河南省南阳市方城县20xx-20xx学年高二英语12月联考试题

河南省南阳市方城县20xx-20xx学年高二英语12月联考试题内容摘要：

al ban during all , rules on using these devices are left up to individual airlines. And although some airlines prevent passengers from using such equipment during takeoff and landing, most are unwilling to carry out a total ban, given that many passengers want to work during flight. The difficulty is predicting how electromagic fields might affect an aircraft39。 s puters. Experts know that portable devices send out radiation which affects those wavelengths which aircraft use for navigation and munication. But, because they have not been able to reproduce these effects in a laboratory. they have no way of knowing whether the interference might be. dangerous or not. The fact that aircraft may be fragile to interference raises the risk that terrorists may use radio systems in order to damage navigation equipment. As worrying, though, is the passenger who can 39。 t hear the instructions to turn off his radio because the music39。 s too loud. 12. What is said about the over 100 aircraft incidents in the past 16 years? A. They may have been caused by the damage tothe radio systems. B. They were proved to have been caused by the passengers portable puters. C. They were suspected to have resulted from electromagic interference. D. They may have taken place during takeoff and landing. is it difficult to predict the possible effects of electromagic fields on an airplane 39。 s puters? A. Because it is extremely dangerous to conduct such research on an airplane. B. Because research scientists have not been able to produce the same effects in labs. C. Because it remains a mystery what wavelengths are liable to be interfered . Because experts lack adequate equipment to do such research. 14. Few airlines want to perform a total ban on their passengers using electronic devices because_______ don39。 t believe there is such a danger as radio interference B. the harmful effect of electromagic interference is yet to be proved C. most passengers refused to take a plane ,which bans the use of radio and cassette players D. they have other effective safety measures to fall back on 15. The passage is mainly about_________. A. a possible cause of aircraft incidents B. a new rule for all airlines C. effective safety measures for air flight D. the disadvantages of electronic devices 第二节 任务型阅读 （共 5小题；每小题 2分，满分 10分） 根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。 有两项为多余选项。 When you are waiting in front of a theater or at the train terminals, you will realize how important punctuality (守时 )is. Punctuality is really a virtue, especially in a busy city. 16 . Punctuality is the main constituent(构成部分 ) of good character. 17 On the other hand, a person who is always late shows his selfishness and thoughtlessness and he is not worthy to be friends with. Some people often say that they cannot always be punctual since traffic is so heavy these days. 18 . As everybody knows, we might meet an unexpected jam on the roads, so we should leave a bit earlier for the appointment to ensure that we would not be late. 19 . When they finally arrive, they keep on saying sorry to their friends and then explain. The excuse is not always traffic jam. Sometimes they plain that they have met a friend on the road or have helped a blind man to cross the road. Some also like to blame their watches, the clocks at home or in the office. To such people, we cannot help but say sorry that we have e too early. Yet after all, such smart fellows will soon find that gradually their friends bee fewer and fewer. Perhaps at that time, they would realize how important punctuality is. 20 _. So when we are young, we should try to be punctual every time and never be late, for it is much more easily acquired in youth than when we are older. person who is always on time for his appointment shows real consideration for others. is polite to be punctual when you are invited to a party. think traffic jam cannot be an excuse for being late. people always have a lot of excuses for ing late. if everybody were punctual, there would be less suffering and sorrow. western coun。