《英语单词拼读规则》教学辅导
《英语单词拼读规则表》最新版(含mp3)
《英语单词拼读规则》(一书一表50元包邮)
|首 页|表 一|表 二|表 三|表 四|表 五|表 六|表 七|表 八|表 九|名词解释|下载中心|

高效率记单词 低成本学英语 节约学习时间 享受生命乐趣

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页

To be or not to be a vegetarian

A strict vegetarian is a person who never in his life eats anything derived from animals. The main objection to vegetarianism on a long-term basis is the difficulty of getting enough protein-the body-building element in food. If you have ever been without meat or other animal foods for some days of weeks (say, for religious reasons) you will have noticed that you tend to get physically rather weak. You are glad when the fast is over and you get your reward of a succulent meat meal.

Proteins are built up from approximately twenty food elements called ‘amino-acids’, which are found more abundantly in animal protein than in vegetable protein. This means you have to eat a great deal more vegetable than animal food in order to get enough of these amino-acids. A great deal of the vegetable food goes to waste in this process and from the life-long vegetarianism.

The economic side of the question, though, must be considered. Vegetable food is much cheaper than animal food. However, since only a small proportion of the vegetable protein is useful for body-building purposes, a consistent vegetarian, if he is to gain the necessary 70 grams of protein a day, has to consume a greater bulk of food than his digestive organs can comfortably deal with. In fairness, though, it must be pointed out that vegetarians claim they need far less than 70 grams of protein a day.

Whether or not vegetarianism should be advocated for adult, it is definitely unsatisfactory for growing children, who need more protein than they can get from vegetable sources. A lacto-vegetarian diet, which includes milk and milk products such as cheese, can however, be satisfactory as long as enough milk and milk products are consumed.

Meat and cheese are the best sources of usable animal protein and next come milk, fish and eggs.

Slow and careful cooking of meat makes it more digestible and assists in the breaking down of the protein content by the body. When cooking vegetables, however, the vitamins, and in particular the water-soluble vitamin C, should not be lost through over-cooking.

With fruit, vitamin loss is negligible, because the cooking water is normally eaten along with the fruit, and acids in the fruit help to hold in the vitamin C.

Most nutrition experts today would recommend a balanced diet containing elements of all foods, largely because of our need for sufficient vitamins. Vitamins were first called ‘accessory food factors’ since it was discovered, in 1906, that most foods contain, besides arbohydrates, fats, minerals and water, these other substances necessary for health. The most common deficiencies in Western diets today are those of vitamins. The answer is variety in food. A well-balanced diet having sufficient amounts of milk, fruit, vegetables, eggs, and meat, fish or fowl (i.e. any good protein source) usually provides adequate minimum daily requirements of all the vitamins.

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页

明明白白读英语 轻轻松松记单词

You can memorize words in an efficient way if you pronounce them reasonably. Say words correctly, and you will learn them easily. Correct pronunciation means correct spelling of the words. English spelling is not good to guide its pronunciation. But spelling and pronunciation have closed relationship. They match each other perfectly. Sometimes we can pronounce a word according to its spelling. English pronunciation can also guide its spelling. This is a two-way communication.
支付方式 《英语单词拼读规则表》 《英语单词拼读规则》 《英语拼读例词分类》
 

资源下载(1)

Mantid
英语拼读教学的再认识
人名表(Name List)
《英语单词拼读规则》(修订版)修订说明
英语字组表(A3)
英语字组表(A4)
《英语单词拼读规则》例词分类手册(下载)

相关资料

这套资料适合什么年级的学生?
我国英语教学中的语音体系问题
ie的特殊性
关于[tr][dr][ts][dz]的疑惑
Gimson语音体系
疑难问题PQ汇总
常见问题FAQ汇总
关于弱重读音节

加微信 13855830314 下载高清视频

五花八门(9)

The Rainy Day 雨天(mp3)
A Grain of Sand 一粒沙子(mp3)
A Forever Friend 永远的朋友(mp3)
Money
Diamonds
Canning food
The Olympic Games
Auction sales
The planemakers
Dreams-what do they mean?
To be or not to be a vegetarian
Making leather
Cat
The history of chemistry
Electric fish
Dried food
The United Nations
Pottery
Pasteurization
Modern surgery

五花八门 第1页 第2页 第3页 第4页 第5页 第6页 第7页 第8页 第9页 第10页 第11页 第12页 第13页 第14页 第15页 第16页 第17页 第18页 第19页 第20页 第21页 无标题文档

欢迎订购《英语单词拼读规则表》
《英语单词拼读规则》
多种支付方式 

《英语单词拼读规则表》历年不同版本(正面)

《英语单词拼读规则表》历年不同版本(背面)

2005年版《英语单词拼读规则表导读》

2007年版《英语单词拼读规则表导读》

语文音像版《英语单词拼读规则》及DVD教学光盘

《英语单词拼读规则》(安师大版)

网友们经常提及的问题
《英语单词拼读规则》
字符概念的引入
单词注音方法推荐
对英语单词可拼读性的认识
辅音字母双写的含义
字符的不可分割性
记忆英语单词的三种境界
26个字母出现频率排顺序
字符的“名称”与“读音”
判断单词读音的三个步骤
关于ia io iu 及三元音
拼读与音析
长音与短音
字符 元字符 单元字符
复元字符
辅字符 单辅字符
复辅字符
|关于本站|下载中心|网络课程|规则导读|练习答案|友情链接| |

编著 李 徽 联系电话:13855830314 QQ:3759326
Copyright© http://www.sprew.net All rights reserved 皖ICP备08100528号