Although men and women have been growing crops for thousands of years, they have not always had enough to eat. Even today, many people in the world go hungry, and even die of hunger. If we are to grow enough for everybody, we have to grow more crops and better crops.

Plants need the right food in order to grow. In particular, they need three chemical substances (物质) in the soil: nitrogen (氮), phosphorus (磷) and potassium (钾). They also need smaller amounts of other chemical substances like calcium. If there is too little of any of these substances in the soil, plants can’t grow well.

When a plant grows, it takes up these basic substances from the soil and builds them into itself. If we remove the plant from the soil and use it for food, we are taking some of these substances away, and this means that future plants will find less of them in the soil. In time, the soil would become too poor for plants to grow in it at all.

To prevent this  we must put basic substances back. One way of doing this is putting manure (肥料) on the soil. This contains the remains of plants that have been eaten, and, if we add it to the soil, we are returning some of the basic substances. In Europe and in Japan, manure from animals has for long been used in this way. Unfortunately much of the animal waste in India is used as fuel because there is not enough wood to burn. This means there is less manure for the crops.

Even when we use manure, we can not put back into the soil more of the basic substances than have been taken out. Often the soil does not have enough of them in the first place, and so we must provide extra supplies. We can use chemical fertilizers (化肥). Experiments in India have shown that, if we use a fertilizer containing a mixture of nitrogen and phosphorus, we get half as much rice again from the crops on any one piece of land.

72. According to the passage, how many methods are introduced to improve the soil?

A. One.         B. Two.          C. Three.          D. Four.

73. The underlined word “this” (in Paragraph 4) refers to the fact that ____________.

  A. the soil would become too poor for plants to grow in it at all

  B. we are taking some substances away from the soil

  C. the plant takes up these essential substances from the soil

  D. even today many people in the world go hungry

74. To make sure that the soil has enough basic substances, people can _____________.

    A. remove plants from the soil              

B. provide the soil with extra supplies

   C. plant as many plants as possible          

D. stop planting in the soil

75. The passage is mainly about _____________.

    A. why more food is needed

B. how to grow better crops

   C. the fact that people have not always enough to eat

   D. the essential substances that plants need

Although men and women have been growing crops for thousands of years, they have not always had enough to eat. Even today, many people in the world go hungry, and even die of hunger. If we are to grow enough for everybody, we have to grow more crops and better crops.

Plants need the right food in order to grow. In particular, they need three chemical substances (物质) in the soil: nitrogen (氮), phosphorus (磷) and potassium (钾). They also need smaller amounts of other chemical substances like calcium. If there is too little of any of these substances in the soil, plants can’t grow well.

When a plant grows, it takes up these basic substances from the soil and builds them into itself. If we remove the plant from the soil and use it for food, we are taking some of these substances away, and this means that future plants will find less of them in the soil. In time, the soil would become too poor for plants to grow in it at all.

To prevent this we must put basic substances back. One way of doing this is putting manure (肥料) on the soil. This contains the remains of plants that have been eaten, and, if we add it to the soil, we are returning some of the basic substances. In Europe and in Japan, manure from animals has for long been used in this way. Unfortunately much of the animal waste in India is used as fuel because there is not enough wood to burn. This means there is less manure for the crops.

Even when we use manure, we can not put back into the soil more of the basic substances than have been taken out. Often the soil does not have enough of them in the first place, and so we must provide extra supplies. We can use chemical fertilizers (化肥). Experiments in India have shown that, if we use a fertilizer containing a mixture of nitrogen and phosphorus, we get half as much rice again from the crops on any one piece of land.

