有关食物的英语演讲稿

1、精品文档有关食物的英语演讲稿good morning everyone, before my speech, i want to ask one question, what do you eat this morning? yeah, food is present in our life every time. so today my topic is how do we eat on campus?1, , in china there is an old saying: bread is thestaff of life. the chinese meaning is民以食为天。obv

2、iously, it means food plays a decisive di ' saisiv role in our daily life, food safety is a matter of primary 'praim?ri importance , the issue is closely related to ordinary people ' s health.2, as we know, the food safety is a serious problem in china, and on campus ,the matter is also

3、exist, and the unhealthy food harm our health everyday.forexample, in the morning, you buy a donut 'd?un?t for breakfast, and likely, the donut is made by drainage 'dreinid? oil; and when you hungry you buy kebab k? ' b?b, it may be dealed with chemical materials.so even on campus, we al

4、so should improve food safety awareness.3, the unhealthy food seriously harm our body, itcan cause different kinds of diseases, from a headache to cancer, this is not a threat, some unhealthy food, containing various additives. and which give a tremendous threat to us. some unhealthy food will make

5、us ill, such as diarrhea,dai? ' ri?、 stomach ache and other disease of digestive tract. some food additives use chemical materials to make food looks better, but it will carcinogenic ,k a :sin?u ' d?enik in a long time.4, due to food safety is important in our life, so there so many things w

6、aiting for the government to do.（问 1） first, strengthening food safety legislation,led?is ' lei?n , and use the experiences of developed countries. strongly punish criminal for food safety. second, our government should promote food safety knowledge, to rise people ' s of self-protection.5,

7、what is more, as a postgraduate, we also should do more on food safety. first of all, we should learn some essential common sense about safety food, and learn to recognize the unhealthy food by ourselves.（ 问 2） second , do not covet 'k?vit petty gain , innormal situation, the food price is stabl

8、e, when you see a abnormal price, be carefull ! last, everyone should have awareness of unhealthy food, raise the sense of prevention.though the food safety situation is bad, but i still believe through the joint efforts of government and all communities, we finally will eat the security food .有关食物的

9、英语演讲稿篇2i ' m a like eggs and eggs is very good for me .it ' s very coconut is a very sweet .i like them.what about fruit?i like banana very always growsin the warm area. it ' s nice to eat, and it is good for our healths. like us ,monkeys also like to eat bananas.you can see this in the

10、zoo.they are really healthy and think you will like them,too.有关食物的英语演讲稿篇3I shall be speaking today aboutBefore we start our presentation, let ' s take a brief look atIf you give a diet to laboratory animalit' s verycommon for animals to gain a good bit of weight when given access to this die

11、t. Even if they ' re given healthy food at the same time, they ' ll tend to ignore the healthy food and eat a diet like this. And there are two properties of this diet that help promote overeating and obesity in laboratory animals. What would you say the two features are?Sugar and is what pe

12、ople usually guess first and that ' s correct, fat is number two, so you guys are good so far. Who can guess what the third might be? Salt is a good guess, but that ' s not the answer. But why would a lab animal seek out a diet, become very overweight, become nutritionally deficient in some

13、things because it ' s not eating the healthy foods to the extent that it becomes unhealthy? The fact is those lab animals have a hard-wired preference for foods that are high in fat and high in sugar, primarily because of the energy density that those foods bring to one, the seeking out fat and

14、sugar is a highly evolved, adaptive evolutionary trait of animals and human.Today we ' re going to talk the two big ones that people are usually concerned with: carbohydrates and fat.Let ' s start with carbohydrates. Sugars, in other ' re used by the body for pretty immediate are threecl

15、asses of sugar: monosaccharides, disaccharides, and polysaccharides. It ' s not so important that you know which sugars fall under each of these categories, but it is important to know that there are different categories of sugars. Under the monosaccharides, glucose, fructose and galactose are t

16、he sugars. Disaccharides, where you have several sugars paired together, are maltose, sucrose, and the polysaccharidesare the complex carbohydrates,andthat ' s starch, glycogen, and cellulose. If you look at sources of these differentcarbohydrates,theglucose comes from fruit. That ' s not th

17、e only place but that ' s a primary source of it. You see the lactose of course from milk, and then you get down to the celluloseand starches,cereals and vegetables become the primary source of these. Are we eating too much or too little of these different classes of sugars? Well, as you might g

18、uess, we eat too much of the si-mp-le sugars and the disaccharide sugars and we eat too little of the complex carbohydrates. So if you followed a diet where you ate less junk food and ate more fruits and vegetables, for example, just those two little rulesyou would help shift around this balance of

19、sugars in a way that would benefit health. There' s sugar in alot of foods where you don ' t expect it. For example: peanut butter. Here ' s a list of ingredients from skippy peanut butter and you see that sugar is the second most commoningredient. Here' s another example. Beef stew,

20、 you wouldn ' t necessarilyexpect to find sugar in beefstew but it ' s there.Now it ' s down the list ofingredients, it ' s actually toward the end, but if you look at the marketing of this and look at the can it says, there ' s fresh potatoes and carrots, but actually there '

21、; s more sugar in this than there is carrots.Okay, let ' s talk about fat for a moment. Fat has twice the calories per unit weight as protein and carbohydrate. So it ' s a very efficient way of securing energy. But if one is not deprived of calories,then having fat my not be so helpful. Ther

22、e are different kinds of fat that have different impacts on health. Several concepts that are relevant in the discussion of fat: cholesterol, saturation, and trans fat. First of all, are different kinds of cholesterol, HDL and LDL. It was a major discovery when scientistsin the last century found th

23、at HDL is good and LDL is bad, the HDL, that ' s protective against things like heart disease and you want to have a higher level of that and a lower level of saturation is interesting.You hear a lot about saturated fat and unsaturated fat.As you know, unsaturated fat is healthy and you wantto h

24、ave this in your diet. Trans fats have become a really interesting issue. There are groups of people who have studied the impact of trans fats on health for a number of years. They have found that trans fats were having a very negative impact on are trans fats? They' re unsaturated fatty acids t

25、hat get formed when foods are partially hydrogenated. Whenyou see that partially hydrogenated oils on an ingredient list, that means there ' s trans fat. Why would companies do this? Why would the food industry want to introduce trans fat inthe first place? Well, it changes the food in ways that are commercially appealing for the industry. It givesfoods a longer shelf life. They tend to stay stable during deep frying and then the palatability goes up and the foods taste