【北师大版】2014届高考英语一轮复习指导课时作业：Unit 19 B卷 Word版含解析

　　Unit 19 B卷

　　一、阅读理解

　　A

　　The climate secrets of the deepest part of the ocean，the Marianas Trench(壕沟)in the western Pacific Ocean，have been explored by scientists.

　　The international team used a submersible，designed to withstand great pressure，to study the bottom of the 10.9km­deep underwater canyon.Their early results reveal that ocean trenches are acting as carbon sinks.This suggests that they play a larger role in regulating the Earth’s chemistry and climate than was thought.

　　Although two explorers，Jacques Piccard and Don Walsh，reached the deepest part of the Marianas Trench—a point called the Challenger Deep—in 1960，no humans have been back since.And the scientific missions，including this recent visit to this deepest spot，have been carried out using unmanned underwater vehicles.

　　Lead researcher Professor Ronnie Glud，from the University of Southern Denmark and the Scottish Association for Marine Science，said that working at more than 1,000 atmospheres of pressure was challenging，but advances in technology had made it possible.

　　He told BBC News，“This is the first time we have been able to set down sophisticated(精密的)instruments at these depths to measure how much carbon is buried there.”The tests also helped the scientists to assess the storage of carbon at those dark depths.

　　This is not the first time deep sea trenches have surprised scientists.Recent studies by University of Aberdeen’s Oceanlab team have revealed that marine life is much more abundant in this difficult habitat than was previously thought.In 2008，they filmed the deepest living fish ever to be caught on camera—a 17­strong shoal(鱼群)found at depths of 7.7km in the Japan Trench，and they discovered that other animals such as amphipods were present in large numbers even deeper.Dr Alan Jamieson，from Oceanlab，said the new study was helping researchers to build up a better idea of what happens in the deepest of the deep.

　　1．From the description of carbon sinks we learn that ______.

　　A．they have been on the ocean floor for thousands of years

　　B．the trenches can be used to control climate

　　C．there are many chemistry resources on the ocean floor

　　D．the carbon sinks contribute to changes in the climate

　　2．What can be inferred from the passage?

　　A．Many scientists have died in the Marianas Trench during explorations.

　　B．Jacques Piccard and Don Walsh came back successfully from the Marianas Trench.

　　C．Unmanned underwater vehicles have replaced humans in exploring the floor since 1960.

　　D．The explorations of the trench have not been launched until 1960.

　　3．What do we know from Ronnie Glud’s words?

　　A．Humans can’t work at more than 1,000 atmospheres of pressure.

　　B．The research aimed to assess the carbon storage at those dark depths.

　　C．Carbon is the most important mineral resource on the ocean floor.

　　D．Finding out the storage of carbon is one of the main tasks of scientists.

　　4．The last paragraph is mainly about ______.

　　A．the surprising findings of marine life

　　B．the bad environment of marine life

　　C．the deepest living fish

　　D．the marine lives in the Japan Trench

　　B

　　Oprah Winfrey，the queen of American daytime talk TV，is considered one of the most powerful women in the world.Now，after 25 years' hosting The Oprah Winfrey Show，the star has announced she is calling it quits.

　　According to the Los Angeles Times，the move“signals the beginning of the decline for the daytime talk show”．More women are working full­time jobs，and people are turning to cable(有线电视)and pre­recorded shows for their entertainment.

　　It may be that Oprah isn't quitting so much as moving on.She has created the Oprah Winfrey Network(OWN)，and will most likely move her show to the network.If audiences around the world need Oprah，they will know where to look.

　　Oprah Winfrey was born to a single teenage mother in a small town in rural Mississippi，US.As a child，she lived with poverty and abuse.But she got a job at a local radio station，where her honesty，emotional style won her many fans.She quickly rose through the ranks of radio and television before launching her own production company and starting her own show.

　　Oprah's talk show was not the first of its kind，but it quickly became the best and most popular.It made talk shows popular，and others jumped in to start similar shows.But while other talk shows turned ugly，featuring guests who argued and attacked each other with chairs，Oprah_rose_above_the_mess.

　　“Part of her power lies in the fact that her life story resonates(产生共鸣)with her audience，as a kind of version of the American dream，”writes Kevin Connolly，a reporter with the BBC.

　　She became a star because of the way she opened up about her problems to her audience.She shared her own struggles with relationships and weight.She focused on self­help.Connolly believes“something in her honesty and her sometimes painfully emotional directness struck home with a certain type of American”．

　　5．Which of the following statements is NOT true?

