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1、Unit 6 Disaster and hope 课时作业第一节、阅读理解阅读以下短文，从每题所给的A、B、C和D四个选项中，选出最正确选项。AChildrens heavy digital media use is associated with a risk of being overweight later in adolescence. A recently completed study shows that six hours of leisure-time physical activity per week at the age of 11 reduces the risk o
2、f being overweight at 14 years of age associated with heavy use of digital media.Obesity in children and adolescents is one of the most significant health-related challenges globally. A study carried out by the Folkhalsan Research Center investigated whether a link exists between the digital media u
3、se of Finnish school-age children and the risk of being overweight later in adolescence. In addition, the study looked into whether childrens physical activity has an effect on this potential link.The study involved 4, 661 children who reported how much time they spent on sedentary （久坐的）digital medi
4、a use and physical activity outside school hours. The study indicated that heavy use of digital media at 11 years of age was associated with a heightened risk of being overweight at 14 years of age in children who reported engaging in under six hours per week of physical activity in their leisure ti
5、me. In children who reported being physically active for six or more hours per week, such a link was not observed.The study also took into account other factors potentially impacting obesity, such as childhood eating habits and the amount of sleep， as well as the amount of digital media use and phys
6、ical activity in adolescence. In spite of the confounding （混杂的） factors, the protective role of childhood physical activity in the connection between digital media use in childhood and being overweight later in life was successfully confirmed.“The effect of physical activity on the association betwe
7、en digital media use and being overweight has not been extensively investigated in follow-up studies so far, says Postdoctoral Researcher Elina Engberg. nIn this study, the amount of physical activity and use of digital media was reported by the children themselves, and the level of their activity w
8、as not surveyed, so there is a need fbr further studies.” l.The subjects of the study were.A.surveyed three years later after the first oneB.those who used sedentary digital media a lotC.4661 school-aged children suffering from obesityD.lacking in sufficient leisure-time physical activity2.What does
9、 the underlined word “heightened in paragraph 3 probably mean?A. major B. particular C. increasing D. slightWhat was the focus of the recent study?A. Different factors contributing to kids* overweight problem.B. The role of childhood eating habits in dealing with childrens obesity.C. Impact of kids1
10、 exercise on the link between digital media use and obesity.D. Teens* health-related challenges resulting from heavy digital media use.3. What might be talked about in the following paragraph?A. Reasons for carrying out further studies.B. Guidelines for children and adolescents.C. Approaches to solv
11、ing teens1 weight problems.D. Connections between obesity and physical activity.【参考答案】A 推理判断题。根据第一段“A recently completed study shows that six hours of leisure-time physical activity per week at the age of 11 reduces the risk of being overweight at 14 years of age associated with heavy use of digital
12、 media.”可矢口， 在 11岁时每周进行6个小时的休闲体育活动，可以降低14岁时因过度使用数字 媒体而超重的风险。要得出这个结论，说明研究人员对参与调查的学生进行了跟 踪调杳，分别在11岁时和14岁时进行，应选A项。1. C词义猜想题。根据上下文可知，该研究说明，儿童在11岁时过度使用数 字媒体与14岁时超重风险增加有关，据报告，这些儿童每周在闲暇时间进行体 育活动缺乏6小时。而在那些报告每周运动6小时或以上的儿童中，这种联系 没有被观察到。应选C项。2. C细节理解题。根据第二段的内容可知，此研究调查了芬兰学龄儿童使用数 字媒体与青少年后期超重风险之间是否存在联系以及儿童的体育活动是否
13、对这 种潜在联系有影响。应选C项。3. B推理判断题。接下来的段落应该是全文的总结：根据研究结论，给孩子和 青少年提建议，应选B项。TRAVEL ADVISORY （公告）Here are a few things you should know before you take off on your next trip.Frontier Airlines Face Covering RequirementAs required by federal law, the Centers for Disease Control （CDC） Order and Transportation Secu
14、rity Administration （TSA） Security Directive, all passengers and employees must wear a face covering over nose and mouth throughout the Frontier travel experience including at ticket counters, gate areas, baggage claim and onboard all flights. Face coverings are not required for children under the a
15、ge of 2. Face coverings must fit snugly（紧密地）over your nose and mouth and be secured under the chin. Not wearing an approved face covering is a violation of federal law and you may lose future travel privileges on Frontier.* Persons with a disability who cannot wear a mask, or cannot safely wear a ma
16、sk, because of that disability as defined by the Americans with Disabilities Act can apply for a face mask exemption（豁免）.To learn about pre-t ravel exemption requirements, click here.Temperature Screening RequirementAnyone with a temperature of 100.4 degrees Fahrenheit or higher will not be able to
17、board the plane. If time allows, we will give customers the opportunity to rest before receiving a second check. If the second temperature screening is 100.4 degrees or higher, our team will help the customer to rebook travel on a later date when they are feeling better.Know Your Travel PolicyCDC is
18、sued an Order on January 12, 2021 (effective since January, 26, 2021) requiring proof of a negative COVID-19 test or documentation of having recovered from COVID-19 for all air passengers arriving from a foreign country to the US.4. Who can legally board a Frontier Airlines flight without wearing a
19、face covering?A. A senior manager of Frontier Airlines.B. A one-year-old baby.C. A blind man in a wheelchair.D. A high school student.5. Which of the following is TRUE according to the text?A. Passengers without proper face coverings may be banned from flying with Frontier Airlines in the future.B.