46. According to the passage, how many methods are introduced to improve the soil?

A. One.　　　　 B. Two.　　　　 C. Three.　　　　 D. Four.

47. The underlined word “this” (in Paragraph 4) refers to the fact that ____________.

A. the soil would become too poor for plants to grow in it at all

B. we are taking some substances away from the soil

C. the plant takes up these essential substances from the soil

D. even today many people in the world go hungry

49. To make sure that the soil has enough basic substances, people can _____________.

　 A. remove plants from the soil　 　　　　　

B. provide the soil with extra supplies

C. plant as many plants as possible　　　 　

D. stop planting in the soil

50. The passage is mainly about _____________.

　 A. why more food is needed

B. how to grow better crops

C. the fact that people have not always enough to eat

D. the essential substances that plants need

In the competition of Olympic weightlifting，the athletes try to lift the maximum (最大的) weight they can. There are special conditions they have to meet in order to compete：body weight，height and strength.
The Olympic weightlifting mainly tests the limit of explosive strength (爆发力)．There are not many lifters who really like Olympic weightlifting and the explanation is very simple：they are short of explosive strength.
The weights used for Olympic weightlifting are added in kilograms. The order by which the athletes enter the competition is not general，but it is set depending on the event. Usually the athlete with the lowest weight begins. If he/she is not successful，he/she can try later. There is a maximum of three lifts allowed for every competition.
For many years Olympic weightlifting was only for men. However，now women also take part in Olympic weightlifting. It was at the beginning of the 21st century that women’s competitions entered an organized professional environment. For women，Olympic weightlifting is more difficult because of their different body structure. However，strength training techniques (技术) are widely and successfully used by women，too.
Lots of the athletes who’ve ended up in Olympic weightlifting competitions have started with strength training only to improve their muscle condition and their body power. However，the demarcation line (界线) is not still very clear between power training and Olympic weightlifting. This is how so many lifters have got into Olympic weightlifting competition，even if their purpose was different at the beginning.
【小题1】In the competition of Olympic weightlifting，athletes need to be all of the following EXCEPT________.

Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B,C and D. Choose the one that fits best according to the information given in the passage.
A
Food
British people like good food, and more than half of them go to a restaurant every month. Fast food is also very popular---30% of all adults have a hamburger every three months, but 46% have fish and chips!
Sports
British people don’t do a lot of sports. Only 17% of people go swimming every week, about 9% go cycling and 8% play golf--- and only 6% of people play football (but 32% go to watch it).
Cinema and TV
Films are very popular in Britain, and about 60% of the young people go to the cinema every month. At home, men watch TV for about three hours every day ---30 minutes more than women.
Holidays
British people love going on holiday, and have 56 holidays every year. Most of these holidays aren’t spent in the UK---27% are in Spain. 10% are in the USA, and 9% are in France. Maybe this is because the weather in Britain isn’t very good!
Presents
British people don’t send others expensive presents like other Europeans. They often send chocolates, wine and flowers of good quality.
【小题1】 Which food could be more popular among British adults, a hamburger or fish and chips?

Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage.

A

It is very important for people to drink water in our everyday life. Many people believe they are supposed to drink eight glasses of water a day, or about two liters. Why? Because that is what they have been told all their life. But a recent report offers some different advice. Experts say people should obey their bodies; they should drink as much water as they feel like drinking. The report says most healthy people meet their daily needs for liquid by letting thirst be their guide. The report is from the Institute of Medicine, part of the National Academies. The report contains some general suggestions. The experts say women should get about 2.7 liters of water daily. Men should get about 3.7 liters. But wait——in each case, that is more than eight glasses.

There is one important difference. The report does not tell people how many glasses of water to drink. In fact, the experts say it may be impossible to know how many glasses are needed to meet these guidelines. This is because the daily water requirement can include the water content in foods. People do not get water only by forcing themselves to drink a set number of glasses per day. People also drink fruit juices and sodas and milk. They drink coffee and tea. These all contain water. Yet some also contain caffeine. This causes the body to expel(排出)more water. But the writers of the report say this does not mean the body loses too much water.

As you might expect, the Institute of Medicine says people need to drink more water when they are physically active. The same is true of those who live in hot climates. Depending on heat and activity, people could need two times as much water as others do. All this, however, does not answer one question. No one seems sure why people have the idea that good health requires eight glasses of water daily.

It may have started with a misunderstanding. In 1945, the National Academy of Sciences published some guidelines. Its Food and Nutrition Board(营养膳食) said a good amount of water for most adults was 2.5 liters daily. This was based on an average of one milliliter(毫升)for each calorie of food eaten. But that was only part of what the board said. It also said that most of this amount is contained in prepared foods.

56. In experts’ opinion, every day a person should drink ____.

   A. as much water as he can                                            B. more than eight glasses of water

   C. according to actual need for his body                     D. when he comes in sight of water

57. What is mainly described in the second paragraph?        

   A. People know about the daily water requirement.        

B. People need water instead of all kinds of drink.

   C. People get daily water not only from drinking.    

D. People drink all kinds of drink every day.

58. Who might drink less water according to the third paragraph?

59. The writer mentions the guidelines in 1945 to ____.

   A. meet with good results                                                        B. follow the advice

   C. give up his idea                                                              D. correct the conclusion

60. The main purpose of writing the texts is to _______.

   A. make a good suggestion of drinking daily           B. make clear the requirements to drink daily

   C. tell the importance of drinking water daily           D. figure out a good amount of water daily