After sunset on our last day at the farm I walked out into the desert. In this, the first pleasant moment for a walk after long hot hours, I thought I was the only thing out of doors. Suddenly I stopped. Before me a rattlesnake lay fixed, its head not yet drawn back to strike but only turned a little to watch what I would do. Many snakes will run away at the sight of a man but this rattlesnake felt no necessity to get out of any-body's way. He held his ground in calm watch-fullness waiting for me to show my intentions. My first aim was to take no notice of him; I had never killed an animal if I was not forced to kill. But I remembered that there were children, dogs and horses at the farm as well as men and women with thin clothes on; my duty was to kill the snake. I went back to the farm and returned with a stick. The rattlesnake had not moved; he lay like a wire but more quickly than I could stride he shot into a bush and set up his rattling, warning me by this that I had made an unreasonable attack and attempted to take his life and that if I insisted he would have no choice but to take mine if he could. For a moment I listened to this terrifying sound and then I struck into the bush with my stick and, chop-ping about, dragged him out of the bush with his back broken.

He struck once more at the stick but a moment later his neck was broken and he was soon dead althoughwww..com when I picked him up by the tail his mouth opened, proving that a dead snake may still bite. There was blood in his mouth and poison was dropping; it was not only a dis-gusting(令人作呕的) sight but a pitiful one too. I dropped the body into a green bush and, as I did so, I saw him in my imagination, crawling over the sands as he might have done if I had let him go.

At the sight of the author, the rattlesnake        .

A. shot into a bush

B. lay motionless but got ready to meet danger

C. drew itself up to strike

D. took no notice of his presence

The author had to kill the rattlesnake because       .

A. it stood in his way

B. it attempted to take his life

C. it presented a disgusting sight

D. its presence was a danger to the people and animals at the farm

Which of the following best describes the rattlesnake?

A. It attacked man without any reason.

B. It would not attack unless it was attacked.

C. It ran away at the sight of man.

D. It exposed itself to danger.

It is implied at the end of the passage that the author____.

A. regretted having killed the snake

B. was glad that he had killed the snake

C. felt a little sorry for the snake

D. could not help thinking about the dead snake

After sunset on our last day at the farm I walked out into the desert. In this, the first pleasant moment for a walk after long hot hours, I thought I was the only thing out of doors. Suddenly I stopped. Before me a rattlesnake lay fixed, its head not yet drawn back to strike but only turned a little to watch what I would do. Many snakes will run away at the sight of a man but this rattlesnake felt no necessity to get out of any-body's way. He held his ground in calm watch-fullness waiting for me to show my intentions. My first aim was to take no notice of him; I had never killed an animal if I was not forced to kill. But I remembered that there were children, dogs and horses at the farm as well as men and women with thin clothes on; my duty was to kill the snake. I went back to the farm and returned with a stick. The rattlesnake had not moved; he lay like a wire but more quickly than I could stride he shot into a bush and set up his rattling, warning me by this that I had made an unreasonable attack and attempted to take his life and that if I insisted he would have no choice but to take mine if he could. For a moment I listened to this terrifying sound and then I struck into the bush with my stick and, chop-ping about, dragged him out of the bush with his back broken. w.wHe struck once more at the stick but a moment later his neck was broken and he was soon dead althoughwww..com when I picked him up by the tail his mouth opened, proving that a dead snake may still bite. There was blood in his mouth and poison was dropping; it was not only a dis-gusting(令人作呕的) sight but a pitiful one too. I dropped the body into a green bush and, as I did so, I saw him in my imagination, crawling over the sands as he might have done if I had let him go.

49. At the sight of the author, the rattlesnake        .

A. shot into a bush

B. lay motionless but got ready to meet danger

C. drew itself up to strike

D. took no notice of his presence

50. The author had to kill the rattlesnake because       .

A. it stood in his way

B. it attempted to take his life

C. it presented a disgusting sight

D. its presence was a danger to the people and animals at the farm

51. Which of the following best describes the rattlesnake?

A. It attacked man without any reason.

B. It would not attack unless it was attacked.

C. It ran away at the sight of man.

D. It exposed itself to danger.

52. It is implied at the end of the passage that the author____.

A. regretted having killed the snake

B. was glad that he had killed the snake

C. felt a little sorry for the snake

D. could not help thinking about the dead snake

语篇理解

　　Suppose you are twenty. It means you have spent at least 20,000 hours in front of the TV set. From now on, it will increase 10,000 hours every tenth year. I was told that a college student might use 5,000 hours to receive a degree of bachelor（学士）and that 10,000 hours might train an engineer or a scientist, meanwhile he’d be able to master several languages skillfully.

　　Television makes your attention disconcentrated. If one meets with something interesting, it will have a continuous effect on him. Even though the most meaningless and dullest programme will also give those who are idle（无所事事的）mysterious feelings.

　　Television wears down your fighting will by giving you continuous satisfaction and wasting your time without any pain. It is re-ported that in the United States nowadays about 30 million grown-ups are half-illiterate persons, who can not properly read or write advertisement they need, they even can not understand medicine introduction.

