【正文】 s are negotiated online.Online dating also allows the setting of preconditions. Computer algorithms(程序) exclude undesirable traits(個(gè)性/特征) such as the wrong hair color, race or age. But they also exclude randomness. They reduce the chances of meeting someone different, or someone who could challenge one’s romantic ideals. Instead, they find the partner we think we want and exclude everyone else. As a result, we could be missing the opportunity of a lifetime, to meet someone we would never have expected to fall in love with.Perhaps this new way represents a more efficient form of romance. Traditional ideas of love may be enchanting(迷人的) – but are they useful? Loneliness and boredom are less exciting than chance encounters, but they represent the more realistic side of love. All too often people have suffered through had dates and humiliations(羞辱). If they could just choose what they wanted. Wouldn’t it save time and reduce suffering? However, by choosing partners based on our preconceived ideas, we may be indulging in our illusions. Instead of letting ourselves grow with someone, love bees more about looking for ourselves in the other. What if we don’t know ourselves as well as we think? Perhaps love isn’t about knowing what we want. Perhaps it’s about being open to unimagined possibilities. Sport injuriesSport injuries are injuries that happen to athletes participating in sporting events. In many cases, these types of injuries are due to overuse of a part of the body. For example, runner’s knee is a painful condition associated with running, while tennis elbow is a form of repetitive stress injury at the elbow. Other types of injuries, such as a broken bone, can be caused by hard contact with something. Injuries are a mon occurrence in professional sports, and most teams have a staff of trainers and close connections to the medical munity. Controversy has arisen at times when teams have made decisions that could threaten a player’s longterm health for shortteam gain.Sport injuries can be classified as either traumatic(外傷的) or overuse injuries. Traumatic injuries account for most injuries in contact sports such as soccer, rugby(英式橄欖球), and American football. This is of course due to the dynamic and high collision nature of these games. These injuries range from bruises and muscle strains to fractures and head injuries.A bruise is damage to small blood vessels which causes bleeding within the tissues. A muscle strain is a small tear of muscle fibers and a ligament sprain(韌帶拉傷) is a small tear of ligament tissue. The body’s response to these injuries is the same in the initial fiveday period immediately following the incident – inflammation(發(fā)炎). Inflammation is characterized by pain, localized swelling, heat, redness and a loss of function.Inflammation is the first phase of healing, and typically lasts for around five days. However, too much of an inflammatory response can mean that the healing process will take longer, and a return to activity is delayed. Sports injury treatments are intended to minimize the inflammatory phase of an injury so that the overall healing process is accelerated. Runner’s knee is a painful injury that’s due to overuse. Inflammation is the first phase of healing and typically lasts for around 5 days. Unit 22 listening 情態(tài)動(dòng)詞Now that you have studied in English at a high lever, let’s get a better understanding of the models. By now, you should already have a good understanding of what they meant. There are the models which are used to express the degree of certainty. Will shall may canThese models are used to make predictions, judgements and speculations. They indicate how much a speaker knows about the likelihood of an event. First, the model will express certainty as in if you heat water, it will boil. Based on what is known, the speaker is certain it would happen. The model may express possibility, as in it may rain this evening, but I’m not sure. Based on what is known, the speaker asserts that event is possible rather than certain or impossible. The model can express the potentiality or ability, as in he can afford it, but he may decide not to buy. The model “shall” is a bit different from others. Tina shall be there means the speaker is determined that Tina will be there. In other words, the speaker is determined to get her to e and would try to influence events to make it happen. We would never say it shall rain. Nobody can make it rain so whether it rain or not is beyond one’s control. If some were to say that, it would seem as they were claiming the power to control or influence nature. Know that the question shall I open the door invites the person who is asked to make a decision. Whether or not the door is open depends on the person’s answer. In contrast, will I open the door ask for a prediction rather a decision. Know what these models can be weakened or removed or by some of these pass time form. Would should might couldWe would go if we had more money but we don’t. this sentence expresses the speaker’s certainty of going if they had more money, which they don’t. so the certain prediction exists but in an imaginary or unreal situation. The model might express less possibility than may so might go is less likely than may go. The models could express less potentiality than can and it’s often used in conditionals(從句). If he could e expresses less potential than if he can e. If he could e, we would all be happier expresses the feeling that in fact he can’t e. Here are the second sets of model. Must, should, had, better oughtThese models express degree of logical force or social expectations. Know that none of them has a past time or weakened form. The first one must indicates logical or social necessity. It expresses the strongest logical or social force. The model should and ought to assert that something is probably or expected but not necessary. The model had better expresses adv