2015-2016学年度第一学期深圳市高二英语必修五Module6 Animals in Danger单元测试题

必修5 Module 6单元测试题
第一部分 阅读理解（共两节，满分40分）
第一节（共15小题;每小题2分，满分30分）
阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。
A
Carnival’s focus is ( http: / / www.21cnjy.com )fun cruising for everyone. The line has promoted itself as the “fun” cruise line for decades. Big is as big does — the ships feature water slides, casinos (娱乐场)，and plenty of bars. With 24 ships, Carnival is certainly the most recognized name in cruising.
If you like the flash ( http: / / www.21cnjy.com ) of Vegas mixed with a big dose of beach party, you’ll love Carnival’s brand of flamboyant (华丽的）fun. Over the last few years the line has greatly expanded its dining choices, both free and fee-based, and bar offerings. The industry leading line has made changes over the years. They have caused an overall increase in quality in this line. Other lines are great, too. We’ve got tie-ins with well-known chef Guy Fieri, who delivers fancy burgers at a self-named spot on several of Carnival’s ships. There are new sports bars operated together with EA Sports, and new comedy clubs with George Lopez-procured comedians on several of Carnival’s ships. Pool areas on all ships are lively with hot tubs and corkscrew water slides. Casinos see lots of action. For a date night, the steak houses are worth the extra fee. That said, not all ships have the same features and it’s a big fleet, so read ship descriptions carefully.
Who’s on board Mostl ( http: / / www.21cnjy.com )y American young and young-at-heart adults, who come aboard to have a great time. Camp Carnival, one of the best family programs on the main stream lines, makes it easy for parents and grandparents to bring their kids and then let them go.
Where they go ( http: / / www.21cnjy.com ): Heavily North America including the Caribbean, Bahamas, Alaska, Canada, New England, Mexico, Hawaii, and Bermuda, but also some anises in Europe, One ship is based in Australia, and marketed to Australians.
Contact: (800) 227-6482 or 305/599-2200;
1. By taking the sh ( http: / / www.21cnjy.com )ips, you may be able to do all of the following EXCEPT ________.
A. having fun in a casino
B. going to a bar for a drink
C. having fun in a water slide
D. visiting a store on board
2. The cruise lin ( http: / / www.21cnjy.com )e “Carnival’s brand of flamboy-ant fun” may attract those who ________.
A. love beach parties
B. want bar offerings
C. are interested in an old ship
D. want to stay in Vegas for weeks
3. What do we know about the program mentioned in Paragraph 3
A. It aims at attracting the elderly.
B. It’s suitable for a whole family.
C. It’s mainly for young-at-heart adults.
D. It’s available in all of Carnival’s cruise lines.
4. Carnival’s cruise ships do NOT go to ________.
A. the Caribbean B. Australia
C. Greenland D. New England
B
Lisa Milella is a ( http: / / www.21cnjy.com ) vet. She was surprised when she was diagnosed (诊断）with motor neurone (运动神经元）disease in August, 2013. She was just 39 years old then. After her diagnosis, she was told the average life expectancy for sufferers of this disease is just two to five years. But instead of feeling sorry for herself, she decided to spend the rest of her life helping as many sick or injured animals around the world as she could.
Lisa is one of the wor ( http: / / www.21cnjy.com )ld’s few specialist animal dental surgeons. After she was told she had the disease, she had to close the Veterinary Dental Surgery. Back then she was no longer able to operate. She knew something was wrong when she could not work one of her machines and her legs began to give out.
After closing ( http: / / www.21cnjy.com ) the Veterinary Dental Surgery, Lisa created a list to help bears, orangutans, leopards and tigers around the globe. She first flew to Norway to oversee the life-saving surgery of overweight Pingky, an orangutan raised in chains and fed on sweets and soft drinks. Three days after helping to save Pingky, she revisited International Animal Rescue in Java, which rescues slow lorises from the black market pet trade. In May, 2014, she flew to Machu Picchu in Peru to see alpacas on the Inca trail. After that she visited the Amazon rainforest in Ecuador and wildlife on the Galapagos Islands.
Lisa’s first ( http: / / www.21cnjy.com ) patient was a 180kg bear called Anthony in Agra, India. Over the years, she has helped operate on over other 100 dancing bears. And in June, 2014 she returned to India, where she taught a team how to perform surgery.
