There was great excitement on the planet of Venus(金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.

The satellite was directed into an area known as Manhattan (named after the great Venusian astronomer Prof. Manhattan, who first discovered it with his telescope 20000 light years ago).

Because of excellent weather conditions and extremely strong signals, Venusian scientists were able to get valuable information as to feasibility (可行性) of a manned flying saucer (碟) landing on Earth. A press conference was held at the Venus Institute of Technology.

“We have come to the conclusion, based on last week’s satellite landing,” Prof. Zog said, “that there is no life on Earth.”

“How do you know this?” the science reporter of the Venus Evening Star asked.

“For one thing, Earth’s surface in the area of Manhattan is made up of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe this air and survive.”

 “What does this mean as far as our flying saucer program is concerned?”

“We shall have to take our own oxygen with us, which means a much heavier flying saucer than originally planned.”

“Are there any other dangers that you discovered in your studies?”

“Take a look at this photo. You see this dark black cloud hovering(盘旋) over the surface of Earth? We don’t know what it is made of, but it could give us a lot of trouble and we shall have further tests before we send a Venus Being there.”

“Over here you will notice what seems to be a river, but the satellite findings indicates it is polluted and the water is unfit to drink. This means we shall have to carry our own water, which will add even greater weight to the saucer.”

“If all you say is true, won’t this set back the flying saucer program several years?”

“Yes, but we shall continue as soon as the Grubstart gives us the added funds.” Prof. Zog replied.

43.During the week of great excitement the Venusian scientists succeeded in getting important information as to ____.

   A.the feasibility of landing a satellite on Earth

   B.the possibility of making a first-rate flying saucer

   C.the feasibility of sending a Venus Being to Earth

   D.the possibility of directing a flying saucer into Manhattan

44.According to Prof. Zog, the Venusians will have to take their own oxygen with them when they carry out their flying saucer program because ____.

   A.they need it in their way to the planet of Earth

   B.the Earth’s atmosphere is filled with deadly gases

   C.there is a low level of oxygen for Venusians

   D.there is no air on the planet of Earth

45.The “dark black cloud” on the photo refers to ____.

   A.the polluted air hovering over the surface of Earth

   B.the mass of tiny drops of water floating above Earth

   C.the mass of small things moving through the air

   D.the dark clouds gathering before a storm breaks

46.The author wishes to call our attention to the fact that ____.

   A.that modern man has polluted his environment to such an extend that he might destroy himself if he went on like this

   B.that there is a point in spending billions to land a flying saucer on Earth

   C.that pollution has become so serous a problem on Earth that even Venusians find life there unbearable.

   D.that it is difficult if not altogether impossible, to land a manned flying saucer on Earth

 “You must be mad!” said my friends. “Giving up your job now, when there isn't much chance of finding another one, ever!”

But I had already come to my lonely decision. To wake up in the morning with a sense of fear, to force a hasty breakfast down an unwilling throat and then to set off for work with pounding heart and frozen face had become habitual, and I had turned to tranquilizers(镇定剂) to help me along.

It hadn't always been as bad as this. Ten years before I had managed quite well.

I, in common with most other teachers, am rather self??critical, and I knew now I was no longer “managing”.My classes were noisy, the children were not learning very much, and my attempts to cope with changing teaching methods produced very little effect. At one time my very presence in the doorway would be enough to ensure a partial silence. Now they give a vague(含糊的) “Hello, Miss”, and carry on. I had run out of enjoyment and enthusiasm. It was time to stop.

Was it all my own failure? In fairness to myself, I don't think it was. I had plenty of ideas, I loved my subject, and I liked children.

I had been idealistic. But the reality I faced was bored children, over??stimulated(刺激)by video??watching the night before and tired out by a late bedtime. They were given the wrong food at the wrong time, who came without breakfast to school and then stuffed themselves with gum and chocolates bought on the way; who were “high” with hunger in class and talked restlessly as the cooking smell from the school kitchen came drifting (漂) to all floors.

I had been trying to create the basic conditions in which teaching becomes possible, but I had failed, and no longer had the stomach for the job.

64.The reason why the writer decided to give up her job was probably that    .

A.teaching children wasn't challenging

B.she took no pride in her work

C.teaching had become too much for her

D.she disliked the new teaching method

65.“My very presence in the doorway would be enough to ensure a partial silence” means“    ”.

A.I'd very well make some students stop talking simply by standing in the doorway

B.when I came to the doorway, the class would immediately quiet down

C.all the students would become silent on my turning up in the doorway

D.my appearance in the doorway could at least comfort the class

66.The following are all reasons that children couldn't concentrate in class EXCEPT    .

A.they were tired out because they went to bed too late

B.they were burdened with too much homework

C.they were not properly fed by their parents

D.they were over excited by video??watching the night before

67.We can infer from the passage that the writer    .

A.had no love for children at all

B.never truly enjoyed teaching

C.found it difficult to give up her job

D.felt extremely nervous about each coming day

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