1、课时作业(十七)Unit 5Canada“The True North”Section Warming Up & ReadingPrereading(本栏目内容，在学生用书中以独立形式分册装订！).阅读理解AOn any given day，you can find most 10yearold boys throwing a ball around outside，riding their bikes，or playing video games.But Braden Baker is different.Braden is a hearing impaired (受损的) 5thgrade
2、r and has to wear hearing aids (助听器)Unluckily，Bradens dog Chewy found his hearing aids on the floor and destroyed themnot once，but twiceand they had to be replaced.But at $3,500 to $6,000 a pair，Bradens carelessness was costly.Bradens mother Ashley sat Braden down and had a long talk about taking be
3、tter care of his hearing aids，explaining just how much they cost.“I told him that he was lucky we could buy another pair and that some people couldnt afford a new pair，”Ashley said.Those words clearly stuck in Bradens mind，who realized that not every child who needed hearing aids could afford them.S
4、o recently，the 10yearold took it upon himself to start a GoFundMe page to raise money for those who arent so lucky.Braden made a video to explain why he wanted to raise money.Ashley said，“We werent really sure how it would turn out.He began with a goal of $1,000.We woke up the next morning and found
5、 that it had raised $400.” This encouraged him to start making even more videos.Fastforward a few months and Bradens GoFundMe page has raised over $15,000，which Braden donated to the Oticon Hearing Foundation.And that money will be used to help other families buy hearing aids for their children.The
6、project has not only taught Braden the value of money，but according to his mom，“hes learned that if you put a small idea into action，amazing things can happen.”As for Bradens advice to those looking for ways to give back to others？“Dont give up！Any small idea can get really big.”语篇解读本文是记叙文。10岁的听障男孩发
7、起筹资网页，帮助贫困听障儿童购买助听器。1Why did Braden change his hearing aids?A. He wanted a better pair of hearing aids.BThe old pairs were destroyed by his dog.CHis hearing problem became more serious.DHe lost the old pairs because of his carelessness.解析：细节理解题。由第二段中的“Bradens dog Chewy found.they had to be replaced”
8、可知，Braden的狗找到并弄坏了他的助听器。答案：B2What has led to Braden starting a GoFundMe page?A. His mothers words about the usefulness of hearing aids.BHis mothers encouragement for him to do good things.CHis wish to help poor children with hearing problems.DHis need to buy a new pair of hearing aids.解析：细节理解题。由第四段中的
9、“Bradens mind，who realized that.raise money for those who arent so lucky”可知，Braden了解到有些听障儿童买不起助听器，因此他想筹资帮助这些孩子。答案：C3How did Braden and his mother feel when the page was started?AUncertain.BSatisfied.CHopeful. DUnexpected.解析：细节理解题。由第五段中的“We werent really sure how it would turn out”可知，一开始发起筹资网页时，Brade
10、n和妈妈都不确定结果会怎样。答案：A4What has Braden learned from working on the project?AOne should always use money smartly.BA small idea can make a big difference.CVideoing is a good way to reach people.DIts important to dream big and hold on to it.解析：细节理解题。由倒数第二段中的“hes learned that if you.things can happen”可知，Bra
11、den通过筹资学到一件事：将小小的想法付诸行动，会有很棒的结果出现。答案：BBThe Bow Seat Ocean Awareness Student Contest (竞赛) “invites middle schoolers and high schoolers from around the world to create pieces of art that look at human influences on our oceans，”says program director Alyssa Irizarry.The contest was founded in 2011 by Li
12、nda Cabot，a visual (视觉的) artist and ocean activist based in Westwood，Massachusetts.It has since reached nearly 10,000 kids worldwide.No entry fee is required，but students who want to enter must be between the ages of 11 and 18.Students are required to “create a piece that not only presents problems，
13、but also communicates a message that encourages others to act.”Students can compete in one of five categories (种类)：visual art，poetry，prose，film，and music.They are given a school year to work on their pieces，which are then entered into one of two categories：junior or senior.Irizarry says that visual
14、art is the most popular category，followed by poetry.Winners receive scholarship (奖学金) awards of up to $1,500 and see their work appear in different places to help raise awareness about ocean health.When most people think about ocean science，they think about the tools that ocean scientists use.Irizar
15、ry has a different idea.“Art is a really powerful tool for people to connect with nature and to learn about the world around them，”she says.“It requires you to slow down，notice things，think，and ask questions.”Making art，Irizarry adds，helps a person create a connection to the world.That connection “t
16、urns awareness of a problem into action.”Irizarry has a message for all kids who want to help protect our oceans：“Do something to make a difference.”语篇解读本文是说明文。某海洋知识学生竞赛借助艺术反映与海洋相关的问题，提高人们的海洋环境保护意识。5. What can we learn about the rules of the contest?AEach winner receives $1,500.BContestants must be
17、of certain ages.CStudents need to pay to enter the contest.DContestants can compete in more than one category.解析：细节理解题。由第二段中的“students who want to enter must be between the ages of 11 and 18”可知，该竞赛对参赛学生的年龄有要求。答案：B6To win the contest，students must_.A. be good at making visual artBhave a wide knowledg
