What is food?

Grain refers to the animal and plant products that human beings eat in order to survive.

1, concept

Grain refers to animal and plant products on which human beings depend, such as rice, wheat, corn, beans, potatoes, vegetables, fruits and meat. Grain is the basic food source of human beings, which is of great significance to human survival and development.

There are many kinds of food, and each kind of food has its unique nutritional composition and uses. Therefore, it is very important to reasonably match the intake of grain for maintaining good health.

Grain is the foundation of agriculture, animal husbandry and food industry, and also plays an important role in the country's economic development and social stability.

2. Types

The food concept of FAO refers to grains, including wheat, rice and coarse grains.

Wheat: wheat, barley, hulled wheat, highland barley (barley), rye and oats (wheat).

Rice (rice): japonica rice, indica rice, glutinous rice, upland rice (upland rice) and deep rice.

Coarse grains: corn, sorghum, buckwheat, millet (millet, millet) and millet (millet).

As auxiliary food crops: adzuki bean, mung bean, cassava, sweet potato (sweet potato, sweet potato) and potato (potato).

Make sentences:

1. Many places have been affected this year, but food prices have not fluctuated.

Rats destroy a lot of food every year.

The grain price has been soaring this year.

4. Songliao Plain has fertile soil and abundant food.

5. Rice is the main food crop in China.

6. What a pity that the grain was bought by farmers with sweat and wasted casually!

7. The grain output of China has exceeded 500 million tons.

8. It is estimated that the grain output this year will exceed that of last year.

9. Farmers adopted new varieties, and their grain output doubled.

10, cherish the fruits of farmers' labor and don't waste food.

1 1. The harvested grain is piling up.

12, the grain should be dried in time when it is wet, otherwise it will be easy to get moldy.

13, cherishing food means respecting the fruits of farmers' labor.

We must cherish food.

15, there is a lot of grain in the warehouse.