1 .     1    People use money to buy food, furniture, books, bicycles and hundreds of other things they need or want. When they work, they usually get paid in money.

Most of the money today is made of metal or paper.    2    One of the first kinds of money was shells.

Shells were not the only things used as money. In China, cloth and knives were used. In the Philippine Islands, rice was used as money for a long time. Elephant tusks, monkey tails and salt were used as money in parts of Africa.

The first metal coins were made in China. They were round and had a square hole in the centre.    3    

Different countries have used different metals and designs for their money.    4    Sweden and Russia used copper (铜) to make their money. Later some countries began to make coins of gold and silver.

But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money.    5    The first paper money looked more like a note from one person to another than the paper money used today.

Money has had an interesting history from the days of shell money until today.

A．The first coins in England were made of tin (锡).

B．But people used to use all kinds of things as money.

C．No one knows for certain when people began to use money.

D．People strung (串连) them together and carried them from place to place.

E．Money, as we know, is all made of paper.

F．They began to use paper money.

G．Today anyone will accept money in exchange for goods and services.

2 . Swimming, cycling, jogging, skiing, dancing, walking or any of dozens of other activities can help your heart.    1     Whether it is a structured exercise program or just part of your daily routine, all exercise adds up to having a healthier heart. Here are some tips for exercise success.

●Choose activities that are fun and add variety. Develop several activities that you can enjoy.    2    

●Wear comfortable, properly fitted shoes and comfortable, loose-fitting clothing appropriate for the weather and the activity.

●Find a convenient time and place to do activities.    3     If you miss an exercise opportunity, work activity into your day another way.

●Use music to keep yourself entertained.

●    4     Decide what kind of support you need. Do you want them to remind you to exercise? Exercise with you regularly or occasionally? Be understanding when you get up early to exercise? Spend time with the children while you exercise? Try not to ask you to change your exercise routine? Share your activity time with others. Ask your family members, friends or co-workers for help.

●Don’t overdo it, especially at first. You can slowly increase the time and intensity (强度) of your activities as you become more fit.    5    

●Keep a record of your activities. Reward yourself at times. Nothing will inspire you more than success!

A．Try to make it a habit, but be flexible.

B．They all cause you to feel warm and breathe heavily without being out of breath.

C．Be an active role model for your children.

D．That way, exercise will never seem boring.

E．If you are overweight or have a high risk of heart disease, see your doctor for medical advice before exercising.

F．Surround yourself with supportive people.

G．Gradually, work up to exercising on most days of the week for 30-60 minutes.

3 . 根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多余选项。UrbanizationUntil relatively recently, the vast majority of human being lived and died without ever seeing a city. The first city was probably founded no more than 5,500 years ago.    1    In fact, nearly everyone lived on farms or in tiny rural (乡村的) villages. It was not until the 20th century that Great Britain became the first urban society in history—a society in which the majority of people live in cities and do not farm for a living.Britain was only the beginning.    2    The process of urbanization—the migration (迁徙) of people from the countryside to the city—was the result of modernization, which has rapidly transformed how people live and where they live.In 1900, fewer than 40% of Americans lived in urban areas. Today, over 82% of Americans live in cities. Only about 2% live on farms.    3    Large cities were impossible until agriculture became industrialized. Even in advanced agricultural societies, it took about ninety­five people on farms to feed five people in cities.    4    Until modern times, those living in cities were mainly the ruling elite (精英) and the servants, laborers and professionals who served them. Cities survived by taxing farmers and were limited in size by the amount of surplus（过剩）food that the rural population produced and by the ability to move this surplus from farm to city.Over the past two centuries, the Industrial Revolution has broken this balance between the city and the country.    5    Today, instead of needing ninety­five farmers to feed five city people, one American farmer is able to feed more than a hundred non­farmers.

A．That kept cities very small.

B．The rest live in small towns.

C．The effects of urban living on people should be considered.

D．Soon many other industrial nations became urban societies.

E．But even 200 years ago, only a few people could live in cities.

F．Modernization drew people to the cities and made farmers more productive.

G．Modern cities have destroyed social relations and the health of human beings.