評論
打印
Q23-26
We are so used to our life on the surface of the earth that it is not easy for our minds to break free of all the ideas that we take for granted. For example, we can feel things are heavy, so we think of weight as being a fixed quality in an object. But actually, it is not fixed at all. If you could take a one-pound packet of butter four thousand miles out from the earth, it would weigh only a quarter of a pound. The reason for such a change of weight is this: all objects have a natural attraction for all other objects. This is called gravitational attraction, but this power of attraction between two objects gets weaker as they get farther apart. So the weight of an object on the surface of the earth is not the same as its weight 4000 miles out in space. What about the weight of a one-pound of butter on the surface of the moon? There won’t be attraction between the butter and the moon, but the butter will weigh only about 1/6 as much as it does on the earth. This is because the moon is so much smaller than the earth. The amount of a gravitational pull that a body produces depends on the amount of material in it. A packet of butter has a gravitational pull of its own, but it is very small in relation to the pull of something as large as the moon or the earth.
Q23: According to the speaker, what quality of an object is taken for granted by people?
Q24: How much will a pound of butter weigh if it is brought 4000 miles into space?
Q25: What is the gravitational attraction?
Q26: Why does an object weigh much less on the moon than it does on the earth?
Q27-30
M: Hellen, come and look at this.
W: Oh! Is this the new catalogue?
M: Yes, it is. I had a design by an advertising agency this year.
W: It’s beautiful. I love the colors. It’s certainly going to make everybody take notice of our products.
M: well, I think they did a good job. I’m going to get several thousand extra copies printed for the Expo. That is coming up this spring.
W: I’m sure we can use them at the Expo. But do we have enough money in the budget for them?
M: No, but I think I can get the finance office to approve our budget supplement.
W: when they see this, those certainly be impressed. Are you going to be able to get all the colors we produced?
M: Oh yes, it wouldn’t be nearly as effective without them
W: When will it be ready? Are you going to have it in time?
M: I’m going to see Mrs. Carter in the finance office this afternoon. If she says we can go over the budget, I will get the catalogue printed right away. They will be ready in a couple of days.
W: you have to mail most of those to our regular customers, won’t you?
M: we will need a lot of them for the mailing, but there will be enough left for you to give out at the Expo.
W: I hope so, because this catalogue is a real eye-catcher.
M: but don’t worry about it. I’m sure I can make Mrs. Carter see why we need a little more money for the extra copies.
W: I think anyone will be able to see what a wonderful catalogue this is.
Q27: what are the man and woman talking about?
Q28: what is the speaker’s major concern?
Q29: when will the man see Mrs. Carter in the finance office?
Q30: what is the finance office expected to do?
