Unit 2 Morals and Virtues —高一英语人教版（2019）必修第三册单元测试AB卷（含答案）

Unit 2 Morals and Virtues（B卷能力提升）—高一英语人教版（2019）必修第三册单元测试AB卷 （100分） 一、语法填空（共5小题，每小题4分） 1.I’d appreciate it if you can tell me if you will come at your earliest_____ (convenient). 2.This job is entirely _____ (volunteer) not compulsory(强制的). 3.On hearing the funny joke, all the people broke into _____ (laugh). 4.The doctor shares his phone number with the patients in case they need medical_____ (assist). 5._____ (serve) on different occasions and playing a significant part in daily communication, tea is everywhere on the globe today. 二、翻译句子（共5小题，每小题4分） 6. Tu Youyou is a committed and patient scientist, who was committed to extracting artimisinin. _____ 7.Eight years later, Lin graduated from Peking Union Medical College (PUMC) with the Wehai Scholarship, the highest prize given to graduates. _____ 8.唐山大地震是我祖母永远不会忘记的可怕经历。(定语从句) _____ 9.只有通过共同的努力，世界才能变得更加美丽。(only+状语，倒装) _____ 10.正是在你帮助下，我在英语口语方面取得了很大的进步。(It强调句；强调状语) _____ 三、阅读理解（共4小题，每小题5分） It’s 1:45 a.m., and 21-year-old Thomas Murphy is studying for an important exam. To stay awake, he’s had two cups of coffee in the last three hours and is now downing a popular energy drink which also has caffeine(咖啡因). Caffeine is present in many of the foods and drinks we consume, but is it good for us Charles Czeisler, a scientist and sleep expert at Harvard Medical School, believes that caffeine causes us to lose sleep. “Without enough sleep—the typical eight hours -the human body will not work at its best, physically, mentally, or emotionally.” Too often, Czeisler says, we consume caffeine to stay awake, which later makes it impossible for us to get the rest we need. A number of scientists believe that regular caffeine use causes physical dependence. Heavy caffeine users show similar behaviors. For example, they get mild headaches, or they feel tired or sad when they can’t have a caffeinated drink. To reduce or stop these feelings, users must consume caffeine, which is characteristic of drug addiction. Despite these concerns, the general opinion in the scientific field is that caffeine is not dangerous when one or two small cups of coffee per day are consumed. Furthermore, a lot of current research goes against long-held negative beliefs about caffeine, and suggests that it may, in fact, have health benefits. For example, studies have shown that caffeine can help ease pain and help improve one’s mood. Research has also shown that some caffeinated drinks can help the body fight a number of illnesses, including certain types of cancer. Caffeine’s behavioral effects are real, but most often mild. Getting that burst of energy, of course, is why many of the world’s most popular drinks contain caffeine. Whether it’s a student drinking coffee before class or a businessperson enjoying tea with lunch, humankind's favorite stimulant (兴奋剂) i ... ...