There are many food illustrations in primary school textbooks. Here are some common examples: 1. Dumplings: The illustrations show the shape and wrapping method of dumplings, as well as different flavors of dumplings, such as boiled dumplings, fried dumplings, etc.

2. Noodles: The illustrations show different types of noodles, such as pasta, ramen noodles, shaved noodles, etc., as well as different noodle ingredients and soup bases.

3. Steamed buns: The illustration shows the shape and wrapping method of steamed buns, as well as steamed buns with different fillings, such as meat buns, bean paste buns, etc.

4. Fried rice: The illustration shows the making process of fried rice and different types of fried rice, such as egg fried rice, seafood fried rice, etc.

5. Grilled chicken legs: The illustration shows the shape and grilling process of grilled chicken legs, as well as the combination of different seasonings and side dishes.

6. Fruit salad: The illustration shows the making process of fruit salad and different types of fruits, such as apples, bananas, grapes, etc.

7. Fried chicken nuggets: The illustration shows the shape and frying process of fried chicken nuggets, as well as the combination of different seasonings and side dishes.

8. Pizza: The illustration shows the shape and making process of pizza, as well as different types of pizza, such as Italian pizza, seafood pizza, etc.

9. Kebabs: The illustration shows the shape and grilling process of kebabs, as well as different types of meat skewers, such as mutton skewers, chicken skewers, etc.

10. Ice cream: The illustration shows the shape and making process of ice cream, as well as different types of ice cream, such as chocolate ice cream, strawberry ice cream, etc.