20、Passengers with a high fever will have their flights rescheduled.C. Passengers can take off their face coverings when they pick up their checked baggage.D. Passengers without proof of a negative COVID-19 test cant enter the US on January 0,01.6. Where is this text most likely from?A. A guidebook.B.
21、A brochure.C. A website.D. A newspaper.【参考答案】BCAD 第二节、语法填空What will our cities be like in 2050? How much will artificial intelligence advance? Some scientists 1 (make) different predictions recently.Joel E. Cohen from the The Rockfeller University says 2 is likely that by 2050 the majority of the pe
22、ople in the world will live in urban areas, and will have a 3(significant) higher average age than people today. Cities will be 4 only realistic solution to housing a population that is expected to expand 59.7 billionby 2050.And the technology will keep 6 (advance) rapidly. According to Bill Michell
23、, the late director of MIT Media Labs Smart Cities research group, cities of the future wont look like “some sort of science-fiction fantasy or Star Trek” , but virtual reality will change 7 we live. Self-driving cars will make the roads 8（secure）, driving more efficient, and provide faster transpor
24、t.Charles Ebinger at the Brookings Institution thinks that by 2050 we will also have a so-called “smart grid where all of our 9 （appliance） are linked directly to energy distribution（分布）systems, 1（） （allow） for real-time pricing based on supply and demand. Such a technology would greatly benefit mos
25、t people and reduced the consumption消耗）of fossil fuel energy.【语法填空参考答案工1 ： have made 2: it 3: significantly 4: the 5: to 6: advancing7: how 8: securer 或 more secure 9: appliances 10: allowing 第三节（总分值15分）你校正在组织英语作文比赛。请以身边值得尊敬和爱戴的人为题，写一篇短 文参赛。内容包括：1 .人物简介（姓名、外貌、职业等）；.尊敬和爱戴的原因（性格、品质、事迹等）。 注意:词数80左右；题目已
26、给。The People I Respect and Love【答案】Mr. Zhang, aged 50, is my favourite English teacher. He is so knowledgeable, humorous and responsible that I respect and love him so much.Honestly speaking, his great patience and assistance have a great impact on me. It was Mr. Zhang who made me perceive the impor
27、tance of learning English well. Had it not been for his guidance and encouragement, I couldnt have won first prize in the English Contest. Without his aid, I wouldnt have boosted my integrated skills in English, ril definitely remember his kindness and help forever.Mr Zhang is a very respectable tea
28、cher indeed! I do thank him for what he did for me.【解析】【分析】本篇书面表达属于应用文，要求考生以身边值得尊敬和爱戴的人为题, 写一篇短文。【详解】1 .词汇积累帮助：help一assistance说：speak一address重要性：significance一importance提高：improve一boost2.句式拓展简单句变复合句原句： Mr. Zhang, aged 50, is my favourite English teacher.拓展句： Mr. Zhang, who is 50, is my favourite English teacher.点睛高分句型 1 He is so knowledgeable, humorous and responsible that Irespect and love him so much.（运用 了 结果状语从句）高分句型 2 It was Mr. Zhang who made me perceive the importance of learningEnglish well.（运用了强调句）