46　课时分层训练(三十四)　Unit 1　If everyone starts to do something, the world will be saved. 外研版 九上

课时分层训练(三十四)
Unit 1　If everyone starts to do something, the world will be saved．
知识点一　danger的用法
1．Some wild animals need our protection，because they are in great danger now．
2．At the beginning，many people in Europe refused to eat tomatoes because they thought the fruit was dangerous (danger)．
3．It's reported that polar bears are in danger (处于危险中) because of global warming(全球变暖)．
4．吸烟严重危害健康。
Smoking is a serious danger to health．
知识点二　It's no use doing sth．句型的用法
1．It's no use A in the classroom all day long．
A．studying B．．to study
C．study
2．It's no use spending (spend) too much time on computer games．
3．It's no good use eating (eat) too much sugar．
知识点三　waste的用法
1．They only need to collect waste．(英译汉)
他们只需要收集废品。
2．汤姆，你将在什么时候为我们展示如何进行垃圾分类？
When are you going to show us how to separate waste into different groups, Tom
3．浪费食物是一个坏习惯。(汉译英)
It's a bad habit to waste food．
完形填空
It was a sunny afternoon．Sam and his sister Lily were helping Mum 1 the room．
“Hey, Sam，” said Mum．“Would you please put these paper towel tubes(纸巾内管) in the bin？” Sam looked at the tubes and something came to him．He asked, “Could I use them to make a 2 ？”“Great idea！” said Mum．“Do we have any other good recycling materials(可回收材料)？” asked Sam．“Come on．Let's go and see what else we can find in 3 house，” said Mum．
Then, they walked around and kept 4 ．“This box would be good，” Sam pointed out．“ 5 it's full of books．” “I am going to put those books on the shelves(书架)．Can you give me a 6 ？ Then you can have the box，” said Mum．“Sure, no problem！” said Sam 7 ．“Now I only need several more things．” Sam happily collected all his materials．He sat on the floor, cutting and gluing all afternoon．
“I like your robot，” said Lily．“Thanks．But his head is broken, and I can't 8 it，” said Sam．“Hmm，” said Lily．She came up with an idea．She ran away and ran right back with an old hat．“Remember this hat？” asked Lily．“I wore it when I was a baby．Now it's too 9 for me．” “Thanks, it's perfect！” said Sam．“What do you think, Mr Robot？”
“I love it，” said Mr Robot, in a funny voice．“You are really good 10 making things out of recycling materials．”
(　B　)1．A．fill up　　　 B．clean out
C．build up D．find out
(　C　)2．A．box B．．book
C．robot D．plane
(　A　)3．A．our B．．your
C．their D．its
(　D　)4．A．running B．．listening
C．cutting D．searching
(　B　)5．A．Because B．．But
C．So D．Or
(　D　)6．A．pen B．．hat
C．leg D．hand
(　D　)7．A．sadly B．．carefully
C．angrily D．excitedly
(　C　)8．A．see B．．find
C．fix D．hit
(　B　)9．A．big B．．small
C．perfect D．new
(　A　)10．A．at B．．to
C．for D．with
【创新运用】
短文还原
阅读下面短文，从短文后的选项中选出能填入空白处的最佳选项。有两项多余。
1． G ？ Many of them use chemicals to kill weeds(杂草)．The trouble is, these weedkillers also kill wildlife, pollute rivers and are bad for the fields．2． A ．This kind of robot can cut weedkiller use by 90%．The robot is really smart because it only kills weeds but not crops(庄稼)．
3． E ？
Several cameras are built into the robot．The cameras facing the ground take photos to help 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 on the weeds．
The robot is energy friendly．4． B ．
How the robot will develop
The scientists do not want to just stop at the achievement they have made．5． D ．The improved model of robots will exactly discover weeds and dig them out instead of weedkillers．
Robots could be programmed to leave some harmless weeds in the fields to support wildlife living there．
A．But scientists have created a farmyard robot
B．It is powered by the energy from the sun
C．Where the robot is used
D．They're working on the new designs to improve the model
E．How the robot works
F．Why do farmers choose the robot to work in their fields
G．How do farmers usually kill weeds in the fields
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