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Unit 5 Great inventions
Lesson 1
一、根据句意及汉语或首字母提示填写单词。
1. Our teacher encourages us to read more books every day to enrich our ___________ (知识).
2. Nothing in the world is ___________ (绝对地) right or wrong. Every coin has two sides.
3. Video meetings, online classrooms and stay-at-home ___________ (娱乐) have become a lifeline to many people.
4. Our time in the middle school will be one of the most important p __________ of our life.
5. The facial expression of Mona Lisa is one of the most __________ (fascinate) parts of the painting.
二、补全对话
阅读下面的对话，根据上下文，选择适当的选项补全对话，使句意完整、符合逻辑。（其中有两项多余选项）。
(Lucy and Tom are talking in front of the library. Lucy=L, Tom=T)
L: Technology is changing our world. 　1． 　
T: Yes, it is. With the development of technology, computers were invented.
L: 　2． 　
T: It's said that John Vincent Atanas off invented the first computer in the 1940s.
L: What a helpful invention! 　3． 　
T: Yeah, we can search for information on the computer.
L: 　4． 　
T: With the development, there are lots of inventions in our daily life.
L: 　5． 　
T: Let us look forward to more inventions.
A. It brings lots of advantages to our life.
B. We are looking for information.
C. Technology also has lots of disadvantages.
D. We can do many things on the computer.
E. Do you know when the computers were invented
F. Voice assistant, smart sweeping robot, and so on.
G. Besides this, we can play games on the computer in our spare time.
三、完形填空
Inventions are amazing creations that 1． our world.
Throughout history, many great inventions have been made. The 2． of the steam engine started the Industrial Revolution. It changed the way people 3． and traveled.
In modern times, inventions like the computer and the Internet have 4． our lives completely. We can now communicate with people around the world in seconds and get information 5． .
Inventions often come from people's need to solve 6． For example, the invention of the umbrella was to protect people from rain. The invention of glasses helped people with 7． problems see better.
However, not all inventions are perfect. Some may have 8． effects on the environment or society. So, inventors need to think about the 9． of their inventions.
We should respect inventors and their 10． . Their creations make our lives better.
1．A． change B． make C． do D． have
2．A． inventor B． invention C． discoverer D． discovery
3．A． played B． worked C． studied D． slept
4．A． changed B． made C． did D． had
5．A． slowly B． quickly C． easily D． hardly
6．A． jobs B． problems C． work D． time
7．A． hearing B． speaking C． vision D． smell
8．A． good B． bad C． helpful D． friendly
9．A． uses B． effects C． jobs D． time
10．A． inventions B． jobs C． time D． ideas
四、阅读。
In history, great inventions have greatly changed how we live, work and communicate.
The wheel is one of the most important inventions in history. The oldest known wheel is from Mesopotamia, around 3500 B.C., but nobody knows who invented it. Early wheels were made of wood. The invention of the wheel is often seen as the starting point of human technological development.
Before the telephone, letters or the telegraph (电报) were used to communicate far away. The first telephone was invented by American Alexander Bell in 1876. It made the world smaller and let people communicate at once. With the arrival of the mobile phone in the 1980s, people could communicate more conveniently.
The light bulb's invention changed our world. It freed us from depending on natural light, so we could work well day and night. Many inventors helped develop this great technology in the 1800s. Thomas Edison, a famous American inventor who is seen as the main inventor of the light bulb, invented it in 1879.
The compass was invented by ancient Chinese people during the Song Dynasty, between the 11th and 12th centuries. Before it appeared, people often got lost at sea as they couldn't find directions. However, the compass helped them know which way was north, making sea travel much safer and helped people to discover new lands around the world.
1．Where was the oldest known wheel found
A．Ancient China B．Egypt C．America D．Mesopotamia
2．Which aspect (方面) about the first telephone is NOT mentioned
A．Material B．Time of invention
C．Inventor D．Influence
3．What did the invention of the light bulb help people do
A．It helped people communicate with others far away at once.
B．It helped people work well both during the day and at night.
C．It helped people find directions and travel safely at sea.
D．It helped people make more useful tools in the 1800s.
4．Which of the following is NOT true according to the text
A．Nobody knows who invented the wheel.
B．Two of the inventions appeared in the 19th century.
C．Neither Alexander Bell nor Thomas Edison is American.
D．The invention of the compass made sea travel much safer.
5．What's the main purpose (目的) of the text
A．To explain how to invent important things like the wheel and the telephone.
B．To introduce several important inventions and their influences on humans.
C．To compare which invention has the greatest influence on modern life.
D．To encourage people to be inventors and create new technologies.
答案
一、1.knowledge 2.absolutely 3.entertainment 4.eriods 5.fascinating
二、AEDGF
三、ABBAB CBBAD
四、DABCB

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