现代大学英语听力3-UNIT-4原文及答案
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1 / 5 Unit 4
Task 1
[答案]
A.
1>They are farms that grow vegetables for city people to eat fresh.
2> It’s a farm that grow plants and flowers to sell.
3> They protect the plants from the cold in the winter but let them get plenty of light,
so the plants can be grown all through the year.
B.
1> canned, frozen
2> flowers, garden plants, home gardens, yards, window boxes
3>buildings, furniture, firewood
[原文]
Grain, vegetables and fruits are found on most farms. All of them are food for
animals and people.
Grain can be fed to animals just as it is harvested. But before people use them
grains are usually made into flour or breakfast cereal. Bread, macaroni〔通心粉〕, and
cereals〔麦片〕 all come from grain.
Tomatoes, beans, potatoes, beets〔甜菜〕, lettuce〔生菜〕, carrots and onions are
field and garden vegetables.Can you think of any others? Vegetables are good for
people and for some animals such as pigs and rabbits.
Farms that grow vegetables for city people to eat fresh are called truck farms.
Truck farms areusually close to big cities. Each day hundreds of loads of fresh
vegetables are brought to stores on thefarmers' trucks. Without the truck farmers
people in cities would not eat well. And without city peoplewho eat fresh vegetables,
the truck farmers would have no work.
There are many kinds of fruit. Apples, pears, peaches, cherries, oranges,
grapefruit, and berriesare a few kinds. You will be able to think of other kinds that
you like. Most fruit is grown on specializedfarms. But many general farms have some
fruit to use and sell also.
Like vegetables, fruit is sold fresh in markets. But a large part of both fruit and
vegetable cropsis sent to factories to be canned or frozen.
In warm parts of our country farmers grow cotton, rice, tobacco, sugar cane〔甘蔗〕, and peanuts.
Specialized farms raise flowers and garden plants. They are sold to florists〔花商〕 and to families forhome gardens, or yards, or window boxes. Afarm that grow
plants and flowers to sell is called anursery〔苗圃〕. Most nurseries have glass
buildings, called hothouses or greenhouses. The hothouses areheated to protect the
plants from cold in the winter but let them get plenty of light, so they can begrown all
through the year.
Some farms grow only trees. Some of these are Christmas tree farms. Others are
large forestswhere trees are grown for their wood. The wood is used for buildings,
furniture and firewood. Sometree farms grow only nuttrees.
Task2
[答案]
A.
Problems Concerned The safety of some pesticides used to kill insects, especially
in developing countries:
1. poor quality pesticides, which often contain harmful .
2 / 5 chemicals
2. the poor quality of pesticide containers and product
information on the containers
Advantages of
Pesticides 1. pesticides kill insects and other organisms that threaten
crops.
2. pesticides also are used for public health. They control
insects that spread disease, such as mosquitoes that
spread malaria.
Possible Causes of
Low Quality
Pesticides Production problems and failure to use the right chemicals.
B.
1> The UN agencies report that the market value of pesticides in developing countries
last year wasabout three thousand million dollars.
2> The agencies called for worldwide acceptance of Food and Agriculture and World
HealthOrganizationpesticide rules. They say this would help guarantee the safe
production of and trade inpesticides.
[原文]
Two United Nations agencies are expressing concern about the safety of some
pesticides used tokill insects. They report that about thirty percent of all pesticides
sold in developing countries fail tomeet widely accepted rules for quality. They say
these products are a serious threat to human healthand the environment.
The UN Food and Agriculture Organization and the World Health Organization
gave the warning.
In developing countries, pesticides are used mainly for agriculture. Pesticides kill
insects andother organisms that threaten crops. Pesticides also are used for public
health. They control insectsthat spread disease, such as mosquitoes that spread
malaria.
The UN agencies report that the market value of pesticides in developing
countries last year wasabout three thousand million dollars. They say the estimated
market value of pesticides worldwidewas thirty-two thousand million dollars.
Officials say poor quality pesticides often contain harmful chemicals. These
chemicals often arebanned or restricted in some countries.
Possible causes of low quality in pesticides include production problems and
failure to use theright chemicals.Officials say the active chemicals in many pesticides
are stronger than those permittedby many governments.They also say poor quality
