1 . Heads or Tails?

Careful: It’s not 50-50

The phrase “coin toss” is a classic synonym for randomness. But since the 18th century, mathematicians have _________ that even fair coins tend to land on one side slightly more often than the other. Proving this tiny bias, _________, would require hundreds of thousands of carefully recorded coin flips, making laboratory tests a logistical (后勤的，组织协调的) _________.

František Bartoš, currently a Ph.D. candidate studying the research methods of psychology at the University of Amsterdam, became interested in this _________ four years ago. He couldn’t _________ enough volunteers to investigate it at first. But after he began his Ph.D. studies, he tried again, recruiting 47 volunteers from six countries. Multiple weekends of coin flipping later, including one 12-hour marathon _________, the team performed 350,757 tosses, breaking the previous record of 40,000.

With one side initially upward, the flipped coin landed with the same side facing _________ as before the toss 50.8 percent of the time. The large number of throws allows _________ to conclude that the nearly 1 percent bias isn’t a fluke (侥幸). “We can be quite sure there is a bias in coin flips after this data set,” Bartoš says.

The leading theory explaining the _________ advantage comes from a 2007 physics study by Stanford University statisticians, whose calculations predicted a same-side bias of 51 percent. From the moment a coin is launched into the air, its entire track — including whether it lands on heads or tails — can be calculated by the laws of __________. The researchers determined that airborne coins don’t turn around their symmetrical axis (对称轴); __________, they tend to move off-center, which causes them to spend a little more time high in the air with their initial “up” side on top.

For day-to-day decisions, coin tosses are as good as random because a 1 percent bias isn’t __________ with just a few coin flips, says statistician Ameli, who wasn’t involved in the new research. Still, the study’s conclusions should eliminate any lasting doubt regarding the coin flip’s slight bias. “This is great experiment-based evidence __________ the bias,” she says.

It isn’t difficult to prevent this bias from influencing your coin-toss matches; simply __________ the coin’s starting position before flipping it should do the trick. But if your friends are __________ the tiny bias, you may as well benefit from your slight advantage. After all, 51 percent odds beat a casino’s house advantage. “If you asked me to bet on a coin,” Bartoš says, “why wouldn’t I give myself a 1 percent bias?”

2 . “Blame My Brain” by Nicola Morgan, reviewed by Rosalie Warren

As someone who constantly blames my brain for all sorts of things (not my fault — my brain did it!), I was _______ by the title of Nicola Morgan’s book and only slightly disappointed to learn that it was _______ teenagers. Since I have many days when I feel that I am barely out of my teens (though the mirror, sadly, does not bear this out), I decided that the book might still be relevant to me, and indeed to my relationships with my no-longer-teenage children.

The subtitle is “The amazing teenage brain revealed” and amazing is, I soon _______, exactly what the teenage brain is. I learned that one of the things that _______ to the brain in our early teenage years is a flurry of growth of the dendrites (connections between neurons), followed a few years later by a major pruning session where many of the relatively unused connections are culled and the remaining ones are strengthened and coated with a fatty myelin layer ready for adult life. Not _______, all this activity is not without its downside for the person “within”, and it goes along way towards _______ why teenagers can be so difficult to live with and to cope with themselves.

There are also brain-based explanations of why teenagers need so much sleep, why they don’t tidy their rooms, why they come _______ when the rest of the world is going to sleep and why some of them, at least, are risk-takers. There’s stuff about alcohol and drugs and why such things are not good for the brain, but all of it is written in a very _______ and understanding way that I think teenagers will warm to.

Nicola Morgan is not a neurologist or a _______ scientist, but she clearly had done a great deal of research and ________ experts including Professor Simon Baron-Cohen and Professor Susan Greenfield, among many other eminent names in the field. Morgan has a gift for simplifying and explaining ________ subject matter with a light but precise touch, and she is careful to ________ between established facts and theories and speculations of her own and other people’s.

