Foods quickly spoil and break down if they are not stored correctly. Heat and damp encourage an increase of micro-organisms (微生物) ,and sunlight can destroy the vitamins in such foods as milk. Therefore, most foods should be stored in a cool, dark, dry place.

Some foods go had quickly, such as meat, eggs, and milk. They should be stored in a refrigerator or in the underground basement of a house.

Dry goods, such as flour and rice, should be kept a slightly higher temperathure than foods that go bad quickly. A temperature of 15℃ is ideal (理想的). In Britain and northem European countries this means that the room in which dry goods are stored should share the general heating of the house. The room should also be well aired and, above all, dry. Damp very quickly causes the growth of the green molds (霉) . These molds often grow on cheese if it is not stored properly.

Fruits and vegetables need cool, damp, but frost-proof (防霜凍的) conditions. Therefore, an underground basement usually makes an excellent storage place. If the central heating until is located in the basement, however, it will not be ideal unless the unit and the pipes do not give out any heat.

Foodstuffs (食料. 糧食) do not break down quickly. If correctly stored, they should keep for quite long periods of time. Thus, salt and sugar will keep for about two years; tinned meat goods, such as beef and chicken, for about eighteen months; flour and other dry goods, for about a year. Freezing the foodstuffs that spoil easily preserves them for much longer than is otherwise possible. But even frozen foods do not keep their food value of their taste for ever. As a general rule, meat should be cooked and eaten within a year afrer it is frozen; fish, within six to ten months; fruits and vegetables, within three to six months.


練習(xí)冊系列答案
相關(guān)習(xí)題

科目:高中英語 來源: 題型:

The G20 summit(峰會)in London could be remembered as the turning point when the______ between the developing and developed world ends for ever.

A. tendency                  B. intention                   C. appreciation              D. distinction

查看答案和解析>>

科目:高中英語 來源: 題型:

――Thank you for your timely help.

――_____________.

A It’s my pleasure                           B With pleasure   

C It’s nice of you to say so              D I don’t think so

查看答案和解析>>

科目:高中英語 來源: 題型:

―― Is it cold?

―― Yes, a little, but quite warm       January.

       A. in                     B. on           C. for                  D. by

查看答案和解析>>

科目:高中英語 來源: 題型:

While building a tunnel through the mountains,        .

       A. an underground lake was discovered

B. there was an underground lake discovered

C. a lake was discovered underground

D. the workers discovered an underground lake

查看答案和解析>>

科目:高中英語 來源: 題型:

Selecting a digital camera for personal use is no easy task because technology ______ so rapidly.  

A. is changing                   B. has changed

C. will have changed          D. will change

查看答案和解析>>

科目:高中英語 來源: 題型:

It was ________ computer games that took the boy a lot of time that he ought to have spent on his lessons.

A. to have played                    B. playing

C. played                               D. having played

查看答案和解析>>

科目:高中英語 來源: 題型:閱讀理解

New Zealand

What can you see?

Mountains, volcanoes, rivers, lakes, waterfalls, forests, beaches.Both islands are mountainous.In fact, only 30% of New Zealand is flat.

 

The Maoris

When the Maoris first arrived in New Zealand, they lived in villages and were excellent fishermen, hunters and farmers.About 50 years ago many Maoris started to live and work in the large cities and took jobs in government, industries, medicine and education.They are proud of their culture (文化) and are determined to keep many of the customs which are part of their way of life.

Who can you meet?

Most people live on North Island.Eighty-five percent of New Zealanders are “pakeha” (“white men”), which means their “great grandfathers” came from Europe.Ten percent are Maoris.The Maoris came to New Zealand from the Polynesian islands probably around the tenth century.The “pakeha” started to arrive in New Zealand from Europe about 200 years ago as farmers and traders.

 

Fact box: New Zealand

Position: South of the Equator (赤道); nearest

neighbour: Australia, 1600 km away.

Size: Two main islands ― North Island and

South Island: together they are 268.680 sq.km.

Population: 4 million

Capital: Wellington

Languages: English and Maori

 

56.Which of the following is a fact about New Zealand?

A.20% of the population being Maoris.    B.Four million white people.

C.About 1600 km south of the Equator.  D.Nearly 1/3 of the country being plains.

57.The country’s population is mainly made up of         

A.the white people and the Polynesians           B.the white people and the “pakeha”

C.the Maoris and the white people                  D.the Maoris and the Polynesians

58.When did the white people begin to live in New Zealand?

A.1000 years ago.                                       B.200 years ago.            

C.85 years ago.                                           D.50 years ago.

59.What do the Maoris value most in life?

A.Living in small villages.                             B.Developing farming skills.

C.Keeping their own culture.                        D.Taking up government jobs.

查看答案和解析>>

科目:高中英語 來源: 題型:

Can you ___ me a job when I get there? You know , I have to work in order to pay for my schooling .      

 A. provide      B. guarantee       C arrange     D. apply

查看答案和解析>>

同步練習(xí)冊答案