　　A．The stop of Oprah's show reflects the decrease of audience.

　　B．Oprah hosted her show for about 25 years.

　　C．American talk show was pioneered by Oprah.

　　D．Oprah used to be a radio presenter.

　　6. What does the underlined sentence mean?

　　A．Oprah could deal with the guests fighting very well.

　　B．Oprah's show stood out with her unique style.

　　C．Oprah turned a deaf ear to other people's quarrel.

　　D．Oprah's fame rose because lots of people watched her show.

　　7．From Kevin Connolly，we know people like Oprah's show for all the reasons EXCEPT that ______.

　　A．Oprah always shares people's life stories in her show

　　B．the audience are touched by Oprah's honesty and frankness

　　C．Oprah's life story reflects the truth of American dream

　　D．some audience are inspired by Oprah's show

　　8．According to the text，Oprah______.

　　A．always volunteers to help those who need help

　　B．has practiced presentational skills since she was young

　　C．believes that one should rely on himself to solve problems

　　D．calls on women to work full­time jobs

　　二、任务型读写

　　阅读下面短文，根据所读内容在表格中的空白处填入恰当的单词。注意：每个空格只填一个单词。

　　Many people have problems finding happiness in life and a lot of people think they need money in order to have a better quality of life，but they're wrong.You can create a better quality of life for yourself in numerous ways.Find out what it is that makes you happy and make sure that you focus on the happy moments in your day rather than the negative ones.

　　Spend time with your family and friends as much as possible.You'd be very surprised how rewarding it is when you're dealing with something difficult in your life.Everyone relies on their family and friends at some point so don't hesitate to call them up once in a while to spend time together.

　　Try learning something new every day.The more you learn the smarter you'll feel，and it will result in a better quality of life.

　　When you don't complete what you want in a day it can directly influence your next day's work.Elbert Hubbard has also said，“The best preparation for good work tomorrow is to do good work today.”Do not fall into the vicious circle(恶性循环)of exhausting yourself by making up for yesterday while always leaving today and tomorrow aside.

　　You should have an area where you can sit down and really relax for a little while to think about everything going on in your life.This will give you a clear picture of everything you need to do and everything you want to do that will make you a lot more determined to reach your goals and therefore create a better quality of life.

　　In a word，it is important to live happily while we are here because life is short and we shouldn't waste any time being upset or depressed.

　　Topic Creating a better quality of life

　　Theme 1.______ in life can be created in numerous ways.

　　2.______ *Focus on the happy moments rather than the negative ones. *3.______ your family and friends.They are the people whom you can 4.______ on.

　　*Keep 5.______.It will help keep you smart.

　　*Never 6.______ till tomorrow what you can do today，otherwise，you will not be 7.______ for tomorrow.

　　*Spend some time 8.______ the things you need to do and the things you want to do.

　　Conclusion Living a 9.______ life is of great importance.Life is short.Time shouldn't be 10.______.

　　参考答案与解析

　　课时作业(三十八)

　　Unit 19　B卷

　　一、阅读理解

　　1．解析：推理判断题。根据第二段This suggests that they play a larger role in regulating the

　　Earth’s chemistry and climate than was thought.可推断，答案为D项。

　　答案：D

　　2．解析：推理判断题。根据第三段Although two explorers，Jacques Piccard and Don Walsh...no humans have been back since.可推断，答案为B项。

　　答案：B

　　4．解析：主旨大意题。根据末段Recent studies...marine life is much more abundant in this difficult habitat than was previously thought.可知，答案为A项。

　　答案：A

　　解题导语：虽然脱口秀女皇奥普拉·温弗瑞已经宣布退出自己主持的节目，可是，这个在脱口秀节目中叱咤风云、所向披靡的传奇人物依然是人们心目中的一座丰碑。

　　5．解析：细节理解题。根据第五段第一句可知脱口秀女皇奥普拉并非美国脱口秀节目的先驱。

　　答案：C

　　6．解析：推理判断题。第五段中提到其他脱口秀节目的特点以低俗、争论和互相攻击为主。而本段开头部分提到她的节目最优秀、最受人欢迎。由此可推断她的节目以独特的风格而出类拔萃。

　　答案：B

　　7．解析：细节理解题。倒数第二段的前半部分提到她的魅力部分在于她的人生故事能与读者产生共鸣，而不是在节目中分享别人的人生故事，所以A项不是人们喜欢她节目的原因。

　　答案：A

　　8．解析：推理判断题。根据最后一段中的“She focused on self­help.”可以推断她认为人们应该依靠自己解决问题。

　　答案：C