“Yes, I'll be ready at nine in the morning. Goodbye, dear, and thanks again. ”It had not been an easy telephone call for Mrs. Robson to make．Her daughter had been very kind，of course，and had immediately agreed to pick her up and drive her to the station，but Mrs. Robson hated to admit that she needed help．Since her husband had died ten years before，she had prided herself on her independence．She had continued to live in their little house, alone．
On the evening, however，she was standing at her living-room window，staring out at the SOLD notice in the small front garden . Her feelings were mixed．Of course，she was sad at the thought of leaving the house，as it was full of many memories．But at the same time she was looking forward to spending her last years near the sea，back in the little seaside town where she had been born. With the money from the sale of the house，she had bought a little flat there. She turned from the living room window，and looked mindedly at the walls. There was a small fish tank，with two goldfish in it. When asked why，her husband used to say，“It’s nice to have something alive in the room．’’Since he had passed away，she had always kept some goldfish，had always had “something alive in the room”．
The next morning，as her train was pulling out of the station，Mrs. Robson called to her daughter．“Kate，you won’t forget to collect the goldfish，will you? The children will love them. It’s…”，
“I know.” Kate interrupted gently. “It s nice to have something alive in the room.”
53. According to the passage，we know that Mrs. Robson____
A. was tired of living alone
B. was not liked by her daughter
C. did not like asking people for help
D. did not want to be visited by her daughter
54. Mrs. Robson was going to ．
A. be in hospital B. 1ive with her daughter
C. travel abroad alone D. move to her hometown
55. The feelings of Mrs. Robson on her last night in the house were
A. sad and hopeful B. regretful and excited
C. sad and regretful D. excited and hopeful
56. From the last two paragraphs，we can know that Mrs. Robson ．
A．enjoyed keeping pets at home
B．missed her husband very much
C．had the same hobby with her husband
D．was worried about her daughter’s bad memory
A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin.
Amphibians, animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo.
Now the same oxygen sensors found in frog skins and in the lungs of mammals (哺乳动物) have unexpectedly been discovered in the skin of mice.
“No one had ever looked,” explained Randall Johnson, a biologist researcher.
Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.
“We have no reason to think that they are not in the skin of people too,” Johnson said. These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1a genetically removed from their skin failed to produce this hormone (荷尔蒙) even after hours of such low oxygen.
These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (贫血症) without injecting drugs, which make up a multibillion-dollar market, Johnson said.
Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained.
The scientists detailed their findings in the April 18 issue of the journal Cell.
49. Which of the following statements is TRUE according to the passage?
A. Johnson believes that Oxygen sensors also exist in human skin.
B. People have to surf the Internet to read detailed findings.
C. It has been proved that these findings help treat lung diseases.
D. It has long been expected oxygen sensors exist in mice’s skin.
50. One of the functions of the molecules mentioned above is _______.
A. carrying oxygen around the body B. improving athletes’ performance
C. detecting oxygen D. increasing level of oxygen
51. What is Johnson’s attitude to the application of the findings to the athletes’ training?
A. Negative B. Doubting C. Positive D. Hesitating
52. The best title of the passage may be _______.
A. Great Findings Benefits Athletes A Lot
B. Frogs And Mice Are Distant Relatives
C. First Known Animal Breathes Through Skin
D. Humans Might Sense Oxygen Through Skin
第三节完形填空(共20小题；每小题1.5分，满分30分)
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Nick was not the kind of boy I had expected to spend my summer with. I was hoping to have a 21 the summer before my busy senior year, but my mother asked me to do her a 22 . One of her colleagues needed a full-time 23 . “You planned to volunteer at the local hospital, why not volunteer to 24 Nick instead?” Then she told me that this six-year-old boy was not a 25 child.
Nick was a lovely little boy who suffered from many disorders. Normal day-care centers would not 26 him. As a baby, he had serious ear infections which left him with equilibrium (平衡) problems. He couldn’t 27 or run properly. I was hesitating (犹豫) 28 I was to take the job when my mother 29 , “Don’t you want to be a nurse in the future? I doubt if you even have the 30 .”
Then I told her I was 31 for the job.
The day started at 7:00 a.m. Nick was my wake-up call! With so much energy and very little 32 , he was quite a mix.
At the park, when he saw all the other children play on the jungle gym and swings (秋千)， the boy’s face 33 up — How he wished he belonged to the group of his age! You would think it would be 34 to get a child to go down a slide (滑梯). Believe me, it wasn’t ! It took time, a lot of time. But with patience and support, Nick took one step up the slide each day. We worked together to face his 35 and gradually he got closer to taking the slide of his life.
Halfway through the summer, he 36 it to the top of the slide. With my arms 37 him tightly, we flew down the slide! I waited for his reaction. After realizing that he was safe and sound, he gave me a big 38 and asked, “May I go down again, alone?”
I had never been happier in my life when I saw this little child climb the ladder and enjoy what other children 39 for granted.
This 40 child taught me that being a nurse means respect, kindness and patience.
21. A. grade B. course C. project D. relaxation
22. A. service B. favour C. business D. trade
23. A. nurse B. waitress C. guard D. guide
24. A. protect B. defend C. attend D. comfort
25. A. normal B. naughty C. clever D. happy
26. A. admit B. receive C. accept D. adopt
27. A. speak B. play C. stand D. walk
28. A. if B. what C. why D. where
29. A. suggested B. argued C. challenged D. commented
30. A. energy B. courage C. faith D. time
31. A. eager B. sorry C. grateful D. ready
32. A. awareness B. balance C. knowledge D. control
33. A. delighted B. cheered C. lit D. shut
34. A. difficult B. simple C. interesting D. terrible
35. A. fears B. worries C. chances D. situations
36. A. climbed B. got C. managed D. made
37. A. taking B. holding C. bringing D. greeting
38. A. kiss B. clap C. welcome D. surprise
39. A. play B. do C. take D. enjoy
40. A. miserable B. smart C. brave D. special
---- Have you finished your report?
--- Yes．I _____ it within 10 minutes．
|
A．finish |
B．have finished |
C．finished |
D．will finish |
Brian talks to me like a child，_____really annoys me．
|
A．which |
B．that |
C．when |
D．whom |
. Explosion happened in Wisconsin early Monday，_______ two visitors．
|
A．killed |
B．killing |
C．to kill |
D．having killed |