There’s plenty of humour and a good few well-deserved digs at the stupidity of parents and other well-meaning but misguided adults, which teenagers will ________. There are diagrams, tests, photos relating to questions like What emotions can you recognize? Do you ________ other emotions with anger? What kind of thinker are you? Which mental tasks do you find comparatively easy or difficult? There’s also sound advice for addiction, self-harm, depression and other ________ illnesses, and some pointers towards recognizing when you may need to seek help.

The illustrations by Andy Baker are great, too. And oh yes — there’s some interesting discussion on the differences between girls’ brains and boys’, if there are any. You’ll have to read it to find out...

3 . History has not yet _______ what we will definitively call the postmillennial cohort (2000年后出生的人) that now _______ more than 60 million people in the U.S. These kids and _______ with no concept of life _______ the Internet have so far been called the App Generation and Generation Z. They’ve been referred to as Homelanders, having grown up under the ghost of terorism. They’ve also been _______ the Plurals, for their historic diversity, as well as the Founders, at least by MTV.

Whatever we _______ naming them, marketers and academies are turning their attention to this group, which has billions in _______ and is already shaping the culture. This generation is growing up “totally and utterly connected,” says California State University psychologist Larry Rosen. Experts like Rosen have concerns about these kids’ Google-inspired expectations that everything be _______. They worry about their inability to _______ even five seconds of boredom. And they worry about the demands that come with ________ several identities online, from Facebook to Twitter to Snapchat. “There’s so much pressure on young people, who are still ________ their identities, to present this crystallized, idealized identity online,” says the University of Washington’s Katie Davis.

Historian Neil Howe sees ________ with the Silent Generation, the spoilt, risk-avoiding, “nice” generation of kids who grew up during the Great Depression and World War II, although some marked differences are found. Today’s youths are also coming of age among geopolitical trouble and fears about the economy, he says, ________ schools emphasize an intense far-reaching sensitivity to other kids. He suspects this ________ will be known for being well behaved and perhaps boring the culture by playing it safe. “There are typical examples that occur repeatedly,” Howe says, “even if they go by different ________.”

4 . It started with a bit of casual discomfort on the head, but after a week it had spread to the back of my neck, enough to lead me to my laptop. Annoying as it was, I was ________ to take up my doctor’s time with such a silly complaint and then have a wasted journey only to be informed that it would clear up by itself and that ________ would be of no use at all.

As soon as I’d tapped in ‘online self-diagnosis’, the search engine provided me with over 11.5 million results. And during the time normally spent in the clinic’s waiting room reading the Women’s Weekly, I was able to find a site that would provide a free ________ in the comfort of my chair, and with no need for an appointment,

I answered all the questions until I eventually reached a description exactly matching my ________. As I clicked on ‘More Information’, I was hit with what I’d never anticipated. The worst case scenario was complete hair loss. I couldn’t have been more ________.

I headed off to the doctor for what I thought would be a blood test but which turned out to be a valuable lesson in not ________ everything you read on the internet. It took him less than a minute to guess at and locate head lice (虱子). I was relieved to know that I would be ________ my hair, and horrified to know that it was being occupied.

I learnt my lesson, but for some the worry caused by ________ every ache has led to a new form of hypochondria (疑病症). Named ‘cyberchondria’ by the print media back in 2000, this particular condition has ________ greatly. Although most people’s main point of call is still the doctor’s surgery, it’s estimated that ________ worries are now the second most researched topic on the web. This is truly a serious concern when about 25%of the medical information online is thought to be ________.

Once upon a time, hypochondria required time and effort: you had to go to the library to research your diseases and ________ go through the books. Now it’s just a matter of a few clicks of a mouse. But while your doctor will make a diagnosis ________ your age, appearance and medical history, a search engine will rely simply on algorithms (算法). These come up with results graded according to popularity or numbers of key words. So the most highly ranked hits might actually be for very genuine disease, which are nonetheless extremely ________. One minute you think you’ve come down with the flu, the next you’re under attack from sub-tropical, flesh-eating bacteria. Time spent going to the doctor’s for ________ of mind suddenly seems fair enough.

