The sketch of how to draw rice noodles is as follows:

1. Draw an oval bowl as a container for the rice noodles.

2. Draw a straight line at the bottom of the bowl to indicate the location of the rice noodles.

3. Draw a number of tiny ovals on the straight line to indicate the parts of the rice noodles.

4. Draw a short line on each tiny oval to indicate the texture of the rice floss.

5. Draw some curves around the edge of the bowl to represent the broth of the rice noodles.

6. Draw some dots on the broth to indicate the seasonings in the broth.

7. Draw some small circles on the top of the bowl to indicate the side dishes of the rice noodles.

8. Draw some small lines on the side dishes to indicate the texture of the side dishes.

9. Draw some small ovals in the background of the bowl to indicate other side dishes or decorations.

10Finally, use colors to fill the whole picture to make the rice noodles look more attractive.

With the above steps, you can draw a simple and interesting rice noodle sketch. Of course, you can add more details and colors if you want a more vivid effect.

Origin of Rice Noodles:

Rice Noodles is a traditional Chinese snack whose origin can be traced back to ancient times. According to legend, rice noodles originally evolved from the ancient "rice flour". In ancient times, rice was ground into a paste and then poured into boiling water to cook, resulting in a food called "rice noodles". Later, people began to cut the rice noodles into strips, which became what we now call "rice noodles".

In ancient times, rice noodles were considered a delicious food and were often used to entertain guests or as a festival food. In folklore, the invention of rice noodles is attributed to a poet named Li Bai. It is said that Li Bai was hungry during his journey, so he came to a small store and ordered a rice noodle. He found the rice noodles so delicious that he told the shopkeeper the recipe for them. Since then, the rice noodles have been spreading among the people.

With the passage of time, rice noodle has gradually developed into a cuisine with local characteristics. In different regions, the production methods and flavors of rice noodles vary. For example, the Bridge Rice Noodle in Yunnan region and the Dry Fried Beef River in Guangdong region are very famous rice noodle dishes.

Overall, rice noodle is a traditional Chinese cuisine with a long history and rich cultural connotation. It is not only delicious and nutritious, but also loved by people.