Her final list item ( http: / / www.21cnjy.com ) is to persuade 100 strangers to raise 100 per person for International Animal Rescue. The amount has been exceeded (超过） and money continues to pour in on her Just Giving page.
5. When Lisa Milell ( http: / / www.21cnjy.com )a was told she was suffering motor neurone disease, she ________.
A. stayed very calm and positive
B. felt sad and thought it was unfair
C. expected treatment to recover soon
D. wanted to make good use of her rest days
6. Why did Lisa Milella fly to Norway
A. To receive the surgery on herself. .
B. To visit animal dental surgeons.
C. To oversee an important surgery.
D. To perform surgery on an orangutan.
7. We learn the last aim on Lisa Milella’s list ________.
A. was suggested by an organization
B. was disappointing at first
C. is to raise 100,000
D. is a great success
8. What is the main idea of the text
A. A vet is flying all over the world for wildlife.
B. A vet is found to be suffering a strange disease.
C. A vet is raising money for International Animal Rescue.
D. A vet devotes the rest of her life to helping wild animals.
C
Last week when I ( http: / / www.21cnjy.com )was watching TV at home, my mother rushed in and told me an old man was lying on the ground in front of our building. I immediately took my first-aid kit and ran downstairs. The old man was suffering a slight heart attack. And I performed CPR on him. Luckily, an ambulance came soon and the old man was taken to hospital. Later that day I received a phone call from the hospital and was told what I did helped rescue the old man’s life. I was happy to hear that. Yet at the same time I felt a bit sad. There were many people around the old man when I ran downstairs. Yet no one performed first aid on him. They wanted to help, but they didn’t know how as they hadn’t attended a first-aid course.
I think everyone sho ( http: / / www.21cnjy.com )uld learn at least some basic first-aid techniques, which can be very vital. Here are my reasons.
First, you can gai ( http: / / www.21cnjy.com )n the knowledge, skills and confidence to act in an emergency. You never know when you might need them — you could be at home, at work, at school or on holiday. If you have the skills, you can act whenever you’re needed.
Second, you can be ( http: / / www.21cnjy.com )a resource for your community. For your immediate family, people in your street or the broader community, having more people with first aid skills helps build a stronger and more harmonious community.
Third, you cm s ( http: / / www.21cnjy.com )tay safe at work. Illness and injury can happen anywhere, anytime. With first-aid knowledge you can create a safe work environment and help meet your workplace’s safety requirements.
Fourth, it’s helpfu ( http: / / www.21cnjy.com )l to your future career. The first-hand experience you gain through learning first aid and using your skills could help you decide if you want to pursue a career in the health profession. It also shows your commitment to a career in the health profession when it comes to applying for jobs.
9. How did the author react when hearing his mother’s words
A. He decided to find some help.
B. He just wanted to have a look.
C. He went to help the old man quickly.
D. He wanted to take the old man to hospital.
10. The underlined word “vital” in Paragraph 2 means “________”.
A. simple
B. important
C. cheap
D. surprising
11. According to Paragraph 3, having first-aid skills means you can
A. act whenever necessary
B. always keep yourself safe
C. keep your family members safe
D. make important decisions for your community
12. Which of the following reasons is NOT mentioned by the author
A. Become confident to perform first aid.
B. Make your workplace safe to work in.
C. Make you a leader in your community.
D. Pursue a career in the health profession.
D
Don’t get surprised i ( http: / / www.21cnjy.com )f you see a lot of people who are overweight around you. According to CDC, in the US more than one-third of adults are obese (肥胖) today. As a nation, America has the highest obesity rate of any country in the world. This shouldn’t be news to anyone as the “obesity epidemic (流行病)” has been ongoing for more than ten years.
Many people ma ( http: / / www.21cnjy.com )y think the United States is the only country with the obesity problem. But that simply isn’t true. In fact, some of the fattest countries in the world might come as a surprise to many readers. The McKinsey Institute found, for example, that Saudi Arabia, the United Arab Emirates, Mexico, and South Africa rounded out the top five biggest nations in the world. Perhaps even more surprisingly, the study notes that in many of China’s largest cities, more than half the population is overweight.
