2023届陕西省西安市长安区第一中学高三下第一次测试英语试题（含解析）.doc

2023学年高考英语模拟测试卷 注意事项 1．考生要认真填写考场号和座位序号。 2．试题所有答案必须填涂或书写在答题卡上，在试卷上作答无效。第一部分必须用2B 铅笔作答；第二部分必须用黑色字迹的签字笔作答。 3．考试结束后，考生须将试卷和答题卡放在桌面上，待监考员收回。 第一部分 （共20小题，每小题1.5分，满分30分） 1．Our team is world-class and it was no surprise that we won by such a margin. A．low B．high C．wide D．narrow 2．—I felt it very difficult to carry on the work all by myself. —I could have helped you, but you _____me to. A．hadn’t asked B．didn’t ask C．haven’t asked D．don’t ask 3．Internet shopping is really ________ when people are sure of its safety and security. A．taking off B．taking up C．setting off D．setting up 4．Jack decided to choose a different ________ and teach history through storytelling. A．analysis B．angle C．attitude D．approach 5．—What a mess! You’re always throwing things about. —Don’t be ____, Mum. I will tidy it up now. A．hot under the collar B．on cloud nine C．off the top of your head D．down in the dumps 6．If you go to buy the top best-selling CD, please get ______ for me. A．one B．it C．this D．that 7．Within even the weakest of human bodies lies a life that is precious indeed--- ____ needs to be respected and honored. A．something that B．one C．one that D．something 8．Meyer and his team were the first ______ how the disease spreads from animals to humans. A．showing B．show C．to show D．shown 9．He couldn’t make his voice ______ above the noise of the traffic. A．to hear B．hearing C．heard D．hear 10．Only when _________hard __________ make your dream come true. A．do you work; you can B．you work; you can C．do you work; can you D．you work; can you 11．—The terrible accident is under investigation. —Actually, quicker action _________ those workers trapped in the mine. A．might have saved B．must have saved C．should have saved D．could have saved 12．The police are offering ______ reward of $50,000 for information leading to the arrest of _____ murderer. A．the; the B．a; a C．the; a D．a; the 13．I'm sorry you ______ so long, but it' ll still be some time before Jim gets back． A．wait B．waited C．had waited D．have been waiting 14．________ has greater potential than flammable ice being mined from underneath the South China Sea when it comes to a global energy revolution. A．nothing B．neither C．no one D．none 15．The businessman studied the market in his hometown to find the____ for investment. A．potential B．reservation C．criterion D．allowance 16．Soon after getting off his horse, the captain appeared at the second-floor windows, ______ he could see nothing but trees. A．where B．from where C．which D．from which 17．______ caught in the rain unexpectedly, we still enjoyed the journey very much. A．When B．As C．Unless D．Although 18．Some of them, ______ in rural villages, had never seen a train. A．to be born and brought up B．born and brought up C．having born and brought up D．having been born and brought up 19．If he ____hard, he would have passed the exam. A． were to work B． had worked C． should work D． was to work 20．— There are no relative articles on the Internet.What shall we do? — My God！There are always not any useful articles when you want . A．one B．it C．that D．any 第二部分 阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。 21．（6分）Do you live in a city where looking up the air quality forecast is just as important as checking the weather forecast for the day? Many places around the world have terrible pollution problems. But now new research suggests that we might be able to protect ourselves，naturally and easily— simply by taking vitamin B． The study was conducted by a team of international researchers. Their focus was on a pollutant known as PM2.5. Its size, approximately l/40th the width of a human hair, makes it particularly dangerous because it is readily inhaled and small enough to spread through the body via the blood. This can cause damage to the lungs if PM2.5 is being breathed in regularly. The current experiment involved subjects being exposed to clean air and a placebo(安慰剂) to record baseline responses. They were given the placebo for four weeks, then exposed through a face mask to air from a highly polluted area in downtown Toronto. The researchers measured methylation (甲基化) changes to DNA; the damage increased in each participant. However, in the repeated experiment, when the volunteers were given a vitamin supplement containing 1 milligram of vitamin B12, 50 mg of vitamin B6, and 2.5 mg of folic acid daily for four weeks, it reduced the damage to the DNA by a range of 28 to 76 percent. The results indicate how prevention at an individual level could be used to fight the harmful effects of PM2.5. However, researchers stressed that research was in its early stages. Future studies, especially in heavily polluted areas, are urgently needed and they’ll finally develop preventive measures using B vitamins to prevent the health effects of air pollution. 1、What does the underlined word “inhaled” in Paragraph 1 refer to? A．breathed. B．smelt. C．approached. D．di