现行生物教材中安排的生物实验有不少缺憾,有的实验和季节的应对不合理,致使实验材料难寻找。许多实验原本可以利用前面已经做过的实验结果来接着做,结果又被单独设置。在生物教学中笔者发现,可以用常见的小麦粒做实验材料来完成初中生物教材中的绝大部分植物探究实验。一、检测胚的活性以往判断种子是否适合播种都是靠测定发芽率来决定的,既费时又费力,现笔者采用快速检测种子中胚的活性来代替该实验。由于失去活性的胚,其细 There are many shortcomings in the biological experiments arranged in the current biological textbooks. Some experiments and seasons are unreasonable to deal with, which makes the experimental materials hard to find. Many experiments could have been done using the experimental results already done before, and the results were set separately. In the teaching of biology, the author found that most of the plant exploration experiments in junior high school biology textbooks can be completed by using common wheat grains as experimental materials. First, the detection of embryo activity In the past to determine whether the seeds are suitable for sowing is determined by measuring the germination rate, both time-consuming and laborious, now I use rapid detection of seed embryo activity instead of the experiment. Because of the loss of active embryo, its fine