The McKinsey Instit ( http: / / www.21cnjy.com )ute notes that around the world, there are more than 2.1 billion people who can be considered as overweight or obese. This is a figure that rises to a surprising 30% of the population. The study also found that there are actually more people who are overweight or obese than adults and children who are undernourished (营养不良的）across the globe.
Unfortunately, due ( http: / / www.21cnjy.com )in part to rising middle classes among developing countries (such as China) and a lack of effective solutions on the part of nations already struggling to fight against the condition, the world’s obesity epidemic is predicted to continue to spread over the next decade. The McKinsey study predicts that if the spread of obesity continues as fast as today，almost half the world’s population will be overweight or obese by 2030.
Obesity around the w ( http: / / www.21cnjy.com )orld is not a problem that can be ignored as it can lead to severe native economic results. Good ways should be found to fight against the disease.
13. What does CDC show about today’s Americans
A. More than one-third of them are obese.
B. Most of them live an unhealthy lifestyle.
C. Only less than two-thirds of adults are not obese.
D. They are heavier than people from any other country.
14. What is implied in the underlined sentence in Paragraph 2
A. Many people don51 consider themselves obese.
B. The obesity problem in the US isn’t that severe.
C. Some other countries have the obesity problem, too.
D. The US doesn’t have the most severe obesity problem.
15. Paragraph 4 mainly shows that obesity ________.
A. hasn’t drawn any attention
B. will become a worse problem
C. doesn’t spread as fast as before
D. isn’t serious in developing nations
第二节（共5小题;每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
What’s holding you bac ( http: / / www.21cnjy.com )k from having the life or career you want The answer for over 50% of people is overcoming fear. This can turn up in a variety of ways from doubt, worry, and anxiety. Maybe you’ve been told negatives，put-downs over and over again by other people. 16 It’s completely normal to be afraid in these situations, but you have a choice in how you let those thoughts shape your actions.
17 What’s at the ( http: / / www.21cnjy.com )root of this fear Where do these thoughts come from Really dig through the layers of the story you are telling yourself and find the reason. It’s possible that this belief was given to you by someone else and you’ve just been accepting it as true.
Create a support sy ( http: / / www.21cnjy.com )stem. While you are working, at meetings, or building a business, who is supporting you Many people believe they can “go it alone”, and don't need help. The reality is that most people who try to do everything on their own, waste a lot of time, and end up feeling burnt out. 18
Dare to dream. What ( http: / / www.21cnjy.com )are your dreams 19 In fact, all of our modem day conveniences: electricity, cars, airplanes, and computers were once dreams. Imagine if those inventors had held back because of what other people thought about them.
20 Understanding ( http: / / www.21cnjy.com ) where a negative belief comes from helps you move through the fear. Then you can start taking measures that help you achieve your goals. This sounds simple, but in feet it can be the hardest part. Knowing something on an intellectual level isn’t the same as putting it into practice. If you want any help around this, consider working with a coach.
A. Explore it.
B. Take action.
C. Create a simple plan.
D. They might be something deep in your mind.
E. Or perhaps you’ve tried reaching a goal but finally failed.
F. It doesn’t have to stop you from living the lifestyle you want.
G. Having a team to support you will help you reach your goals.
第二部分 英语知识运用（共两节，满分45分）
第一节完形填空（共20小题；每小题1.5.分，满分30分）
阅读下面短文，从短文后各题所给的四个 选项（A、B、C和D)中，选出可以填入空白处的 最佳选项。
Many children go t ( http: / / www.21cnjy.com )o bed late. If your child seems particularly comfortable to keep late hours, the 21 may run deeper than your household habits. Mary Carskadon is the director of the Chronobiology and Sleep Research Laboratory at Bradley Hospital, in Providence. She has studied the 22 of early-rising “larks” and “night owls” who go to sleep 23 among teenagers. Dr. Carskadon says that younger kids, too, tend toward one 24 or the other. Research suggests that our preference for 25 or late sleep patterns may be partly rooted in our genes; besides, our environment and age 26 influence them.
To tell whether you ( http: / / www.21cnjy.com )r child has a preference, 27 yourself: Does he or she sleep early, no matter what's going on Does he or she seem more 28 and cheerful at certain hours
Admittedly, my ( http: / / www.21cnjy.com ) own 29 , who attend day-care centers part-time, have already had their share of conflicts. They’ve missed a few early-morning field trips, and they aren’t especially tired at naptime. After Tom 30 school full-time, we realize we’ll have to 31 our former schedule. It is because we want the boys to get enough 32 .
