《2025年5年中考3年模拟九年级英语下册人教版山西专版》

请阅读下面短文，根据语篇内容，从方框内所给的选项中选出能填入空白处的最佳选项，使短文意思通顺。选项中有一项为多余项。
　　Farmyard robots can cut down chemical pollution.
　　　19　?Many of them use chemicals to kill
weeds　(杂草).　The trouble is that these weedkillers also kill wildlife,pollute rivers and are bad for the fields.　　20　.This kind of robot can cut weedkiller use by90%.The robot is really smart because it only kills weeds but not crops(庄稼).
　　　21　？
　　Several cameras are built into the robot.The cameras facing the ground take phottos to hellp the robot“see"the plants it passes.
　　The robot compares each photo to a library of plant photos to decide on which plants are weeds.
　　Robot arms move into position to give a small dose(剂量)of weedkiller to the weeds.
　　The robott is energy−friendly.　　22　.
　　How the robot will develop
　　The scientists do not wantt to just stop at the achievement they have made.　　23　.　The improved model of robots will exactly discover weeds and dig them out instead of using weedkillers.
　　Robots could be programmed to leave some harmless weeds in the fields to support wildlife living there.(E9213003)

19.______20.______21.______22.______23.______

答案： 19. F 20. A 21. E 22. B 23. D