内容正文:
Unit 7 Will people have robots?
Section A Grammar focus &3a-3c
I.用所给动词的适当形式填空。
save,build,pollute,be,plant
1.In the near future,there____________________self-driving cars in our city.
2.Everyone should play a part in____________________the earth.
3.It's necessary for us________________________more trees on both sides of the road.
4.Look!The factory__________________________the river!It's terrible!
5.Jack Green another famous building with his workers last year.
II.根据括号内所给单词的提示填空。
1.Cities will be much (crowded)in the future.
2.Did you play a part in (clean)the classroom yesterday?
3.You are getting fatter.You should take (much)exercise and eat(little)food.
4.In the future,I think people will live (be)200 years old.
5.There (be)more classes in the coming year.
III.六选五 根据短文内容从下列选项中选出能填入文中空白处的最佳选项,选项中有一项多余。
Farmyard robots can cut down chemical pollution
1.____________?Many of them use chemicals(化学品)to kill weeds(杂草).The trouble is, these weedkillers also kill wildlife,pollute rivers and are bad for the fields.2._____________.This kind of robot can cut weedkillers use by 90%.The robot is really smart because it only kills weeds but not crops.
3. .
Several cameras(相机)are built into the robot.The cameras facing the ground take photos to help the robot"see"the plants it passes.The robot compares(比较)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 on the weeds.
The robot is energy-friendly.4.
How the robot will develop
The scientists do not want to just stop at the achievement they have made.5. .The improved model of robots will find ways instead of weedkillers.
Robots could be programmed to leave some harmless(无害的)with in the fields to help wildlife living there.
A.But scientists have created (创造)a farmyard robo