill D．weight
A．locked B．repaired C．powered D．grasped
A．hands B．feet C．keys D．handles
A．place B．action C．play D．effect
A．operation B．communication C．transportation D．production
A．exploration B．education C．experiment D．entertainment
A．flexible B．safe C．starting D．comfortable
A．yet B．just C．still D．even
A．shown B．pushed C．driven D．guided
A．realized B．suggested C．agreed D．admitted
A．lifted B．turned C．pressed D．seized
A．path B．position C．direction D．way
A．easy B．heavy C．major D．extra
A．forgotten B．repeated C．conducted D．finished
A．weaknesses B．challenges C．anxieties D．illnesses
It was January 25th, 2008: Nisha and Akshaye's ____ anniversary. But things had changed since their marriage. The couple ____ about small things. Yet they still loved each other.
Nisha thought her husband might have ___ about their anniversary. When door bell rang, Nisha was ____ happy that Akshaye had finally remembered. She ran to open the door. Indeed, Akshaye was standing outside and ____ a bunch of flowers. They started to have a(n) ____ night. But then the phone started ringing. Nisha went to ____ it up. There was a man on the other ____ of the phone. “Hello, madam. I am calling from the ____ station. Is this Mr. Akshaye Malhotra's number？”
“Yes, it is.”
“There was an ___ , and a man died. We got your number from the man's ____. We need you to come here and ____ the body.”
Nisha's heart ____. “Whhhaat? B．..but my husband is here with me.”
“Sorry, madam, the accident took place at 3：00 pm.”
She had heard that the soul of the dead person would come to meet you before it ____. She ran to the sitting room. Akshaye was not there. Had something bad really happened? If she had been given ____ chance, she would have mended all her ____. She was about to lose her senses. ____ Akshaye came out of the bathroom, saying, “Dear, my wallet was ____ while I was ____ my way home this afternoon.”
Life might not give you a ____ chance. So never waste a moment when you have the chance to make up for your deeds.
A．marriage B．engagement C．divorce D．birth
A．talked B．argued C．quarreled D．agreed
A．remembered B．memorized C．reminded D．forgotten
A．friendly B．luckily C．surprisingly D．fortunately
A．giving B．holding C．carrying D．delivering
A．gentle B．romantic C．extraordinary D．normal
A．pick B．put C．get D．give
A．beginning B．end C．line D．call
A．post B．bus C．police D．railway
A．incident B．affair C．event D．accident
A．ID card B．passport C．license D．wallet
A．realize B．know C．achieve D．identify
A．sank B．drowned C．shocked D．beat
A．departed B．arrived C．appeared D．recovered
A．the other B．other C．another D．one
A．mistakes B．failure C．faults D．disadvantages
A．Suddenly B．Luckily C．Unfortunately D．Sadly
A．thrown B．stolen C．dropped D．attached
A．in B．on C．above D．over
A．nice B．third C．satisfied D．second
粤公网安备 44130202000953号