Some experts ( http: / / www.21cnjy.com )say the sooner children make the change, the 33 it is. “The longer this pattern goes on, the more difficulty you’ll have 34 it,” warns Robert Doekel, M.D., a sleep specialist. But others suggest it’s all right to 35 the adjustment, as long as you do it gradually. 36 your child is used to turning in at 10:00 pm, don’t 37 until the night before the first day of school to ask the child to sleep at 8:00 pm. Once they do start 38 early, don’t let all the attractions and distractions (分心的事物）of modem 39 life keep them up late. Turn off the 40 ，pull up the covers, and tuck them in for their ten-plus hours of sleep.
21. A. chances B. influences
C. results D. reasons
22. A. expectations B. concerns
C. habits D. relations
23. A. hard B. late
C. willingly D. easily
24. A. tradition B. way
C. strategy D. schedule
25. A. strange B. relaxing
C. early D. regular
26. A. also B. never
C. hardly D. even
27. A. comfort B. ask
C. confirm D. tell
28. A. angry B. surprised
C. energetic D. disappointed
29. A. teachers B. relatives
C. parents D. sons
30. A. quits B. starts
C. leaves D. founds
31. A. give up B. make up
C. keep up D. set up
32. A. trips B. care
C. sleep D. exercise
33. A. crueller B. funnier
C. longer D. better
34. A. finding B. changing
C. creating D. protecting
35. A. require B. put off
C. accept D. pay off
36. A. Unless B. Though
C. While D. If
37. A. work B. attempt
C. wait D. agree
38. A. getting up B. taking off
C. standing up D. running away
39. A. career B. family
C. company D. school
40. A. water B. machines
C. gas D. lights
第二节（共10小题;每小题1.5分，满分15分） 阅读下面材料，在空白处填入适当的内容 (1个单词）或括号内单词的正确形式。
Every Friday means a ( http: / / www.21cnjy.com )trip to a senior nursing home downtown. During every second I spent in the nursing home, I realized the 41 (important) of my action. Every week, I walked around the dining hall, and one person after another invited me 42 (have) a talk. One woman, who happily said that we shared 43 same first name, shared some of her interesting stories with me. She told me something 44 inspired me to visit the nursing home 45 (regular). She said, “You’re the only person I am able to tell this to. You’ll come back next week，right ” She proudly showed me some postcards 46 (send) by her children and she would tell me the stories of them. Of course, not all of the conversations were 47 (enjoy). When she talked to me about how her 13-year-old daughter would graduate from middle school this year, I just nodded 48 (do) nothing. Because I knew her daughter 49 (graduate) from middle school decades before.
50 I could not add mo ( http: / / www.21cnjy.com )re years to the lives of these elderly people, I could give them something simple. I made them know that in this fast-paced world, they were remembered. And we, young people, still cared about them and were there for them.
第三节 写作（共两节，满分35分）
第一节短文改错（共10小题；每小题1分，满分10分）
假定英语课上老师要求同桌之间交换修改作文，请 ( http: / / www.21cnjy.com )你修改你同桌写的以下作文。文中共有 10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号（/\），并在其下 面写出该加的词.
删除:把多余的词用斜线(\)划掉。
修改:在错的词下划一横线，并在该词下面写出修改后的词。
注意：
1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者(从第11处起)不计分。
Last month, I ( http: / / www.21cnjy.com )together with my parents，were invited to my uncle’s home in the United States. My uncle, who moved to America when I was five, has been lived there for nearly ten years. She met us in the airport. I was exciting, when I set my foot on the land of America. In the following days, we visited some place of interest and took photos in the front of the Statue of Liberty. We all enjoyed visiting the Museum of Natural History so it enriched our knowledge great. For me, this is one of the most rewarding trips which I have ever made in my life and I look forward going there again.
