内容正文:
Unit 4 We can do it!
第4课时 Hit it big(分层作业)
PART 01
基 础 练
一、读一读,选出与所给单词同类的一项。
( ) 1. phone
A. prepare B. wheelchair C. finally
( ) 2. hang
A. concert B. glue C. middle
( ) 3. string
A. connect B. piece C. cover
( ) 4. bottom
A. trash B. flow C. middle
( ) 5. finally
A. fine B. free C. first
二、从方框中选择合适的单词填空。
A. wings B. fine C. prepare D. strings E. connect
1. Jack’s grandfather is today.
2. She ties the box with some .
3. Can you the two boxes together?
4. The bird uses its to fly in the sky.
5. We for the art class every Friday.
PART 02
提 升 练
三、单项选择。
( ) 1. Lily’s mother ______ very pleasant yesterday.
A. is B. will C. was
( ) 2. Tom cleans the bottle, and then he ______ a hole at the top of it.
A. is making B. makes C. make
( ) 3. Can you ______ a good way to solve the problem?
A. think of B. think about C. think over
( ) 4. — Do you know who ______ the umbrella?
— No, I don’t.
A. invention B. invent C. invented
( ) 5. Tom has ______ idea to ______ the birds.
A. a; feed B. an; feeder C. an; feed
四、【新情境题·名人事迹】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. 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 build the flying machine little by little. Finally, 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
PART 03
拓 展 练
五、【新语篇·名人传记】从蔡伦到爱迪生和莱特兄弟,再到其他现代发明家,创新与发明让生活变得更美好。阅读短文,选择正确的答案。
Cai Lun
Long long ago, people wrote or drew on bamboo and silk. About 2,020 years ago, Cai Lun improved the way to make paper. People could write more on the new kind of paper.
Thomas Alva Edison
Edison had many great inventions in his life. If he hadn’t invented the practical light bulbs (电灯泡), we might still be using candles. People call him the “Father of the Light”.
The Wright Brothers
The Wright Brothers invented the first aeroplane. They watched eagles fly and designed their first plane like a kite. They tried many times and failed again and again, but they never gave up. Finally, they succeeded and could fly high in the sky.
( ) 1. What did Cai Lun do about 2,020 years ago?
A. He invented paper completely.
B. He improved the way to make paper.
C. He invented the light bulbs.
( ) 2. Why do people still remember Edison’s light bulbs?
A. Because it could fly high in the sky.
B. Because it was practical and useful for daily life.
C. Because it was the same as candles.
( ) 3. What did the Wright Brothers watch to get ideas for their plane?
A. Kites. B. Paper. C. Eagles.
( ) 4. What would happen if Edison didn’t invent the practical light bulbs?
A. People would never use lights.
B. People might still use candles at night.
C. The Wright Brothers would invent lights.
( ) 5. The underlined word “practical” in Edison’s part means “______”.