18、e of geographyCstart preparation one year ahead of timeDbe able to influence others with their works解析：细节理解题。由第三段中的“Students are required.encourages others to act”可知，该竞赛要求参赛作品既能反映问题又能引发他人行动起来，因此，想要获奖，参赛学生必须创作出有影响力的作品。答案：D7Which category attracts the largest number of students?AVisual art. BPoetry.CF
19、ilm. DMusic.解析：细节理解题。由第五段中的“visual art is the most popular category”可知，视觉艺术门类最受欢迎。答案：A8What does the underlined work“It”in Paragraph 6 refer to?AThe contest BThe world.CNature. DArt.解析：篇章结构题。由倒数第三段中Irizarry所说的话可知，她认为艺术能强有力地将人与自然联系起来，使人们了解周围的世界。它(艺术)需要人们放慢脚步、关注事物、思考和发问。答案：DCCanada is home to many mou
20、ntains，which are found in every province.The highest mountain is Mount Logan in the Yukon，and many other mountains of the Canadian Rockies reach high into the blue skies.The Rocky Mountains begin in British Columbia and snake (蜿蜒) nearly 3,000 miles to their smaller low hills in New Mexico.Many of t
21、he mountains sit within state and national parks.A large number of popular tourist attractions are among the longest of all Canadian mountains.Many people spend entire vacations in seeing the Rockies.Banff National Park in Alberta is one of the most beautiful places in the world.Home to Lake Louise，
22、the national park is on the top of many peoples dream vacations.Several of Canadas top ski places are on the peaks (山顶) of the Canadian Rockies.While the Appalachian Mountains are mainly known as a US mountain range (山脉)，they dont end once they hit the Canadian border.While not the longest of the Ca
23、nadian mountain ranges，the Appalachians snake nearly 2,000 miles from the Atlantic coast of Canada to Alabama.The things to do in this region are as various as the provinces themselves.Whether youre looking to experience the culture or the scenery，youll have ample chances to experience what makes Ca
24、nada such an amazing place to explore.Running along the British ColumbiaYukon Territory，the Pelly Mountains set the stage for adventures.Several Yukonbased shops that sell equipment for outdoor activities bring adventurers to the Pelly Mountains for vacations.On these trips，youll find adventures tha
25、t are not easy to find in the city.One day，you could float down a mountain river and then hike a mountain path.These Canadian mountains also offer a lot of fishing opportunities in the spring and summer.语篇解读 加拿大有很多有名的山脉，本文介绍了其中的一些。9What do we know about Banff National Park?AIts home to one of Canada
26、s top ski places.BIts a popular place for taking a vacation in Canada.CIts home to the most popular part of the Rockies.DIts considered the most beautiful place in the world.解析：推理判断题。根据第二段的“.the national park is on the top of many peoples dream vacations.”可知，这个公园是人们在加拿大度假很受欢迎的去处。答案：B10. What does th
27、e underlined word “ample” in Paragraph 3 mean?AEnough. BNew.CFew. DValuable.解析：词义猜测题。根据第三段的“The things to do in this region are as various as the provinces themselves.”可知，阿巴拉契亚山脉有“足够的”机会让人们体验加拿大的风景和文化。答案：A11According to the text，what are you most probably advised to do in the Pelly Mountains?ATo fis
28、h there anytime you want.BTo float down a mountain river all day.CTo enjoy a quiet vacation on your own.DTo explore and have thrilling experiences.解析：推理判断题。根据末段的“the Pelly Mountains set the stage for adventures”以及“youll find adventures that are not easy to find in the city”可知，这个地方适合探险和经历刺激的事情。答案：D.七
29、选五Rainbows (彩虹) are one of the most beautiful works that nature creates._1_If youve ever seen one，consider yourself lucky.Rainbows can be seen when light passes through raindrops，says Kristin Calhoun，a research scientist studying the conditions of weather.When sunlight passes through raindrops，the l
30、ight bends，as it enters a droplet.As it leaves the droplet，the light separates into different wavelengths (波长)_2_The seven colorsred，orange，yellow，green，blue，indigo and violetbend in seven different directions.Red light，for example，bends in a different way than violet light._3_It also explains why r
31、ainbows look like an arc (弧)Sometimes，however，rainbows can actually form a circle that you can see in a plane with the right conditions._4_“There is an even better chance when the sun is at a lower level，early or later in the day，”Calhoun says.And another key is to face the rain and have your back t
32、o the sun._5_“Small showers and storms often form in late afternoon in this area，”Calhoun says.“These types of showers often produce heavy rain，but remain isolated (孤立的) over the center of the island.”AThere are lots of stories relating to rainbows.BRainbows are created by light through raindrops.CA
33、nd each wavelength appears as a different color.DWith the conditions just right，Hawaii gets lots of rainbows.EThe best time to catch a rainbow is when its sunny and raining.FBut they can be seen only if you are in the right place at the right time.GThis is why the person on the ground sees each colo
34、r at a different location.语篇解读本文是说明文。彩虹是大自然最美的作品之一，在什么样的条件下才能欣赏到美丽的彩虹呢？1解析：上文“Rainbows are one of the most beautiful works that nature creates”与F项内容形成转折关系，即彩虹虽然美丽，但人们必须在合适的时间和地点才能看见它。答案：F2解析：C项中的wavelength和color分别复现上文中的wavelengths和下文中的colors，起到承上启下的作用。答案：C3解析：上文中的“The seven colors.bend in seven different directions.Red light，for example，bends in a different way than violet light”与G项内容形成因果关系。答案：G4解析：本段涉及彩虹出现的天气条件，E项内容符合该话题；且E项中的sunny and raining与下文中的the sun和the rain存在词汇复现关系。答案：E5解析：下文中的this area和the island指代D项中的Hawaii，本段说明夏威夷气象条件合适，因此经常出现彩虹。答案：D