II．语言知识及应用（共两节, 满分35分） 第一节：单项填空（共15小题，每小题1分，满分15分） 阅读下面短文，掌握其大意，然后从21—30各题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。 Obtaining good health insurance while you are studying overseas is a real necessity to protect you from minor and catastrophic medical expenses that can wipe out not only your savings, but your dreams of an  21  abroad. There are often two different types of health insurance you can consider buying: international travel insurance and student insurance in the country where you will be   22  . An international travel insurance policy is usually   23   in your home country before you go abroad. It generally covers a wide variety of medical services, and you are often given a list of   24   in the area where you will travel who may even speak your   25   language. The   26   might be that you aren’t reimbursed（赔偿）for your medical expenses immediately. In other words, you may have to pay all your medical expenses and then later submit your receipts to the insurance company. On the other hand, getting student health insurance in the country where you will study might   27   you to only pay a certain percentage of the medical cost at the time of service (commonly called a co-pay), and thus, you don’t have to have sufficient cash to pay the   28   bill at once. Whatever you decide, obtaining some form of health insurance is something you should plan 29  you go overseas rather than waiting until you are sick   30  major medical bills to pay off. 21．A．occupation       B．adventure  C．education  D．experience 22．A．living          B．going          C．coming     D．applying 23．A．made         B．received    C．adopted    D．purchased 24．A．services       B．agents       C．doctors     D．officials 25．A．mother        B．native       C．foreign     D．local 26．A．difficulty     B．benefit      C．advantage D．drawback 27．A．encourage     B．enable      C．allow     D．require 28．A．remaining     B．separate    C．entire          D．rest 29．A．when          B．before      C．once     D．if 30．A．of            B．about     C．from     D．with