A student spends all of her income on pizza and books. When pizzas cost $3 each and books cost $10 each, she consumed 30 pizzas and 3 books per month. The price of pizzas fell to $2.90 each while the

听力原文：Narrator Listen to a conversation between a student and her tutor. Amy Morning, Dr. Carter. Im sorry to disturb you. But may I speak to you about my course? Dr. Carter Yes, come in, Amy. But anyway, I havent got long, because I have to give a lecture in half an hour. Amy Alright. I would just like to finish talking about the problem I have with you. I think it wont take a long time. Dr. Carter Sure. Whats the problem? Sit down. Amy Well, Im having problems with one of my subjects economics. Im not doing very well and Im a bit concerned about it. Dr. Carter You havent been doing too well, thats true. I think you failed your last assignment, didnt you? Amy Ive failed the last one and the one before and I only just scraped through the first one. The problem is that Im not very interested in economics. I think thats why I dont really try and then... Dr. Carter So what are you saying, Amy? Amy I really feel that I should drop economics and pick up Spanish again. Dr. Carter And have you ever dealt with Spanish? Amy Yeah, I did first year Spanish last year, and I got really good marks. Dr. Carter So here, I really dont understand why you took up economics this year then. Amy Well, everyone told me that economics was more important than a language and I felt itd be really useful for further study. Dr. Carter It seems to not be your interest. And are you studying Spanish by yourself? Amy Well, at first I thought I could keep up my Spanish on my own with a private teacher. The problem is that I just dont seem to have time to do everything. Dr. Carter Surely Spanish isnt too time consuming. Amy No, it wouldnt be except that I urn, Ive got a part-time job in a restaurant three nights a week...I cant give that up because I really need the money. I just urn, cant fit it all in. Dr. Carter Oh, you must have spent a lot on that. Do you think such a part-time job puts too much pressure on your curricular performance? Amy To some extent, it does definitely. Dr. Carter We could offer you extra help with the economics if you are willing to stick to it. Amy No, really Dr. Carter, I dont think it would be any good. I want to change. Dr. Carter Yes, I can see that your mind is made up. Well, I have no objection, especially as you have a background in Spanish, but youll have to go and see Dr. Brown in the Spanish Department and see whether hell accept you or not. Amy Ok, Ill go and see him first. Would you be able to have a word with him about it as well, Dr. Carter? Dr. Carter You can tell him to phone me for a reference if he wants to. I must get to my lecture now. Let me know how you get on. Amy Thanks, Dr. Carter. I will. Now get ready to answer the questions. You may use your notes to help you answer. 1. Why did Amy go to see Dr. Carter? 2. How many assignments has Amy failed? 3. Why did Amy take up economics? 4. Amy is not studying Spanish at present. What does she lack? 5. What does Dr. Carter promise to help Amy?Narrator Listen to a conversation between a student and her tutor. Now get ready to answer the questions. You may use your notes to help you answer.

Why did Amy go to see Dr. Carter?

A．She was unwell.

B．She was worried.

C．She was stressed.

D．She was depressed.

When a student said "Yesterday I goed to see a friend of mine"， which of the followingways for correcting errors is Not encouraged?

A.Oh， yes. I see you went to see a friend of yours.

B.You goed to see your friend?

C.No， not goed. You should say went.

D.Say it again， please.

One evening, when Bagehot was at university, a student who lived next door to him fell badly ill. An ambulance was called, but its route was blocked by a pile of clothes and a gaggle of drunk, naked young men. They were members of a drinking society (roughly analogous to American fraternities). The boozy nudity at precisely this spot, they explained, refusing to budge, was an awfully important initiation rite.

This incident came to mind last month when something not dissimilar happened near Wigan, in northern England. A group of youths obstructed an ambulance and harassed the paramedics in it, whose patient died. That little act of thuggery was scarcely noticed amid the ongoing run of murders by British youngsters, by knife and sometimes gun. Most of the victims have been young too: 18 people aged 18 or under have been killed in London this year, stabbed on the street or shot in nightclubs—not many by Los Angeles standards, perhaps, but troubling by Britain's. Not all the victims have been teenagers, a father in Warrington was beaten to death outside his home last week after remonstrating with vandals. "No street is safe any more from marauding hooligans," lamented the Sun, which recently fulminated about the yobs who urinated in drinking-water supplies delivered to flood-stricken western England.

Are British delinquents really more depraved, and more numerous, than they used to be, or than other countries' are? That university prank—as well as confirming that the posh and plebeian classes can be oddly alike—suggests that there is little new under the sun, even if the Sun says there is. Hysteria over degenerate children was even more intense in 1993, when two ten-year-olds murdered a toddler in Liverpool. From punks and skinheads, through the gangs that prowled the post-war London rubble and beyond, "yoof" has always been a concern, and always getting worse. "I would there were no age between sixteen and three-and-twenty," says a Shakespearean character, "for there is nothing in the between but getting wenches with child, wronging the ancientry, stealing, fighting." It is true that more teenage British wenches are got with child than other European ones, and that British teenagers are unusually prone to taking drugs, fighting, venereal disease and boozing: a senior policeman called this week for tighter rules on alcohol. But few who drink or smoke pot graduate to knife crime. Many do none of these things; most are better-off and better-educated than ever.

Not much has changed—and don't generalise: those are the relaxed arguments of some sociologists, criminologists and other yoof-ologists. But an old problem still counts as a problem: that Britons have always worried about yoof doesn't mean they are wrong to do so now. And conversations with teachers, youth workers and yoof itself suggest that in some ways the plight and behaviour of teenagers have indeed deteriorated.

Hard evidence is difficult to come by, but more British teenagers seem to be carrying knives, intended to protect but liable to endanger. More assaults than previously seem to be provoked by imagined "disrespect"; afterwards, a teenage omerta often confounds the police. Murder is still overwhelmingly a male offence, but girls seem to be committing more violent crime too. Urban gangs are pursuing rivalries and vendettas against groups from other neighbourhoods, separated by boundaries that are invisible to oblivious adults. "Happy-slapping", whereby assailants film their attacks for their later amusement, has been an unanticipated consequence of putting cameras on mobile phones.

As in America, the worst problems are often concentrated in specific communities. But they have wider costs, because adults can't tell the sociopaths from the bored loiterers. British adults, research suggests, are less likely to intervene than other Europeans if they see youngsters up to no good, with the result that parks and squares are

In general, the amount that a student spends for housing should be held to one-fifth the total ________ for living expenses.

A) acceptable

B) available

C) advisable

D) applicable