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1、七选五 说明文大题精做五精选大题A【2019新课标I】Is Fresh Air Really Good for You?We all grew up hearing people tell us to “go out and get some fresh air.” 1 According to recent studies, the answer is a big YES, if the air quality in your camping area is good.2 If the air youre breathing is cleanwhich it would be if your
2、e away from the smog of citiesthen the air is filled with life-giving, energizing oxygen. If you exercise out of doors, your body will learn to breathe more deeply, allowing even more oxygen to get to your muscles(肌肉) and your brain.Recently, people have begun studying the connection between the nat
3、ural world and healing(治愈). 3 In these places, patients can go to be near nature during their recovery. It turns out that just looking at green, growing things can reduce stress, lower blood pressure, and put people into a better mood(情绪). Greenery is good for us. Hospital patients who see tree bran
4、ches out their window are likely to recover at a faster rate than patients who see buildings or sky instead. 4 It gives us a great feeling of peace.5 While the suns rays can age and harm our skin, they also give us beneficial Vitamin D. To make sure you get enough Vitamin Dbut still protect your ski
5、nput on sunscreen right as you head outside. It takes sunscreen about fifteen minutes to start working, and thats plenty of time for your skin to absorb a days worth of Vitamin D.A. Fresh air cleans our lungs.B. So what are you waiting for?C. Being in nature refreshes us.D. Another side benefit of g
6、etting fresh air is sunlight.E. But is fresh air really as good for you as your mother always said?F. Just as importantly, we tend to associate air with health care.G. All across the country, recovery centers have begun building Healing Gardens.【答案】1-5 EAGCD【解析】这是一篇说明文。文章介绍了新鲜空气对人体的各种好处。1根据下一句中的“the
7、 answer is a big YES”可知，该空应该是一个一般疑问句，选项中只有E选项是一般疑问句。E项“但是新鲜空气真得像你母亲说的那样对你有好处吗？”承上启下。且空前的“people tell us to go out and get some fresh air ”和选项中的“your mother always said”亦是呼应。2根据下一句中提到的“If the air youre breathing is cleanthe air is filled with life-giving, energizing oxygen”可知，新鲜空气充满赋予人生命的、充满活力的氧气。再根据
8、下文中“breathe more deeply, allowing more oxygen to get to your muscles and your brain”是对前文的递进。根据前面的分析可以推知，该空应该提到新鲜空气的基本作用，而根据常识，我们知道吸入的空气首先进入的是肺部，然后才会使我们的肌肉和大脑受益，故该空应选A项。3根据下一句中提到的“these places”可以推知，该空应该提到表示地点的复数名词。选项中只有G选项提到该类名词，“these places”就是指Healing Gardens。4前文介绍的是“康复花园”中的绿色植物对于病人康复有好的作用：绿色的正在成长的
9、植物可以减轻压力，降低血压，使人情绪良好；空后提到“它给我们一种平和感”。该空起承上启下的作用，仍然要提到处于“康复花园”这种自然环境中的好处，故选C项。5根据下文中提到的“the suns raysgive us beneficial Vitamin D”可知，该段介绍阳光的好处。故该选项应该提到阳光。选项中只有D选项涉及阳光。B【2019新课标III】In an online class, developing healthy patterns of communication with professors is very important. 6 While I have only l
10、isted two of each, there are obviously many other situations that can arise. Students should be able to extend the logic(逻辑) of each to their particular circumstance.Dos 7 Questions about subject content are generally welcomed. Before asking questions about the course design, read the syllabus(教学大纲)
11、 and learning management system information to be sure the answer isnt hiding in plain sight. Participate in discussion forums(论坛), blogs and other open-ended forums for dialogue. 8 Be sure to stay on topic and not offer irrelevant information. Make a point, and make it safe for others to do the sam
12、e.Donts Dont share personal information or stories. Professors are not trained nurses, financial aid experts or your best friends. If you are in need of a deadline extension, simply explain the situation to the professor. 9 Dont openly express annoyance at a professor or class. 10 When a student att
13、acks a professor on the social media, the language used actually says more about the student. If there is truly a concern about a professors professionalism or ability, be sure to use online course evaluations to calmly offer your comments.A. Thats what they are for.B. Turn to an online instructor f
14、or help.C. If more information is needed, they will ask.D. Remember that online professors get a lot of emails. E. Below are some common dos and donts for online learners.F. Everyone has taken a not-so-great class at one time or another.G. Ask questions, but make sure they are good, thoughtful quest
15、ions.【答案】6-10 EGACF【解析】本文为说明文。在网络课堂上，与教授建立健康的交流模式是非常重要的，作者在文中列举了一些规矩与禁忌。6根据文章段落结构和本段首句“In an online class, developing healthy patterns of communication with professors is very important.”可知，在网络课堂上，与教授建立健康的交流模式是非常重要的，作者在下文中列举了一些规矩与禁忌，故E项符合语境。7根据其后一句“Questions about subject content are generally welcomed.”（与课程内容相关的问题是受欢迎的），解释了什么样的问题是好问题，G项“make sure they are good, thoughtful questions”与后一句相呼应，要提一些好的令人深思的问题，故选G。8根据前一句“Participate in discussion forums(论坛), blogs and other open-ended forums for dialogue.”可知，要参与论坛讨论、博客和其他开放式的对话论坛。而这正是网络课堂交流的途径，故选A。9根据本段“Professors are n