第二节书面表达（满分25分）
假设你是某中学高二学生李华，请你用英 语向一位美国游客介绍一下大熊猫内容提示：
1. 大熊猫的主要栖息地与食物；
2. 数量的变化；
3. 赠送给友好国家。
注意词数：100左右；
2.可适当增加细节，以使行文连贯。
参考词汇:稀有的 一scarce 外交的 一diplomatic
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案及部分解析
1-5 DABCD 6-10 CDDCB
11-15 ACCCB 16-20 EAGDB
21-25 DCBDC 26-30 ABCDB
31-35 ACDBB 36-40 DCABD
41-50 (One possible version)
41. importance 42. to have
43. the 44. that
45. regularly 46. sent
47. enjoyable 48. doing
49. had graduated 50. Although
短文改错(One possible version)
Last month, I together with my parents, were invited
was
to my uncle’s home in ( http: / / www.21cnjy.com ) the United States. My uncle, who moved to America when I was five, has been lived there for nearly ten years. She met
livi ( http: / / www.21cnjy.com )ng He
us in the airport. I was exciting, when I set my
excited
foot on the land ( http: / / www.21cnjy.com )of America. In the following days, we visited some place of interest and took photos
places
in the front of ( http: / / www.21cnjy.com )the Statue of Liberty. We all enjoyed visiting the Museum of Natural History so it enriched
because
our knowledge great. For me, this is one of the
greatly
most rewarding trips which I have ever made in
that
my life and I look forward ∧ going there again.
to
书面表达 (One possible version)
　Pandas, which live ( http: / / www.21cnjy.com ) mostly in Sichuan province, mainly live on bamboo. Pandas are one of the scarcest animals though there used to be many pandas in China long long ago. However, the number of pandas became increasingly small as the balance of nature was destroyed and the weather got warmer and warmer. Fortunately, with some measures taken by the government and the efforts from scientists and many other people, the number of pandas has increased in recent years. Additionally, presenting pandas has been considered a diplomatic way to improve the friendship between China and other countries.
阅读理解
A
　　本文向我们介绍了Carnival的一些旅游线。
1. D。细节理解题。根据第一段的 ( http: / / www.21cnjy.com )the ships feature water slides, casinos, and plenty of bars可知A、B、C三项的内容都有提到，但没有提到D项的内容，故选D。
2. A。推理判断题。根据第二段的I ( http: / / www.21cnjy.com )f you like the flash of Vegas mixed with a big dose of beach party, you’ll love Carnival’s brand of flamboyant fun.可推断喜欢沙滩派对的人会选择这条旅行线。
3. B。推理判断题。根据第三段的Ca ( http: / / www.21cnjy.com )mp Carnival, one of the best family programs on the main stream lines, makes it easy for parents and grandparents to bring their kids and then let them go.可知这个方案适合一家人。
4. C。细节理解题。根 ( http: / / www.21cnjy.com )据第四段的Heavily North America including the Caribbean and Bahamas, Alaska, Canada / New England, Mexico, Hawaii, and Bermuda, but also some cruises in Europe. One ship is based in Australia, and marketed to Australians.可知并不去格陵兰岛。
B
Lisa Milella患上了不治之症，她决定用余生去帮助需要帮助的野生动物。
5. D。细节理解题。根据第一段的 ( http: / / www.21cnjy.com )she decided to spend the rest of her life helping as many sick or injured animals around the world as she could.可知，Lisa Milella决定好好利用她的余生。
