精品解析：黑龙江省哈尔滨工业大学附属中学2020-2021学年高二下学期期末考试英语试题

可学科网 哈工大附中2020一2021学年度第二学期期末试题 高二（英语）试题 时间：120分钟 分值：150分 I卷 第一部分：阅读理解（共两节，满分40分) 第一节（共15小题：每小题2分，满分30分） 阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。在答题卡上将最佳 选项涂黑。 A Wouldn't it be great if you could correct your eyesight,especially nearsightedness,and reduce your dependence on glasses and needn't have eye surgery?The solution is called orthokeratology.or ortho-k 镜) What is ortho-k? Orthokeratology(ortho-k)is the fitting of specially designed contact lenses (that you wear overnight while you are asleep,the lenses gently reshape the front surface of your comnea (so you can see clearly the following day after you remove the lenses when you wake up. How long does the ortho-k effect last? You should be able to see acceptably well without glasses or contact lenses for a day or two,sometimes longer. For best results,one should wear the ortho-k lenses every might. Who are good candidates for ortho-k? Most people with mild to average nearsightedness are good candidates for ortho-k.Because the commeal reshaping effect is temporary,little risk is involved,and you can discontinue wearing the lenses at any time. Children and young adults who want to be gases-free but are too young for eye surgery or are afraid of taking the surgery often are good candidates for ortho-k.People who participate in contact sports or work in dusty environments that can have problems for contact lens wear also can be good candidates. How much does ortho-k cost? Costs also can vary based on the region of the country and the type of practice where you have the procedure performed.Ortho-k prices in the US generally range from $1,000 to $2,000 But particularly difficult cases of ortho-k can cost as much as $4.000. There are additional costs for lens care solutions and following up exams,which can total about $300 to 500 第1页/共11页 可学科网 6组卷网 per year. Finally,keep in mind that,as with all contact lenses,there are some possible side effects of wearing ortho-k lenses.Ask your eye doctor for details 1.According to the pa