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Unit 4 We can do it！
课时练习4 Hit it big
主题情境 阳光社区举行了“生活中的小发明”比赛，蓝蓝参加了比赛，一起去看看吧！
一、第一关：找寻关键词。读一读，选出与所给单词同类的
一项。
( ) 1.phone A.fold B.wheelchair C.Last
( ) 2.put A.window B.glue C.middle
( ) 3.string A.solve B.cloth C.draw
( ) 4.bottom A.next B.easily C.middle
( ) 5.then A.fine B.free C.first
二、第二关：快答小知识。快速选出正确选项，补全句子或对话。
( )1.We need to ______the problem with a new invention.
A.solve B.save C.have
( )2.What materials are you going to _______for your invention？
A.uses B.use C.using
( )3.You should__________materials first before making the invention.
A.get ready for B.ready C.get ready
( )4.—Do you know_______great inventions in the world？
—Yes，I do.
A.much B.some C.any
( )5.—What are you going to invent？
—I’m going to_______a flying bike.
A.invent B.invented C.invention
三、第三关：介绍发明物。读一读下列句子，用1-5给句子排序组成一个完整的制作流程。
( )Last, I put my pens and pencils into the roll.
( )Next，I cut the paper to fit the roll，and put glue on it.
( )This pen holder is great—it works well，and my desk is tidy！
( )Then，I wrapped the paper around the roll and pressed it.
( )First，I got a toilet paper roll，coloured paper and glue.
四、比赛结束后是知识科普环节。请选词补全对怀特兄弟的介绍。
The Wright brothers really like to 1.______things.Every time they go out，they watch some birds 2._____ happily in the sky. They think it’s cool to fly like those birds，so they want to invent a flying 3.______.First，they watch carefully and 4.____how the birds fly with their wings(翅膀).Next，they talk together and 5._______a picture of their flying machine，showing all the parts they need. Then they find wood and cloth，and work hard to 6._______the flying machine little by little.Last，after trying many times，their machine works—they can fly like birds at last！
( )1.A.invent B.build C.draw
( )2.A.flying B.watching C.drawing
( )3.A.machine B.bird C.plane
( )4.A.draw B.watch C.learn
( )5.A.draw B.build C.invent
( )6.A.draw B.build C.watch
最后，主办方为大家分享了历届的优秀发明。请阅读材料，完成下列任务。
My name is Linda.I am now in everyone’s family.Many people like me.They use me to see films or get some information(信息)for things.I will help students study on the Internet.I think I am very helpful to people.1._______
I am Eddie.I am thin but strong.I will come into everyone’s family in the future.I can help people do some housework.I can make people relax(放松).2.______
Please look at me.My name is David.I am very small and light.I have many brothers and sisters.We will take people to many places.We don’t use any gas(汽油).We only use sunlight.So we don’t make any air pollution(污染).3.______
任务一：阅读材料，将图片序号填入对应的位置。
任务二：阅读材料，选择正确选项。
( )1.________can help students to have lessons on the Internet.
Linda B.David C.Eddie
( )2.Eddie can_____.
A.drive people to another place
B.help students do their homework
C.wash the dishes and sweep the floor
( )3.The underlined word“sunlight” means“_____”.
A.太阳光 B.灯光 C.天然气
( )4.Which of the following is right？
A.David will make some pollution for people.
B.Eddie will help us do something at home.
C.Linda can take people to the cinema to see a film.
六、随着科技的进步，新四大发明逐渐走入了我们的生活。阅读短文，判断句子正(T)误(F)。
In ancient(古老的)times，people were very clever and had four great inventions— paper making，gunpowder(火药)，printing and the compass.
What about now？ We also have lots of great inventions.
Did you use any of these inventions？ These inventions can bring(带来)us a lot of convenience to people’s life.
( )1.The people were clever in ancient times.
( )2.The high-speed railway was one of the four great inventions of ancient times.
( )3.Now we can pay(支付)by phone.
( )4.The underlined word “convenience” means “障碍”.
( )5.From this passage we know both ancient and modern great inventions.
参考答案
一、1.B 2.B 3.B 4.C 5.C
二、1.A 2.B 3.A4.C 5.A
三、42531
四、1.A 2.A 3.A 4.C 5.A 6.B
五、任务一1.B 2.A 3.C
任务二1.A 2.C 3.A 4.B
六、1.T 2.F 3.T 4.F 5.T

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