1、Unit 3 课时跟踪检测（一） Warming Up & Reading Pre-reading阅读理解AIf youre feeling tired and stressed because you have too much going on, like lots of afterschool activities, you will feel better when you give something up. Sometimes lots of activities even if theyre all fun can make you feel stressed by keepin
2、g you busy all the time. On the other hand, if problems at home are troubling (使烦恼) you, in fact some afterschool activities may help you relax and feel better.There are also relaxing exercises that you can use to keep stress away. The easiest one is to breathe (呼吸) in slowly and deeply through your
3、 nose, and then exhale slowly through your mouth. Do this two to four times.You can do breathing exercises anytime. You can even do breathing exercises in class if youre nervous before a test.The best way to keep stress away is to have a balanced life. That means making good decisions about how to s
4、pend your time. If youre always busy with schoolwork and have no time to play, you can get stressed. Make sure you keep yourself in mind: sleep, exercise, leisure (something fun), and food.If you take care of yourself and get enough sleep and food, and if you exercise and leave time for fun, youll p
5、robably be less stressed out!语篇解读：本文主要讲了如何摆脱压力。1What may help if you have problems at home according to the passage?ADoing a parttime job.BDoing some housework.CDoing some afterschool activities.DWatching TV.解析：选C细节理解题。根据第一段最后一句可知，当你在家中遇到一些烦心事的时候，做一些课外活动可以帮助你放松心情。2In order to keep stress away, you s
6、hould _.Ado exercise anytimeBmake good decisions about how to spend timeCget much food to eatDdo breathing exercises in class解析：选B细节理解题。根据第四段前两句可知，缓解生活压力最好的办法是要有平衡的生活，即明智地分配你的时间。3Which of the following is TRUE according to the passage?ADoing exercise cant help you keep stress away.BGet enough sleep
7、and you will never be stressed out.CBeing unhealthy makes you tired and stressed.DToo many activities can make you feel stressed.解析：选D细节理解题。由第一段第二句可知，有时候参加活动过多，即使这些活动很有趣，也会让你感到疲惫不堪。D项与原文表述一致，故为答案。BThe World Health Organization (WHO) says the widespread use of sugar in food products and drinks is a m
8、ajor concern in many areas. So WHO officials are calling on governments to require taxes on sugary drinks. The officials believe the taxes also would reduce the risk of health problems resulting from obesity (肥胖)Obesity is a condition in which the body stores large, unhealthy amounts of fat. A new r
9、eport says that in 2014 more than onethird of the adults in the world were overweight, and 500 million were considered obese. The United Nations agency estimates that in 2015, 42 million children under age 5 were either overweight or obese. Almost half of these boys and girls live in Asia and onefou
10、rth in Africa.The U. N. agency blames unhealthy diets for a rise in diabetes cases. There are more than 400 million cases of the disease worldwide. The WHO says 1.5 million people die from it every year. It says the use of sugar in food products and drinks is a major reason for the increase in rates
11、 of obesity and diabetes.Temo Waqanivalu is with the agency. He told VOA that taxing sugary drinks would reduce consumption and save lives. Waqanivalu noted that Mexico enacted a 10 percent tax on sugary drinks in 2014. He said by the end of the year, there was a 6 percent drop in the consumption of
12、 such drinks. Among poor people, the number of people who consumed sugary drinks dropped by 17 percent.The WHO says people should limit the amount of sugar they consume. It says they should keep their sugar intake to below 10 percent of their total energy needs, and reduce it to less than 5 percent
13、for improved health.语篇解读：本文是说明文。鉴于目前世界肥胖人口数量的增长，世界卫生组织呼吁政府向含糖饮料征税，希望以此来降低其消费量。4Why are taxes on sugary drinks required?ATo limit their use and popularity.BTo readjust the economic structure.CTo warn people to change their lifestyle.DTo ensure the markets diverse development.解析：选A细节理解题。根据第一段的前两句可知，由于
14、糖在食品和饮料中的广泛使用成为很多地区关心的主要问题，世界卫生组织才呼吁对含糖饮料征税，故此举是为了限制含糖饮料的使用及盛行。故选A。5What do the figures in the second paragraph suggest?AAdult obesity is ignored at present.BObesity is a severe worldwide problem.CObesity can block economic development.DObesity is most serious in developed countries.解析：选B推理判断题。根据第二段