6. C。细节理解题。根 ( http: / / www.21cnjy.com )据第三段的She first flew to Norway to oversee the life-saving surgery of overweight Pingky可知，Lisa Milella是去那里监管一个重要的手术。
7. D。推理判断题。根据末段的T ( http: / / www.21cnjy.com )he amount has been exceeded and money continues to pour in on her Just Giving page.可知，这个目标进展顺利。
8. D。主旨大意题。根据全文内容可知，文章主要讲述了兽医Lisa Milella用余生去帮助野生动物的故事，故选D项。
C
　　作者认为学习急救知识很重要，并给出了几点理由。
9. C。推理判断题。根据第一段 ( http: / / www.21cnjy.com )的I immediately took my first-aid kit and ran downstairs.可推断，作者立马下去帮忙。
10. B。 词义猜测题。本文主要是讲为什么学习急救知识很重要，故选B项。
11. A。细节理解题。根据第三段 ( http: / / www.21cnjy.com )的If you have the skills, you can act whenever you’re needed.可知有急救知识的话在任何有必要的时候都可以采取行动。
12. C。细节理解题。根据文章内容，可知C选项未提到。
D
　　肥胖已经成为了一个世界性的问题，并且在接下来的十年里会变得更严重。
13. C。细节理解题。根 ( http: / / www.21cnjy.com )据第一段的According to CDC, in the US more than one-third of adults are obese today.可知，在美国三分之一以上的成年人肥胖，故选C项。
14. C。 推理判断题。根据 ( http: / / www.21cnjy.com )第二段的The McKinsey Institute found, for example, that Saudi Arabia, the United Arab Emirates, Mexico, and South Africa rounded out the top five biggest nations in the world.可知，划线部分是指肥胖不只是美国独有的问题，故选C项。
15. B。细节理解题。根据第四段的the ( http: / / www.21cnjy.com )world’s obesity epidemic is predicted to continue to spread over the next decade. ... almost half the world’s population will be overweight or obese by 2030.可知肥胖会成为一个更严重的问题。
16-20 （略）
完形填空
　　小孩睡觉晚的习惯是可以慢慢调整过来的，父母需要在他们上学之前将这个习惯调整过来。
21. D。后面讲到睡觉晚受基因、环境以及年龄的影响，故这里是指“原因”。
22. C。Mary Carskadon在对小孩的睡眠进行研究，故她会研究他们的“（睡觉）习惯”。
23. B。night owls是指睡觉“晚”的人。
24. D。这里是指他们有自己偏好的“作息表”，由下一句sleep patterns和第三段的former schedule也可推知。
25. C。这里需选一个跟late对立的词，故选C项。
26. A。根据副词besides和前文中的partly可知，睡眠习惯部分是由基因决定，此外，环境跟年龄“也”会对睡眠习惯造成影响。
27. B。后面列举了两个问题，故这里指“问”自己这些问题。
28. C。根据and cheerful可知需选C项，表示“充满精力”和高兴的时候。
29. D。根据下文中we want the boys可知，这里是指作者的“儿子们”。
30. B。该段前半部分讲述孩子们上日托班的情况，后半部分则讲述其中一个孩子开始上学，故选“starts”。
31. A。作者的孩子上学后，跟之前上日托班会不同，故作者想“放弃”先前的作息安排。
32. C。作者想放弃之前的作息安排是为了能让孩子有充足的“睡眠”。
33. D。根据后文的解释可知，这里指越早改变“越好”。
34. B。前文讲越早改变越好，这里进一步从反面讲，越晚“改变”，面临的困难就越大。
35. B。But表示转折，前后文语 ( http: / / www.21cnjy.com )义相反，前文建议越早改变越好，而后文则表示，只要坚持逐渐改变，“推迟”时间调整也没关系，故选“put off”。
36. D。这里表假设，故选if。
37. C。前面建议提早调整睡觉时间，故这里是指不要“等到”开学前最后一晚才要求改变睡觉时间。
38. A。这里是指他们开始早“起”。
39. B。孩子是在家里睡觉的，故这里指不要让现代化的“家庭”生活影响他们的睡眠。
40. D。睡觉前需要关 ( http: / / www.21cnjy.com )“灯”，这样就不影响孩子的睡眠了。关掉water（水）、machines（机器）和gas（煤气），不符合语境。故选lights。
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　　作者每周五的老人护理中心之行，让那些老人们感受到年轻人对他们的关怀。
41. importance。考查名词。根据句意，我意识到我的行为的重要性。故用名词形式。
42. to have。考查非谓语动词。根据结构invite sb to do sth，邀请某人去做某事。
43. the。考查冠词。根据结构，the same ... 故用定冠词the。
44. that。考查定语从句。先行词是不定代词，并在定语从句中作主语，故用that引导。
45. regularly。考查副词。修饰动词visit，故要用副词形式。
46. sent。考查非谓语动词。send与postcard之间是动宾关系，故用过去分词作后置定语。
47. enjoyable。考查形容词。此处用形容词作表语。
48. doing。考查非谓语动词。I与do之间是主动关系，故要用现在分词作伴随状语。
49. had grad ( http: / / www.21cnjy.com )uated。考查动词。根据句意，因为我知道她的女儿数十年前就从中学毕业了。graduate这个动作发生在know之前，故用过去完成时。
50. Although。考查连词。根据句意，尽管我不能增加这些老人的寿命，但是我可以给他们一些简单的东西。