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Passage 3 Increasingly, over the past ten years, people—especially young people—have become aware of the need to change their eating habits, because much of the food they eat, particularly processed food, is not good for the health. Consequently, there has been a growing interest in natural foods.Foods which do not contain chemical additives (添加剂) and which have not been affected by chemical fertilizers, widely used in farming today. (79) Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic (有机的) matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming areas. Natural foods also include animals which have been allowed to feed and move freely in healthy pastures(牧场). Compare this with what happens in the mass production of poultry: there are farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food, they .also lay eggs which lack important vitamins. There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually a non-essential food! Al though a natural alternative, such as honey, can be used to sweeten food if it is necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be addictive: the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is to provide us with energy, in the form of calories. There are no vitamins in it, no minerals and no fiber. (80) It is significant that nowadays fiber is considered to be an important part of a healthy diet. In white bread, for example, the fiber has been removed．But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantities of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modem experts on "healthy eating". The best rifle for this passage is ________.
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请编制程序PROG1.ASM，其功能是；从SOURCE开始存放的21个8位有符号数(补码)，相邻数的差距不超过-8～7，可采用差分压缩，其方法如下：第一个数据不变，其后数据取与前一数据之差值并用4位二进制补码表示，两个差值拼成一个字节，前一个差值放在高4位，后一个差值放在低4位。 例如： 原数据为：X[n]: 23H, 27H, 2AH, 29H, 22H... 压缩后为：Y[n]：23H, 43H, F9H... 部分程序已给出，其中原始数据由过程LOAD从文件INPUT1.DAT中读入SOURCE开始的内存单元中。运算结果要求从RESULT开始存放，由过程SAVE保存到文件OUTPUT1.DAT中。 填空BEGIN和END之间已给出的一段源程序使其完整(空白己用横线标出，每行空白一般只需一条指令，但采用功能相当的多条指令亦可)，或删除BEGIN和END之间原有的代码并自行编程来完成要求的功能。 对程序必须进行汇编，并与IO.OBJ链接产生PROG1.EXE执行文件，最终运行程序产生结果(无结果或结果不正确者均不得分)。调试中若发现整个程序中存在错误之处，请加以修改。 试题程序： EXTRN LOAD: FAR, SAVE: FAR N EQU 20 DSEG SEGMENT L DW SOURCE DW N DUP() RESULT DW N DUP(0) NAME0 DB ’INPUT1. DAT’, 0 NAME1 DB ’OUTPUT1. DAT’, 0 DSEG ENDS SSEG SEGMENT STACK DB 128 DUP() SSEG ENDS CSEG SEGMENT ASSUME CS: CSEG, DS: DSEG, SS: SSEG START PROC FAR PUSH DS XOR AX, AX PUSH AX MOV AX, DSEG MOV DS, AX LEA DX,L ; 数据区起始地址 LEA SI,NAME0 ; 输入文件名首址送SI MOV CX,2+N ; 输入字节数送CX CALL LOAD ; 从INPUT1.DAT中读取数据 ;****BEGIN**** LEA SI,SOURCE LEA DI,RESULT CLD MOVSB ;Y[0]=X[0] XOR BX, BX ; FLAG=0 MOV DX,N*2 ; 计数 ZTE: LODSB SUB (1) ; X [n]-X [n-1] (2) ; FLAG=NOT FLAG J (3) SWIM MOV 4, CL MOV AH, AL JMP NEXT SWIM: (4) OR AL, AH STOSB NEXT: (5) JNE ZTE ; ****END**** LEA DX, RESULT ; 结果数据区首址送DX LEA SI, NAME1 ; 结果文件名首址送SI MOV CX, N ; 结果字节数送CX CALL SAVE ; 保存结果到文件OUTPUT1.DAT RET START ENDP CSEG ENDS END START
It was a beautiful summer day and I was taking a walk in the downtown area of Madrid. When I turned a street (56) I heard the voice of a lovely Spanish singer (57) from a nearby cafe. The music (58) me, so I went to the cafe to hear it (59) I sat down at a table near the door. The waiter came over, and I (60) a glass of wine. While (61) my wine, I listened to the soft music．The (62) was a young lady, a little too fat, but (63) pretty. A black young man was playing the piano. The waiter returned (64) the glass of wine and put it on the (65) . I started drinking the wine slowly and (66) the other people in the cafe. They were ail men (67) women seldom go into the cafes in Spain. There were three men (68) at a table near mine. I could (69) by their accents that one of them was an American, one an Englishman and the third man a (70) . The waiter served each of the three men a glass of beer. By chance, each glass had a (71) in it. The American picked up his glass, noticed the fly and poured the beer and the fly was thrown onto the floor. The English man looked into his glass, noticed the fly and (72) a spoon, with which he took the fly out of the beer, and drank the (73) of it. The stranger noticed the fly in the beer, (74) . He picked it up with his fingers, squeezed it carefully in order to save every drop of beer, then drank the beer (75) .
Passage 3 Increasingly, over the past ten years, people—especially young people—have become aware of the need to change their eating habits, because much of the food they eat, particularly processed food, is not good for the health. Consequently, there has been a growing interest in natural foods.Foods which do not contain chemical additives (添加剂) and which have not been affected by chemical fertilizers, widely used in farming today. (79) Natural foods, for example, are vegetables, fruit and grain which have been grown in soil that is rich in organic (有机的) matter. In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fertilizers, the main purpose of which is to increase the amount—but not the quality—of foods grown in commercial farming areas. Natural foods also include animals which have been allowed to feed and move freely in healthy pastures(牧场). Compare this with what happens in the mass production of poultry: there are farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food, they .also lay eggs which lack important vitamins. There are other aspects of healthy eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually a non-essential food! Al though a natural alternative, such as honey, can be used to sweeten food if it is necessary, we can in fact do without it. It is not that sugar is harmful in itself. But it does seem to be addictive: the quantity we use has grown steadily over the last two centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is to provide us with energy, in the form of calories. There are no vitamins in it, no minerals and no fiber. (80) It is significant that nowadays fiber is considered to be an important part of a healthy diet. In white bread, for example, the fiber has been removed．But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national diet contains large quantities of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modem experts on "healthy eating". People have become more interested in natural foods because ________.
Passage 1 In sport the sexes are separate. (76) Women and men do not run or swim in the same races. Women are less strong than men. That at least is what people say. Women arc called" the weaker sex" ,or, if men want to please them, "the fair sex". But boys and girls are taught together at schools and universities. There are women who are famous Prime Ministers, scientists and writers. And women live longer than men. A European woman can expect to live until the age of 74, a man only until he is 68．Are women’s bodies really weaker The fastest men can run a mile in 4 minutes. The best women need 4.5 minutes. Women’s speeds are always slower than men’s, but some facts are surprising. Some of the fastest women swimmers today are teenage girls. One of them swam 400 metres in 4 minutes 21.2 seconds when she was only 16．The first "Tarzan" in films was an Olympic swimmer, Johnny Weissmuller. His fastest 400 metres was 4 minutes 59.1 seconds, which is 37.9 seconds slower than a girl 50 years later! This does not mean that women are catching men up. Conditions are very different now, and sport is much more serious. It is so serious that some women athletes are given hormone(荷尔蒙) injections. At the Olympics a doctor has to check whether the women athletes are really women or not. It seems sad that sport has such problem. Life can be very complicated when there are two separate sexes! In this passage the author implies that ________.
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