2024届上海市高考英语模拟卷1

上海高考英语模拟卷1 [Grammer and vocabulary] The biggest safety threat facing airlines today may not be a man with a gun but the man with the portable computer in business class. In the last 25 years, pilots have reported well over 200 incidents that (21) _ have been caused by electromagnetic interference. Unclear (22)_ the source of this interference remains, increasingly, experts have found out that portable electronic devices such as portable computers, radio and mobile telephones are (23)_(blame). RTCA, an organization (24) advises aviation industry, has suggested that all airlines ban such devices from (25) _(use) during “key” stages of flight, particularly take-off and landing. Some experts have gone (26)_ (far), calling for a total ban during all flights. Nowadays, rules on using these devices are left up to airlines. And although some airlines ban passengers from using such equipment during take-off and landing, most are probably not willing (27) (enforce)a total ban, if many passengers want to work during flights. The difficulty is understanding (28)_ electromagnetic fields might affect an aircraft's computers. Experts know that the portable devices give off radiation, each (29) _(affect) those wavelengths which aircrafts use for communication. 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 in trouble because of the interference raises the risk (30)_some people may use radio systems in order to damage navigation(导航) equipment. As worrying, though, is the passenger who can't hear the instructions to turn off his radio because the music's too loud. A. driver B. critical C. issue D. conference E. reliance F. concerns G. institute H. centered. I. rival J. projected K. jumped Sales of the iPhone 11 propelled Apple to all-time record revenues and profits for the final three months of 2019, a strong performance that comes amid 3