6 . During the initial stages of instructed L2 (the second language) acquisition students learn a couple thousand, mainly high frequency words. Functional language proficiency, however, _______mastery of a considerably large number of words. It is therefore _______ at the intermediate and advanced stages of language acquisition to learn a large vocabulary in a short period of time. There is not enough time to _______the natural (largely incidental) L1 (the first language) word acquisition process. Incidental acquisition of the words is only possible up to a point, _______, on account of their low frequency, they do not _______often enough in the L2 learning material.

Acquisition of new words from authentic L2 reading texts by means of strategies such as contextual deduction (演绎) is also not a _______for a number of reasons. There appears to be no _______to intentional learning of a great many new words in a relatively short period of time. The words to be learned may be _______in isolation or in context. Presentation in bilingual (双语的) word lists seems an _______shortcut because it takes less time than contextual presentation and yields excellent short term results. Long term memory, ________, is often disappointing so contextual presentation seems advisable.

Any suggestions on how to use this in educational contexts should be based on a systematic ________ of the two most important aspects of the L2 word learning problem, this is to say,   selecting the relevant vocabulary (which and how many words) and creating the best conditions for the acquisition process. This article sets out to ________a computer assisted word acquisition programme (CAVOCA) which tries to do exactly this: the programme operationalises current theoretical thinking about word acquisition, and its ________ are based on a systematic list of the vocabulary relevant for the target group. To ________its frequency, the programme was ________ in a number of experimental settings with a paired associated method of learning new words. The experimental results suggest that an approach combining the two methods is most advisable.

10 . The most important day I remember in all my life is the one on which my teacher, Anne Mansfield Sullivan, came to me. I am filled with wonder when I consider the immeasurable contrasts between the two lives which it connects. It was the third of March, 1887, three months before I was seven years old.

On the afternoon of that eventful day, I stood on the porch, dumb, ________. I guessed vaguely from my mother's signs and from the hurrying to and from in the house that something unusual was about to happen, so I went to the door and waited on the steps. The afternoon sun penetrated the mass of honeysuckle that covered the porch, and fell on my upturned face. My fingers lingered almost ________ on the familiar leaves and blossoms which had just ________ to greet the sweet southern spring. I did not know what the future held of ________ or surprise for me. Anger and bitterness had preyed upon me continually for weeks and a deep languor(倦怠)had ________ this passionate struggle.

Have you ever been at sea in a dense fog, when it seemed as if a tangible white darkness shut you in, and the great ship, tense and anxious, groped her way toward the shore with plummet(铅锤) and sounding-line(测深索), and you waited with beating heart for something to happen? I was like that ________ before my education began, only I was without   ________ or sounding-line, and had no way of knowing how near the ________ was. "Light! Give me light!" was the wordless cry of my soul, and the light of love shone on me in that very hour.

I felt approaching footsteps. I stretched out my hand as I would to my mother. Someone ________ it, and I was caught up and held close in the arms of her who had come to ________ all things to me, and more than all things else, to love me.

The morning after my teacher came she led me into her room and gave me a doll. The little blind children at the Perkins Institution had sent it and Laura Bridgman had dressed it; but I did not know this until ________. When I had played with it a little while, Miss Sullivan slowly spelled into my hand the word "d—o—l—l." I was at once interested in this finger play and tried to ________ it. When I finally succeeded in making the letters correctly I ________ with childish pleasure and pride. Running downstairs to my mother I held up my hand and made the letters for doll. I did not know that I was spelling a word or even that words existed; I was simply making my fingers go in monkey-like imitation. In the days that followed I learned to spell in this ________ way a great many words, among them pin, hat, cup and a few verbs like sit, stand and walk. But my teacher had been with me several weeks before I understood that everything has a ________.