A. 无用的 B. 实用的 C. 昂贵的
参考答案及解析
一、读一读,选出与所给单词同类的一项。
1. B 2. B 3. B 4. C 5. C
【解析】1. phone(电话)属于名词;选项 A prepare 是动词,选项 B wheelchair(轮椅)是名词,选项 C finally 是副词。故答案为 B。
2. hang(悬挂)属于动词;选项 A concert 是名词,选项 B glue(粘贴)是动词,选项 C middle 是名词。故答案为 B。
3. string(细绳)属于名词;选项 A connect 是动词,选项 B piece(碎片)是名词,选项 C cover 是动词。故答案为 B。
4. bottom(底部)表示方位;选项 A trash 是名词,选项 B flow 是动词,选项 C middle(中间)表示方位。故答案为 C。
5. finally(最后)属于顺序副词;选项 A fine 是形容词,选项 B free 是形容词,选项 C first(首先)是顺序副词。故答案为 C。
二、从方框中选择合适的单词填空。
1. B 2. D 3. E 4. A 5. C
【解析】1. 句意:杰克的爷爷今天身体很好。fine 表示(身体)健康的,故答案为 B。
2. 句意:她用一些绳子捆这个盒子。strings 绳子,some 后接可数名词复数,故答案为 D。
3. 句意:你能把这两个盒子连接在一起吗?connect 连接,can 后用动词原形,故答案为 E。
4. 句意:鸟儿用它的翅膀在天空飞翔。wings 翅膀,符合鸟儿飞翔的常识,故答案为 A。
5. 句意:我们每周五为美术课做准备。prepare for 为…… 做准备,是固定短语,故答案为 C。
三、单项选择。
1. C 2. B 3. A 4. C 5. C
1. C
【解析】句意:Lily 的妈妈昨天心情很好。yesterday 是昨天,句子要用一般过去时,主语 Lily's mother 是单数,be 动词用 was,故答案为 C。
2. B
【解析】句意:汤姆清洗瓶子,然后在瓶子顶部弄一个洞。and 连接并列成分,前半句 cleans 是一般现在时,主语 he 是第三人称单数,动词用 makes,故答案为 B。
3. A
【解析】句意:你能想出一个解决这个问题的好办法吗?think of 意为想出;think about 意为思考;think over 意为仔细考虑,此处表示想出办法,故答案为 A。
4. C
【解析】句意:—— 你知道谁发明了雨伞吗?—— 不,我不知道。雨伞是过去被发明的,要用动词过去式 invented;invention 是名词发明,invent 是动词原形,故答案为 C。
5. C
【解析】句意:汤姆有一个喂鸟的主意。idea 以元音音素开头,用冠词 an;to 后面接动词原形 feed,feeder 是名词喂食器,故答案为 C。
四、【新情境题·名人事迹】请选词补全对怀特兄弟的介绍。
1. A 2. A 3. A 4. C 5. A
【导语】本文讲述怀特兄弟观察鸟类,发明飞行机器的故事。
【解析】1. 句意:怀特兄弟真的很喜欢发明东西。invent 发明;build 建造;draw 画画,结合后文 invent,故答案为 A。
2. 句意:每次外出,他们看见一些鸟儿在天空快乐地飞翔。watch … doing sth 看见…… 正在做某事,fly 飞,故答案为 A。
3. 句意:他们想像鸟儿一样飞很酷,所以他们想要发明一台飞行机器。machine 机器;bird 鸟;plane 飞机,下文出现 flying machine,故答案为 A。
4. 句意:首先,他们仔细观察并且学习鸟儿如何用翅膀飞行。draw 画;watch 观看;learn 学习,故答案为 C。
5. 句意:接下来他们一起讨论,画出他们飞行机器的图纸。draw a picture 画画,是固定搭配,故答案为 A。
五、【新语篇·名人传记】从蔡伦到爱迪生和莱特兄弟,再到其他现代发明家,创新与发明让生活变得更美好。阅读短文,选择正确的答案。
1. B 2. B 3. C 4. B 5. B
【导语】本文介绍了蔡伦、爱迪生、莱特兄弟三位发明家的事迹。
【解析】 1. 句意:大约 2020 年前蔡伦做了什么?根据文中 “About 2,020 years ago, Cai Lun improved the way to make paper.”,可知蔡伦改进了造纸的方法,故答案为 B。
2. 句意:为什么人们仍然记得爱迪生的电灯泡?根据短文,爱迪生的灯泡在日常生活中很实用,改变了人们的生活,故答案为 B。
3. 句意:莱特兄弟观看什么来获取飞机的灵感?根据文中 “They watched eagles fly and designed their first plane like a kite.”,可知他们观察鹰,故答案为 C。
4. 句意:如果爱迪生没有发明实用的电灯泡会发生什么?根据文中 “If he hadn’t invented the practical light bulbs, we might still be using candles.”,可知人们夜晚可能还在使用蜡烛,故答案为 B。
5. 句意:爱迪生部分划线单词 “practical” 的意思是?结合灯泡的用途,practical 意为 “实用的”,故答案为 B。
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