有关于冬天的英语美文：lohas in winter 乐活于冬日
as the days draw in and temperatures drop, you may be tempted to hang up your exercisegear and hibernate. don’t! it may be cold outside but winter needn’t be the unhealthiest timeof year for you and your family. stay active throughout autumn and winter to beat thoseseasonal blues and feel on top of the world.
here are four ways to make sure that even when your body is telling you to hibernate you cankeep healthy and fit, no matter what the weather’s like:
1. eliminate your sleep debt
“on average we sleep six-and-a-half hours a night, much less than the seven to nine hoursrecommended,” says the spokesperson at the sleep council, which aims to raise awareness ofthe importance of a good night’s sleep to health and wellbeing. but in winter, we naturally sleepmore, due to the longer nights. “it’s perfectly natural to adopt hibernating habits when theweather turns cold.”
2. drink more milk
you are 80% more likely to get a cold in winter so making sure your immune system is in tip-top condition is important. milk and dairy products such as cheese, yoghurt and fromage fraisare great sources of protein and vitamins a and b12. they’re also an important source ofcalcium, which helps keep our bones strong. try to go for semi-skimmed or skimmed milk,rather than full fat, and low-fat yoghurts.
3. eat more fruit and veg
ensure that you still keep your diet healthy and include five portions of fruit and veg a day butnot unhealthy comfort food. if you find yourself craving a sugary treat, try sweet dried fruitssuch as dates or raisins. winter vegetables such as carrots and turnips can be roasted, mashedor made into soup for a comforting winter meal for the whole family.
4. try new activities for the whole family
don’t use the cold winter months as an excuse to stay in and lounge around. regular exercisehelps to control your weight, boost your immune system and is a good way to break thetension that can build if the family is constantly cooped up inside the house.
don’t worry if you’ve not done much for a while, these exercises are easy, gentle to follow andcan also be done indoors.
if you’re not keen on exercising outdoors, check out our 10-minute home exercise routines:
10-minute home cardio workout
10-minute home toning workout
stretching after exercising
something you enjoy
choose an activity that you enjoy. now might be the time to try something new that you cando indoors, such as:
有关于冬天的英语美文：chilling out in the winter sun
stratospheric changes can lead to nasty cold snaps
those unconvinced—and those seeking to unconvince others—of the reality of man-madeglobal warming often point to the changeable behaviour of the sun as an alternativehypothesis.
a new study showing how the severity of winters in europe, and warming in the arctic, might belinked to changes in solar activity might seem to add to this case.
in itself, it does not, for the heat in question is being redistributed, not retained.
but it does point to two other lessons about climate change:
that hard data on the factors which affect it are sometimes difficult to come by;
and that computer models of the climate can be quite impressive tools for working out what isgoing on.
the sun's activity waxes and wanes on an 11-yearcycle, and over this cycle the amount of ultraviolet light the sun emits changes a lot more thandoes the total amount of energy.
the stratosphere, the part of the earth's atmosphere which does most to absorb uv, mightthus be expected to particularly sensitive to the cycle.
in a paper just published in nature geoscience,
sarah ineson of britain's meteorological office and her colleagues compared the way that themet office's new and putatively improved climate model dealt with winters at times of high uvand at times of low uv, using data on the amount of ultraviolet the sun gives off that werecollected by a satellite called sorce.
dr ineson found that at low uv levels the stratosphere in the tropics was cooler,
because there was less uv for it to absorb, which meant the difference in temperaturebetween the tropical stratosphere and the polar stratosphere shrank.
that changed the way the atmosphere circulated, and as those changes spread down into thelower atmosphere they made it easier for cold surface air from the arctic to come south inwinter, freezing chunks of northern europe.
these conditions looked similar to those seen in the past two cold european winters—whichoccurred at a time of low solar activity.
the arctic itself, in models and in real life, was warmer than usual, as were parts of canada.
in contrast, northern europe, swathes of russia and bits of america were colder.
why had this solar effect not been seen before?
to some extent it had. earlier modelling of a period of prolonged low solar activity in the 17thand 18th centuries showed similar patterns.
that models of today's climate had not was, in part,
because they used much lower estimates of the amount of uv variation over the solar cyclethan those derived from the sorce data, the most precise to be taken from a satellite lookingat the sun.
it may just be that working with more realistic data made the model work better.
this does not mean the question is settled.
some scientists suspect the sorce data may be exaggerating the sun's variability, and ifthey were revised the link might go away.
there are other theories around seeking to explain the recent cold winters, too.
improving predictions of future cold winters on the basis of this work, as the researchers saythey would like to do, may thus prove hard.
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but though global warming has made people look to models as predictors of the future, that isnot their strongest suit.
something they can do much better is look at what happens when a variable such as uv isaltered,
compare that with the data, and thus gain insight into the mechanisms by which climate works.
this new research provides a good example of what such an approach can achieve.
有关于冬天的英语美文：a winter walk
the wind has gently murmured through the blinds,or puffed with feathery softness against the windows,and occasionally sighed like a summer zephyr lifting the leaves along, the livelong night.
the meadow mouse has slept in his snug gallery in the sod,the owl has sat in a hollow tree in the depth of the swamp,the rabbit, the squirrel, and the fox have all been housed.
the watch-dog has lain quiet on the hearth,and the cattle have stood silent in their stalls.
the earth itself has slept, as it were its first, not its last sleep,save when some street sign or woodhouse door has faintly creaked upon its hinge,cheering forlorn nature at her midnight work,the only sound awake twixt venus and mars,
advertising us of a remote inward warmth,a divine cheer and fellowship, where gods are met together,but where it is very bleak for men to stand.
but while the earth has slumbered,all the air has been alive with feathery flakes descending,as if some northern ceres reigned,showering her silvery grain over all the fields.
we sleep, and at length awake to the still reality of a winter morning.
the snow lies warm as cotton or down upon the window-sill;
the broadened sash and frosted panes admit a dim and private light,which enhances the snug cheer within.
the stillness of the morning is impressive.
the floor creaks under our feet as we move toward the window to look abroad through some clear space over the fields.
we see the roofs stand under their snow burden.
from the eaves and fences hang stalactites of snow,and in the yard stand stalagmitescovering some concealed core.
the trees and shrubs rear white arms to the sky on every side;
and where were walls and fences,we see fantastic forms stretching in frolic gambols across the dusky landscape,as if nature had strewn her fresh designs over the fields by night as models for man's art.