1. The writer thought it ________ to avoid the influence（影响）from television.

[　　]

A. easy　　　B. hard　　　C. merry　　　D. unimportant

2. Using ________ hours, a university can make a student an engineer. 

[　　]

A. one thousand　　　B. five thousand

C. one million　　　 D. ten thousand

3. According to this passage, ________ makes your attention dis-concentrated.

[　　]

A. increasing number of hours

B. your being excited

C. mastering languages skillfully

D. often watching television

4. You keep interested because ________.

[　　]

A. you are idle

B. the television is of no effect

C. the programme is meaningless

D. the television affects you

5. Television wears down your fighting will. That is to say, ________.

[　　]

A. your fighting will get weaker and weaker

B. your fighting will get stronger and stronger

C. you will rise up against television

D. you will like more television programmes

After sunset on our last day at the farm I walked out into the desert. In this, the first pleasant moment for a walk after long hot hours, I thought I was the only thing out of doors. Suddenly I stopped. Before me a rattlesnake lay fixed, its head not yet drawn back to strike but only turned a little to watch what I would do. Many snakes will run away at the sight of a man but this rattlesnake felt no necessity to get out of any-body's way. He held his ground in calm watch-fullness waiting for me to show my intentions. My first aim was to take no notice of him; I had never killed an animal if I was not forced to kill. But I remembered that there were children, dogs and horses at the farm as well as men and women with thin clothes on; my duty was to kill the snake. I went back to the farm and returned with a stick. The rattlesnake had not moved; he lay like a wire but more quickly than I could stride he shot into a bush and set up his rattling, warning me by this that I had made an unreasonable attack and attempted to take his life and that if I insisted he would have no choice but to take mine if he could. For a moment I listened to this terrifying sound and then I struck into the bush with my stick and, chop-ping about, dragged him out of the bush with his back broken.
He struck once more at the stick but a moment later his neck was broken and he was soon dead althoughwww.ks5u.com when I picked him up by the tail his mouth opened, proving that a dead snake may still bite. There was blood in his mouth and poison was dropping; it was not only a dis-gusting(令人作呕的) sight but a pitiful one too. I dropped the body into a green bush and, as I did so, I saw him in my imagination, crawling over the sands as he might have done if I had let him go.

1. 1.

   At the sight of the author, the rattlesnake        .

   1. A.
      shot into a bush
   2. B.
      lay motionless but got ready to meet danger
   3. C.
      drew itself up to strike
   4. D.
      took no notice of his presence
2. 2.

   The author had to kill the rattlesnake because       .

   1. A.
      it stood in his way
   2. B.
      it attempted to take his life
   3. C.
      it presented a disgusting sight
   4. D.
      its presence was a danger to the people and animals at the farm
3. 3.

   Which of the following best describes the rattlesnake?

   1. A.
      It attacked man without any reason.
   2. B.
      It would not attack unless it was attacked.
   3. C.
      It ran away at the sight of man.
   4. D.
      It exposed itself to danger.
4. 4.

   It is implied at the end of the passage that the author____.

   1. A.
      regretted having killed the snake
   2. B.
      was glad that he had killed the snake
   3. C.
      felt a little sorry for the snake
   4. D.
      could not help thinking about the dead snake

D
Is a recently discovered hormone the reason why folks who lose weight can’t keep it off?
Like millions of other fat people, at 530 inches high, more than 300 pounds, Carnie Wilson was not just fat. After trying all sort of diets that didn’t work, she has to go to the stomach – bypass surgery (胃部迂回手术), ie, have most of her stomach sewed up, only leaving tiny room to hold several tablespoonfuls at most. Result: she simply couldn’t eat the way she used to. In three years, Wilson is one third of her former weight.
Wilson’s experience is not all that unusual, and while doctors still aren’t exactly sure what is going on, a report in last week’s Journal of Medicine offers an explanation. The loss of appetite in bypass patients may be linked to a recently discovered hormone called ghrelin. Not only that, ghrelin may turn out to be one reason we feel hungry and it’s hare for didters to keep weight off.
Nowadays, researchers are careful to stress only what they know for sure. For the three conclusions, the leading Dr. David of the University of Washington says, “I feel very solid about two of them.” The first is that ghrelin levels in the bloodstream rise significantly before meals and drop afterward. The second conclusion is that ghrelin levels are higher on average in people who have lost weight from dieting.
Dr. David is less sure of the third conclusion, that bypass patients have only a quarter as much ghrelin as most people of normal weight. After all, ghrelin is produced by cells in the stomach. Years ago, leptin, a hormone was found as an appetite suppressant (食物抑制剂). But after years of trying, it had to be given up.
What doctors suspect is that both leptin and ghrelin are part of a complex system of brain and body chemicals that govern weight and appetite. That does not mena pharmaceutical (药物的) weight control is forever out of the question. “In the next ten years, we will be able to develop new drugs to help people lose weight healthily and effectively.”
47．What can we learn about ghrelin according to the passage?
A．After meals ghrelin levels are higher in the bloodstream.
B．People who have lost weight have less ghreilin in their body.
C．Without ghrelin, people are really difficult to lose weight.
D．Ghrelin is something produced by cells in the stomach.
48．What is Dr. David not sure?
A．pharmaceutical weight control is impossible.
       B．There is less ghrelin in the bypass patients.
C．new drugs will be developed in 10 years.
D．ghrelin levels are higher in people on diet.
49．In fact, people’s weight and appetite are controlled by        
A．ghrelin and leptin                      B．hormone and medicine
C．brain and body chemicals                  D．stomach and food
50．What can we infer from the passage?
A．People with a lower ghrelin level go hungry easily.
B．Doctors managed to use leption to control the appetite.
C．Doctors are optimistic about how to lose weight healthily.
D．The loss of appetite in bypass aptient is linked to leptin