15、中的“in 2014 more than onethird of the adults in the world were overweight, and 500 million were considered obese”“in 2015, 42 million children under age 5 were either overweight or obese. Almost half of these boys and girls live in Asia and onefourth in Africa”可知，作者引用多种数据是为了说明肥胖在全球范围内是一个严峻的问题。故选B。6Wh
16、at does the underlined word “enacted” mean in the passage?AAbolish.BPass.CPromise. DReduce.解析：选B词义猜测题。根据上文的“taxing sugary drinks would reduce consumption and save lives”可知，对含糖饮料征税会减少消费和挽救生命，故下文Waqanivalu所举的墨西哥的例子就是为了印证这一观点，画线词所在句表示的是墨西哥在2014年通过了对含糖饮料征收10%的税的法律。由此可知，画线词意为“通过(法律)”，故选B。7What does the e
17、xample of Mexico prove?ATax policies are unfair to the poor.BSugary drinks are a threat to health.CThe poor consume more sugary drinks.DTaxing sugary drinks makes a difference.解析：选D推理判断题。根据倒数第二段中的“. by the end of the year, there was a 6 percent drop in the consumption of such drinks. Among poor peop
18、le, the number of people who consumed sugary drinks dropped by 17 percent”可知，作者援引墨西哥的例子是为了说明对含糖饮料征税是起作用的。COn a very hot June day in 1876, when Reginald A. Fessenden was 10 years old, he surprised his friends by hitting them with snowballs, the result of his first experiment.Reginald had noticed that
19、 winter ice in the shade took a long time to melt. He wondered whether packing snow in a box and storing it in the shade would keep it from melting. Sure enough, it did, and Reginald hit his amazed friends with snowballs in summer.Young Reginald was driven to find answers to questions that puzzled h
20、im. As a hard worker and good student, Reginald had a masters degree in mathematics when he was 14. By age 20, he had moved from his native Canada to the British colony (殖民地) of Bermuda, about 650 miles off the North Carolina coast. There he became a teacher and schoolmaster.Attracted by science, he
21、 contacted (联系) Thomas Edison, writing, “Do not know anything about electricity, but can learn pretty quick.”Edison replied, “Have enough men now who do not know about electricity.” But Reginald kept after Edison, and soon he became chief chemist of Edisons electrical works in New Jersey.In 1900, Re
22、ginald moved to Washington to work for the US. Weather Bureau on an exciting question: Can the dotanddash (点划相间的) wireless radio of Italian inventor Guglielmo Marconi also carry the human voice?Reginald and a Weather Bureau team set up two 50foottall antennas (天线) on Cobb Island, Maryland, in the Po
23、tomac River about 50 miles south of Washington. Using steam engines to produce electricity and improving the technical work of many other scientists, Reginald sent speech over a distance of one mile on December 23, 1900. It was an achievement that prepared an easy way for cell phone conversations. O
24、n Christmas Eve 1906, Reginald sent the worlds first voice radio broadcast: a holiday program featuring himself playing the violin and singing.Reginald became rich and famous because of several communications inventions and was buried in Bermuda, where he died in 1932.语篇解读：本文是一篇记叙文。文章介绍了科学家Reginald
25、A. Fessenden的生平。8How did Reginald get snowballs in hot June?ABy storing snow in a lab.BBy collecting melting ice.CBy creating snow with water.DBy keeping snow in the shade.解析：选D细节理解题。由第二段中的“He wondered whether packing snow in a box and storing it in the shade would keep it from melting. Sure enough,
26、 it did”可知D项正确。9We can infer from Paragraph 3 that Reginald _.Adreamed of being a teacherBbecame a schoolmaster at 14Cwas proud of his achievementsDwas very curious and intelligent解析：选D推理判断题。由第三段中的“Young Reginald was driven to find answers to questions that puzzled him . good student, Reginald had a
27、 masters degree in mathematics when he was 14”可推断，Reginald求知欲强且聪明。10The text is written mainly to _.Atell some stories about ReginaldBintroduce some great inventionsCexplain how to get snowballs in summerDencourage readers to take an interest in science解析：选A写作目的题。通读全文可知，本文主要介绍了Reginald的生平，包括上学、工作、发明、去世等。