Unit 6 When was it invented? Section A (3a~4c)课时作业（含答案）

Unit 6 Section A (3a~4c)
【基础性作业】
一、单项选择
( )1.A new cinema 　　　　in the city last year.
A.built　 　　　B.was built
C.was building D.is built
( )2.—Did you go to Joe's birthday party last night
—No, I　　　　.
A.didn't invite
B.wasn't inviting
C.wasn't invited
D.am not invited
( )3.A boy 　　　　Andrew phoned you just now.
A.names B.naming
C.calls D.called
( )4.We should　　　　good eating habits.
A.develop B.grow
C.increase D.find
( )5.We 　　　　into five groups to go to the old people's home.We did many things to cheer them up.
A.divided
B.are divided
C.were divided
D.divide
【拓展性作业】
二、根据汉语提示完成下列句子,每空一词
6.毋庸置疑,南海那些岛屿是由中国人最先发现的。
There is 　 　 　 　 that those islands in the South China Sea were first discovered by Chinese.
7.这本书会尽快翻译成英语吗
Will the book be 　 　 　 　 English as soon as possible
8.我们学校不到18.00.人。
There are 　 　 　 　 1.,80.0. students at our school.
9.奥林匹克运动会每四年举行一次。
The Olympic Games 　 　 　 　 every four years.
10.忽然他听到上方传来一阵惊叫声。
　 　 　 　 　 　 　 　 he heard a cry above him.
【综合性作业】
三、阅读理解
　　(跨学科·科学)Let's look at two old but popular inventions we use in our daily life.
Band-Aid(创可贴)
The first Band-Aid was made by an American named Earle Dickson in 19.21.. The idea came to him by chance. Dickson's wife Josephine often cut her fingers in the kitchen. At that time gauze (纱布) and adhesive tape (胶带)didn't come together. People had to cut them to the right size. Dickson found they were always too big and soon fell off. So he put a piece of gauze on the center of a piece of tape. This is how he made the first Band-Aid.
Later Dickson's new invention became very popular all around the world.
Bubblegum (泡泡糖)
Bubblegum was invented by accident. In 19.28., theAmerican gum company worker Walter E. Diemer played around with new chewing gum recipes. Chewing gum had already been invented more than half a century before then. But Diemer found that the gum he made was easy to blow. He blew a bubble and then saw the possibilities. He took some of his new gum to a shop and it sold out in a single afternoon. Since then, Dubble Bubble—the first brand of bubblegum—has made kids happy all around the world.
( )11.Josephine often 　　　　in the kitchen.
A.hurt her fingers
B.made bubblegum
C.played with new recipes
D.cut gauze to the right size
( )12.Before the Band-Aid was invented, 　　　　.
A.the gauze and adhesive tape were always small
B.people had to cover the cut with a piece of cloth
C.people didn't need to cut the gauze
D.people had to cut the gauze and adhesive tape to the right size
( )13.Bubblegum was invented by an 　　　　.
A.American doctor
B.American gum company worker
C.American housewife
D.American gum shopkeeper
( )14.Bubblegum was invented more than 　　　　years later than chewing gum.
A.30.　　 B.50.
C.80. D.10.0.
( )15.Diemer's bubblegum sold out during 　　　　.
A.a day
B.a morning
C.an afternoon
D.two days2
参考答案
Section A (3a~4c)
基础性作业
1~5　BCDAC
拓展性作业
6.without/no　doubt
7.translated　into
8.less　than
9.takes　place
10.All　of　a　sudden
综合性作业
11~15　ADBBC