Test analysis: wax leaf specimen making steps: ① collecting first; Secondly, plastic surgery: choose the most complete organ from the same plant to make specimens, and wipe off the dirt on the specimens with a brush or gauze to keep the specimens clean and beautiful; (3) Flattening, and then placing the sorted specimens in dry old newspapers or papyrus paper, and pressing them with specimen clamps, or placing them between two boards and pressing them with books or bricks. When pressing, pay attention to whether the specimen is flat, whether the position of leaves and flowers is natural, and avoid covering each other; (4) Dry, so the place where the specimen is pressed should be ventilated to the sun, otherwise the specimen is not easy to dry, and it will curl and turn black, losing its original green color. Flowers must be padded with absorbent paper or absorbent cotton, and wet paper should be replaced with dry paper every day. Wet paper can be used after drying or drying. Pay attention to the posture of plants when changing paper, or you can put plants in absorbent paper and iron them with an iron. ⑤ After the plants are dried, select a few points and fix them on the table paper with thread or tape. For small plants or samples with soft branches and leaves, you can dip glue on one side of the sample with a brush, stick it on the table paper, press it a little hard, leave it for half a day to a day, and then fix the part that is not stuck on the table paper with adhesive tape after drying in the shade. After the wax leaf sample is made, you should put a label on the lower right corner of the watch paper, indicating the number and number.

Comments: The test questions of this kind of experimental steps need students to deepen their memory on the basis of practice.